[timens] 3cc8de9dcb: RIP:posix_get_boottime
by kernel test robot
FYI, we noticed the following commit (built with gcc-6):
commit: 3cc8de9dcbe53955edcc65122f169666b4f6cbd9 ("[RFC 04/20] timens: Introduce CLOCK_BOOTTIME offset")
url: https://github.com/0day-ci/linux/commits/Dmitry-Safonov/ns-Introduce-Time...
in testcase: boot
on test machine: qemu-system-x86_64 -enable-kvm -cpu IvyBridge -smp 4 -m 2G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+---------------------------------------------------------+------------+------------+
| | 05dd6588ce | 3cc8de9dcb |
+---------------------------------------------------------+------------+------------+
| boot_successes | 2 | 0 |
| boot_failures | 13 | 10 |
| invoked_oom-killer:gfp_mask=0x | 2 | 6 |
| Mem-Info | 2 | 6 |
| Out_of_memory_and_no_killable_processes | 2 | 6 |
| Kernel_panic-not_syncing:System_is_deadlocked_on_memory | 2 | 6 |
| BUG:unable_to_handle_kernel | 10 | 4 |
| Oops:#[##] | 11 | 4 |
| RIP:timens_adjust_monotonic | 11 | |
| Kernel_panic-not_syncing:Fatal_exception | 11 | 4 |
| RIP:posix_get_boottime | 0 | 4 |
+---------------------------------------------------------+------------+------------+
[ 9.781291] BUG: unable to handle kernel NULL pointer dereference at 0000000000000030
[ 9.782843] PGD 0 P4D 0
[ 9.783186] Oops: 0000 [#1] PTI
[ 9.783604] CPU: 0 PID: 1 Comm: systemd Not tainted 4.19.0-rc4-00099-g3cc8de9d #1
[ 9.784565] RIP: 0010:posix_get_boottime+0x3c/0xad
[ 9.785183] Code: 8b 04 25 28 00 00 00 48 89 45 e0 31 c0 e8 20 67 03 00 48 8b 04 25 40 50 04 82 48 8b 80 c0 04 00 00 bf 01 00 00 00 48 8b 40 30 <4c> 8b 60 30 e8 10 88 ff ff 48 89 c7 e8 d9 12 ff ff 4d 85 e4 48 89
[ 9.787540] RSP: 0018:ffffc9000000be88 EFLAGS: 00010293
[ 9.788211] RAX: 0000000000000000 RBX: ffffc9000000bed0 RCX: ffff880076898040
[ 9.789112] RDX: 0000000000000000 RSI: ffffffff8113136f RDI: 0000000000000001
[ 9.790028] RBP: ffffc9000000beb8 R08: 0000000000000000 R09: 0000000000000000
[ 9.790936] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff81c111a0
[ 9.791840] R13: 0000000000000007 R14: 00007ffd481e35e0 R15: 0000000000000000
[ 9.792747] FS: 00007fd2fc3c9940(0000) GS:ffffffff82041000(0000) knlGS:0000000000000000
[ 9.793769] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.794510] CR2: 0000000000000030 CR3: 000000007fb2e000 CR4: 00000000001406b0
[ 9.795413] Call Trace:
[ 9.795738] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
[ 9.796422] __se_sys_clock_gettime+0x51/0xa7
[ 9.796970] ? lockdep_hardirqs_on+0x144/0x19e
[ 9.797540] __x64_sys_clock_gettime+0x1a/0x1d
[ 9.798098] do_syscall_64+0x73/0x1d2
[ 9.798569] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 9.799251] RIP: 0033:0x7ffd481eabbc
[ 9.799709] Code: f8 48 8b 15 36 c5 ff ff 48 89 16 48 8b 15 34 c5 ff ff 48 89 56 08 3b 03 0f 84 0a ff ff ff eb db 49 63 fb b8 e4 00 00 00 0f 05 <48> 83 c4 10 5b 41 5c 41 5d 5d c3 66 0f 1f 84 00 00 00 00 00 55 48
[ 9.802405] RSP: 002b:00007ffd481e3588 EFLAGS: 00000202 ORIG_RAX: 00000000000000e4
[ 9.803735] RAX: ffffffffffffffda RBX: 00007ffd481e7080 RCX: 00007ffd481eabbc
[ 9.804844] RDX: ffffffffffffffff RSI: 00007ffd481e35e0 RDI: 0000000000000007
[ 9.806155] RBP: 00007ffd481e35b0 R08: 0000000000000004 R09: 000000032ddb0949
[ 9.807568] R10: 000dc97587800000 R11: 0000000000000202 R12: 00007ffd481e3620
[ 9.808965] R13: 00007ffd481e3594 R14: 0000000000000001 R15: 0000000000000000
[ 9.810438] Modules linked in: ip_tables x_tables
[ 9.811034] CR2: 0000000000000030
[ 9.811629] ---[ end trace a935ae5a1b8f0750 ]---
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
Rong Chen
2 years, 11 months
[rcutorture] 5aa56a54ce: WARNING:at_kernel/rcu/rcutorture.c:#rcu_torture_fwd_prog
by kernel test robot
FYI, we noticed the following commit (built with gcc-7):
commit: 5aa56a54ce92761e974f93592f69b75b8c2398a8 ("rcutorture: Add call_rcu() flooding forward-progress tests")
https://git.kernel.org/cgit/linux/kernel/git/paulmck/linux-rcu.git dev
in testcase: trinity
with following parameters:
runtime: 300s
test-description: Trinity is a linux system call fuzz tester.
test-url: http://codemonkey.org.uk/projects/trinity/
on test machine: qemu-system-x86_64 -enable-kvm -cpu Haswell,+smep,+smap -smp 2 -m 512M
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+------------------------------------------------------------------+------------+------------+
| | 0b1aba265b | 5aa56a54ce |
+------------------------------------------------------------------+------------+------------+
| boot_successes | 0 | 0 |
| boot_failures | 10 | 14 |
| invoked_oom-killer:gfp_mask=0x | 2 | 4 |
| Mem-Info | 10 | 14 |
| Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 2 | 4 |
| INFO:trying_to_register_non-static_key | 8 | 10 |
| WARNING:at_mm/page_alloc.c:#__alloc_pages_slowpath | 8 | 10 |
| RIP:__alloc_pages_slowpath | 8 | 10 |
| IP-Config:Auto-configuration_of_network_failed | 1 | 1 |
| BUG:soft_lockup-CPU##stuck_for#s | 7 | 7 |
| RIP:drm_mm_insert_node_in_range | 2 | 1 |
| Kernel_panic-not_syncing:softlockup:hung_tasks | 7 | 7 |
| RIP:rb_prev | 3 | 1 |
| RIP:separate_adjacent_colors | 1 | 4 |
| RIP:__orc_find | 1 | |
| WARNING:at_kernel/rcu/rcutorture.c:#rcu_torture_fwd_prog | 0 | 8 |
| RIP:rcu_torture_fwd_prog | 0 | 8 |
| RIP:add_hole | 0 | 1 |
+------------------------------------------------------------------+------------+------------+
[ 807.497867] WARNING: CPU: 0 PID: 74 at kernel/rcu/rcutorture.c:1840 rcu_torture_fwd_prog+0x7b6/0x967
[ 807.497867] CPU: 0 PID: 74 Comm: rcu_torture_fwd Tainted: G W 4.19.0-rc1-00150-g5aa56a5 #1
[ 807.497867] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 807.497867] RIP: 0010:rcu_torture_fwd_prog+0x7b6/0x967
[ 807.497867] Code: e3 13 00 eb bb 48 c7 05 22 08 4f 02 a0 08 08 85 c6 05 db b2 eb 03 00 e8 44 bd 0a 00 84 c0 0f 85 1a 01 00 00 49 83 fe 63 7f 02 <0f> 0b 48 8b 85 60 ff ff ff 4c 8b 85 58 ff ff ff 4c 03 85 50 ff ff
[ 807.497867] RSP: 0000:ffff88000dadfe00 EFLAGS: 00010287
[ 807.497867] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88000a838488
[ 807.497867] RDX: 1ffff10002175401 RSI: ffff88000fc0c5c0 RDI: ffff88000f1789a0
[ 807.497867] RBP: ffff88000dadfef0 R08: 0000000000000006 R09: ffff88000d35dc28
[ 807.497867] R10: ffffffff828001bf R11: 0000000000400000 R12: 0000000100079309
[ 807.497867] R13: 0000000000000009 R14: 0000000000000003 R15: 0000000000000000
[ 807.497867] FS: 0000000000000000(0000) GS:ffff880015200000(0000) knlGS:0000000000000000
[ 807.497867] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 807.497867] CR2: 0000000000000000 CR3: 0000000003614001 CR4: 00000000000206b0
[ 807.497867] Call Trace:
[ 807.497867] ? rcu_torture_stall+0x143/0x143
[ 807.497867] ? do_raw_spin_unlock+0x5a/0x1a4
[ 807.497867] ? _raw_spin_unlock_irqrestore+0x2b/0x35
[ 807.497867] ? kthread+0x2d6/0x2e5
[ 807.497867] kthread+0x2d6/0x2e5
[ 807.497867] ? rcu_torture_stall+0x143/0x143
[ 807.497867] ? __kthread_cancel_work+0x1bd/0x1bd
[ 807.497867] ret_from_fork+0x1f/0x30
[ 807.497867] ---[ end trace ceba381628b0f9d7 ]---
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
Rong Chen
2 years, 11 months
[posix] 25217c6e39: BUG:KASAN:null-ptr-deref_in_c
by kernel test robot
FYI, we noticed the following commit (built with gcc-4.9):
commit: 25217c6e39560eeadb338e0140ee215410200b67 ("[RFC 13/20] posix-timers/timens: Take into account clock offsets")
url: https://github.com/0day-ci/linux/commits/Dmitry-Safonov/ns-Introduce-Time...
