c0a29787f8: BUG: kernel reboot-without-warning in early-boot stage, last printk: early console in setup code
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/jirislaby/linux.git devel
commit c0a29787f81dd5c52cfc57efa5bb50813b2a37c8
Author: Jiri Slaby <jslaby(a)suse.cz>
AuthorDate: Wed Mar 29 16:28:01 2017 +0200
Commit: Jiri Slaby <jslaby(a)suse.cz>
CommitDate: Wed May 24 13:36:03 2017 +0200
OBJTOOL_START_FUNC+END
Signed-off-by: Jiri Slaby <jslaby(a)suse.cz>
44c384b5a7 dw: more testing
c0a29787f8 OBJTOOL_START_FUNC+END
9460379522 objtool: generate dwarf for asm
+-----------------------------------------------------------------------------------------------+------------+------------+------------+
| | 44c384b5a7 | c0a29787f8 | 9460379522 |
+-----------------------------------------------------------------------------------------------+------------+------------+------------+
| boot_successes | 37 | 0 | 0 |
| boot_failures | 0 | 15 | 19 |
| BUG:kernel_reboot-without-warning_in_early-boot_stage,last_printk:early_console_in_setup_code | 0 | 15 | 19 |
+-----------------------------------------------------------------------------------------------+------------+------------+------------+
early console in setup code
# HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD
git bisect start 154e0f7f724739735bb67c805e065dd78aef5eb0 c696b4419edc5efa390c23ace4c811afbe8c618d --
git bisect bad 500d9cc994de06e8a2e126a13955607f3a97404d # 22:40 B 0 11 24 2 Merge 'linux-review/Anand-Jain/btrfs-btrfs_decompress_bio-could-accept-compressed_bio-instead/20170524-202327' into devel-catchup-201705242027
git bisect bad 488e0dac0ebcf13e14cb2d8bc57cb49af6bf295d # 23:04 B 0 11 26 4 Merge 'jirislaby/devel' into devel-catchup-201705242027
git bisect good 361f7c0f657999ca8a820bb121e9c564d41848da # 23:19 G 11 0 0 2 0day base guard for 'devel-catchup-201705242027'
git bisect good 2cc221de92501c3658482370b21c809361b3f3a2 # 23:35 G 11 0 0 0 Merge 'linux-review/Su-Yue/btrfs-tree-log-c-Wrong-printk-information-about-namelen/20170524-201736' into devel-catchup-201705242027
git bisect good 53e5d2751d0b253f46a9ffb8a42b7c0cc73bf7f3 # 23:54 G 11 0 0 0 s390: scsi, use setup_timer instead of init_timer
git bisect good 0b5b44a8210482081771f25d99bf3f7d47d1e571 # 00:21 G 11 0 0 0 x86_32: assembly, change all ENTRY to SYM_FUNC_START
git bisect good 0be19d0804172f1cabed143a97c5074f5c5c18c0 # 00:42 G 11 0 0 2 dw: irq annotation
git bisect bad 6278d88c059fcfe62a4a2e39c0af89ee414e2d9c # 01:08 B 0 11 26 4 objtool: change 0x1b -> constant names
git bisect bad dff1c0f6ccac7eb986a61307b6681dc896180331 # 01:21 B 0 11 22 0 thunk: annotate manually for comparison
git bisect bad c0a29787f81dd5c52cfc57efa5bb50813b2a37c8 # 01:31 B 0 1 12 0 OBJTOOL_START_FUNC+END
git bisect good 44c384b5a7e19240cbfd4a14afb5f3afdea1fbdb # 01:51 G 10 0 0 0 dw: more testing
# first bad commit: [c0a29787f81dd5c52cfc57efa5bb50813b2a37c8] OBJTOOL_START_FUNC+END
git bisect good 44c384b5a7e19240cbfd4a14afb5f3afdea1fbdb # 01:56 G 32 0 0 0 dw: more testing
# extra tests with CONFIG_DEBUG_INFO_REDUCED
git bisect bad c0a29787f81dd5c52cfc57efa5bb50813b2a37c8 # 02:29 B 0 11 22 0 OBJTOOL_START_FUNC+END
# extra tests on HEAD of linux-devel/devel-catchup-201705242027
git bisect bad 154e0f7f724739735bb67c805e065dd78aef5eb0 # 02:30 B 0 33 47 0 0day head guard for 'devel-catchup-201705242027'
# extra tests on tree/branch jirislaby/devel
git bisect bad 946037952233eac7877355e198ee1d8a347414f0 # 02:53 B 0 11 30 8 objtool: generate dwarf for asm
# extra tests with first bad commit reverted
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
3 years, 8 months
[lkp-robot] [NFS] 14d1bbb0ca: BUG:scheduling_while_atomic
by kernel test robot
FYI, we noticed the following commit:
commit: 14d1bbb0ca425c4fdd9a38eaac346c028661b752 ("NFS: Create a common nfs4_match_client() function")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: boot
on test machine: qemu-system-x86_64 -enable-kvm -cpu host -smp 2 -m 4G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+-------------------------------+------------+------------+
| | 5b6d3ff605 | 14d1bbb0ca |
+-------------------------------+------------+------------+
| boot_successes | 469 | 470 |
| boot_failures | 0 | 31 |
| BUG:scheduling_while_atomic | 0 | 31 |
| BUG:spinlock_recursion_on_CPU | 0 | 30 |
+-------------------------------+------------+------------+
[ 299.158991] BUG: scheduling while atomic: mount.nfs/9387/0x00000002
[ 299.169587] 2 locks held by mount.nfs/9387:
[ 299.176165] #0: (nfs_clid_init_mutex){......}, at: [<ffffffff8130cc92>] nfs4_discover_server_trunking+0x47/0x1fc
[ 299.201802] #1: (&(&nn->nfs_client_lock)->rlock){......}, at: [<ffffffff813125fa>] nfs40_walk_client_list+0x2e9/0x338
[ 299.221979] CPU: 0 PID: 9387 Comm: mount.nfs Not tainted 4.11.0-rc7-00021-g14d1bbb #45
[ 299.235584] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[ 299.251176] Call Trace:
[ 299.255192] dump_stack+0x61/0x7e
[ 299.260416] __schedule_bug+0x65/0x74
[ 299.266208] __schedule+0x5d/0x87c
[ 299.271883] schedule+0x89/0x9a
[ 299.276937] schedule_timeout+0x232/0x289
[ 299.283223] ? detach_if_pending+0x10b/0x10b
[ 299.289935] schedule_timeout_uninterruptible+0x2a/0x2c
[ 299.298266] ? put_rpccred+0x3e/0x115
[ 299.304327] ? schedule_timeout_uninterruptible+0x2a/0x2c
[ 299.312851] msleep+0x1e/0x22
