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Date: Fri, 14 Dec 2018 16:31:36 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Matthew Wilcox <willy@...radead.org>
Cc: LKML <linux-kernel@...r.kernel.org>,
Linus Torvalds <torvalds@...ux-foundation.org>, lkp@...org
Subject: [LKP] [xarray] 93eb07f72c: RIP:__sanitizer_cov_trace_pc
FYI, we noticed the following commit (built with gcc-7):
commit: 93eb07f72c8d86f8fe5e90907df1cc037f6ffbb7 ("xarray: Move multiorder_shrink to kernel tests")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
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 -smp 2 -m 768M
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+---------------------------------------------------------+------------+------------+
| | d6427f8179 | 93eb07f72c |
+---------------------------------------------------------+------------+------------+
| boot_successes | 0 | 0 |
| boot_failures | 80 | 94 |
| WARNING:at_mm/slab_common.c:#kmalloc_slab | 80 | 94 |
| RIP:kmalloc_slab | 80 | 94 |
| Mem-Info | 80 | 94 |
| invoked_oom-killer:gfp_mask=0x | 65 | 52 |
| Out_of_memory_and_no_killable_processes | 63 | 52 |
| Kernel_panic-not_syncing:System_is_deadlocked_on_memory | 63 | 52 |
| BUG:soft_lockup-CPU##stuck_for#s | 2 | 34 |
| RIP:native_flush_tlb_global | 1 | |
| Kernel_panic-not_syncing:softlockup:hung_tasks | 2 | 34 |
| RIP:lock_acquire | 1 | 4 |
| RIP:poison_obj | 0 | 1 |
| RIP:__sanitizer_cov_trace_pc | 0 | 21 |
| RIP:lock_release | 0 | 2 |
| RIP:ftrace_likely_update | 0 | 2 |
| RIP:check_xa_mark_1 | 0 | 1 |
| RIP:kmem_cache_alloc | 0 | 1 |
| RIP:xas_find | 0 | 2 |
| INFO:task_blocked_for_more_than#seconds | 0 | 2 |
+---------------------------------------------------------+------------+------------+
[ 105.288689] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1]
[ 105.288689] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 4.19.0-rc5-00319-g93eb07f #1
[ 105.288689] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 105.288689] RIP: 0010:__sanitizer_cov_trace_pc+0x54/0x86
[ 105.288689] Code: 7e 81 e2 00 01 1f 00 75 1a 48 ff 05 32 07 e9 03 8b 81 a0 23 00 00 83 f8 02 0f 94 c0 48 ff 05 27 07 e9 03 48 ff 05 40 07 e9 03 <84> c0 74 2d 48 8b 91 a8 23 00 00 8b 89 a4 23 00 00 48 8b 02 48 ff
[ 105.288689] RSP: 0000:ffff88002cb07d90 EFLAGS: 00000207 ORIG_RAX: ffffffffffffff13
[ 105.288689] RAX: 0000000000000000 RBX: ffff88002cb07e08 RCX: ffff88002cb00040
[ 105.288689] RDX: 0000000000000000 RSI: ffffffff824eccbe RDI: ffff88002cb07e08
[ 105.288689] RBP: 000000000000003f R08: 0000000000000000 R09: 0000000000000000
[ 105.317811] R10: ffff88002cb07b38 R11: 0000000000000020 R12: ffffffffffffffff
[ 105.317811] R13: ffffffff83cd2358 R14: 0000000000000000 R15: ffff880000ce1db0
[ 105.321794] FS: 0000000000000000(0000) GS:ffff88002ce00000(0000) knlGS:0000000000000000
[ 105.321794] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 105.321794] CR2: 0000000000000000 CR3: 000000000346a000 CR4: 00000000000406b0
[ 105.325769] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 105.325769] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 105.325769] Call Trace:
[ 105.325769] xas_move_index+0xd/0x36
[ 105.329763] xas_advance+0x28/0x31
[ 105.329763] xas_find+0x282/0x2d9
[ 105.329763] check_xa_mark_1+0x9ad/0xf6a