in testcase: boot
on test machine: qemu-system-x86_64 -enable-kvm -cpu qemu64,+ssse3 -smp 4 -m 8G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+---------------------------------------------------------+------------+------------+
| | fb1111e1a5 | 25217c6e39 |
+---------------------------------------------------------+------------+------------+
| boot_successes | 0 | 0 |
| boot_failures | 27 | 16 |
| BUG:KASAN:null-ptr-deref_in_p | 21 | |
| BUG:unable_to_handle_kernel | 21 | 8 |
| Oops:#[##] | 21 | 8 |
| RIP:posix_get_boottime | 21 | |
| Kernel_panic-not_syncing:Fatal_exception | 21 | 8 |
| invoked_oom-killer:gfp_mask=0x | 6 | 6 |
| Mem-Info | 6 | 6 |
| Out_of_memory_and_no_killable_processes | 6 | 6 |
| Kernel_panic-not_syncing:System_is_deadlocked_on_memory | 6 | 6 |
| BUG:KASAN:null-ptr-deref_in_c | 0 | 8 |
| RIP:common_timens_adjust | 0 | 8 |
| BUG:kernel_hang_in_boot_stage | 0 | 2 |
+---------------------------------------------------------+------------+------------+
[ 546.918732] BUG: KASAN: null-ptr-deref in common_timens_adjust+0x4e/0x270
[ 546.919884] Read of size 8 at addr 0000000000000030 by task systemd/1
[ 546.920963]
[ 546.921249] CPU: 1 PID: 1 Comm: systemd Not tainted 4.19.0-rc4-00108-g25217c6 #1
[ 546.922492] Call Trace:
[ 546.922944] dump_stack+0x138/0x1d8
[ 546.923554] ? common_timens_adjust+0x4e/0x270
[ 546.924310] kasan_report+0x26e/0x390
[ 546.924959] __asan_load8+0x54/0x90
[ 546.925569] common_timens_adjust+0x4e/0x270
[ 546.926311] __x64_sys_clock_gettime+0x10b/0x140
[ 546.927114] do_syscall_64+0x1c3/0x280
[ 546.927779] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 546.928648] RIP: 0033:0x7ffc593a1a28
[ 546.929269] Code: 2d 00 ca 9a 3b 83 c2 01 48 3d ff c9 9a 3b 77 ef 48 01 16 45 85 c0 48 89 46 08 0f 85 4b ff ff ff 48 63 ff b8 e4 00 00 00 0f 05 <5b> 5d c3 85 ff 75 ef 44 8b 0d 4a c6 ff ff 41 f6 c1 01 0f 85 e6 01
[ 546.932344] RSP: 002b:00007ffc5935d878 EFLAGS: 00000202 ORIG_RAX: 00000000000000e4
[ 546.933619] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ffc593a1a28
[ 546.934818] RDX: ffffffffffffffff RSI: 00007ffc5935d8b0 RDI: 0000000000000007
[ 546.936012] RBP: 00007ffc5935d880 R08: 0000000000000002 R09: 000000000003b1e6
[ 546.937205] R10: 0014e3686b800000 R11: 0000000000000202 R12: 00007ffc5935d8f0
[ 546.938401] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[ 546.939622] ==================================================================
[ 546.940817] Disabling lock debugging due to kernel taint
[ 546.942018] BUG: unable to handle kernel NULL pointer dereference at 0000000000000030
[ 546.943328] PGD 0 P4D 0
[ 546.943791] Oops: 0000 [#1] SMP KASAN PTI
[ 546.944486] CPU: 1 PID: 1 Comm: systemd Tainted: G B 4.19.0-rc4-00108-g25217c6 #1
[ 546.945962] RIP: 0010:common_timens_adjust+0x4e/0x270
[ 546.946819] Code: 00 06 00 00 48 83 ec 18 e8 ef 48 20 00 48 8b 9b 00 06 00 00 48 8d 7b 30 e8 df 48 20 00 48 8b 5b 30 48 8d 7b 30 e8 d2 48 20 00 <4c> 8b 6b 30 be 08 00 00 00 4d 85 ed 41 0f 94 c6 4c 89 f3 83 e3 01
[ 546.949841] RSP: 0018:ffff8801f5987e90 EFLAGS: 00010286
[ 546.950722] RAX: ffff8801f597e100 RBX: 0000000000000000 RCX: ffffffff812f2e5a
[ 546.951906] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000246
[ 546.953094] RBP: ffff8801f5987ed0 R08: fffffbfff066a22a R09: fffffbfff066a22a
[ 546.954275] R10: 0000000000000001 R11: fffffbfff066a229 R12: ffff8801f5987ee0
[ 546.955460] R13: 0000000000000007 R14: 00007ffc5935d8b0 R15: 0000000000000007
[ 546.956653] FS: 00007f1603e4d940(0000) GS:ffff8801f7000000(0000) knlGS:0000000000000000
[ 546.957994] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 546.958955] CR2: 0000000000000030 CR3: 00000001ddcfa000 CR4: 00000000000006a0
[ 546.960133] Call Trace:
[ 546.960577] __x64_sys_clock_gettime+0x10b/0x140
[ 546.961363] do_syscall_64+0x1c3/0x280
[ 546.962015] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 546.962862] RIP: 0033:0x7ffc593a1a28
[ 546.963472] Code: 2d 00 ca 9a 3b 83 c2 01 48 3d ff c9 9a 3b 77 ef 48 01 16 45 85 c0 48 89 46 08 0f 85 4b ff ff ff 48 63 ff b8 e4 00 00 00 0f 05 <5b> 5d c3 85 ff 75 ef 44 8b 0d 4a c6 ff ff 41 f6 c1 01 0f 85 e6 01
[ 546.966532] RSP: 002b:00007ffc5935d878 EFLAGS: 00000202 ORIG_RAX: 00000000000000e4
[ 546.967796] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ffc593a1a28
[ 546.968990] RDX: ffffffffffffffff RSI: 00007ffc5935d8b0 RDI: 0000000000000007
[ 546.970168] RBP: 00007ffc5935d880 R08: 0000000000000002 R09: 000000000003b1e6
[ 546.971337] R10: 0014e3686b800000 R11: 0000000000000202 R12: 00007ffc5935d8f0
[ 546.972516] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
[ 546.973708] Modules linked in: autofs4
[ 546.974354] CR2: 0000000000000030
[ 546.974960] ---[ end trace f820e59e021274ff ]---
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
Rong Chen
2 years, 11 months
6885ce23f4 ("rcu: Affinity forward-progress test to avoid .."): BUG: unable to handle kernel NULL pointer dereference at 00000000
by kernel test robot
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev
commit 6885ce23f45124f79c1fcade07442cc74f82f640
Author: Paul E. McKenney <paulmck(a)linux.ibm.com>
AuthorDate: Fri Sep 21 18:08:09 2018 -0700
Commit: Paul E. McKenney <paulmck(a)linux.ibm.com>
CommitDate: Fri Sep 21 18:08:09 2018 -0700
rcu: Affinity forward-progress test to avoid housekeeping CPUs
This commit affinities the forward-progress tests to avoid hogging a
housekeeping CPU on the theory that the offloaded callbacks will be
running on those housekeeping CPUs.