[ 299.317612] nfs4_discover_server_trunking+0x102/0x1fc
[ 299.325644] nfs4_init_client+0x13f/0x194
[ 299.331870] ? kvm_clock_read+0x25/0x35
[ 299.338022] ? kvm_sched_clock_read+0x9/0x12
[ 299.344767] ? sched_clock+0x9/0xd
[ 299.350051] nfs_get_client+0x2a8/0x2bd
[ 299.356243] nfs4_set_client+0x78/0x9e
[ 299.362137] nfs4_create_server+0xc4/0x228
[ 299.370558] nfs4_remote_mount+0x2f/0x55
[ 299.376973] mount_fs+0x14/0x8d
[ 299.382182] vfs_kern_mount+0x69/0x136
[ 299.388670] nfs_do_root_mount+0x8f/0xab
[ 299.395407] nfs4_try_mount+0x37/0x4e
[ 299.401572] nfs_fs_mount+0x754/0x785
[ 299.407819] ? nfs_get_option_ul+0x46/0x46
[ 299.414593] ? nfs_destroy_inode+0x1e/0x1e
[ 299.420431] mount_fs+0x14/0x8d
[ 299.425028] ? mount_fs+0x14/0x8d
[ 299.430313] vfs_kern_mount+0x69/0x136
[ 299.436242] do_mount+0x89a/0xb14
[ 299.441746] SyS_mount+0x77/0x9f
[ 299.447161] entry_SYSCALL_64_fastpath+0x1e/0xb2
[ 299.454715] RIP: 0033:0x7f7c3cdd798a
[ 299.460124] RSP: 002b:00007ffd016026d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
[ 299.470919] RAX: ffffffffffffffda RBX: 000000000061c650 RCX: 00007f7c3cdd798a
[ 299.481122] RDX: 000000000061bf30 RSI: 000000000061bf10 RDI: 000000000061bef0
[ 299.491335] RBP: 00007ffd01602730 R08: 000000000061c890 R09: 000000000061c890
[ 299.500242] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
[ 299.511452] R13: 00007ffd01602690 R14: 00007ffd01602724 R15: 0000000000000003
[ 300.174710] BUG: spinlock recursion on CPU#0, mount.nfs/9387
[ 300.184760] lock: 0xffff88010f38e158, .magic: dead4ead, .owner: mount.nfs/9387, .owner_cpu: 0
[ 300.227729] CPU: 0 PID: 9387 Comm: mount.nfs Tainted: G W 4.11.0-rc7-00021-g14d1bbb #45
[ 300.260978] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[ 300.294748] Call Trace:
[ 300.307512] dump_stack+0x61/0x7e
[ 300.317659] spin_bug+0x9d/0xa3
[ 300.327224] do_raw_spin_lock+0x40/0x8e
[ 300.342811] _raw_spin_lock+0x55/0x6a
[ 300.351000] nfs40_walk_client_list+0xaf/0x338
[ 300.369114] nfs40_discover_server_trunking+0xe4/0x106
[ 300.388266] nfs4_discover_server_trunking+0x6a/0x1fc
[ 300.396142] nfs4_init_client+0x13f/0x194
[ 300.413645] ? kvm_clock_read+0x25/0x35
[ 300.430847] ? kvm_sched_clock_read+0x9/0x12
[ 300.437500] ? sched_clock+0x9/0xd
[ 300.442904] nfs_get_client+0x2a8/0x2bd
[ 300.448779] nfs4_set_client+0x78/0x9e
[ 300.454766] nfs4_create_server+0xc4/0x228
[ 300.461212] nfs4_remote_mount+0x2f/0x55
[ 300.467248] mount_fs+0x14/0x8d
[ 300.472074] vfs_kern_mount+0x69/0x136
[ 300.478332] nfs_do_root_mount+0x8f/0xab
[ 300.484580] nfs4_try_mount+0x37/0x4e
[ 300.490157] nfs_fs_mount+0x754/0x785
[ 300.495958] ? nfs_get_option_ul+0x46/0x46
[ 300.502374] ? nfs_destroy_inode+0x1e/0x1e
[ 300.508985] mount_fs+0x14/0x8d
[ 300.513818] ? mount_fs+0x14/0x8d
[ 300.519121] vfs_kern_mount+0x69/0x136
[ 300.525093] do_mount+0x89a/0xb14
[ 300.530210] SyS_mount+0x77/0x9f
[ 300.535195] entry_SYSCALL_64_fastpath+0x1e/0xb2
[ 300.542489] RIP: 0033:0x7f7c3cdd798a
[ 300.548232] RSP: 002b:00007ffd016026d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
[ 300.581125] RAX: ffffffffffffffda RBX: 000000000061c650 RCX: 00007f7c3cdd798a
[ 300.591877] RDX: 000000000061bf30 RSI: 000000000061bf10 RDI: 000000000061bef0
[ 300.622505] RBP: 00007ffd01602730 R08: 000000000061c890 R09: 000000000061c890
[ 300.632097] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
[ 300.642729] R13: 00007ffd01602690 R14: 00007ffd01602724 R15: 0000000000000003
Elapsed time: 320
initrds=(
/osimage/debian/debian-x86_64-2016-08-31.cgz
/lkp/scheduled/vm-lkp-wsx03-4G-6/boot-1-debian-x86_64-2016-08-31.cgz-14d1bbb0ca425c4fdd9a38eaac346c028661b752-20170518-14972-19ln527-189.cgz
/lkp/lkp/lkp-x86_64.cgz
/osimage/deps/debian-x86_64-2016-08-31.cgz/lkp_2017-05-01.cgz
/osimage/deps/debian-x86_64-2016-08-31.cgz/rsync-rootfs_2016-11-15.cgz
/osimage/deps/debian-x86_64-2016-08-31.cgz/run-ipconfig_2016-11-15.cgz
)
cat "${initrds[@]}" > /fs/sdc1/initrd-vm-lkp-wsx03-4G-6
kvm=(
qemu-system-x86_64
-enable-kvm
-cpu host
-kernel /pkg/linux/x86_64-acpi-redef/gcc-6/14d1bbb0ca425c4fdd9a38eaac346c028661b752/vmlinuz-4.11.0-rc7-00021-g14d1bbb
-initrd /fs/sdc1/initrd-vm-lkp-wsx03-4G-6
-m 4096
-smp 2
-device e1000,netdev=net0
-netdev user,id=net0,hostfwd=tcp::23665-:22
-boot order=nc
-no-reboot
-watchdog i6300esb
-watchdog-action debug
-rtc base=localtime
-drive file=/fs/sdc1/disk0-vm-lkp-wsx03-4G-6,media=disk,if=virtio
-drive file=/fs/sdc1/disk1-vm-lkp-wsx03-4G-6,media=disk,if=virtio
-pidfile /dev/shm/kboot/pid-vm-lkp-wsx03-4G-6
-serial file:/dev/shm/kboot/vm-lkp-wsx03-4G-6/serial
-serial file:/dev/shm/kboot/vm-lkp-wsx03-4G-6/kmsg
-daemonize
-display none
-monitor null
)
append=(
ip=::::vm-lkp-wsx03-4G-6::dhcp
root=/dev/ram0
user=lkp
job=/lkp/scheduled/vm-lkp-wsx03-4G-6/boot-1-debian-x86_64-2016-08-31.cgz-14d1bbb0ca425c4fdd9a38eaac346c028661b752-20170518-14972-19ln527-189.yaml
ARCH=x86_64
kconfig=x86_64-acpi-redef
branch=linux-devel/devel-spot-201705140518
commit=14d1bbb0ca425c4fdd9a38eaac346c028661b752
BOOT_IMAGE=/pkg/linux/x86_64-acpi-redef/gcc-6/14d1bbb0ca425c4fdd9a38eaac346c028661b752/vmlinuz-4.11.0-rc7-00021-g14d1bbb
max_uptime=600
RESULT_ROOT=/result/boot/1/vm-lkp-wsx03-4G/debian-x86_64-2016-08-31.cgz/x86_64-acpi-redef/gcc-6/14d1bbb0ca425c4fdd9a38eaac346c028661b752/189
LKP_SERVER=inn
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
net.ifnames=0
printk.devkmsg=on
panic=-1