[ 105.329763] ? check_xa_alloc+0x55d/0x55d
[ 105.333763] check_xa_mark+0x1b/0x45
[ 105.333763] xarray_checks+0x36/0x154
[ 105.333763] do_one_initcall+0x282/0x619
[ 105.333763] ? ftrace_likely_update+0x27a/0x2aa
[ 105.333763] kernel_init_freeable+0x646/0x783
[ 105.337780] ? rest_init+0x1d4/0x1d4
[ 105.337780] kernel_init+0x12/0x21f
[ 105.337780] ? rest_init+0x1d4/0x1d4
[ 105.337780] ret_from_fork+0x24/0x30
[ 105.337780] Kernel panic - not syncing: softlockup: hung tasks
[ 105.341753] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W L 4.19.0-rc5-00319-g93eb07f #1
[ 105.353765] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 105.353765] Call Trace:
[ 105.357769] <IRQ>
[ 105.357769] dump_stack+0x12d/0x1b9
[ 105.357769] panic+0x165/0x430
[ 105.357769] ? watchdog_timer_fn+0x3b1/0x403
[ 105.357769] watchdog_timer_fn+0x3c4/0x403
[ 105.361763] ? softlockup_fn+0x4d/0x4d
[ 105.361763] __hrtimer_run_queues+0x5e7/0x948
[ 105.361763] hrtimer_interrupt+0x173/0x341
[ 105.361763] smp_apic_timer_interrupt+0x275/0x472
[ 105.365834] apic_timer_interrupt+0xf/0x20
[ 105.365834] </IRQ>
[ 105.365834] RIP: 0010:__sanitizer_cov_trace_pc+0x54/0x86
[ 105.365834] Code: 7e 81 e2 00 01 1f 00 75 1a 48 ff 05 32 07 e9 03 8b 81 a0 23 00 00 83 f8 02 0f 94 c0 48 ff 05 27 07 e9 03 48 ff 05 40 07 e9 03 <84> c0 74 2d 48 8b 91 a8 23 00 00 8b 89 a4 23 00 00 48 8b 02 48 ff
[ 105.369756] RSP: 0000:ffff88002cb07d90 EFLAGS: 00000207 ORIG_RAX: ffffffffffffff13
[ 105.369756] RAX: 0000000000000000 RBX: ffff88002cb07e08 RCX: ffff88002cb00040
[ 105.373756] RDX: 0000000000000000 RSI: ffffffff824eccbe RDI: ffff88002cb07e08
[ 105.373756] RBP: 000000000000003f R08: 0000000000000000 R09: 0000000000000000
[ 105.373756] R10: ffff88002cb07b38 R11: 0000000000000020 R12: ffffffffffffffff
[ 105.377758] R13: ffffffff83cd2358 R14: 0000000000000000 R15: ffff880000ce1db0
[ 105.377758] ? xas_move_index+0xd/0x36
[ 105.377758] xas_move_index+0xd/0x36
[ 105.381757] xas_advance+0x28/0x31
[ 105.381757] xas_find+0x282/0x2d9
[ 105.381757] check_xa_mark_1+0x9ad/0xf6a
[ 105.381757] ? check_xa_alloc+0x55d/0x55d
[ 105.381757] check_xa_mark+0x1b/0x45
[ 105.385751] xarray_checks+0x36/0x154
[ 105.385751] do_one_initcall+0x282/0x619
[ 105.385751] ? ftrace_likely_update+0x27a/0x2aa
[ 105.385751] kernel_init_freeable+0x646/0x783
[ 105.385751] ? rest_init+0x1d4/0x1d4
[ 105.389739] kernel_init+0x12/0x21f
[ 105.389739] ? rest_init+0x1d4/0x1d4
[ 105.389739] ret_from_fork+0x24/0x30
[ 105.389739] Kernel Offset: disabled
Elapsed time: 110
#!/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=$1
initrds=(
/osimage/quantal/quantal-core-x86_64-2018-11-09.cgz
/lkp/lkp/lkp-x86_64.cgz
/osimage/pkg/debian-x86_64-2016-08-31.cgz/trinity-static-x86_64-x86_64-6ddabfd2_2017-11-10.cgz
)
HTTP_PREFIX=https://download.01.org/0day-ci/lkp-qemu
wget --timestamping "${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-snb-quantal-x86_64-11-0 256G
qemu-img create -f qcow2 disk-vm-snb-quantal-x86_64-11-1 256G
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
View attachment "config-4.19.0-rc5-00319-g93eb07f" of type "text/plain" (99748 bytes)
View attachment "job-script" of type "text/plain" (4107 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (14172 bytes)
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