Signed-off-by: Paul E. McKenney <paulmck(a)linux.ibm.com>
e48d34ec66 MAINTAINERS: Update from @linux.vnet.ibm.com to @linux.ibm.com
6885ce23f4 rcu: Affinity forward-progress test to avoid housekeeping CPUs
54bc47a713 doc: rcu: Update description of gp_seq fields in rcu_data
+-----------------------------------------------------+------------+------------+------------+
| | e48d34ec66 | 6885ce23f4 | 54bc47a713 |
+-----------------------------------------------------+------------+------------+------------+
| boot_successes | 2 | 0 | 0 |
| boot_failures | 50 | 13 | 30 |
| WARNING:at_arch/x86/mm/dump_pagetables.c:#note_page | 50 | | |
| EIP:note_page | 50 | | |
| BUG:kernel_hang_in_test_stage | 1 | | |
| Mem-Info | 1 | | |
| BUG:unable_to_handle_kernel | 0 | 13 | 30 |
| Oops:#[##] | 0 | 13 | 30 |
| EIP:__bitmap_weight | 0 | 13 | 30 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 13 | 30 |
+-----------------------------------------------------+------------+------------+------------+
[ 0.940692] rcu-torture: torture_shuffle task started
[ 0.941272] rcu-torture: Creating rcu_torture_fwd_prog task
[ 0.941931] rcu-torture: torture_stutter task started
[ 0.943774] Kprobe smoke test: started
[ 0.944752] rcu-torture: rcu_torture_fwd_progress task started
[ 0.945917] BUG: unable to handle kernel NULL pointer dereference at 00000000
[ 0.946717] *pdpt = 0000000000000000 *pde = f000ff53f000ff53
[ 0.947354] Oops: 0000 [#1] PREEMPT SMP
[ 0.947787] CPU: 0 PID: 42 Comm: rcu_torture_fwd Not tainted 4.19.0-rc1-00167-g6885ce2 #2
[ 0.948695] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 0.948743] EIP: __bitmap_weight+0x63/0x70
[ 0.948743] Code: da b8 ff ff ff ff 89 d1 d3 e8 23 06 f3 0f b8 c0 90 8d 3c 18 5b 89 f8 5e 5f 5d c3 85 d2 74 13 f7 da bb ff ff ff ff 89 d1 d3 eb <23> 18 89 d8 31 db eb da 31 ff eb de 90 39 ca 73 1c 0f a3 10 0f 92
[ 0.948743] EAX: 00000000 EBX: 00000001 ECX: ffffffff EDX: ffffffff
[ 0.948743] ESI: 4df236e0 EDI: 4d73aa00 EBP: 4d73df34 ESP: 4d73df28
[ 0.948743] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210a03
[ 0.948743] CR0: 80050033 CR2: 00000000 CR3: 01e50000 CR4: 001406b0
[ 0.948743] Call Trace:
[ 0.948743] ? rcu_bind_current_to_nocb+0x13/0x40
[ 0.948743] ? rcu_torture_fwd_prog+0x27/0x4c0
[ 0.948743] ? kthread+0xd5/0x110
[ 0.948743] ? rcu_torture_read_unlock+0x20/0x20
[ 0.948743] ? kthread_cancel_delayed_work_sync+0x10/0x10
[ 0.948743] ? ret_from_fork+0x2e/0x38
[ 0.948743] Modules linked in:
[ 0.948743] CR2: 0000000000000000
[ 0.948743] ---[ end trace fd7f5d33ae8d2826 ]---
[ 0.948743] EIP: __bitmap_weight+0x63/0x70
# HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD
git bisect start 43dfa9fc03d55df90f67eb4d40dec32a4600460a 6bf4ca7fbc85d80446ac01c0d1d77db4d91a6d84 --
git bisect bad 152cbe30f02a34ba5847136f882aeca71a3145fd # 13:04 B 0 11 26 0 Merge 'saeed/net-mlx5' into devel-spot-201809290842
git bisect good 0181982a5f3790924ddc89e2a1c89188f2471b4f # 13:20 G 11 0 11 11 Merge 'mediatek/v4.19-next/dts64' into devel-spot-201809290842
git bisect good 92c92e1cb33c359f67fb849ba250eb0d7b6cd466 # 13:39 G 11 0 11 11 Merge 'paulburton/travis-mips-next' into devel-spot-201809290842
git bisect good 84564ed43947f17832fcf62a1ce4dae568341ac5 # 13:57 G 11 0 11 11 Merge 'bp/for-next' into devel-spot-201809290842
git bisect good df0973559121204e6b47f8cacb7d7ede7b16e542 # 14:08 G 11 0 11 11 Merge 'linux-review/Wanpeng-Li/KVM-LAPIC-Tune-lapic_timer_advance_ns-automatically/20180928-143045' into devel-spot-201809290842
git bisect good af1a302a702795b75969fb3fe75422c24f3475f9 # 14:20 G 11 0 11 11 Merge 'cryptodev/master' into devel-spot-201809290842
git bisect bad 758bfd205a314e9bb18ce4c33813d3da7f2fc86d # 14:36 B 0 11 26 0 Merge 'linux-review/Leonardo-Br-s/Remove-errors-building-drivers-DRIVERNAME/20180928-101132' into devel-spot-201809290842
git bisect good cbc82a1a07d4d780126dc2cb7fa7a45875dc76db # 14:45 G 11 0 11 11 Merge 'radeon-alex/drm-next-4.20-wip' into devel-spot-201809290842
git bisect bad 06be9ada78fce3681ee1ff551a8301dd25937662 # 15:07 B 0 11 26 0 Merge 'rcu/dev' into devel-spot-201809290842
git bisect good 6eb95cc4507a765de06d30028390da1b4a9c8e5c # 15:16 G 10 0 11 11 rcu: Clean up flavor-related definitions and comments in srcutree.h
git bisect good b56ada120921fbb0a4fb2a5bee163717182e7e9e # 15:27 G 11 0 11 11 Merge branches 'doc.2018.08.30a', 'dynticks.2018.08.30b', 'srcu.2018.08.30b' and 'torture.2018.08.29a' into HEAD
git bisect good 4afa15c62fef2ba2d9590fd7fb4b62f9e3a5033f # 15:39 G 11 0 11 11 doc: Set down forward-progress requirements
git bisect good dc6befc5ba00e1d03c5010f35b68d30626050452 # 15:49 G 10 0 10 11 rcu: Stop expedited grace periods from relying on stop-machine
git bisect bad 8b9b00c5ed6974df8d0b62a532e39156e0677b3c # 16:00 B 0 11 26 0 rcu: Remove unused rcu_state externs
git bisect bad 6885ce23f45124f79c1fcade07442cc74f82f640 # 16:08 B 0 9 24 0 rcu: Affinity forward-progress test to avoid housekeeping CPUs
git bisect good e48d34ec6603468f358fb85c72730ebcec7e9b8c # 16:23 G 10 0 10 10 MAINTAINERS: Update from @linux.vnet.ibm.com to @linux.ibm.com
# first bad commit: [6885ce23f45124f79c1fcade07442cc74f82f640] rcu: Affinity forward-progress test to avoid housekeeping CPUs
git bisect good e48d34ec6603468f358fb85c72730ebcec7e9b8c # 16:25 G 32 0 32 45 MAINTAINERS: Update from @linux.vnet.ibm.com to @linux.ibm.com
# extra tests with debug options
git bisect bad 6885ce23f45124f79c1fcade07442cc74f82f640 # 16:35 B 0 11 28 2 rcu: Affinity forward-progress test to avoid housekeeping CPUs
# extra tests on HEAD of linux-devel/devel-spot-201809290842
git bisect bad 43dfa9fc03d55df90f67eb4d40dec32a4600460a # 16:35 B 0 19 37 0 0day head guard for 'devel-spot-201809290842'
# extra tests on tree/branch rcu/dev
git bisect bad 54bc47a71320f5479342e70ad03471711df7ed73 # 16:45 B 0 11 37 11 doc: rcu: Update description of gp_seq fields in rcu_data
# extra tests with first bad commit reverted
git bisect good 6369f4f07f24b927db9ba01023177382180c9899 # 16:59 G 11 0 11 11 Revert "rcu: Affinity forward-progress test to avoid housekeeping CPUs"
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
2 years, 11 months
[async] 06f4f5bfb3: BUG:sleeping_function_called_from_invalid_context_at_include/linux/percpu-rwsem.h
by kernel test robot
FYI, we noticed the following commit (built with gcc-7):
commit: 06f4f5bfb3404db7b4c45b0e4757b1e9a76cdd9a ("[PATCH v4 4/5] async: Add support for queueing on specific node")
url: https://github.com/0day-ci/linux/commits/Alexander-Duyck/Address-issues-s...
in testcase: fio-basic
with following parameters:
runtime: 300s
disk: 1HDD
fs: xfs
nr_task: 1
test_size: 128G
rw: write
bs: 4k
ioengine: sync
ucode: 0x42d
cpufreq_governor: performance
fs2: nfsv4
test-description: Fio is a tool that will spawn a number of threads or processes doing a particular type of I/O action as specified by the user.
