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Date: Sat, 17 Mar 2018 15:51:19 +0800
From: kernel test robot <fengguang.wu@...el.com>
To: Laurent Dufour <ldufour@...ux.vnet.ibm.com>
Cc: paulmck@...ux.vnet.ibm.com, peterz@...radead.org,
akpm@...ux-foundation.org, kirill@...temov.name,
ak@...ux.intel.com, mhocko@...nel.org, dave@...olabs.net,
jack@...e.cz, Matthew Wilcox <willy@...radead.org>,
benh@...nel.crashing.org, mpe@...erman.id.au, paulus@...ba.org,
Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>, hpa@...or.com,
Will Deacon <will.deacon@....com>,
Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
Andrea Arcangeli <aarcange@...hat.com>,
Alexei Starovoitov <alexei.starovoitov@...il.com>,
kemi.wang@...el.com, sergey.senozhatsky.work@...il.com,
Daniel Jordan <daniel.m.jordan@...cle.com>,
linux-kernel@...r.kernel.org, linux-mm@...ck.org,
haren@...ux.vnet.ibm.com, khandual@...ux.vnet.ibm.com,
npiggin@...il.com, bsingharora@...il.com,
Tim Chen <tim.c.chen@...ux.intel.com>,
linuxppc-dev@...ts.ozlabs.org, x86@...nel.org, lkp@...org
Subject: [mm] b1f0502d04: INFO:trying_to_register_non-static_key
FYI, we noticed the following commit (built with gcc-7):
commit: b1f0502d04537ef55b0c296823affe332b100eb5 ("mm: VMA sequence count")
url: https://github.com/0day-ci/linux/commits/Laurent-Dufour/Speculative-page-faults/20180316-151833
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 512M
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+----------------------------------------+------------+------------+
| | 6a4ce82339 | b1f0502d04 |
+----------------------------------------+------------+------------+
| boot_successes | 8 | 4 |
| boot_failures | 0 | 4 |
| INFO:trying_to_register_non-static_key | 0 | 4 |
+----------------------------------------+------------+------------+
[ 22.212940] INFO: trying to register non-static key.
[ 22.213687] the code is fine but needs lockdep annotation.
[ 22.214459] turning off the locking correctness validator.
[ 22.227459] CPU: 0 PID: 547 Comm: trinity-main Not tainted 4.16.0-rc4-next-20180309-00007-gb1f0502 #239
[ 22.228904] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 22.230043] Call Trace:
[ 22.230409] dump_stack+0x5d/0x79
[ 22.231025] register_lock_class+0x226/0x45e
[ 22.231827] ? kvm_clock_read+0x21/0x30
[ 22.232544] ? kvm_sched_clock_read+0x5/0xd
[ 22.233330] __lock_acquire+0xa2/0x774
[ 22.234152] lock_acquire+0x4b/0x66
[ 22.234805] ? unmap_vmas+0x30/0x3d
[ 22.245680] unmap_page_range+0x56/0x48c
[ 22.248127] ? unmap_vmas+0x30/0x3d
[ 22.248741] ? lru_deactivate_file_fn+0x2c6/0x2c6
[ 22.249537] ? pagevec_lru_move_fn+0x9a/0xa9
[ 22.250244] unmap_vmas+0x30/0x3d
[ 22.250791] unmap_region+0xad/0x105
[ 22.251419] mmap_region+0x3cc/0x455
[ 22.252011] do_mmap+0x394/0x3e9
[ 22.261224] vm_mmap_pgoff+0x9c/0xe5
[ 22.261798] SyS_mmap_pgoff+0x19a/0x1d4
[ 22.262475] ? task_work_run+0x5e/0x9c
[ 22.263163] do_syscall_64+0x6d/0x103
[ 22.263814] entry_SYSCALL_64_after_hwframe+0x3d/0xa2
[ 22.264697] RIP: 0033:0x4573da
[ 22.267248] RSP: 002b:00007fffa22f1398 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
[ 22.274720] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00000000004573da
[ 22.276083] RDX: 0000000000000001 RSI: 0000000000001000 RDI: 0000000000000000
[ 22.277343] RBP: 000000000000001c R08: 000000000000001c R09: 0000000000000000
[ 22.278686] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
[ 22.279930] R13: 0000000000001000 R14: 0000000000000002 R15: 0000000000000000
[ 22.391866] trinity-main uses obsolete (PF_INET,SOCK_PACKET)
[ 327.566956] sysrq: SysRq : Emergency Sync
[ 327.567849] Emergency Sync complete
[ 327.569975] sysrq: SysRq : Resetting
Elapsed time: 330
#!/bin/bash
# To reproduce,
# 1) save job-script and this script (both are attached in 0day report email)
# 2) run this script with your compiled kernel and optional env $INSTALL_MOD_PATH
kernel=$1
initrds=(
/osimage/yocto/yocto-minimal-x86_64-2016-04-22.cgz
/lkp/lkp/lkp-x86_64.cgz
/osimage/pkg/debian-x86_64-2016-08-31.cgz/trinity-static-x86_64-x86_64-6ddabfd2_2017-11-10.cgz
)
HTTP_PREFIX=https://github.com/0day-ci/lkp-qemu/raw/master
wget --timestamping "${initrds[@]/#/$HTTP_PREFIX}"
{
cat "${initrds[@]//*\//}"
[[ $INSTALL_MOD_PATH ]] && (
cd "$INSTALL_MOD_PATH"
find lib | cpio -o -H newc --quiet | gzip
)
echo job-script | cpio -o -H newc --quiet | gzip
} > initrd.img
qemu-img create -f qcow2 disk-vm-kbuild-yocto-x86_64-62-0 256G
kvm=(
qemu-system-x86_64
-enable-kvm
-cpu SandyBridge
-kernel $kernel
-initrd initrd.img
-m 512
-smp 1
-device e1000,netdev=net0
-netdev user,id=net0
-boot order=nc
-no-reboot
-watchdog i6300esb
-watchdog-action debug
-rtc base=localtime
-drive file=disk-vm-kbuild-yocto-x86_64-62-0,media=disk,if=virtio
-serial stdio
-display none
-monitor null
)
append=(
ip=::::vm-kbuild-yocto-x86_64-62::dhcp
root=/dev/ram0
user=lkp
job=/job-script
ARCH=x86_64
kconfig=x86_64-acpi-redef
branch=linux-devel/devel-catchup-201803161558
commit=b1f0502d04537ef55b0c296823affe332b100eb5
BOOT_IMAGE=/pkg/linux/x86_64-acpi-redef/gcc-7/b1f0502d04537ef55b0c296823affe332b100eb5/vmlinuz-4.16.0-rc4-next-20180309-00007-gb1f0502
max_uptime=1500
RESULT_ROOT=/result/trinity/300s/vm-kbuild-yocto-x86_64/yocto-minimal-x86_64-2016-04-22.cgz/x86_64-acpi-redef/gcc-7/b1f0502d04537ef55b0c296823affe332b100eb5/0
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
View attachment "config-4.16.0-rc4-next-20180309-00007-gb1f0502" of type "text/plain" (125596 bytes)
View attachment "job-script" of type "text/plain" (3775 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (13744 bytes)
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