[lkp] [x86/mm/pat/32] c1f3bfef1a: BUG: kernel test hang
by kernel test robot
FYI, we noticed the below changes on
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.x86/mm
commit c1f3bfef1a8e9bbf354e074e24673a938dcf6e8d ("x86/mm/pat/32: Remove pgd_list use from the PAT code")
+----------------------+------------+------------+
| | f9986a1113 | c1f3bfef1a |
+----------------------+------------+------------+
| boot_successes | 168 | 158 |
| boot_failures | 0 | 10 |
| BUG:kernel_test_hang | 0 | 10 |
+----------------------+------------+------------+
[ 6.040462] Write protecting the kernel text: 13164k
[ 6.041299] Write protecting the kernel read-only data: 4084k
[ 6.187382] gfs2: path_lookup on rootfs returned error -2
Kernel tests: Boot OK!
[ 6.281537] random: trinity urandom read with 1 bits of entropy available
[ 16.356239] sock: process `trinity-main' is using obsolete setsockopt SO_BSDCOMPAT
[ 17.055798] caif:caif_disconnect_client(): nothing to disconnect
[ 17.056930] caif:caif_disconnect_client(): nothing to disconnect
[ 17.057935] caif:caif_disconnect_client(): nothing to disconnect
[ 17.058989] caif:caif_disconnect_client(): nothing to disconnect
[ 17.064103] caif:caif_disconnect_client(): nothing to disconnect
[ 17.065158] caif:caif_disconnect_client(): nothing to disconnect
[ 17.066185] caif:caif_disconnect_client(): nothing to disconnect
[ 17.072125] caif:caif_disconnect_client(): nothing to disconnect
[ 17.073146] caif:caif_disconnect_client(): nothing to disconnect
[ 17.074162] caif:caif_disconnect_client(): nothing to disconnect
[ 17.075200] caif:caif_disconnect_client(): nothing to disconnect
[ 17.076233] caif:caif_disconnect_client(): nothing to disconnect
[ 17.077232] caif:caif_disconnect_client(): nothing to disconnect
[ 17.084139] caif:caif_disconnect_client(): nothing to disconnect
[ 17.085144] caif:caif_disconnect_client(): nothing to disconnect
[ 17.086160] caif:caif_disconnect_client(): nothing to disconnect
[ 17.112138] caif:caif_disconnect_client(): nothing to disconnect
[ 17.120097] caif:caif_disconnect_client(): nothing to disconnect
[ 17.121090] caif:caif_disconnect_client(): nothing to disconnect
[ 17.122087] caif:caif_disconnect_client(): nothing to disconnect
[ 17.123074] caif:caif_disconnect_client(): nothing to disconnect
[ 17.124074] caif:caif_disconnect_client(): nothing to disconnect
[ 17.125142] caif:caif_disconnect_client(): nothing to disconnect
[ 17.126129] caif:caif_disconnect_client(): nothing to disconnect
[ 17.132095] caif:caif_disconnect_client(): nothing to disconnect
[ 17.133101] caif:caif_disconnect_client(): nothing to disconnect
[ 17.134082] caif:caif_disconnect_client(): nothing to disconnect
[ 17.135105] caif:caif_disconnect_client(): nothing to disconnect
[ 17.136117] caif:caif_disconnect_client(): nothing to disconnect
[ 17.144052] caif:caif_disconnect_client(): nothing to disconnect
[ 17.145080] caif:caif_disconnect_client(): nothing to disconnect
[ 17.146068] caif:caif_disconnect_client(): nothing to disconnect
[ 17.227270] mmap: trinity-c0 (544) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.txt.
Elapsed time: 1520
BUG: kernel test hang
qemu-system-i386 -enable-kvm -kernel /pkg/linux/i386-randconfig-b0-01111907/gcc-5/c1f3bfef1a8e9bbf354e074e24673a938dcf6e8d/vmlinuz-4.3.0-rc2-00008-gc1f3bfe -append 'root=/dev/ram0 user=lkp job=/lkp/scheduled/vm-lkp-wsx03-yocto-i386-11/bisect_boot-1-yocto-minimal-i386.cgz-i386-randconfig-b0-01111907-c1f3bfef1a8e9bbf354e074e24673a938dcf6e8d-20160112-70327-o76muc-0.yaml ARCH=i386 kconfig=i386-randconfig-b0-01111907 branch=linux-devel/devel-catchup-201601111942 commit=c1f3bfef1a8e9bbf354e074e24673a938dcf6e8d BOOT_IMAGE=/pkg/linux/i386-randconfig-b0-01111907/gcc-5/c1f3bfef1a8e9bbf354e074e24673a938dcf6e8d/vmlinuz-4.3.0-rc2-00008-gc1f3bfe max_uptime=600 RESULT_ROOT=/result/boot/1/vm-lkp-wsx03-yocto-i386/yocto-minimal-i386.cgz/i386-randconfig-b0-01111907/gcc-5/c1f3bfef1a8e9bbf354e074e24673a938dcf6e8d/16 LKP_SERVER=inn earlyprintk=ttyS0,115200 systemd.log_level=err debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal rw ip=::::vm-lkp-wsx03-yocto-i386-11::dhcp drbd.minor_count=8' -initrd /fs/sda1/initrd-vm-lkp-wsx03-yocto-i386-11 -m 320 -smp 1 -device e1000,netdev=net0 -netdev user,id=net0 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -drive file=/fs/sda1/disk0-vm-lkp-wsx03-yocto-i386-11,media=disk,if=virtio -pidfile /dev/shm/kboot/pid-vm-lkp-wsx03-yocto-i386-11 -serial file:/dev/shm/kboot/serial-vm-lkp-wsx03-yocto-i386-11 -daemonize -display none -monitor null
Thanks,
Ying Huang
4 years, 12 months
Re: [LKP] [lkp] [mm] 7d2eba0557: BUG: unable to handle kernel NULL pointer dereference at (null)
by Vlastimil Babka
On 01/19/2016 11:45 PM, Cyrill Gorcunov wrote:
> On Tue, Jan 19, 2016 at 02:30:45PM -0800, David Rientjes wrote:
>> On Tue, 19 Jan 2016, Cyrill Gorcunov wrote:
>>
>> > Seems it should be something like that (untested at moment, please
>> > take a look).