test-url: https://github.com/axboe/fio
on test machine: 48 threads Intel(R) Xeon(R) CPU E5-2697 v2 @ 2.70GHz with 64G memory
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+-----------------------------------------------------------------------------------+------------+------------+
| | 0f537b5505 | 06f4f5bfb3 |
+-----------------------------------------------------------------------------------+------------+------------+
| boot_successes | 3 | 4 |
| boot_failures | 11 | 9 |
| WARNING:at#for_ip_interrupt_entry/0x | 8 | 5 |
| WARNING:stack_recursion | 7 | 5 |
| WARNING:at#for_ip_swapgs_restore_regs_and_return_to_usermode/0x | 3 | 3 |
| BUG:sleeping_function_called_from_invalid_context_at_include/linux/percpu-rwsem.h | 0 | 9 |
+-----------------------------------------------------------------------------------+------------+------------+
[ 16.233052] BUG: sleeping function called from invalid context at include/linux/percpu-rwsem.h:34
[ 16.245303] in_atomic(): 1, irqs_disabled(): 1, pid: 555, name: scsi_eh_0
[ 16.245306] CPU: 1 PID: 555 Comm: scsi_eh_0 Not tainted 4.19.0-rc4-00184-g06f4f5b #1
Startin
[ 16.245309] Hardware name: Intel Corporation S2600WP/S2600WP, BIOS SE5C600.86B.02.02.0002.122320131210 12/23/2013
g OpenBSD Secure
[ 16.275455] Call Trace:
Shell server...
[ 16.279747] dump_stack+0x5c/0x7b
[ 16.284992] ___might_sleep+0xf1/0x110
[ 16.289548] cpus_read_lock+0x18/0x50
[ 16.289552] __async_schedule+0x163/0x210
0m] Reached targ
[ 16.289566] ? scsi_try_target_reset+0x90/0x90
et System Time S
[ 16.289569] ? sas_scsi_recover_host+0x2b9/0x390 [libsas]
ynchronized.
[ 16.289571] sas_scsi_recover_host+0x2b9/0x390 [libsas]
[ 16.289576] ? scsi_error_handler+0x3b/0x620
[ 16.333060] ? scsi_error_handler+0x9a/0x620
[ 16.333064] ? scsi_try_target_reset+0x90/0x90
0m] Started Dail
[ 16.349819] ? __wake_up_common+0x76/0x170
y apt download a
[ 16.355945] ? scsi_eh_get_sense+0x240/0x240
ctivities.
[ 16.362271] kthread+0x11e/0x140
[ 16.367041] ? kthread_associate_blkcg+0xb0/0xb0
[ 16.367048] ret_from_fork+0x35/0x40
0m] Started Daily apt upgrade and clean activities.
Starting LSB: Load kernel image with kexec...
[ 16.547582] ata7.00: ATA-8: WDC WD1003FBYZ-010FB0, 01.01V03, max UDMA/133
[ 16.555799] ata7.00: 1953525168 sectors, multi 0: LBA48 NCQ (depth 32)
[ 16.566308] ata7.00: configured for UDMA/133
[ 16.571765] sas: --- Exit sas_scsi_recover_host: busy: 0 failed: 0 tries: 1
[ 16.582543] scsi 0:0:0:0: Direct-Access ATA WDC WD1003FBYZ-0 1V03 PQ: 0 ANSI: 5
[ 16.592293] sas: DONE DISCOVERY on port 0, pid:698, result:0
[ 16.602838] scsi 0:0:0:0: Attached scsi generic sg0 type 0
[ 16.611425] sd 0:0:0:0: [sda] 1953525168 512-byte logical blocks: (1.00 TB/932 GiB)
[ 16.620677] sd 0:0:0:0: [sda] Write Protect is off
[ 16.626659] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 16.632977] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 16.692308] sda: sda1 sda2 sda3
[ 16.697284] sd 0:0:0:0: [sda] Attached SCSI disk
[ 17.073992] raid6: sse2x1 gen() 7636 MB/s
[ 17.095989] raid6: sse2x1 xor() 5824 MB/s
[ 17.117991] raid6: sse2x2 gen() 9554 MB/s
[ 17.139990] raid6: sse2x2 xor() 6521 MB/s
[ 17.161987] raid6: sse2x4 gen() 11550 MB/s
[ 17.183991] raid6: sse2x4 xor() 7769 MB/s
[ 17.189383] raid6: using algorithm sse2x4 gen() 11550 MB/s
[ 17.196124] raid6: .... xor() 7769 MB/s, rmw enabled
[ 17.202273] raid6: using ssse3x2 recovery algorithm
[ 17.212489] xor: automatically using best checksumming function avx
[ 17.247296] Btrfs loaded, crc32c=crc32c-generic
[ 17.254019] BTRFS: device fsid 83e57bc1-35de-4d61-8929-dc8aa3d711c2 devid 1 transid 4454 /dev/sda3
[ 20.961795] Kernel tests: Boot OK!
[ 20.961799]
[ 22.781499] BTRFS info (device sda3): disk space caching is enabled
[ 22.788537] BTRFS info (device sda3): has skinny extents
[ 22.878137] netpoll: netconsole: local port 6665
[ 22.883329] netpoll: netconsole: local IPv4 address 0.0.0.0
[ 22.889559] netpoll: netconsole: interface 'eth0'
[ 22.894835] netpoll: netconsole: remote port 6644
[ 22.900116] netpoll: netconsole: remote IPv4 address 192.168.2.1
[ 22.906837] netpoll: netconsole: remote ethernet address ff:ff:ff:ff:ff:ff
[ 22.914544] netpoll: netconsole: local IP 192.168.2.17
[ 22.920389] console [netcon0] enabled
[ 22.924517] netconsole: network logging started
[ 24.381587] install debs round one: dpkg -i --force-confdef --force-depends /opt/deb/sysstat_11.4.3-2_amd64.deb
[ 24.381593]
[ 24.395562] /opt/deb/gawk_1%3a4.1.4+dfsg-1_amd64.deb
[ 24.395563]
[ 24.403952] Selecting previously unselected package sysstat.
[ 24.403954]
[ 24.413629] (Reading database ... 16106 files and directories currently installed.)
[ 24.413630]
[ 24.425242] Preparing to unpack .../deb/sysstat_11.4.3-2_amd64.deb ...
[ 24.425244]
[ 24.434957] Unpacking sysstat (11.4.3-2) ...
[ 24.434959]
[ 24.442519] Selecting previously unselected package gawk.
[ 24.442520]
[ 24.451624] Preparing to unpack .../gawk_1%3a4.1.4+dfsg-1_amd64.deb ...
[ 24.451625]
[ 24.461553] Unpacking gawk (1:4.1.4+dfsg-1) ...
[ 24.461554]
[ 24.469073] Setting up sysstat (11.4.3-2) ...
[ 24.469075]
[ 24.476496] Setting up gawk (1:4.1.4+dfsg-1) ...
[ 24.476497]
[ 24.484539] Processing triggers for systemd (232-25+deb9u2) ...
[ 24.484540]
[ 24.494683] 23 Sep 03:19:18 ntpdate[865]: step time server 192.168.1.1 offset 18.120275 sec
[ 24.494684]
[ 24.506357] /lkp/lkp/src/bin/run-lkp
[ 24.506358]
[ 24.597525] device-mapper: uevent: version 1.0.3
[ 24.602963] device-mapper: ioctl: 4.39.0-ioctl (2018-04-03) initialised: dm-devel(a)redhat.com
[ 24.615614] random: crng init done
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
Thanks,
Rong Chen
2 years, 11 months
49193cb1b9 [ 3.151786] BUG: tried to access memory at 0x5785df30 while not in USER_DS
by kernel test robot
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git x86/uaccess
commit 49193cb1b90670d2d029517a41e9dc124ffc976e
Author: Andy Lutomirski <luto(a)kernel.org>
AuthorDate: Tue May 10 16:55:43 2016 -0700
Commit: Andy Lutomirski <luto(a)kernel.org>
CommitDate: Thu Sep 27 17:59:14 2018 -0700
[DEBUG] force CONFIG_DEBUG_UACCESS
This will help the 0day bot test the interesting case.