softlockup_panic=1
nmi_watchdog=panic
To reproduce:
git clone https://github.com/01org/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
Xiaolong
3 years, 8 months
[lkp-robot] [sched/core] 1c3c5eab17: BUG:using_smp_processor_id()in_preemptible
by kernel test robot
FYI, we noticed the following commit:
commit: 1c3c5eab171590f86edd8d31389d61dd1efe3037 ("sched/core: Enable might_sleep() and smp_processor_id() checks early")
https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git sched/core
in testcase: boot
on test machine: qemu-system-x86_64 -enable-kvm -smp 2 -m 512M
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+------------------------------------------------------------------+------------+------------+
| | 69a78ff226 | 1c3c5eab17 |
+------------------------------------------------------------------+------------+------------+
| boot_successes | 6 | 0 |
| boot_failures | 2 | 8 |
| invoked_oom-killer:gfp_mask=0x | 2 | |
| Mem-Info | 2 | |
| Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 2 | |
| BUG:using_smp_processor_id()in_preemptible | 0 | 8 |
+------------------------------------------------------------------+------------+------------+
[ 15.697784] BUG: using smp_processor_id() in preemptible [00000000] code: swapper/0/1
[ 15.698793] caller is debug_smp_processor_id+0x1c/0x1e
[ 15.699461] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.12.0-rc2-00108-g1c3c5ea #1
[ 15.700431] Call Trace:
[ 15.700530] dump_stack+0x110/0x192
[ 15.700530] check_preemption_disabled+0x10c/0x128
[ 15.700530] ? set_debug_rodata+0x25/0x25
[ 15.700530] debug_smp_processor_id+0x1c/0x1e
[ 15.700530] sched_clock_init_late+0x27/0x87
[ 15.700530] ? sched_init+0x4c6/0x4c6
[ 15.700530] do_one_initcall+0xa3/0x1a7
[ 15.700530] ? set_debug_rodata+0x25/0x25
[ 15.700530] kernel_init_freeable+0x25e/0x304
[ 15.700530] ? rest_init+0x29a/0x29a
[ 15.700530] kernel_init+0x14/0x147
[ 15.700530] ? rest_init+0x29a/0x29a
[ 15.700530] ret_from_fork+0x31/0x40
[ 15.707460] sched_clock: Marking stable (15707446101, 0)->(16254936915, -547490814)
[ 15.709183] Loading compiled-in X.509 certificates
[ 15.711197] Key type encrypted registered
[ 15.791159] Unregister pv shared memory for cpu 0
[ 15.794097] CPU 0 is now offline
[ 15.801534] Freeing unused kernel memory: 1232K
[ 15.802178] Write protecting the kernel read-only data: 12288k
[ 15.804954] Freeing unused kernel memory: 832K
[ 15.824888] Freeing unused kernel memory: 1236K
[ 15.836054] random: init: uninitialized urandom read (12 bytes read)
[ 15.947972] random: mountall: uninitialized urandom read (12 bytes read)
[ 15.953829] random: trinity: uninitialized urandom read (4 bytes read)
[ 15.994557] init: Failed to create pty - disabling logging for job
[ 15.995553] init: Temporary process spawn error: No such file or directory
[ 16.016425] init: Failed to create pty - disabling logging for job
[ 16.017422] init: Temporary process spawn error: No such file or directory
[ 16.065743] init: Failed to create pty - disabling logging for job
[ 16.066743] init: Temporary process spawn error: No such file or directory
[ 16.072872] init: Failed to create pty - disabling logging for job
[ 16.073847] init: Temporary process spawn error: No such file or directory
[ 16.166147] init: Failed to create pty - disabling logging for job
[ 16.167149] init: Temporary process spawn error: No such file or directory
[ 16.176152] init: Failed to create pty - disabling logging for job
[ 16.177131] init: Temporary process spawn error: No such file or directory
[ 16.186596] init: Failed to create pty - disabling logging for job
[ 16.187565] init: Temporary process spawn error: No such file or directory
[ 16.198251] udevd[215]: starting version 175
[ 16.211652] init: Failed to create pty - disabling logging for job
[ 16.212630] init: Temporary process spawn error: No such file or directory
[ 16.222026] init: Failed to create pty - disabling logging for job
[ 16.223003] init: Temporary process spawn error: No such file or directory
[ 16.239918] init: Failed to create pty - disabling logging for job
[ 16.241031] init: Temporary process spawn error: No such file or directory
[ 16.285515] init: Failed to create pty - disabling logging for job
[ 16.286509] init: Temporary process spawn error: No such file or directory
[ 16.292670] init: Failed to create pty - disabling logging for job
[ 16.293641] init: Temporary process spawn error: No such file or directory
To reproduce:
git clone https://github.com/01org/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
Xiaolong
3 years, 8 months
[lkp-robot] [drm/i915] 73cc0b9aa9: [No primary change] perf-stat.cpu-migrations -91%
by kernel test robot
Greeting,
There is no primary kpi change in this test, below is the data collected through multiple monitors running background just for your information.
commit: 73cc0b9aa9afa5ba65d92e46ded61d29430d72a4 ("drm/i915: Do not sync RCU during shrinking")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
in testcase: vm-scalability
on test machine: 4 threads Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz with 8G memory
with following parameters:
runtime: 300s
test: mmap-xread-rand-mt
cpufreq_governor: performance
test-description: The motivation behind this suite is to exercise functions and regions of the mm/ of the Linux kernel which are of interest to us.