>> > ---
>> > From: Cyrill Gorcunov <gorcunov(a)openvz.org>
>> > Subject: [PATCH] mm: Fix tracepoint for scanning pages
>> >
>> > The page might be NULL so use page_to_pfn in conditional call.
>> >
>> > Signed-off-by: Cyrill Gorcunov <gorcunov(a)openvz.org>
>>
>> I think this is obviously correct, so
>>
>> Acked-by: David Rientjes <rientjes(a)google.com>
>
> Thank you. I've compile tested it, but didn't run.
This has been in mmotm since november:
http://ozlabs.org/~akpm/mmotm/broken-out/mm-fix-kernel-crash-in-khugepage...
Although your patch does use -1UL instead of -1 (AFAICS the only difference, but
it's too late here), which Steven Rostedt suggested, so it's probably better.
4 years, 12 months
Re: [LKP] [lkp] [mm] 7d2eba0557: BUG: unable to handle kernel NULL pointer dereference at (null)
by David Rientjes
On Tue, 19 Jan 2016, Cyrill Gorcunov wrote:
> Seems it should be something like that (untested at moment, please
> take a look).
> ---
> From: Cyrill Gorcunov <gorcunov(a)openvz.org>
> Subject: [PATCH] mm: Fix tracepoint for scanning pages
>
> The page might be NULL so use page_to_pfn in conditional call.
>
> Signed-off-by: Cyrill Gorcunov <gorcunov(a)openvz.org>
I think this is obviously correct, so
Acked-by: David Rientjes <rientjes(a)google.com>
But we'd benefit from a Tested-by from the robot even more.
4 years, 12 months
364ad58c73: WARNING: CPU: 0 PID: 28 at kernel/locking/lockdep.c:2755 lockdep_trace_alloc()
by kernel test robot
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
https://github.com/0day-ci/linux Zhaoyang-Huang/refining-the-rpm_suspend-function/20160119-171729
commit 364ad58c73860cf2030e2f4d5e708009930e76df
Author: Zhaoyang Huang <zhaoyang.huang(a)linaro.org>
AuthorDate: Tue Jan 19 17:14:18 2016 +0800
Commit: 0day robot <fengguang.wu(a)intel.com>
CommitDate: Tue Jan 19 17:17:32 2016 +0800
refining the rpm_suspend function
There are too many branch path within he original rpm_suspend funciton,which make
the code a little bit hard for understanding and debugging.Just try to split the
function into some small one to eliminate the goto and make one optimization for
avoiding transfering from wait to auto when irq_safe flag set
Signed-off-by: Zhaoyang Huang <zhaoyang.huang(a)spreadtrum.com>
+------------------------------------------------------------+------------+------------+------------+
| | 2c15ec6052 | 364ad58c73 | 2012d33d6e |
+------------------------------------------------------------+------------+------------+------------+
| boot_successes | 63 | 0 | 0 |
| boot_failures | 0 | 22 | 13 |
| WARNING:at_kernel/locking/lockdep.c:#lockdep_trace_alloc() | 0 | 22 | 13 |
| BUG:spinlock_lockup_suspected_on_CPU | 0 | 3 | 4 |
| EIP_is_at_default_send_IPI_mask_logical | 0 | 3 | 4 |
| EIP_is_at_lock_release | 0 | 1 | 1 |
| backtrace:pm_runtime_work | 0 | 22 | 13 |
| backtrace:hub_event | 0 | 3 | 4 |
| EIP_is_at_trace_hardirqs_off | 0 | 1 | 1 |
| INFO:rcu_sched_detected_stalls_on_CPUs/tasks | 0 | 3 | |
| EIP_is_at_raw_spin_lock_irqsave | 0 | 1 | |
| INFO:rcu_preempt_detected_stalls_on_CPUs/tasks | 0 | 1 | |
| backtrace:cpu_startup_entry | 0 | 1 | |
| backtrace:schedule_timeout | 0 | 1 | |
| EIP_is_at_do_raw_spin_lock | 0 | 0 | 1 |
| EIP_is_at__wake_up_common | 0 | 0 | 1 |
+------------------------------------------------------------+------------+------------+------------+
[ 36.551598] hub 1-0:1.0: 1 port detected
[ 36.553196] ------------[ cut here ]------------
[ 36.553196] ------------[ cut here ]------------
[ 36.554386] WARNING: CPU: 0 PID: 28 at kernel/locking/lockdep.c:2755 lockdep_trace_alloc+0x141/0x150()
[ 36.554386] WARNING: CPU: 0 PID: 28 at kernel/locking/lockdep.c:2755 lockdep_trace_alloc+0x141/0x150()
[ 36.557080] DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags))
[ 36.557080] DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags))
git bisect start 2012d33d6e40c6c906bd7a5c017d22d21f354f3d 8005c49d9aea74d382f474ce11afbbc7d7130bec --
git bisect bad ee90c9d98b22702c8e615fe6293f8df4f8a397e7 # 18:35 0- 2 Merge 'renesas/devel' into devel-catchup-201601191726
git bisect good 16b66e2f3f6e8af42c40c0434c962bfcdb05aac8 # 18:40 22+ 0 Merge 'linux-review/Fredrik-Markstrom/ipc-mqueue-Obey-RLIM_INFINITY-for-message-queues/20160119-171827' into devel-catchup-201601191726
git bisect bad 3cdfcaa99044c0b5ced4c2a3afe9794c48cb3261 # 19:21 0- 5 Merge 'linux-review/Sandeep-Tripathy/watchdog-sp805-ping-fails-to-abort-wdt-reset/20160119-171927' into devel-catchup-201601191726