Signed-off-by: Andy Lutomirski <luto(a)kernel.org>
76b7d87e9f x86/uaccess: Add CONFIG_DEBUG_UACCESS to harden KERNEL_DS
49193cb1b9 [DEBUG] force CONFIG_DEBUG_UACCESS
+----------------------------------------------------+------------+------------+
| | 76b7d87e9f | 49193cb1b9 |
+----------------------------------------------------+------------+------------+
| boot_successes | 50 | 0 |
| boot_failures | 0 | 23 |
| BUG:tried_to_access_memory_at#while_not_in_USER_DS | 0 | 23 |
| kernel_BUG_at_arch/x86/mm/extable.c | 0 | 23 |
| invalid_opcode:#[##] | 0 | 23 |
| EIP:bad_uaccess_kernel_ds | 0 | 23 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 23 |
+----------------------------------------------------+------------+------------+
[ 3.148436] .................................... done.
[ 3.148994] Using IPI Shortcut mode
[ 3.149432] sched_clock: Marking stable (2961516166, 187472255)->(3543868566, -394880145)
[ 3.150647] Loading compiled-in X.509 certificates
[ 3.151206] page_owner is disabled
[ 3.151786] BUG: tried to access memory at 0x5785df30 while not in USER_DS
[ 3.152583] ------------[ cut here ]------------
[ 3.153081] kernel BUG at arch/x86/mm/extable.c:353!
[ 3.153806] invalid opcode: 0000 [#1] PREEMPT PTI
[ 3.154326] CPU: 0 PID: 86 Comm: kworker/u2:1 Not tainted 4.19.0-rc2-00016-g49193cb #264
[ 3.155195] Workqueue: events_unbound call_usermodehelper_exec_work
[ 3.155891] task.addr_limit: 0xffffffff
[ 3.156314] EIP: bad_uaccess_kernel_ds+0x13/0x15
[ 3.156812] Code: 89 da 89 f9 ff d6 5a 59 0f b6 c0 eb 02 31 c0 8d 65 f4 5b 5e 5f 5d c3 3e 8d 74 26 00 55 89 e5 50 68 d6 02 01 51 e8 62 c8 03 00 <0f> 0b 3e 8d 74 26 00 55 31 c0 89 e5 5d c3 55 a1 10 12 27 51 89 e5
[ 3.158787] EAX: 0000003e EBX: fffffffc ECX: 00000003 EDX: 00000054
[ 3.159488] ESI: 00000068 EDI: 5785df30 EBP: 5785dedc ESP: 5785ded4
[ 3.160159] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00210286
[ 3.160876] CR0: 80050033 CR2: 00000000 CR3: 1139c000 CR4: 000006d0
[ 3.161549] Call Trace:
[ 3.161823] ? kernel_wait4+0xdb/0xee
[ 3.162223] ? write_seqlock+0x2d/0x2d
[ 3.162659] ? call_usermodehelper_exec_work+0x46/0x86
[ 3.163219] ? process_one_work+0x1e9/0x31b
[ 3.163675] ? worker_thread+0x16b/0x20b
[ 3.164109] ? kthread+0xdc/0xde
[ 3.164463] ? rescuer_thread+0x1f5/0x1f5
[ 3.164899] ? kthread_create_worker_on_cpu+0x1c/0x1c
[ 3.165450] ? ret_from_fork+0x19/0x30
[ 3.165887] Modules linked in:
[ 3.166258] kworker/u2:1 (104) used greatest stack depth: 7120 bytes left
[ 3.167022] ---[ end trace e5c3ce82a1c2608c ]---
[ 3.167536] EIP: bad_uaccess_kernel_ds+0x13/0x15
# HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD
git bisect start 49193cb1b90670d2d029517a41e9dc124ffc976e bef459026b161fbc39d20dcba698ed0cfffbac38 --
git bisect good 691d149300b740e8e03a130ea630a7d383774c6d # 12:45 G 11 0 0 0 x86/fault: BUG() when KERNEL_DS uaccesses get page faults
git bisect good 9cf50775494dff2a520dc2b3833ac937949b4e8b # 13:05 G 11 0 0 0 x86/dumpstack: If addr_limit is non-default, display it
git bisect good 76b7d87e9f3a122b257c23e53d9fac9194ac3452 # 13:14 G 11 0 0 0 x86/uaccess: Add CONFIG_DEBUG_UACCESS to harden KERNEL_DS
# first bad commit: [49193cb1b90670d2d029517a41e9dc124ffc976e] [DEBUG] force CONFIG_DEBUG_UACCESS
git bisect good 76b7d87e9f3a122b257c23e53d9fac9194ac3452 # 13:17 G 31 0 0 0 x86/uaccess: Add CONFIG_DEBUG_UACCESS to harden KERNEL_DS
# extra tests with debug options
git bisect bad 49193cb1b90670d2d029517a41e9dc124ffc976e # 13:28 B 0 11 27 1 [DEBUG] force CONFIG_DEBUG_UACCESS
# extra tests on HEAD of luto/x86/uaccess
git bisect bad 49193cb1b90670d2d029517a41e9dc124ffc976e # 13:28 B 0 23 41 0 [DEBUG] force CONFIG_DEBUG_UACCESS
# extra tests on tree/branch luto/x86/uaccess
git bisect bad 49193cb1b90670d2d029517a41e9dc124ffc976e # 13:28 B 0 23 41 0 [DEBUG] force CONFIG_DEBUG_UACCESS
# extra tests with first bad commit reverted
git bisect good 3c6d091371c7b162302f172048c9fc4d058a5bcc # 14:05 G 11 0 0 0 Revert "[DEBUG] force CONFIG_DEBUG_UACCESS"
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
2 years, 11 months
[cfg80211] 958c961aff: BUG:spinlock_bad_magic_on_CPU
by kernel test robot
FYI, we noticed the following commit (built with gcc-4.9):
commit: 958c961aff029a583b8b5749d1805373cae14860 ("cfg80211: add peer measurement with FTM API")
https://git.kernel.org/cgit/linux/kernel/git/jberg/mac80211-next.git heads/refs/heads/ftm
in testcase: trinity
with following parameters:
runtime: 300s
test-description: Trinity is a linux system call fuzz tester.
test-url: http://codemonkey.org.uk/projects/trinity/
on test machine: qemu-system-i386 -enable-kvm -cpu Haswell,+smep,+smap -m 384M
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+------------------------------------------------------------------+------------+------------+
| | 0a6589c775 | 958c961aff |
+------------------------------------------------------------------+------------+------------+
| boot_successes | 18 | 0 |
| boot_failures | 6 | 10 |
| IP-Config:Auto-configuration_of_network_failed | 2 | 2 |
| Mem-Info | 4 | |
| invoked_oom-killer:gfp_mask=0x | 2 | |
| EIP:__put_user_4 | 1 | |
| Out_of_memory:Kill_process | 1 | |
| Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 1 | |
| BUG:spinlock_bad_magic_on_CPU | 0 | 10 |
| BUG:unable_to_handle_kernel | 0 | 10 |
| Oops:#[##] | 0 | 10 |
| EIP:kobject_get | 0 | 10 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 10 |
+------------------------------------------------------------------+------------+------------+
[ 14.939782] BUG: spinlock bad magic on CPU#0, swapper/0/1
[ 14.940635] lock: reg_requests_lock+0x0/0x28, .magic: 00000000, .owner: swapper/0/1, .owner_cpu: 0
[ 14.942033] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G T 4.19.0-rc2-00390-g958c961 #1
[ 14.943395] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 14.944663] Call Trace:
[ 14.945059] dump_stack+0x74/0xab
[ 14.945576] spin_bug+0x76/0xd0
[ 14.946072] do_raw_spin_unlock+0x4a/0x80
[ 14.946691] _raw_spin_unlock+0x1d/0x30
[ 14.947294] queue_regulatory_request+0x73/0x90
[ 14.947998] ? cfg80211_init+0x141/0x141
[ 14.948607] regulatory_hint_core+0x32/0x50
[ 14.949257] regulatory_init_db+0x17/0xcc
[ 14.949878] do_one_initcall+0x14e/0x44c
[ 14.950484] ? rcu_read_lock_sched_held+0x97/0xa0
[ 14.951209] ? trace_initcall_level+0x85/0xc6
[ 14.951884] kernel_init_freeable+0x209/0x2e8
[ 14.952557] ? rest_init+0xb0/0xb0
[ 14.953091] kernel_init+0x8/0xf0
[ 14.953605] ret_from_fork+0x2e/0x40
[ 14.954277] BUG: unable to handle kernel NULL pointer dereference at 00000034
[ 14.955371] *pde = 00000000
[ 14.955829] Oops: 0000 [#1] SMP PTI
[ 14.956379] CPU: 0 PID: 13 Comm: kworker/0:1 Tainted: G T 4.19.0-rc2-00390-g958c961 #1
[ 14.957773] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 14.959045] Workqueue: events reg_todo
[ 14.959627] EIP: kobject_get+0xa/0x40
[ 14.960196] Code: e8 1c 79 e1 fe e8 ab bc ff ff 58 5a 8b 55 f8 eb a6 b8 e0 da 81 b2 eb c9 90 8d b4 26 00 00 00 00 85 c0 74 17 55 89 e5 83 ec 04 <f6> 40 20 01 74 10 3e ff 40 1c 0f 88 a0 57 01 00 c9 f3 c3 8d 76 00
[ 14.963008] EAX: 00000014 EBX: beec70f0 ECX: 00000000 EDX: 006000c0
[ 14.963998] ESI: 00000000 EDI: b2808126 EBP: b0191e88 ESP: b0191e84
[ 14.964951] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 EFLAGS: 00210286
[ 14.965976] CR0: 80050033 CR2: 00000034 CR3: 02d1a000 CR4: 00040690
[ 14.966925] Call Trace:
[ 14.967311] get_device+0xf/0x20
[ 14.967810] request_firmware_nowait+0x67/0xd0
[ 14.968501] reg_query_database+0xea/0x160
[ 14.969147] ? restore_regulatory_settings+0x400/0x400
[ 14.969934] ? cfg80211_rdev_by_wiphy_idx+0xb/0x70
[ 14.970662] reg_process_hint+0x237/0x330
[ 14.971281] reg_todo+0xcc/0x240
[ 14.971780] process_one_work+0x1b3/0x550
[ 14.972404] worker_thread+0x39/0x3c0
[ 14.972974] kthread+0xd8/0x110
[ 14.973459] ? process_one_work+0x550/0x550
[ 14.974104] ? kthread_insert_work_sanity_check+0x60/0x60
[ 14.974931] ret_from_fork+0x2e/0x40
[ 14.975481] CR2: 0000000000000034
[ 14.976003] ---[ end trace b3a3f77488174a84 ]---
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
rongc
2 years, 11 months
[tipc] 3f32d0be6c: WARNING:possible_recursive_locking_detected
by kernel test robot
FYI, we noticed the following commit (built with gcc-6):
commit: 3f32d0be6c16b902b687453c962d17eea5b8ea19 ("tipc: lock wakeup & inputq at tipc_link_reset()")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git pending-fixes
in testcase: trinity
with following parameters:
runtime: 300s
test-description: Trinity is a linux system call fuzz tester.