test-url: https://git.kernel.org/cgit/linux/kernel/git/wfg/vm-scalability.git/
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/01org/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
testcase/path_params/tbox_group/run: vm-scalability/300s-mmap-xread-rand-mt-performance/lkp-ivb-d02
a0c1fe219080d6b2 73cc0b9aa9afa5ba65d92e46de
---------------- --------------------------
%stddev change %stddev
\ | \
743 4% 774 vm-scalability.time.system_time
253 4% 264 vm-scalability.time.percent_of_cpu_this_job_got
1.542e+08 3% 1.592e+08 vm-scalability.time.major_page_faults
4102830 -22% 3185042 ± 26% vm-scalability.time.involuntary_context_switches
362155 ± 11% -94% 20840 ± 14% vm-scalability.time.voluntary_context_switches
95.22 3% 98.19 turbostat.%Busy
3135 3% 3233 turbostat.Avg_MHz
67194 -4% 64183 vmstat.system.in
40221 -9% 36600 vmstat.system.cs
1.542e+08 3% 1.592e+08 perf-stat.major-faults
1.545e+08 3% 1.595e+08 perf-stat.page-faults
3.803e+12 3% 3.924e+12 perf-stat.cpu-cycles
5.181e+11 3% 5.337e+11 perf-stat.dTLB-loads
3.499e+11 3.589e+11 perf-stat.dTLB-stores
3.832e+11 3.922e+11 perf-stat.branch-instructions
2.02e+12 2.067e+12 perf-stat.instructions
1.79e+10 1.819e+10 perf-stat.cache-misses
305613 301162 perf-stat.minor-faults
12341779 -9% 11214192 perf-stat.context-switches
166831 ± 8% -91% 14870 ± 4% perf-stat.cpu-migrations
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
Thanks,
Xiaolong
3 years, 8 months
[lkp-robot] [fs] 563f40019d: blogbench.write_score 9.3% improvement
by kernel test robot
Greeting,
FYI, we noticed a 9.3% improvement of blogbench.write_score due to commit:
commit: 563f40019d16e5299e9edd3eac37846760637076 ("fs: don't set *REFERENCED on single use objects")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: blogbench
on test machine: 16 threads Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz with 8G memory
with following parameters:
disk: 1SSD
fs: xfs
cpufreq_governor: performance
test-description: Blogbench is a portable filesystem benchmark that tries to reproduce the load of a real-world busy file server.
test-url: https://www.pureftpd.org/project/blogbench
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/01org/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
testcase/path_params/tbox_group/run: blogbench/1SSD-xfs-performance/lkp-bdw-de1
9280cdd6fe5b8287 563f40019d16e5299e9edd3eac
---------------- --------------------------
%stddev change %stddev
\ | \
11398 9% 12455 blogbench.write_score
81137868 8% 87603438 blogbench.time.file_system_outputs
1123 1104 blogbench.time.system_time
394 387 blogbench.time.percent_of_cpu_this_job_got
3714063 -5% 3528673 blogbench.time.voluntary_context_switches
91718162 -8% 83960562 blogbench.time.file_system_inputs
14.17 14.04 turbostat.RAMWatt
735 725 turbostat.Avg_MHz
29.66 29.25 turbostat.%Busy
152260 8% 164431 vmstat.io.bo
153939 -9% 140474 vmstat.io.bi
26286 25693 vmstat.system.in
40304 39141 vmstat.system.cs
5705 8% 6155 iostat.sda.wrqm/s
170412 7% 182615 iostat.sda.wkB/s
129 7% 138 iostat.sda.avgqu-sz
2017 5% 2127 iostat.sda.w/s
153933 -9% 140471 iostat.sda.rkB/s
7363 -9% 6700 iostat.sda.r/s
0.50 0.51 perf-stat.ipc
3.455e+12 3.409e+12 perf-stat.cpu-cycles
1.723e+09 1.699e+09 perf-stat.branch-misses
0.54 0.53 perf-stat.branch-miss-rate%
8.308e+10 8.136e+10 perf-stat.cache-references
8.308e+10 8.136e+10 perf-stat.cache-misses
12211426 11868063 perf-stat.context-switches
2.077e+08 -3% 2.011e+08 perf-stat.iTLB-loads
26482082 -3% 25630112 perf-stat.dTLB-store-misses
0.01 -3% 0.01 perf-stat.dTLB-store-miss-rate%
2.673e+08 -5% 2.55e+08 perf-stat.dTLB-load-misses
0.05 -5% 0.05 perf-stat.dTLB-load-miss-rate%
blogbench.time.file_system_inputs
9.4e+07 ++----------------------------------------------------------------+
| **.*. * *.|
9.2e+07 ++ *.* *. * + .*.**.*. *. *.*.*. *. *.*. : *
* * : **.*. + * * *.*. : * *.*. : *.: |
9e+07 ++ + : * * * * |
| * |
8.8e+07 ++ |
| |
8.6e+07 ++ O O |
| O O O O O |
8.4e+07 ++ O |
| OO O O O O O O |
8.2e+07 ++ OO O |
O O |
8e+07 ++----------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
Thanks,
Xiaolong
3 years, 8 months
[lkp-robot] [rcu] c654f4e816: will-it-scale.per_thread_ops -5.8% regression
by kernel test robot
Greeting,
FYI, we noticed a -5.8% regression of will-it-scale.per_thread_ops due to commit:
commit: c654f4e8165061a92787f89f1ad3f3bda6145cbf ("rcu: Eliminate NOCBs CPU-state Kconfig options")
https://git.kernel.org/cgit/linux/kernel/git/paulmck/linux-rcu.git dev.2017.05.16b
in testcase: will-it-scale
on test machine: 16 threads Intel(R) Atom(R) CPU 3958 @ 2.00GHz with 64G memory
with following parameters:
nr_task: 100%
mode: thread
test: open2
cpufreq_governor: performance
test-description: Will It Scale takes a testcase and runs it from 1 through to n parallel copies to see if the testcase will scale. It builds both a process and threads based test in order to see any differences between the two.