git bisect bad a69fb75d6eda8e848c4a72f811a0589902aa94a6 # 19:29 0- 1 Merge 'linux-review/Zhaoyang-Huang/refining-the-rpm_suspend-function/20160119-171729' into devel-catchup-201601191726
git bisect good c597b6bcd5c624534afc3df65cdc42bb05173bca # 19:37 22+ 0 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
git bisect good d73e5f41462182053ce1195c3fc4fc14a7e7666b # 19:41 22+ 22 Merge branch 'bpf-misc-updates'
git bisect good 8a3719a184cfd122eba9212c8d4a2fab5c9fb628 # 19:48 22+ 0 batman-adv: Remove kerneldoc for missing struct members
git bisect good c17488d06666153a14dd3f21bd10eba58383f6c1 # 19:53 21+ 0 Merge tag 'trace-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
git bisect good 4c170ed1d9d66464361cb47853ffb9fa64ca5048 # 20:01 22+ 0 Merge branches 'acpi-pnp' and 'pnp'
git bisect good b366f976323d5d9ccb612e20afaaddf1fb84418d # 20:07 22+ 1 Merge branch 'pm-cpufreq'
git bisect good 17874de324174d79905d3ae36627d2f27cbd29c3 # 20:12 22+ 0 Merge branch 'pm-devfreq' into linux-next
git bisect good 2ed673d46a01e3c7d9dfac4756b5e6afb8800671 # 20:17 22+ 0 Merge branches 'acpi-fan', 'acpi-video' and 'acpica' into linux-next
git bisect good 7f42d4ab55d17d453b1e01ab0ab1dc909c701f74 # 20:24 21+ 0 Merge branches 'pm-domains' and 'pm-cpuidle' into linux-next
git bisect good 5d33ad4d679645b4c2124120f265434699309ac3 # 20:28 22+ 0 Merge branch 'pm-cpuidle' into linux-next
git bisect good 2c15ec6052592c07d5e904223b3182a3f38c212a # 20:34 22+ 0 Merge branch 'pm-tools' into linux-next
git bisect bad 364ad58c73860cf2030e2f4d5e708009930e76df # 20:46 0- 1 refining the rpm_suspend function
# first bad commit: [364ad58c73860cf2030e2f4d5e708009930e76df] refining the rpm_suspend function
git bisect good 2c15ec6052592c07d5e904223b3182a3f38c212a # 20:50 63+ 0 Merge branch 'pm-tools' into linux-next
# extra tests with DEBUG_INFO
git bisect bad 364ad58c73860cf2030e2f4d5e708009930e76df # 21:02 0- 1 refining the rpm_suspend function
# extra tests on HEAD of linux-devel/devel-catchup-201601191726
git bisect bad 2012d33d6e40c6c906bd7a5c017d22d21f354f3d # 21:02 0- 13 0day head guard for 'devel-catchup-201601191726'
# extra tests on tree/branch linux-review/Zhaoyang-Huang/refining-the-rpm_suspend-function/20160119-171729
git bisect bad 364ad58c73860cf2030e2f4d5e708009930e76df # 21:07 0- 3 refining the rpm_suspend function
# extra tests with first bad commit reverted
git bisect good 521d0ee31e5aaaad38eae75b73b75adeca12adf3 # 21:15 66+ 0 Revert "refining the rpm_suspend function"
# extra tests on tree/branch linus/master
# extra tests on tree/branch linux-next/master
git bisect good 7fa8f5d8b04f8ce175a40009a86a0dba001b0311 # 21:22 61+ 0 Add linux-next specific files for 20160119
This script may reproduce the error.
----------------------------------------------------------------------------
#!/bin/bash
kernel=$1
initrd=quantal-core-i386.cgz
wget --no-clobber https://github.com/fengguang/reproduce-kernel-bug/raw/master/initrd/$initrd
kvm=(
qemu-system-x86_64
-enable-kvm
-cpu kvm64
-kernel $kernel
-initrd $initrd
-m 300
-smp 2
-device e1000,netdev=net0
-netdev user,id=net0
-boot order=nc
-no-reboot
-watchdog i6300esb
-rtc base=localtime
-serial stdio
-display none
-monitor null
)
append=(
hung_task_panic=1
earlyprintk=ttyS0,115200
systemd.log_level=err
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
console=ttyS0,115200
console=tty0
vga=normal
root=/dev/ram0
rw
drbd.minor_count=8
)
"${kvm[@]}" --append "${append[*]}"
----------------------------------------------------------------------------
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
4 years, 12 months
[lkp] [NFS] a938e65da3: BUG: kernel test hang
by kernel test robot
FYI, we noticed the below changes on
git://internal_merge_and_test_tree revert-a938e65da3843cf2122b1a4d3b209754f22ad44e-a938e65da3843cf2122b1a4d3b209754f22ad44e
commit a938e65da3843cf2122b1a4d3b209754f22ad44e ("NFS: Fix attribute cache revalidation")
[ 13.828531] Key type dns_resolver registered
[ 13.833960] NFS: Registering the id_resolver key type
[ 13.835138] Key type id_resolver registered
[ 13.836178] Key type id_legacy registered
Elapsed time: 1520
BUG: kernel test hang