test-url: http://codemonkey.org.uk/projects/trinity/
on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -m 256M
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+-------------------------------------------------------+------------+------------+
| | 94b6ddce71 | 3f32d0be6c |
+-------------------------------------------------------+------------+------------+
| boot_successes | 13 | 0 |
| boot_failures | 2 | 18 |
| WARNING:possible_circular_locking_dependency_detected | 2 | |
| WARNING:possible_recursive_locking_detected | 0 | 18 |
+-------------------------------------------------------+------------+------------+
[ 50.689529] WARNING: possible recursive locking detected
[ 50.689529] 4.19.0-rc5-00144-g3f32d0b #1 Not tainted
[ 50.689529] --------------------------------------------
[ 50.689529] swapper/0/1 is trying to acquire lock:
[ 50.689529] (____ptrval____) (&(&list->lock)->rlock#2){+...}, at: tipc_link_reset+0x3f/0x240
[ 50.689529]
[ 50.689529] but task is already holding lock:
[ 50.689529] (____ptrval____) (&(&list->lock)->rlock#2){+...}, at: tipc_link_reset+0x2f/0x240
[ 50.689529]
[ 50.689529] other info that might help us debug this:
[ 50.689529] Possible unsafe locking scenario:
[ 50.689529]
[ 50.689529] CPU0
[ 50.689529] ----
[ 50.689529] lock(&(&list->lock)->rlock#2);
[ 50.689529] lock(&(&list->lock)->rlock#2);
[ 50.689529]
[ 50.689529] *** DEADLOCK ***
[ 50.689529]
[ 50.689529] May be due to missing lock nesting notation
[ 50.689529]
[ 50.689529] 2 locks held by swapper/0/1:
[ 50.689529] #0: (____ptrval____) (pernet_ops_rwsem){+.+.}, at: register_pernet_subsys+0x15/0x3a
[ 50.689529] #1: (____ptrval____) (&(&list->lock)->rlock#2){+...}, at: tipc_link_reset+0x2f/0x240
[ 50.689529]
[ 50.689529] stack backtrace:
[ 50.689529] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.19.0-rc5-00144-g3f32d0b #1
[ 50.689529] Call Trace:
[ 50.689529] dump_stack+0x86/0xc0
[ 50.689529] validate_chain+0x844/0xaa5
[ 50.689529] ? sched_clock+0x9/0xd
[ 50.689529] ? sched_clock_local+0x11/0x7f
[ 50.689529] __lock_acquire+0x5e2/0x6d8
[ 50.689529] lock_acquire+0x161/0x1a9
[ 50.689529] ? tipc_link_reset+0x3f/0x240
[ 50.689529] _raw_spin_lock_bh+0x37/0x6d
[ 50.689529] ? tipc_link_reset+0x3f/0x240
[ 50.689529] tipc_link_reset+0x3f/0x240
[ 50.689529] tipc_link_bc_create+0x6f/0xb8
[ 50.689529] tipc_bcast_init+0x39c/0x3fa
[ 50.689529] tipc_init_net+0x1d1/0x20a
[ 50.689529] ? trace_event_define_fields_drv_wake_tx_queue+0x178/0x178
[ 50.689529] ops_init+0xfa/0x124
[ 50.689529] ? kvm_clock_read+0x18/0x21
[ 50.689529] ? tipc_init_net+0x20a/0x20a
[ 50.689529] register_pernet_operations+0x7a/0xa9
[ 50.689529] register_pernet_subsys+0x24/0x3a
[ 50.689529] tipc_init+0x65/0xb2
[ 50.689529] do_one_initcall+0xf7/0x298
[ 50.689529] kernel_init_freeable+0x282/0x34d
[ 50.689529] ? rest_init+0x22a/0x22a
[ 50.689529] kernel_init+0x9/0xf5
[ 50.689529] ret_from_fork+0x3a/0x50
[ 50.729187] tipc: Started in single node mode
[ 50.730086] 9pnet: Installing 9P2000 support
[ 50.731629] NET: Registered protocol family 36
[ 50.732600] Key type ceph registered
[ 50.733545] libceph: loaded (mon/osd proto 15/24)
[ 50.734851] openvswitch: Open vSwitch switching datapath
[ 50.736931] mpls_gso: MPLS GSO support
[ 50.738059] start plist test
[ 50.740671] end plist test
[ 50.742917] ... APIC ID: 00000000 (0)
[ 50.743522] ... APIC VERSION: 01050014
[ 50.743522] 0000000000000000000000000000000000000000000000000000000000000000
[ 50.743522] 0000000000000000000000000000000000000000000000000000000000000000
[ 50.743522] 0000000000000000000000000000000000000000000000000000000000001000
[ 50.748083] number of MP IRQ sources: 15.
[ 50.748702] number of IO-APIC #0 registers: 24.
[ 50.749337] testing the IO APIC.......................
[ 50.750176] IO APIC #0......
[ 50.750548] .... register #00: 00000000
[ 50.751013] ....... : physical APIC id: 00
[ 50.751632] ....... : Delivery Type: 0
[ 50.752126] ....... : LTS : 0
[ 50.752891] .... register #01: 00170011
[ 50.753619] ....... : max redirection entries: 17
[ 50.754566] ....... : PRQ implemented: 0
[ 50.755363] ....... : IO APIC version: 11
[ 50.756205] .... register #02: 00000000
[ 50.756939] ....... : arbitration: 00
[ 50.757700] .... IRQ redirection table:
[ 50.758423] IOAPIC 0:
[ 50.758858] pin00, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), M(0)
[ 50.760308] pin01, enabled , edge , high, V(25), IRR(0), S(0), physical, D(00), M(0)
[ 50.761721] pin02, enabled , edge , high, V(30), IRR(0), S(0), physical, D(00), M(0)
[ 50.763173] pin03, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), M(0)
[ 50.764598] pin04, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), M(0)
[ 50.766124] pin05, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), M(0)
[ 50.767655] pin06, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), M(0)
[ 50.769205] pin07, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), M(0)
[ 50.770739] pin08, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), M(0)
[ 50.772290] pin09, enabled , level, high, V(21), IRR(0), S(0), physical, D(00), M(0)
[ 50.773602] pin0a, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), M(0)
[ 50.774712] pin0b, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), M(0)
[ 50.776017] pin0c, enabled , edge , high, V(24), IRR(0), S(0), physical, D(00), M(0)
[ 50.777221] pin0d, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), M(0)
[ 50.778448] pin0e, enabled , edge , high, V(22), IRR(0), S(0), physical, D(00), M(0)
[ 50.779681] pin0f, enabled , edge , high, V(23), IRR(0), S(0), physical, D(00), M(0)
[ 50.781071] pin10, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), M(0)
[ 50.782400] pin11, disabled, edge , high, V(00), IRR(0), S(0), physical, D(00), M(0)
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
lkp
2 years, 11 months
49193cb1b9 ("[DEBUG] force CONFIG_DEBUG_UACCESS"): BUG: tried to access memory at 0x8050073 while not in USER_DS
by kernel test robot
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.git x86/uaccess
commit 49193cb1b90670d2d029517a41e9dc124ffc976e
Author: Andy Lutomirski <luto(a)kernel.org>
AuthorDate: Tue May 10 16:55:43 2016 -0700
Commit: Andy Lutomirski <luto(a)kernel.org>
CommitDate: Thu Sep 27 17:59:14 2018 -0700
[DEBUG] force CONFIG_DEBUG_UACCESS
This will help the 0day bot test the interesting case.