test-url: https://github.com/antonblanchard/will-it-scale
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/01org/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
testcase/path_params/tbox_group/run: will-it-scale/100%-thread-open2-performance/lkp-denverton2
c69340bed57c7834 c654f4e8165061a92787f89f1a
---------------- --------------------------
88481 -6% 83356 will-it-scale.per_thread_ops
1473 7% 1579 will-it-scale.time.percent_of_cpu_this_job_got
4352 7% 4670 will-it-scale.time.system_time
29405 -5% 28035 vmstat.system.in
28907 -8% 26689 vmstat.system.cs
:4 100% 4:4 kmsg.IP-Config:Reopening_network_devices
7161 ± 68% -4e+03 2774 ± 13% latency_stats.avg.max
0.59 0.60 perf-stat.branch-miss-rate%
0.31 29% 0.40 perf-stat.iTLB-load-miss-rate%
8.777e+09 22% 1.073e+10 perf-stat.iTLB-load-misses
0.30 -6% 0.28 perf-stat.ipc
2.847e+12 -6% 2.687e+12 perf-stat.iTLB-loads
8752041 -8% 8079422 perf-stat.context-switches
21.46 13% 24.31 perf-stat.cache-miss-rate%
8.921e+10 -13% 7.781e+10 perf-stat.cache-references
2.847e+12 -6% 2.686e+12 perf-stat.instructions
5.517e+11 -6% 5.186e+11 perf-stat.branch-instructions
324 -23% 250 perf-stat.instructions-per-iTLB-miss
3.261e+09 -4% 3.13e+09 perf-stat.branch-misses
will-it-scale.time.system_time
4700 ++----------O--O-----------------------------------------------------+
O OO O OO O O O OO O OO O OO O OO O O O O |
4650 ++ O |
4600 ++ |
| |
4550 ++ |
| |
4500 ++ |
| |
4450 ++ * *. * |
4400 *+ +: * : *. + : |
| **.* :.*. .*.**.*.* * : *.*.* **.* *.*. * * |
4350 ++ * **.* *.*.* + : *.* + .* + .**.*
| * * * |
4300 ++-------------------------------------------------------------------+
will-it-scale.time.percent_of_cpu_this_job_got
1600 ++-------------------------------------------------------------------+
| |
1580 O+OO O OO O OO O O OO O OO O OO O OO O O O O |
| O |
1560 ++ |
| |
1540 ++ |
| |
1520 ++ |
| |
1500 ++ .* *. .* |
*. .* : .*. * .* *. .* *. * |
1480 ++** *.*.* .*.*.** **. .**. + *.* ** *. .**. .* + *.*
| * * * * * *.* |
1460 ++-------------------------------------------------------------------+
[*] bisect-good sample
[O] bisect-bad sample
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
Thanks,
Xiaolong
3 years, 8 months
[lkp-robot] [sched, rcu] e14db18536: [No primary change] will-it-scale.time.involuntary_context_switches +297%
by kernel test robot
Greeting,
There is no primary kpi change in this test, below is the data collected through multiple monitors running background just for your information.
commit: e14db185366f7ad8cceed09493155eea5d4edbc9 ("sched,rcu: Make cond_resched() provide RCU quiescent state")
https://git.kernel.org/cgit/linux/kernel/git/paulmck/linux-rcu.git dev.2017.05.16b
in testcase: will-it-scale
on test machine: 256 threads Phi with 96G memory
with following parameters:
nr_task: 100%
mode: thread
test: unlink2
cpufreq_governor: performance
test-description: Will It Scale takes a testcase and runs it from 1 through to n parallel copies to see if the testcase will scale. It builds both a process and threads based test in order to see any differences between the two.
test-url: https://github.com/antonblanchard/will-it-scale
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/01org/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
testcase/path_params/tbox_group/run: will-it-scale/100%-thread-unlink2-performance/lkp-knl-f1
28e5a11c1160e48e e14db185366f7ad8cceed09493
---------------- --------------------------
%stddev change %stddev
\ | \
240143 297% 954077 ± 4% will-it-scale.time.involuntary_context_switches
709559 -7% 659422 interrupts.CAL:Function_call_interrupts
12730 ± 4% 34% 17035 ± 3% vmstat.system.cs
3847252 ± 4% 33% 5131682 ± 3% perf-stat.context-switches
1.009e+10 3% 1.04e+10 perf-stat.cache-misses
1.258e+10 6% 1.331e+10 perf-stat.branch-misses
0.34 6% 0.37 perf-stat.branch-miss-rate%
24.65 25.30 perf-stat.cache-miss-rate%
will-it-scale.time.involuntary_context_switches
1.2e+06 ++----------------------------------------------------------------+
1.1e+06 ++ O O O |
O O O O O O O O O O O O O |
1e+06 ++ O O O O O O O O |
900000 ++ O O O O O O O O O
| |
800000 ++ |
700000 ++ |
600000 ++ |
| |
500000 ++ |
400000 ++ |
| |
300000 ++*.*.*. .*.*.*..*.*.*.*.*.*.*. .*.*.*. .*.*.*.. .*.*.*.*.*.* |
200000 *+------*----------------------*-------*-*--------*---------------+
[*] bisect-good sample
[O] bisect-bad sample
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
Thanks,
Xiaolong
3 years, 8 months
[lkp-robot] 0e82c3caae: will-it-scale.per_thread_ops +14% improvement
by kernel test robot
Greeting,
We noticed a +14% improvement of will-it-scale.per_thread_ops due to commit:
commit: 0e82c3caae39a0e05884c556c8847a72bf65cfec ("Debug code enabling irq next prediction")
http://git.linaro.org/people/daniel.lezcano/linux sched/idle
in testcase: will-it-scale
on test machine: 256 threads Phi with 96G memory
with following parameters:
nr_task: 100%
mode: thread
test: unlink2
cpufreq_governor: performance
test-description: Will It Scale takes a testcase and runs it from 1 through to n parallel copies to see if the testcase will scale. It builds both a process and threads based test in order to see any differences between the two.
test-url: https://github.com/antonblanchard/will-it-scale
Details are as below:
-------------------------------------------------------------------------------------------------->
To reproduce:
git clone https://github.com/01org/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
testcase/path_params/tbox_group/run: will-it-scale/100%-thread-unlink2-performance/lkp-knl-f1
979a7b878fefea6b 0e82c3caae39a0e05884c556c8
---------------- --------------------------
%stddev change %stddev
\ | \
528 14% 604 will-it-scale.per_thread_ops
72406 4% 75177 vmstat.system.in
8.524e+09 15% 9.762e+09 perf-stat.iTLB-load-misses
0.09 11% 0.10 perf-stat.iTLB-load-miss-rate%
1.335e+10 9% 1.462e+10 perf-stat.branch-misses
0.36 7% 0.39 perf-stat.branch-miss-rate%
3.975e+10 7% 4.249e+10 perf-stat.cache-references
1.003e+10 6% 1.063e+10 perf-stat.cache-misses
9.393e+12 4% 9.729e+12 perf-stat.iTLB-loads
0.09 0.09 perf-stat.ipc
9.433e+12 9.676e+12 perf-stat.instructions
3.669e+12 3.737e+12 perf-stat.branch-instructions
19798 19487 perf-stat.cpu-migrations
1106 -10% 991 perf-stat.instructions-per-iTLB-miss
will-it-scale.per_thread_ops
660 ++--------------------------------------------------------------------+
| O |
640 ++ O O O |
| O O O |
620 ++ O |
| O O O O |
600 ++ O O O O O O O O O O O O O
| O |
580 ++ |
| |
560 ++O O |
O O O |
540 ++ .* |
*.*..*.*. .*.*..*.*.*..*.*.*..*. .*..*.*.*.. .*.*..*. .*. |
520 ++-------*--*----------------------*-----------*--------*-------------+
[*] bisect-good sample
[O] bisect-bad sample
Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.