qemu-system-x86_64 -enable-kvm -cpu Haswell,+smep,+smap -kernel /pkg/linux/x86_64-rhel/gcc-4.9/a938e65da3843cf2122b1a4d3b209754f22ad44e/vmlinuz-4.4.0-rc7-00001-ga938e65 -append 'root=/dev/ram0 user=lkp job=/lkp/scheduled/vm-kbuild-1G-5/rand_boot-1-debian-x86_64.cgz-x86_64-rhel-a938e65da3843cf2122b1a4d3b209754f22ad44e-20160118-13026-sjxx2g-0.yaml ARCH=x86_64 kconfig=x86_64-rhel branch=linux-review/Trond-Myklebust/NFS-Fix-attribute-cache-revalidation/20151230-080549 commit=a938e65da3843cf2122b1a4d3b209754f22ad44e BOOT_IMAGE=/pkg/linux/x86_64-rhel/gcc-4.9/a938e65da3843cf2122b1a4d3b209754f22ad44e/vmlinuz-4.4.0-rc7-00001-ga938e65 max_uptime=600 RESULT_ROOT=/result/boot/1/vm-kbuild-1G/debian-x86_64-2015-02-07.cgz/x86_64-rhel/gcc-4.9/a938e65da3843cf2122b1a4d3b209754f22ad44e/0 LKP_SERVER=inn earlyprintk=ttyS0,115200 systemd.log_level=err debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal rw ip=::::vm-kbuild-1G-5::dhcp' -initrd /fs/sdf1/initrd-vm-kbuild-1G-5 -m 1024 -smp 2 -device e1000,netdev=net0 -netdev user,id=net0,hostfwd=tcp::23004-:22 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -device virtio-scsi-pci,id=scsi0 -drive file=/fs/sdf1/disk0-vm-kbuild-1G-5,if=none,id=hd0,media=disk,aio=native,cache=none -device scsi-hd,bus=scsi0.0,drive=hd0,scsi-id=1,lun=0 -drive file=/fs/sdf1/disk1-vm-kbuild-1G-5,if=none,id=hd1,media=disk,aio=native,cache=none -device scsi-hd,bus=scsi0.0,drive=hd1,scsi-id=1,lun=1 -drive file=/fs/sdf1/disk2-vm-kbuild-1G-5,if=none,id=hd2,media=disk,aio=native,cache=none -device scsi-hd,bus=scsi0.0,drive=hd2,scsi-id=1,lun=2 -drive file=/fs/sdf1/disk3-vm-kbuild-1G-5,if=none,id=hd3,media=disk,aio=native,cache=none -device scsi-hd,bus=scsi0.0,drive=hd3,scsi-id=1,lun=3 -drive file=/fs/sdf1/disk4-vm-kbuild-1G-5,if=none,id=hd4,media=disk,aio=native,cache=none -device scsi-hd,bus=scsi0.0,drive=hd4,scsi-id=1,lun=4 -pidfile /dev/shm/kboot/pid-vm-kbuild-1G-5 -serial file:/dev/shm/kboot/serial-vm-kbuild-1G-5 -daemonize -display none -monitor null
BTW: in our testing, a NFS fs will be mount.
Thanks,
Ying Huang
4 years, 12 months
[lkp] [mm] 7d2eba0557: BUG: unable to handle kernel NULL pointer dereference at (null)
by kernel test robot
FYI, we noticed the below changes on
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit 7d2eba0557c18f7522b98befed98799990dd4fdb ("mm: add tracepoint for scanning pages")
+-----------------------------------------------------------+------------+------------+
| | cb5490a5ee | 7d2eba0557 |
+-----------------------------------------------------------+------------+------------+
| boot_successes | 0 | 0 |
| boot_failures | 12 | 12 |
| BUG:kernel_test_oversize | 10 | |
| Kernel_panic-not_syncing:Attempted_to_kill_init!exitcode= | 2 | 4 |
| BUG:unable_to_handle_kernel | 0 | 8 |
| Oops | 0 | 8 |
| RIP:khugepaged_scan_pmd | 0 | 8 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 8 |
| backtrace:khugepaged | 0 | 8 |
+-----------------------------------------------------------+------------+------------+
[ 28.528131] systemd-journald[162]: Vacuuming...
[ 28.543867] systemd-journald[162]: Vacuuming done, freed 0 bytes
[ 28.548220] systemd-journald[162]: Flushing /dev/kmsg...
[ 28.552721] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 28.553471] IP: [<ffffffffadeed16b>] khugepaged_scan_pmd+0x33b/0xaa0
[ 28.553480] PGD 0
[ 28.553484] Oops: 0000 [#1] PREEMPT SMP
[ 28.553490] Modules linked in: autofs4
[ 28.553497] CPU: 1 PID: 25 Comm: khugepaged Not tainted 4.4.0-05704-g7d2eba0 #1
[ 28.553498] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[ 28.553501] task: ffff880035b75000 ti: ffff880035b78000 task.ti: ffff880035b78000
[ 28.553503] RIP: 0010:[<ffffffffadeed16b>] [<ffffffffadeed16b>] khugepaged_scan_pmd+0x33b/0xaa0
[ 28.553508] RSP: 0018:ffff880035b7bd20 EFLAGS: 00010246
[ 28.553510] RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffff880035b7bdf0
[ 28.553512] RDX: ffff880000000000 RSI: 0000000000000000 RDI: 800000002f8000e7
[ 28.553514] RBP: ffff880035b7bda0 R08: ffff8800155a6448 R09: 0000000000000000
[ 28.553516] R10: 0000000000000371 R11: ffff8800354d1120 R12: 0000000000000000
[ 28.553517] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
[ 28.553520] FS: 0000000000000000(0000) GS:ffff880036800000(0000) knlGS:0000000000000000
[ 28.553522] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 28.553524] CR2: 0000000000000000 CR3: 00000000157a8000 CR4: 00000000000406a0
[ 28.553528] Stack:
[ 28.553530] ffff880035b75bd8 ffff880035b7bdf0 ffffffffadd3a94f ffff880035b75000
[ 28.553535] ffff880015751510 0000000000000b54 ffff880035b7be10 ffff880035b7bd78
[ 28.553541] 0000000000000000 00007fd735600000 ffff8800354d1000 0000000000000001
[ 28.553546] Call Trace:
[ 28.553552] [<ffffffffadd3a94f>] ? __lock_is_held+0x6f/0xa0