Signed-off-by: Andy Lutomirski <luto(a)kernel.org>
76b7d87e9f x86/uaccess: Add CONFIG_DEBUG_UACCESS to harden KERNEL_DS
49193cb1b9 [DEBUG] force CONFIG_DEBUG_UACCESS
+----------------------------------------------------+------------+------------+
| | 76b7d87e9f | 49193cb1b9 |
+----------------------------------------------------+------------+------------+
| boot_successes | 34 | 0 |
| boot_failures | 0 | 23 |
| BUG:tried_to_access_memory_at#while_not_in_USER_DS | 0 | 23 |
| kernel_BUG_at_arch/x86/mm/extable.c | 0 | 23 |
| invalid_opcode:#[##] | 0 | 23 |
| EIP:bad_uaccess_kernel_ds | 0 | 23 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 23 |
+----------------------------------------------------+------------+------------+
[ 8.986245] Write protecting the kernel text: 9148k
[ 8.987029] Write protecting the kernel read-only data: 4020k
[ 8.987741] NX-protecting the kernel data: 7236k
[ 8.988857] Run /init as init process
[ 8.994590] process 106 (init) attempted a POSIX timer syscall while CONFIG_POSIX_TIMERS is not set
[ 8.996054] BUG: tried to access memory at 0x8050073 while not in USER_DS
[ 8.996716] ------------[ cut here ]------------
[ 8.997112] kernel BUG at arch/x86/mm/extable.c:353!
[ 8.997621] invalid opcode: 0000 [#1] PTI
[ 8.997953] CPU: 0 PID: 106 Comm: init Not tainted 4.19.0-rc2-00016-g49193cb #43
[ 8.998553] EIP: bad_uaccess_kernel_ds+0x13/0x20
[ 8.998923] Code: 0f b6 c0 59 eb 03 90 31 c0 8d 65 f4 5b 5e 5f 5d c3 8d b6 00 00 00 00 55 89 e5 e8 88 6b ff ff 50 68 00 02 bd c1 e8 dd 30 06 00 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 55 89 e5 53 e8 67 6b ff ff
[ 9.000398] EAX: 0000003d EBX: cd0a3ac0 ECX: 00000001 EDX: 00000040
[ 9.000886] ESI: 08050070 EDI: cd0a7000 EBP: cd09df1c ESP: cd09df14
[ 9.001371] DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068 EFLAGS: 00010246
[ 9.001898] CR0: 80050033 CR2: 0804f520 CR3: 0d09e000 CR4: 001406b0
[ 9.002389] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 9.002877] DR6: fffe0ff0 DR7: 00000400
[ 9.003177] Call Trace:
[ 9.003376] count+0x36/0x120
[ 9.003695] __do_execve_file+0x459/0x820
[ 9.004010] sys_execve+0x26/0x30
[ 9.004274] do_int80_syscall_32+0x85/0x2c0
[ 9.004607] entry_INT80_32+0xf9/0xf9
[ 9.004901] EIP: 0x47f12053
[ 9.005131] Code: 90 90 90 90 90 90 90 57 53 8b 54 24 14 e8 00 00 00 00 5b 81 c3 b9 af 0c 00 8b 4c 24 10 8b 7c 24 0c 87 df b8 0b 00 00 00 cd 80 <87> fb 3d 00 f0 ff ff 77 03 5b 5f c3 8b 93 08 ff ff ff f7 d8 65 89
[ 9.006586] EAX: ffffffda EBX: bfb625c0 ECX: bfb6274c EDX: 08050070
[ 9.007076] ESI: 08050070 EDI: 47fdcff4 EBP: bfb624e4 ESP: bfb62494
[ 9.007562] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000212
[ 9.008095] Modules linked in:
[ 9.008385] ---[ end trace 407d7a31f83aed58 ]---
[ 9.008783] EIP: bad_uaccess_kernel_ds+0x13/0x20
# HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD
git bisect start 49193cb1b90670d2d029517a41e9dc124ffc976e bef459026b161fbc39d20dcba698ed0cfffbac38 --
git bisect good 691d149300b740e8e03a130ea630a7d383774c6d # 07:34 G 11 0 1 1 x86/fault: BUG() when KERNEL_DS uaccesses get page faults
git bisect good 9cf50775494dff2a520dc2b3833ac937949b4e8b # 07:46 G 11 0 0 0 x86/dumpstack: If addr_limit is non-default, display it
git bisect good 76b7d87e9f3a122b257c23e53d9fac9194ac3452 # 07:57 G 11 0 0 0 x86/uaccess: Add CONFIG_DEBUG_UACCESS to harden KERNEL_DS
# first bad commit: [49193cb1b90670d2d029517a41e9dc124ffc976e] [DEBUG] force CONFIG_DEBUG_UACCESS
git bisect good 76b7d87e9f3a122b257c23e53d9fac9194ac3452 # 07:59 G 31 0 3 3 x86/uaccess: Add CONFIG_DEBUG_UACCESS to harden KERNEL_DS
# extra tests on HEAD of luto/x86/uaccess
git bisect bad 49193cb1b90670d2d029517a41e9dc124ffc976e # 08:00 B 0 23 41 0 [DEBUG] force CONFIG_DEBUG_UACCESS
# extra tests on tree/branch luto/x86/uaccess
git bisect bad 49193cb1b90670d2d029517a41e9dc124ffc976e # 08:00 B 0 23 41 0 [DEBUG] force CONFIG_DEBUG_UACCESS
# extra tests with first bad commit reverted
git bisect good 3c6d091371c7b162302f172048c9fc4d058a5bcc # 08:21 G 11 0 1 2 Revert "[DEBUG] force CONFIG_DEBUG_UACCESS"
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
2 years, 11 months
3b745c8969 [ 71.340100] WARNING: CPU: 1 PID: 48 at kernel/rcu/rcutorture.c:1478 rcu_torture_stats_print
by kernel test robot
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit 3b745c8969c752601cb68c82a06735363563ab42
Author: Joel Fernandes (Google) <joel(a)joelfernandes.org>
AuthorDate: Sun Jun 10 16:45:44 2018 -0700
Commit: Paul E. McKenney <paulmck(a)linux.vnet.ibm.com>
CommitDate: Thu Jul 12 15:42:06 2018 -0700
rcutorture: Make boost test more robust
Currently, with RCU_BOOST disabled, I get no failures when forcing
rcutorture to test RCU boost priority inversion. The reason seems to be
that we don't check for failures if the callback never ran at all for
the duration of the boost-test loop.
Further, the 'rtb' and 'rtbf' counters seem to be used inconsistently.
'rtb' is incremented at the start of each test and 'rtbf' is incremented
per-cpu on each failure of call_rcu. So its possible 'rtbf' > 'rtb'.
To test the boost with rcutorture, I did following on a 4-CPU x86 machine:
modprobe rcutorture test_boost=2
sleep 20
rmmod rcutorture
With patch:
rtbf: 8 rtb: 12
Without patch:
rtbf: 0 rtb: 2
In summary this patch:
- Increments failed and total test counters once per boost-test.
- Checks for failure cases correctly.