Thanks,
Xiaolong
3 years, 8 months
[[media] sir_ir] 592ddc9f7d: BUG: unable to handle kernel NULL pointer dereference at 00000000000005b8
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/next/linux-next.git master
commit 592ddc9f7db36c778d3bf9ffdfd93d8d5d548e48
Author: Sean Young <sean(a)mess.org>
AuthorDate: Tue May 16 04:56:14 2017 -0300
Commit: Mauro Carvalho Chehab <mchehab(a)s-opensource.com>
CommitDate: Thu May 18 06:16:41 2017 -0300
[media] sir_ir: infinite loop in interrupt handler
Since this driver does no detection of hardware, it might be used with
a non-sir port. Escape out if we are spinning.
Reported-by: kbuild test robot <fengguang.wu(a)intel.com>
Signed-off-by: Sean Young <sean(a)mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab(a)s-opensource.com>
dd8245f445 [media] atomisp: don't treat warnings as errors
592ddc9f7d [media] sir_ir: infinite loop in interrupt handler
f482797714 Add linux-next specific files for 20170523
+------------------------------------------------------------------+------------+------------+---------------+
| | dd8245f445 | 592ddc9f7d | next-20170523 |
+------------------------------------------------------------------+------------+------------+---------------+
| boot_successes | 33 | 0 | 0 |
| boot_failures | 2 | 15 | 2 |
| invoked_oom-killer:gfp_mask=0x | 2 | | |
| Mem-Info | 2 | | |
| Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 2 | | |
| BUG:unable_to_handle_kernel | 0 | 14 | 2 |
| Oops:#[##] | 0 | 14 | 2 |
| Kernel_panic-not_syncing:Fatal_exception_in_interrupt | 0 | 15 | 2 |
| general_protection_fault:#[##] | 0 | 1 | |
+------------------------------------------------------------------+------------+------------+---------------+
[ 2.947120] page_owner is disabled
[ 2.949932] Key type encrypted registered
[ 2.949932] Key type encrypted registered
[ 2.956911] platform sir_ir.0: Trapped in interrupt
[ 2.956911] platform sir_ir.0: Trapped in interrupt
[ 2.958377] BUG: unable to handle kernel NULL pointer dereference at 00000000000005b8
[ 2.958377] BUG: unable to handle kernel NULL pointer dereference at 00000000000005b8
[ 2.960689] IP: __lock_acquire+0xdb/0x1280
[ 2.960689] IP: __lock_acquire+0xdb/0x1280
[ 2.961900] PGD 0
[ 2.961900] PGD 0
[ 2.961903] P4D 0
[ 2.961903] P4D 0
[ 2.962511]
[ 2.962511]
[ 2.963568] Oops: 0000 [#1] PREEMPT
[ 2.963568] Oops: 0000 [#1] PREEMPT
[ 2.964602] Modules linked in:
[ 2.964602] Modules linked in:
[ 2.965515] CPU: 0 PID: 1 Comm: swapper Not tainted 4.12.0-rc1-00003-g592ddc9 #1
[ 2.965515] CPU: 0 PID: 1 Comm: swapper Not tainted 4.12.0-rc1-00003-g592ddc9 #1
[ 2.967675] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[ 2.967675] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[ 2.970647] task: ffff99608f33e540 task.stack: ffff99608f334000
[ 2.970647] task: ffff99608f33e540 task.stack: ffff99608f334000
[ 2.972382] RIP: 0010:__lock_acquire+0xdb/0x1280
[ 2.972382] RIP: 0010:__lock_acquire+0xdb/0x1280
[ 2.973746] RSP: 0000:ffffffffacc35cb0 EFLAGS: 00010002
[ 2.973746] RSP: 0000:ffffffffacc35cb0 EFLAGS: 00010002
[ 2.975277] RAX: 0000000000000046 RBX: 0000000000000001 RCX: 0000000000000000
[ 2.975277] RAX: 0000000000000046 RBX: 0000000000000001 RCX: 0000000000000000
[ 2.977365] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 2.977365] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 2.979460] RBP: ffffffffacc35d50 R08: 0000000000000001 R09: 0000000000000001
[ 2.979460] RBP: ffffffffacc35d50 R08: 0000000000000001 R09: 0000000000000001
[ 2.981553] R10: 0000000000000000 R11: ffffffffabcc9fd3 R12: 00000000000005b8
[ 2.981553] R10: 0000000000000000 R11: ffffffffabcc9fd3 R12: 00000000000005b8
[ 2.983641] R13: ffff99608f33e540 R14: 0000000000000001 R15: 0000000000000000
[ 2.983641] R13: ffff99608f33e540 R14: 0000000000000001 R15: 0000000000000000
[ 2.985726] FS: 0000000000000000(0000) GS:ffffffffacc32000(0000) knlGS:0000000000000000
[ 2.985726] FS: 0000000000000000(0000) GS:ffffffffacc32000(0000) knlGS:0000000000000000
[ 2.988089] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.988089] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.989776] CR2: 00000000000005b8 CR3: 0000000010617000 CR4: 00000000001406f0
[ 2.989776] CR2: 00000000000005b8 CR3: 0000000010617000 CR4: 00000000001406f0
[ 2.991866] Call Trace:
[ 2.991866] Call Trace:
[ 2.992600] <IRQ>
[ 2.992600] <IRQ>
[ 2.993208] lock_acquire+0xba/0x1c0
[ 2.993208] lock_acquire+0xba/0x1c0
[ 2.994271] ? try_to_wake_up+0x4a/0x530
[ 2.994271] ? try_to_wake_up+0x4a/0x530
[ 2.995432] ? lock_acquire+0xba/0x1c0
[ 2.995432] ? lock_acquire+0xba/0x1c0
[ 2.996551] ? try_to_wake_up+0x33/0x530
[ 2.996551] ? try_to_wake_up+0x33/0x530
[ 2.997720] _raw_spin_lock_irqsave+0x50/0x8b
[ 2.997720] _raw_spin_lock_irqsave+0x50/0x8b
[ 2.999008] ? try_to_wake_up+0x33/0x530
[ 2.999008] ? try_to_wake_up+0x33/0x530
[ 3.000167] try_to_wake_up+0x33/0x530
[ 3.000167] try_to_wake_up+0x33/0x530
[ 3.001279] wake_up_process+0x15/0x20
[ 3.001279] wake_up_process+0x15/0x20
[ 3.002391] ir_raw_event_handle+0x2c/0x40