[ 28.553556] [<ffffffffadeee2ea>] khugepaged+0xa1a/0xac0
[ 28.553560] [<ffffffffadd30bd0>] ? woken_wake_function+0x30/0x30
[ 28.553563] [<ffffffffadeed8d0>] ? khugepaged_scan_pmd+0xaa0/0xaa0
[ 28.553568] [<ffffffffadcf9bb2>] kthread+0x132/0x160
[ 28.553574] [<ffffffffadcf9a80>] ? kthread_unpark+0x80/0x80
[ 28.553578] [<ffffffffae764c9f>] ret_from_fork+0x3f/0x70
[ 28.553581] [<ffffffffadcf9a80>] ? kthread_unpark+0x80/0x80
[ 28.553583] Code: 02 00 00 bb 03 00 00 00 48 83 05 d0 4e b4 02 01 4d 89 e5 48 8b 7d b8 e8 74 5d 87 00 48 83 05 ec 4e b4 02 01 c7 45 c0 00 00 00 00 <49> 8b 14 24 48 89 d0 48 c1 ea 35 48 8b 14 d5 00 00 a2 b0 48 c1
[ 28.553655] RIP [<ffffffffadeed16b>] khugepaged_scan_pmd+0x33b/0xaa0
[ 28.553659] RSP <ffff880035b7bd20>
[ 28.553660] CR2: 0000000000000000
[ 28.553666] ---[ end trace bb022a4fda57d1e5 ]---
[ 28.553669] Kernel panic - not syncing: Fatal exception
Thanks,
Ying Huang
4 years, 12 months
[lkp] [drm/i915/bxt] 5f48004498: [drm:i915_gem_init_stolen_reserved [i915]] *ERROR* conflict detected with stolen region: [0xdba00000 - 0xdfa00000]
by kernel test robot
FYI, we noticed the below changes on
git://internal_merge_and_test_tree revert-5f480044981fe0dfd48f83528a24a0dbc4a85d9e-5f480044981fe0dfd48f83528a24a0dbc4a85d9e
commit 5f480044981fe0dfd48f83528a24a0dbc4a85d9e ("drm/i915/bxt: Check BIOS RC6 setup before enabling RC6")
<6>[ 29.633561] ehci-pci 0000:00:1a.0: System wakeup disabled by ACPI
<6>[ 29.633764] pcieport 0000:00:1c.3: System wakeup disabled by ACPI
<6>[ 29.633892] PM: noirq resume of devices complete after 10.934 msecs
<3>[ 29.633992] [drm:i915_gem_init_stolen_reserved [i915]] *ERROR* conflict detected with stolen region: [0xdba00000 - 0xdfa00000]
<6>[ 29.634228] PM: early resume of devices complete after 0.292 msecs
<6>[ 29.634297] e1000e 0000:00:19.0: System wakeup disabled by ACPI
<6>[ 29.634434] rtc_cmos 00:02: System wakeup disabled by ACPI
To reproduce:
git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
cd lkp-tests
bin/lkp install job.yaml # job file is attached in this email
bin/lkp run job.yaml
Thanks,
Kernel Test Robot
4 years, 12 months
00eb7e19d9: BUG: kernel early-boot hang early console in setup code
by kernel test robot
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
git://internal_merge_and_test_tree devel-spot-201601182021
commit 00eb7e19d94cc7bcde63ee2d28f3ed8229bd10d9
Merge: 4197f19 60d77b3
Author: 0day robot <fengguang.wu(a)intel.com>
AuthorDate: Mon Jan 18 20:30:16 2016 +0800
Commit: 0day robot <fengguang.wu(a)intel.com>
CommitDate: Mon Jan 18 20:30:16 2016 +0800
Merge 'linux-review/Tapan-Prakash-T/Staging-usb-gadget-legacy-printer-Fixed-some-space-style-issues/20160117-201908' into devel-spot-201601182021
+------------------------------------------------------------------+------------+------------+------------+------------+
| | 4197f19242 | 60d77b3d22 | 00eb7e19d9 | 42f45a6fd9 |
+------------------------------------------------------------------+------------+------------+------------+------------+
| boot_successes | 88 | 86 | 0 | 0 |
| boot_failures | 8 | 4 | 39 | 53 |
| BUG:kernel_test_oversize | 6 | 4 | | |
| Out_of_memory:Kill_process | 2 | | | |
| Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 2 | | | |
| BUG:kernel_early-boot_hang_early_console_in_setup_code | 0 | 0 | 39 | 53 |
+------------------------------------------------------------------+------------+------------+------------+------------+
early console in setup code
Elapsed time: 310
BUG: kernel early-boot hang early console in setup code
Linux version 4.4.0-03578-g00eb7e1 #1
Command line: hung_task_panic=1 earlyprintk=ttyS0,115200 systemd.log_level=err debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kbuild-tests/run-queue/kvm/x86_64-randconfig-s2-01182058/linux-devel:devel-spot-201601182021:00eb7e19d94cc7bcde63ee2d28f3ed8229bd10d9:bisect-linux-1/.vmlinuz-00eb7e19d94cc7bcde63ee2d28f3ed8229bd10d9-20160118224709-15-ivb41 branch=linux-devel/devel-spot-201601182021 BOOT_IMAGE=/pkg/linux/x86_64-randconfig-s2-01182058/gcc-5/00eb7e19d94cc7bcde63ee2d28f3ed8229bd10d9/vmlinuz-4.4.0-03578-g00eb7e1 drbd.minor_count=8