Signed-off-by: Joel Fernandes (Google) <joel(a)joelfernandes.org>
Signed-off-by: Paul E. McKenney <paulmck(a)linux.vnet.ibm.com>
450efca718 rcutorture: Disable RT throttling for boost tests
3b745c8969 rcutorture: Make boost test more robust
c307aaf3eb Merge tag 'iommu-fixes-v4.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
9aa0219c6a Add linux-next specific files for 20180926
+---------------------------------------------------------------------------------------+------------+------------+------------+---------------+
| | 450efca718 | 3b745c8969 | c307aaf3eb | next-20180926 |
+---------------------------------------------------------------------------------------+------------+------------+------------+---------------+
| boot_successes | 182 | 0 | 37 | 0 |
| boot_failures | 13 | 16 | 34 | 16 |
| BUG:kernel_hang_in_test_stage | 8 | 7 | 4 | |
| BUG:workqueue_lockup-pool | 4 | 2 | 1 | |
| INFO:rcu_preempt_detected_stalls_on_CPUs/tasks | 1 | | | |
| EIP:lock_is_held_type | 5 | 4 | 3 | |
| EIP:___might_sleep | 4 | 2 | 3 | |
| INFO:rcu_preempt_self-detected_stall_on_CPU | 4 | 4 | 3 | |
| EIP:debug_lockdep_rcu_enabled | 1 | 2 | 2 | |
| INFO:rcu_sched_detected_stalls_on_CPUs/tasks | 1 | 2 | 1 | |
| Mem-Info | 1 | | | |
| invoked_oom-killer:gfp_mask=0x | 1 | | | |
| WARNING:at_kernel/rcu/rcutorture.c:#rcu_torture_stats_print | 0 | 7 | 29 | |
| EIP:rcu_torture_stats_print | 0 | 7 | 29 | |
| EIP:stutter_wait | 0 | 1 | | |
| EIP:__lock_is_held | 0 | 1 | | |
| EIP:queued_spin_lock_slowpath | 0 | 0 | 3 | |
| INFO:rcu_sched_self-detected_stall_on_CPU | 0 | 0 | 1 | |
| IP-Config:Auto-configuration_of_network_failed | 0 | 0 | 2 | |
| BUG:sleeping_function_called_from_invalid_context_at_security/apparmor/include/cred.h | 0 | 0 | 0 | 16 |
+---------------------------------------------------------------------------------------+------------+------------+------------+---------------+
[ 66.041535] init: tty2 main process ended, respawning
[ 66.073982] init: tty3 main process (1857) terminated with status 1
[ 66.075086] init: tty3 main process ended, respawning
[ 71.320525] rcu-torture: rtc: (ptrval) ver: 274 tfle: 0 rta: 275 rtaf: 0 rtf: 261 rtmbe: 0 rtbe: 0 rtbke: 0 rtbre: 0 rtbf: 10 rtb: 12 nt: 612 barrier: 0/0:0 cbflood: 11
[ 71.340077] rcu-torture: !!!
[ 71.340100] WARNING: CPU: 1 PID: 48 at kernel/rcu/rcutorture.c:1478 rcu_torture_stats_print+0x198/0x389
[ 71.342317] Modules linked in:
[ 71.342809] CPU: 1 PID: 48 Comm: rcu_torture_sta Tainted: G T 4.18.0-rc1-00089-g3b745c8 #1
[ 71.344269] EIP: rcu_torture_stats_print+0x198/0x389
[ 71.345037] Code: 3d 88 61 93 ca 00 75 0c 83 3d 84 61 93 ca 00 75 03 4b 7e 1a 68 ec 6c dc c9 68 0f 5f db c9 e8 59 60 ff ff f0 ff 05 94 61 93 ca <0f> 0b 58 5a 68 f1 6c dc c9 31 db e8 42 60 ff ff 5f ff 74 9d 9c 43
[ 71.348018] EAX: 00000004 EBX: 00000001 ECX: 00000001 EDX: 00000007
[ 71.348975] ESI: 00000105 EDI: ca110da0 EBP: d0a1ff84 ESP: d0a1ff08
[ 71.349935] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010202
[ 71.350977] CR0: 80050033 CR2: b7f22060 CR3: 176c09e0 CR4: 000006b0
[ 71.351933] DR0: 080d3000 DR1: b79d5800 DR2: 00000000 DR3: 00000000
[ 71.365922] DR6: ffff0ff0 DR7: 00000600
[ 71.366527] Call Trace:
[ 71.366935] rcu_torture_stats+0x38/0x59
[ 71.367555] kthread+0xef/0xf4
[ 71.368036] ? rcu_torture_stats_print+0x389/0x389
[ 71.368787] ? kthread_flush_work_fn+0xd/0xd
[ 71.369449] ret_from_fork+0x19/0x24
[ 71.370019] irq event stamp: 128
[ 71.370528] hardirqs last enabled at (127): [<c9681e11>] console_unlock+0x42f/0x46a
[ 71.371705] hardirqs last disabled at (128): [<c9bc998b>] common_exception+0x39/0x42
[ 71.372875] softirqs last enabled at (110): [<c9bca026>] __do_softirq+0x18e/0x1c4
[ 71.374029] softirqs last disabled at (79): [<c96131a8>] do_softirq_own_stack+0x1d/0x23
[ 71.375247] ---[ end trace bfc17b1da179232b ]---
[ 71.405196] Reader Pipe: 4555290 39 0 0 0 0 0 0 0 0 0
# HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD
git bisect start 6bf4ca7fbc85d80446ac01c0d1d77db4d91a6d84 v4.18 --
git bisect bad ee090756962c58b32af62b768ac7c58cc53af700 # 16:43 B 2 10 1 1 Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
git bisect bad c1c2ad82c772966d3cdb9a4852329fa2cf71853a # 16:54 B 2 3 0 0 Merge tag 'edac_for_4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
git bisect bad 10f3e23f07cb0c20f9bcb77a5b5a7eb2a1b2a2fe # 17:05 B 0 2 18 1 Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
git bisect bad 30de24c7dd21348b142ee977b687afc70b392af6 # 17:20 B 0 1 16 0 Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad de5d1b39ea0b38a9f4dfb08966042b7b91e2df30 # 17:32 B 0 1 16 0 Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad b99cdfdf0b1c077dcb24c0053d36d4ff5832224e # 17:47 B 1 2 1 1 Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect good 0ad6b38ab2cc00b886c34d945b6a30fdf5108c61 # 18:05 G 16 0 0 0 Merge branch 'core-debugobjects-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect good 400439275d9543286f9d3f2925c3156f888e6b18 # 18:16 G 16 0 0 0 Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect good d0daaeaf60143c02a2ef87f9f0703b63a0a7f8b3 # 18:26 G 16 0 0 0 Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect good c74859d1eb2d8578bdf6d78ba893e394085aba1a # 18:40 G 15 0 2 2 rcu: Make rcu_report_unblock_qs_rnp() warn on violated preconditions
git bisect good 9622179519c52ead944c3b6a07aed9c6db3659e2 # 18:54 G 16 0 2 2 rcu: Remove "inline" from rcu_perf_print_module_parms()
git bisect good c7cd161ecb2188c07ba9560ca82aee756575359f # 19:07 G 16 0 0 0 rcu: Assign higher prio to RCU threads if rcutorture is built-in
git bisect good 2397d072f76b552fc21cda19686d24a8066ced22 # 19:20 G 16 0 0 0 rcutorture: Handle extended read-side critical sections
git bisect bad 622be33fcbc93e9b672b99ed338369eb5e843ac3 # 19:31 B 1 1 1 1 rcutorture: Use monotonic timestamp for stall detection
git bisect good 450efca7182a516a12dfcc0311abfd242bde42b2 # 20:14 G 16 0 3 3 rcutorture: Disable RT throttling for boost tests
git bisect bad 3b745c8969c752601cb68c82a06735363563ab42 # 20:23 B 0 2 17 0 rcutorture: Make boost test more robust
# first bad commit: [3b745c8969c752601cb68c82a06735363563ab42] rcutorture: Make boost test more robust
git bisect good 450efca7182a516a12dfcc0311abfd242bde42b2 # 20:53 G 45 0 6 9 rcutorture: Disable RT throttling for boost tests
# extra tests with debug options
git bisect bad 3b745c8969c752601cb68c82a06735363563ab42 # 21:05 B 0 1 16 0 rcutorture: Make boost test more robust
# extra tests on HEAD of linux-devel/devel-spot-201809251433
git bisect bad 030b766240e3f8af8ca8cf9de250d492a894e638 # 21:05 B 1 9 0 4 0day head guard for 'devel-spot-201809251433'
# extra tests on tree/branch linus/master
git bisect bad c307aaf3eb47969105887e4e8991ec00960a7ce8 # 21:54 B 4 7 1 1 Merge tag 'iommu-fixes-v4.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
# extra tests with first bad commit reverted
git bisect good 7fb1a0a661cc3bd8653194d8dcd6680e43f1deee # 00:23 G 16 0 2 2 Revert "rcutorture: Make boost test more robust"
# extra tests on tree/branch linux-next/master
git bisect good 9aa0219c6a4cdb18c18e1b7b18202274ca802ccc # 00:34 G 16 0 16 16 Add linux-next specific files for 20180926
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
2 years, 11 months