[ 3.002391] ir_raw_event_handle+0x2c/0x40
[ 3.003613] sir_interrupt+0x248/0x260
[ 3.003613] sir_interrupt+0x248/0x260
[ 3.004728] __handle_irq_event_percpu+0x67/0x410
[ 3.004728] __handle_irq_event_percpu+0x67/0x410
[ 3.006119] handle_irq_event_percpu+0x2b/0x70
[ 3.006119] handle_irq_event_percpu+0x2b/0x70
[ 3.007436] handle_irq_event+0x3e/0x60
[ 3.007436] handle_irq_event+0x3e/0x60
[ 3.008578] handle_edge_irq+0xbc/0x1f0
[ 3.008578] handle_edge_irq+0xbc/0x1f0
[ 3.009717] handle_irq+0x1a/0x30
[ 3.009717] handle_irq+0x1a/0x30
[ 3.010700] do_IRQ+0x65/0x130
[ 3.010700] do_IRQ+0x65/0x130
[ 3.011614] common_interrupt+0x91/0x91
[ 3.011614] common_interrupt+0x91/0x91
[ 3.012756] RIP: 0010:_raw_spin_unlock_irqrestore+0x63/0x80
[ 3.012756] RIP: 0010:_raw_spin_unlock_irqrestore+0x63/0x80
[ 3.014385] RSP: 0000:ffff99608f337a40 EFLAGS: 00000297 ORIG_RAX: ffffffffffffffcb
[ 3.014385] RSP: 0000:ffff99608f337a40 EFLAGS: 00000297 ORIG_RAX: ffffffffffffffcb
[ 3.016608] RAX: ffff99608f33e540 RBX: 0000000000000297 RCX: 0000000000000006
[ 3.016608] RAX: ffff99608f33e540 RBX: 0000000000000297 RCX: 0000000000000006
[ 3.018684] RDX: 0000000000000179 RSI: ffff99608f33ebe8 RDI: 0000000000000297
[ 3.018684] RDX: 0000000000000179 RSI: ffff99608f33ebe8 RDI: 0000000000000297
[ 3.020777] RBP: ffff99608f337a50 R08: 0000000125f23c45 R09: 0000000000000000
[ 3.020777] RBP: ffff99608f337a50 R08: 0000000125f23c45 R09: 0000000000000000
[ 3.022868] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffae63f320
[ 3.022868] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffae63f320
[ 3.024961] R13: 0000000000000297 R14: 0000000000000002 R15: 0000000000000000
[ 3.024961] R13: 0000000000000297 R14: 0000000000000002 R15: 0000000000000000
[ 3.027051] </IRQ>
[ 3.027051] </IRQ>
[ 3.027696] serial8250_do_startup+0x2f6/0x800
[ 3.027696] serial8250_do_startup+0x2f6/0x800
[ 3.029009] serial8250_startup+0x46/0x60
[ 3.029009] serial8250_startup+0x46/0x60
[ 3.030198] uart_port_startup+0x97/0x1f0
[ 3.030198] uart_port_startup+0x97/0x1f0
[ 3.031386] ? uart_port_startup+0x1f0/0x1f0
[ 3.031386] ? uart_port_startup+0x1f0/0x1f0
[ 3.032654] uart_port_activate+0xa5/0x100
[ 3.032654] uart_port_activate+0xa5/0x100
[ 3.033866] tty_port_open+0x91/0xf0
[ 3.033866] tty_port_open+0x91/0xf0
[ 3.034927] ? uart_proc_open+0x40/0x40
[ 3.034927] ? uart_proc_open+0x40/0x40
[ 3.036068] uart_open+0x46/0x60
[ 3.036068] uart_open+0x46/0x60
[ 3.037030] tty_open+0x133/0x5c0
[ 3.037030] tty_open+0x133/0x5c0
[ 3.038021] ? tty_init_dev+0x240/0x240
[ 3.038021] ? tty_init_dev+0x240/0x240
[ 3.039157] chrdev_open+0xda/0x250
[ 3.039157] chrdev_open+0xda/0x250
[ 3.040196] ? cdev_put+0x40/0x40
[ 3.040196] ? cdev_put+0x40/0x40
[ 3.041184] do_dentry_open+0x2bf/0x420
[ 3.041184] do_dentry_open+0x2bf/0x420
[ 3.042528] vfs_open+0x5a/0xb0
[ 3.042528] vfs_open+0x5a/0xb0
[ 3.043467] path_openat+0x25c/0xf20
[ 3.043467] path_openat+0x25c/0xf20
[ 3.044532] do_filp_open+0xaa/0x130
[ 3.044532] do_filp_open+0xaa/0x130
[ 3.045598] ? __alloc_fd+0x12d/0x280
[ 3.045598] ? __alloc_fd+0x12d/0x280
[ 3.046685] ? __alloc_fd+0x12d/0x280
[ 3.046685] ? __alloc_fd+0x12d/0x280
[ 3.047772] ? preempt_count_sub+0x94/0xf0
[ 3.047772] ? preempt_count_sub+0x94/0xf0
[ 3.048991] ? _raw_spin_unlock+0x31/0x50
[ 3.048991] ? _raw_spin_unlock+0x31/0x50
[ 3.050178] do_sys_open+0x197/0x2e0
[ 3.050178] do_sys_open+0x197/0x2e0
[ 3.051236] ? do_sys_open+0x197/0x2e0
[ 3.051236] ? do_sys_open+0x197/0x2e0
[ 3.052346] SyS_open+0x32/0x40
[ 3.052346] SyS_open+0x32/0x40
[ 3.053289] kernel_init_freeable+0x1d8/0x2d2
[ 3.053289] kernel_init_freeable+0x1d8/0x2d2
[ 3.054585] ? rest_init+0x170/0x170
[ 3.054585] ? rest_init+0x170/0x170
[ 3.055646] kernel_init+0x18/0x170
[ 3.055646] kernel_init+0x18/0x170
[ 3.056685] ? schedule_tail+0x19/0x70
[ 3.056685] ? schedule_tail+0x19/0x70
[ 3.057796] ? rest_init+0x170/0x170
[ 3.057796] ? rest_init+0x170/0x170
[ 3.058866] ret_from_fork+0x31/0x40
[ 3.058866] ret_from_fork+0x31/0x40
[ 3.059926] Code: ff 8b 8d 64 ff ff ff 44 8b 8d 60 ff ff ff 75 42 45 31 e4 48 83 c4 70 44 89 e0 5b 41 5a 41 5c 41 5d 41 5e 41 5f 5d 49 8d 62 f8 c3 <49> 81 3c 24 a0 22 0b ad 41 be 00 00 00 00 45 0f 45 f0 83 fe 01
[ 3.059926] Code: ff 8b 8d 64 ff ff ff 44 8b 8d 60 ff ff ff 75 42 45 31 e4 48 83 c4 70 44 89 e0 5b 41 5a 41 5c 41 5d 41 5e 41 5f 5d 49 8d 62 f8 c3 <49> 81 3c 24 a0 22 0b ad 41 be 00 00 00 00 45 0f 45 f0 83 fe 01
[ 3.065518] RIP: __lock_acquire+0xdb/0x1280 RSP: ffffffffacc35cb0
[ 3.065518] RIP: __lock_acquire+0xdb/0x1280 RSP: ffffffffacc35cb0
[ 3.067305] CR2: 00000000000005b8
[ 3.067305] CR2: 00000000000005b8
[ 3.068288] ---[ end trace b8db06be04fca3aa ]---
[ 3.068288] ---[ end trace b8db06be04fca3aa ]---
# HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD
git bisect start 25a6a323286a4ee6c571d219727a864fef8ad63e 08332893e37af6ae779367e78e444f8f9571511d --
git bisect good fc7ec88b1908fa018407073a61223f2b6949b8ff # 19:00 G 11 0 0 0 Merge 'ath6kl/ath-qca' into devel-spot-201705231457