qemu-system-x86_64 -enable-kvm -cpu Haswell,+smep,+smap -kernel /pkg/linux/x86_64-randconfig-s2-01182058/gcc-5/00eb7e19d94cc7bcde63ee2d28f3ed8229bd10d9/vmlinuz-4.4.0-03578-g00eb7e1 -append 'hung_task_panic=1 earlyprintk=ttyS0,115200 systemd.log_level=err debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw link=/kbuild-tests/run-queue/kvm/x86_64-randconfig-s2-01182058/linux-devel:devel-spot-201601182021:00eb7e19d94cc7bcde63ee2d28f3ed8229bd10d9:bisect-linux-1/.vmlinuz-00eb7e19d94cc7bcde63ee2d28f3ed8229bd10d9-20160118224709-15-ivb41 branch=linux-devel/devel-spot-201601182021 BOOT_IMAGE=/pkg/linux/x86_64-randconfig-s2-01182058/gcc-5/00eb7e19d94cc7bcde63ee2d28f3ed8229bd10d9/vmlinuz-4.4.0-03578-g00eb7e1 drbd.minor_count=8' -initrd /osimage/yocto/yocto-minimal-x86_64.cgz -m 256 -smp 1 -device e1000,netdev=net0 -netdev user,id=net0 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -drive file=/fs/sda5/disk0-yocto-ivb41-74,media=disk,if=virtio -drive file=/fs/sda5/disk1-yocto-ivb41-74,media=disk,if=virtio -drive file=/fs/sda5/disk2-yocto-ivb41-74,media=disk,if=virtio -drive file=/fs/sda5/disk3-yocto-ivb41-74,media=disk,if=virtio -drive file=/fs/sda5/disk4-yocto-ivb41-74,media=disk,if=virtio -drive file=/fs/sda5/disk5-yocto-ivb41-74,media=disk,if=virtio -drive file=/fs/sda5/disk6-yocto-ivb41-74,media=disk,if=virtio -pidfile /dev/shm/kboot/pid-yocto-ivb41-74 -serial file:/dev/shm/kboot/serial-yocto-ivb41-74 -daemonize -display none -monitor null
git bisect start 42f45a6fd95a0c4008e54aa74ac2ce3733f700d2 afd2ff9b7e1b367172f18ba7f693dfb62bdcb2dc --
git bisect good 9a5f47e69e086e571a2738c18ef63bb2fd72d39d # 22:00 20+ 2 Merge 'linux-review/Jani-Nikula/drm-i915-sdvo-revert-bogus-kernel-doc-comments-to-normal-comments/20160118-152230' into devel-spot-201601182021
git bisect good 4614f296f61cc0733410fe4f3fdb5d224b50d133 # 22:06 20+ 0 Merge 'rockchip/v4.6-armsoc/dts32' into devel-spot-201601182021
git bisect good c90cdf350f422b8aad14eedd5020c2648e4d9dc2 # 22:15 20+ 0 Merge 'rockchip/v4.6-clk/next' into devel-spot-201601182021
git bisect good 5bcf2989f00253f73ce72bb8b5a6edfac0486722 # 22:27 20+ 0 Merge 'ard.biesheuvel/arm64-kaslr-v4' into devel-spot-201601182021
git bisect good 4197f192425628be8f80f156b0e47052140adb51 # 22:40 20+ 2 Merge 'linux-review/Alexander-Kuleshov/x86-traps-c-refactor-preemption-and-interrupt-flag-handling/20160117-211513' into devel-spot-201601182021
git bisect bad 00eb7e19d94cc7bcde63ee2d28f3ed8229bd10d9 # 22:52 0- 2 Merge 'linux-review/Tapan-Prakash-T/Staging-usb-gadget-legacy-printer-Fixed-some-space-style-issues/20160117-201908' into devel-spot-201601182021
git bisect good 5072cfc40a80cea3749fd3413b3896630d8c787e # 22:59 20+ 0 usb: dwc3: of-simple: fix build warning on !PM
git bisect good 43a404577a93d236913b67e41758adf5b9a8f45d # 23:06 20+ 0 usb: chipidea: host: set host to be null after hcd is freed
git bisect good c396a1c7ee1b3b460cf01824b03e0627a7db5b01 # 23:16 20+ 0 phy: ti-pipe3: use *syscon* framework API to power on/off the PHY
git bisect good 6ff9d2761b8655991f48f113f7edaefea5c92905 # 23:23 20+ 0 USB: mxu11x0: drop redundant function name from error messages
git bisect good daf273350d96241752b00020940c07dc2cff2e0a # 23:34 20+ 0 Merge tag 'phy-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next
git bisect good 48346892ff2a2bd66301875ebffd408627419feb # 23:45 20+ 0 Merge tag 'usb-serial-4.4-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-next
git bisect good 60d77b3d2229eaf29eddf0d7a7947c3c922b1a4d # 23:58 19+ 2 MAINTAINERS: change my email address
# first bad commit: [00eb7e19d94cc7bcde63ee2d28f3ed8229bd10d9] Merge 'linux-review/Tapan-Prakash-T/Staging-usb-gadget-legacy-printer-Fixed-some-space-style-issues/20160117-201908' into devel-spot-201601182021
git bisect good 4197f192425628be8f80f156b0e47052140adb51 # 00:06 62+ 5 Merge 'linux-review/Alexander-Kuleshov/x86-traps-c-refactor-preemption-and-interrupt-flag-handling/20160117-211513' into devel-spot-201601182021
git bisect good 60d77b3d2229eaf29eddf0d7a7947c3c922b1a4d # 00:09 62+ 2 MAINTAINERS: change my email address
# extra tests on HEAD of linux-devel/devel-spot-201601182021
git bisect bad 42f45a6fd95a0c4008e54aa74ac2ce3733f700d2 # 00:09 0- 27 0day head guard for 'devel-spot-201601182021'
# extra tests on tree/branch linux-devel/devel-spot-201601182021
git bisect bad 42f45a6fd95a0c4008e54aa74ac2ce3733f700d2 # 00:09 0- 27 0day head guard for 'devel-spot-201601182021'
# extra tests on tree/branch linus/master
git bisect good 5807fcaa9bf7dd87241df739161c119cf78a6bc4 # 00:31 57+ 2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
# extra tests on tree/branch linux-next/master
git bisect good 92704bdcd40fa10f4ec2d8a02d84d670d024c599 # 03:06 58+ 4 Add linux-next specific files for 20160118
This script may reproduce the error.
----------------------------------------------------------------------------
#!/bin/bash
kernel=$1
kvm=(
qemu-system-x86_64
-enable-kvm
-cpu Haswell,+smep,+smap
-kernel $kernel
-m 256
-smp 1
-device e1000,netdev=net0
-netdev user,id=net0
-boot order=nc
-no-reboot
-watchdog i6300esb
-rtc base=localtime
-serial stdio
-display none
-monitor null
)
append=(
hung_task_panic=1
earlyprintk=ttyS0,115200
systemd.log_level=err
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
console=ttyS0,115200
console=tty0
vga=normal
root=/dev/ram0
rw
drbd.minor_count=8
)
"${kvm[@]}" --append "${append[*]}"
----------------------------------------------------------------------------
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
4 years, 12 months
[vhost] b937c62c55: BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
by kernel test robot
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
https://github.com/0day-ci/linux Jason-Wang/vhost-convert-pre-sorted-vhost-memory-array-to-interval-tree/20160118-104455
commit b937c62c5511bb5d51399b2cc42c53408d05918c
Author: Jason Wang <jasowang(a)redhat.com>
AuthorDate: Mon Jan 18 10:42:29 2016 +0800
Commit: 0day robot <fengguang.wu(a)intel.com>
CommitDate: Mon Jan 18 10:44:56 2016 +0800
vhost: convert pre sorted vhost memory array to interval tree
Current pre-sorted memory region array has some limitations for future
device IOTLB conversion:
1) need extra work for adding and removing a single region, and it's
expected to be slow because of sorting or memory re-allocation.
2) need extra work of removing a large range which may intersect
several regions with different size.
3) need trick for a replacement policy like LRU
To overcome the above shortcomings, this patch convert it to interval
tree which can easily address the above issue with almost no extra
work.
The patch could be used for:
- Extend the current API and only let the userspace to send diffs of
memory table.
- Simplify Device IOTLB implementation.
Signed-off-by: Jason Wang <jasowang(a)redhat.com>
+------------------------------------------------+------------+------------+------------+
| | 43e361f23c | b937c62c55 | 4fb54bf3b0 |
+------------------------------------------------+------------+------------+------------+
| boot_successes | 1922 | 900 | 55 |
| boot_failures | 2 | 14 | 2 |
| IP-Config:Auto-configuration_of_network_failed | 2 | 2 | |
| BUG:unable_to_handle_kernel | 0 | 11 | 2 |
| Oops | 0 | 12 | 2 |
| RIP:vhost_umem_clean | 0 | 12 | 2 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 12 | 2 |
| backtrace:do_group_exit | 0 | 11 | 2 |
| backtrace:SyS_exit_group | 0 | 11 | 2 |
+------------------------------------------------+------------+------------+------------+
[main] Random reseed: 993968564
[child0:406] uid changed! Was: 0, now 9241465
Bailing main loop. Exit reason: UID changed.
[ 36.163817] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
[ 36.165793] IP: [<ffffffff882512b2>] vhost_umem_clean+0x12/0x90
[ 36.167234] PGD 0
[ 36.167768] Oops: 0000 [#1] DEBUG_PAGEALLOC
[ 36.168859] CPU: 0 PID: 397 Comm: trinity-main Not tainted 4.4.0-00045-gb937c62 #1
[ 36.170647] task: ffff8800065ee000 ti: ffff8800001f4000 task.ti: ffff8800001f4000
[ 36.172372] RIP: 0010:[<ffffffff882512b2>] [<ffffffff882512b2>] vhost_umem_clean+0x12/0x90
[ 36.174340] RSP: 0018:ffff8800001f7db0 EFLAGS: 00010246
[ 36.175600] RAX: ffff8800039397a0 RBX: ffff880003940000 RCX: 0000000000000000
[ 36.177308] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff880003940000
[ 36.178987] RBP: ffff8800001f7dd0 R08: 0000000000000000 R09: 0000000000000002
[ 36.180704] R10: 0000000000000001 R11: 0000000000000000 R12: ffff880003944320
[ 36.182398] R13: 0000000000000000 R14: ffff88000be334a0 R15: ffff880006812bd8
[ 36.184082] FS: 0000000000000000(0000) GS:ffffffff88ce0000(0000) knlGS:0000000000000000
[ 36.185997] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 36.187404] CR2: 0000000000000008 CR3: 0000000000c18000 CR4: 00000000000006b0
[ 36.189119] DR0: 00000000008cb760 DR1: 0000000000000000 DR2: 0000000000000000
[ 36.190813] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000000000d0602
[ 36.192506] Stack:
[ 36.193001] ffff880003940000 ffff880003944320 0000000000000002 ffff88000be334a0
[ 36.194861] ffff8800001f7df8 ffffffff882520b1 ffff880003940000 0000000000000000
[ 36.196720] 0000000000000000 ffff8800001f7e20 ffffffff8824f1fe ffff880003832800
[ 36.198578] Call Trace:
[ 36.199205] [<ffffffff882520b1>] vhost_dev_cleanup+0x261/0x2d0
[ 36.200614] [<ffffffff8824f1fe>] vhost_net_release+0x4e/0xa0
[ 36.202002] [<ffffffff877ad302>] __fput+0xb2/0x1f0
[ 36.203166] [<ffffffff877ad479>] ____fput+0x9/0x10
[ 36.204343] [<ffffffff876f3207>] task_work_run+0x67/0xa0