git bisect good 22debe8516d52f16157d37c3bc3b685093af771c # 19:55 G 11 0 0 0 Merge 'linux-review/Linus-Walleij/ARM-dma-pl08x-pass-reasonable-memcpy-settings/20170522-180845' into devel-spot-201705231457
git bisect bad 4d4a11c5c71f5c33dd9975f9b512c10428e22aba # 20:16 B 0 10 22 0 Merge 'linux-review/Gregory-CLEMENT/Improve-cp110-clk-support-on-Marvell-Armada-7K-8K/20170522-164927' into devel-spot-201705231457
git bisect bad 299e2ba6ebba23bbf11ff9f13140ec3686ebee4a # 20:33 B 0 11 25 2 Merge 'hid/for-next' into devel-spot-201705231457
git bisect good 9fc5fc1a40a71a444ecf61e89bb129750e94c1a6 # 21:25 G 11 0 0 0 Merge 'linux-review/Matthias-Kaehlcke/dmaengine-pl330-Mark-unused-functions-as-__maybe_unused/20170522-181208' into devel-spot-201705231457
git bisect good c5fdc9dfc0cd3b2c6394f7f43e12c6ad8b1850c6 # 22:41 G 11 0 0 2 Merge 'hverkuil-media/rpi3' into devel-spot-201705231457
git bisect bad bdd8ad1d9b23634d21944f9515aec1efcc8f9554 # 22:53 B 0 11 25 2 Merge 'linuxtv-media/master' into devel-spot-201705231457
git bisect bad 592ddc9f7db36c778d3bf9ffdfd93d8d5d548e48 # 23:05 B 0 11 23 0 [media] sir_ir: infinite loop in interrupt handler
git bisect good dd8245f445f5e751b38126140b6ba1723f06c60b # 00:03 G 11 0 0 2 [media] atomisp: don't treat warnings as errors
# first bad commit: [592ddc9f7db36c778d3bf9ffdfd93d8d5d548e48] [media] sir_ir: infinite loop in interrupt handler
git bisect good dd8245f445f5e751b38126140b6ba1723f06c60b # 00:39 G 31 0 0 2 [media] atomisp: don't treat warnings as errors
# extra tests with CONFIG_DEBUG_INFO_REDUCED
git bisect bad 592ddc9f7db36c778d3bf9ffdfd93d8d5d548e48 # 00:50 B 0 6 18 0 [media] sir_ir: infinite loop in interrupt handler
# extra tests on HEAD of linux-devel/devel-spot-201705231457
git bisect bad 25a6a323286a4ee6c571d219727a864fef8ad63e # 00:50 B 0 13 28 0 0day head guard for 'devel-spot-201705231457'
# extra tests on tree/branch linux-next/master
git bisect bad f482797714a9f4c2cf8e4a3929c7908413bd06c7 # 00:51 B 0 2 14 0 Add linux-next specific files for 20170523
# extra tests with first bad commit reverted
git bisect good 5152ac21d0c7aa950f872daecdd6b144d4d42c99 # 01:39 G 11 0 0 0 Revert "[media] sir_ir: infinite loop in interrupt handler"
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
3 years, 8 months
[cpu/hotplug] e2f160862b: WARNING:at_kernel/cpu.c:#lockdep_assert_cpus_held
by kernel test robot
FYI, we noticed the following commit:
commit: e2f160862b6608f0f85a960a2c8462fea3a0c407 ("cpu/hotplug: Convert hotplug locking to percpu rwsem")
https://git.kernel.org/cgit/linux/kernel/git/peterz/queue.git WIP.hotplug
in testcase: boot
on test machine: qemu-system-x86_64 -enable-kvm -m 420M
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+---------------------------------------------------+------------+------------+
| | f01bb559b6 | e2f160862b |
+---------------------------------------------------+------------+------------+
| boot_successes | 6 | 0 |
| boot_failures | 0 | 6 |
| WARNING:at_kernel/cpu.c:#lockdep_assert_cpus_held | 0 | 6 |
+---------------------------------------------------+------------+------------+
[ 3.422923] WARNING: CPU: 0 PID: 1 at kernel/cpu.c:234 lockdep_assert_cpus_held+0x25/0x29
[ 3.425332] Modules linked in:
[ 3.426258] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.12.0-rc2-00030-ge2f1608 #35
[ 3.428257] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[ 3.430822] task: ffff9cb3ab478040 task.stack: ffffb77880194000
[ 3.432231] RIP: 0010:lockdep_assert_cpus_held+0x25/0x29
[ 3.433547] RSP: 0000:ffffb77880197dd0 EFLAGS: 00010246
[ 3.434859] RAX: 0000000000000000 RBX: ffffffff93cb01e0 RCX: 00000000000000ff
[ 3.436513] RDX: 00000000000000ff RSI: ffffffff93c791b8 RDI: 0000000000000246
[ 3.438188] RBP: ffffb77880197dd0 R08: 00000001cf7cfd90 R09: 0000000000000001
[ 3.439804] R10: ffffb77880197d18 R11: 0000000000000002 R12: 0000000000000000
[ 3.441473] R13: 0000000000000000 R14: ffffffff93cb0a90 R15: 0000000000000000
[ 3.443116] FS: 0000000000000000(0000) GS:ffff9cb3ad200000(0000) knlGS:0000000000000000
[ 3.445157] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3.446551] CR2: 0000000000000000 CR3: 0000000016c2c000 CR4: 00000000000006f0
[ 3.448165] Call Trace:
[ 3.448940] register_kprobe+0x3ff/0x499
[ 3.450052] init_test_probes+0x51/0x462
[ 3.451189] ? init_test_probes+0x51/0x462
[ 3.452294] ? register_module_notifier+0x18/0x1a
[ 3.453492] init_kprobes+0x1f7/0x204
[ 3.454480] ? debugfs_kprobe_init+0xaa/0xaa
[ 3.455578] ? set_debug_rodata+0x17/0x17
[ 3.456629] do_one_initcall+0x90/0x138
[ 3.457675] ? set_debug_rodata+0x17/0x17
[ 3.458732] kernel_init_freeable+0x1d5/0x25d
[ 3.460562] ? rest_init+0x13b/0x13b
[ 3.461621] kernel_init+0xe/0xfa
[ 3.462542] ret_from_fork+0x31/0x40
[ 3.463553] Code: 41 5e 41 5f 5d c3 0f 1f 44 00 00 83 3d 88 96 c8 02 00 74 1a 55 83 ce ff 48 c7 c7 b8 91 c7 93 48 89 e5 e8 d1 cc 03 00 85 c0 75 02 <0f> ff 5d c3 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54
[ 3.468022] ---[ end trace 1808fc378a85ec47 ]---
To reproduce:
git clone https://github.com/01org/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
Kernel Test Robot
3 years, 8 months