[ 36.205645] [<ffffffff876dc0ca>] do_exit+0x31a/0xa30
[ 36.206839] [<ffffffff87668258>] ? __do_page_fault+0x168/0x390
[ 36.208218] [<ffffffff876dc85f>] do_group_exit+0x3f/0xc0
[ 36.209506] [<ffffffff876dc8ef>] SyS_exit_group+0xf/0x10
[ 36.210772] [<ffffffff8855f233>] entry_SYSCALL_64_fastpath+0x16/0x7a
[ 36.212300] Code: ff 48 89 16 c3 48 89 50 10 e9 dd fe ff ff 90 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 41 55 41 54 53 4c 8b af f8 00 00 00 <49> 8b 45 08 4d 8d 75 08 48 8b 08 49 39 c6 48 8d 58 e8 4c 8d 61
[ 36.219481] RIP [<ffffffff882512b2>] vhost_umem_clean+0x12/0x90
[ 36.220966] RSP <ffff8800001f7db0>
[ 36.221824] CR2: 0000000000000008
[ 36.222625] ---[ end trace 9ea84058fb0759d9 ]---
[ 36.223727] Kernel panic - not syncing: Fatal exception
git bisect start 4fb54bf3b0498469cfdbc6f34e1787605c615013 afd2ff9b7e1b367172f18ba7f693dfb62bdcb2dc --
git bisect bad 3123b03caf8209938205d949ecdd75f84f980e1f # 18:18 0- 4 Merge 'linux-review/Dave-Airlie/drm-vc4-fix-warning-in-validate-printf/20160118-071409' into devel-spot-201601181432
git bisect bad d5bec4d7f540f345301547ad6d1a9c834c20dda2 # 18:18 0- 7 Merge 'linux-review/Dmitry-Torokhov/driver-core-platform-automatically-mark-wakeup-devices/20160118-101526' into devel-spot-201601181432
git bisect good d2364eb1ff759ecc105760ebce888bf20b50cd9f # 18:38 909+ 4 Merge 'ntb/ntb' into devel-spot-201601181432
git bisect good 2dc949a490f290ff32e091cf7bc945b03a2b3309 # 18:53 909+ 0 Merge 'linux-review/Nicolas-Boichat/ALSA-pcm-Fix-snd_pcm_hw_params-struct-copy-in-compat-mode/20160118-115120' into devel-spot-201601181432
git bisect bad 4ead902d00b5b5d3481e67921d51a94dd2cb756b # 19:00 80- 1 Merge 'linux-review/Jason-Wang/vhost-convert-pre-sorted-vhost-memory-array-to-interval-tree/20160118-104455' into devel-spot-201601181432
git bisect good 90a3ccb0be538a914e6a5c51ae919762261563ad # 19:24 910+ 2 sh: define __smp_xxx, fix smp_store_mb for !SMP
git bisect good 5bb0c9be2ac9a98513d43969e2b5c3d02cb271c8 # 19:36 910+ 0 xenbus: use virt_xxx barriers
git bisect good 21ea9fb69e7c4b1b1559c3e410943d3ff248ffcb # 19:53 910+ 0 virtio_balloon: fix race between migration and ballooning
git bisect good f4073b0f6e11a5436d1162c623401c8f2f7cf783 # 20:09 910+ 2 checkpatch: check for __smp outside barrier.h
git bisect bad b937c62c5511bb5d51399b2cc42c53408d05918c # 20:15 0- 1 vhost: convert pre sorted vhost memory array to interval tree
git bisect good 43e361f23c49dbddf74f56ddf6cdd85c5dbff6da # 20:29 910+ 2 checkpatch: add virt barriers
# first bad commit: [b937c62c5511bb5d51399b2cc42c53408d05918c] vhost: convert pre sorted vhost memory array to interval tree
git bisect good 43e361f23c49dbddf74f56ddf6cdd85c5dbff6da # 20:40 1010+ 2 checkpatch: add virt barriers
# extra tests with DEBUG_INFO
git bisect bad b937c62c5511bb5d51399b2cc42c53408d05918c # 20:53 1- 2 vhost: convert pre sorted vhost memory array to interval tree
# extra tests on HEAD of linux-devel/devel-spot-201601181432
git bisect bad 4fb54bf3b0498469cfdbc6f34e1787605c615013 # 20:53 0- 2 0day head guard for 'devel-spot-201601181432'
# extra tests on tree/branch linux-review/Jason-Wang/vhost-convert-pre-sorted-vhost-memory-array-to-interval-tree/20160118-104455
git bisect bad b937c62c5511bb5d51399b2cc42c53408d05918c # 20:58 0- 14 vhost: convert pre sorted vhost memory array to interval tree
# extra tests with first bad commit reverted
git bisect good 56650784f2c748406f3b4bea931ae846796a94e5 # 21:20 1010+ 4 Revert "vhost: convert pre sorted vhost memory array to interval tree"
# extra tests on tree/branch linus/master
git bisect good 5807fcaa9bf7dd87241df739161c119cf78a6bc4 # 21:33 1006+ 6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
# extra tests on tree/branch linux-next/master
git bisect good 92704bdcd40fa10f4ec2d8a02d84d670d024c599 # 21:51 1010+ 6 Add linux-next specific files for 20160118
This script may reproduce the error.
----------------------------------------------------------------------------
#!/bin/bash
kernel=$1
initrd=quantal-core-x86_64.cgz
wget --no-clobber https://github.com/fengguang/reproduce-kernel-bug/raw/master/initrd/$initrd
kvm=(
qemu-system-x86_64
-enable-kvm
-cpu kvm64
-kernel $kernel
-initrd $initrd
-m 300
-smp 2
-device e1000,netdev=net0
-netdev user,id=net0
-boot order=nc
-no-reboot
-watchdog i6300esb
-rtc base=localtime
-serial stdio
-display none
-monitor null
)
append=(
hung_task_panic=1
earlyprintk=ttyS0,115200
systemd.log_level=err
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
console=ttyS0,115200
console=tty0
vga=normal
root=/dev/ram0
rw
drbd.minor_count=8
)
"${kvm[@]}" --append "${append[*]}"
----------------------------------------------------------------------------
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
4 years, 12 months
