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Message-ID: <20201214145834.GI67148@shao2-debian>
Date: Mon, 14 Dec 2020 22:58:34 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Willem de Bruijn <willemb@...gle.com>
Cc: Stephen Rothwell <sfr@...b.auug.org.au>,
Al Viro <viro@...iv.linux.org.uk>,
Arnd Bergmann <arnd@...db.de>,
Matthew Wilcox <willy@...radead.org>,
Andrew Morton <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>,
Linux Memory Management List <linux-mm@...ck.org>,
lkp@...ts.01.org, lkp@...el.com
Subject: [epoll] fb72873666:
WARNING:at_kernel/tracepoint.c:#tracepoint_probe_register_prio
Greeting,
FYI, we noticed the following commit (built with gcc-9):
commit: fb728736669f7805bcc0fa1c4d578faf991d62a8 ("epoll: wire up syscall epoll_pwait2")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
in testcase: trinity
version: trinity-x86_64-af355e9-1_2019-12-03
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 8G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+----------------------------------------------------------------+------------+------------+
| | e659ea023d | fb72873666 |
+----------------------------------------------------------------+------------+------------+
| boot_successes | 11 | 0 |
| boot_failures | 0 | 12 |
| WARNING:at_kernel/tracepoint.c:#tracepoint_probe_register_prio | 0 | 10 |
| RIP:tracepoint_probe_register_prio | 0 | 10 |
| WARNING:at_kernel/locking/lockdep.c:#__lock_acquire | 0 | 2 |
| RIP:__lock_acquire | 0 | 2 |
| BUG:kernel_NULL_pointer_dereference,address | 0 | 2 |
| Oops:#[##] | 0 | 2 |
| Kernel_panic-not_syncing:Fatal_exception_in_interrupt | 0 | 2 |
+----------------------------------------------------------------+------------+------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <rong.a.chen@...el.com>
[ 147.820910] WARNING: CPU: 0 PID: 4088 at kernel/tracepoint.c:136 tracepoint_probe_register_prio+0x451/0x4c0
[ 147.822045] Modules linked in:
[ 147.822415] CPU: 0 PID: 4088 Comm: trinity-main Not tainted 5.10.0-rc7-13210-gfb728736669f #1
[ 147.823462] RIP: 0010:tracepoint_probe_register_prio+0x451/0x4c0
[ 147.824182] Code: ff ff e8 72 e3 0c 00 44 8b 4c 24 08 49 89 c7 e9 fb fd ff ff 41 bf f4 ff ff ff 45 31 e4 48 c7 c5 f4 ff ff ff e9 af fc ff ff 90 <0f> 0b 90 31 c9 31 d2 be 01 00 00 00 48 c7 c7 b8 b0 0c 84 e8 17 c9
[ 147.826276] RSP: 0018:ffff888160cc3d28 EFLAGS: 00010246
[ 147.826938] RAX: 0000000000000001 RBX: ffff888140c2a008 RCX: 0000000000000000
[ 147.827745] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff840cb0e8
[ 147.828556] RBP: ffff888140c2a550 R08: 0000000000000001 R09: 0000000000000000
[ 147.829382] R10: ffff888160cc3d28 R11: 0000000000000001 R12: 0000000000000000
[ 147.830209] R13: ffffffff84f5b6a0 R14: ffffffff8120aea9 R15: 0000000000000000
[ 147.831063] FS: 00007fc0af66a740(0000) GS:ffffffff838b2000(0000) knlGS:0000000000000000
[ 147.831998] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 147.832655] CR2: 00000000027d4058 CR3: 000000016040a000 CR4: 00000000000006b0
[ 147.833481] Call Trace:
[ 147.833817] ? perf_event_alloc+0x489/0x10c0
[ 147.834330] ? perf_trace_init+0x251/0x2a0
[ 147.834860] ? perf_tp_event_init+0x1b/0x40
[ 147.835343] ? perf_try_init_event+0x47/0x140
[ 147.835861] ? perf_event_alloc+0x46e/0x10c0
[ 147.836357] ? sched_clock_cpu+0xa0/0xc0
[ 147.836828] ? __do_sys_perf_event_open+0x127/0x1120
[ 147.837394] ? sched_clock+0x2b/0x40
[ 147.837824] ? sched_clock_cpu+0xa0/0xc0
[ 147.838274] ? do_syscall_64+0x53/0x100
[ 147.838726] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 147.839365] irq event stamp: 2133343
[ 147.839782] hardirqs last enabled at (2133351): [<ffffffff8111eec6>] console_unlock+0x486/0x5a0
[ 147.840804] hardirqs last disabled at (2133362): [<ffffffff8111ee10>] console_unlock+0x3d0/0x5a0
[ 147.841808] softirqs last enabled at (2133120): [<ffffffff82600386>] __do_softirq+0x386/0x47e
[ 147.842823] softirqs last disabled at (2133109): [<ffffffff82400ebf>] asm_call_irq_on_stack+0xf/0x20
[ 147.843952] ---[ end trace a41e09c8b1793541 ]---
To reproduce:
# build kernel
cd linux
cp config-5.10.0-rc7-13210-gfb728736669f .config
make HOSTCC=gcc-9 CC=gcc-9 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage
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-5.10.0-rc7-13210-gfb728736669f" of type "text/plain" (134666 bytes)
View attachment "job-script" of type "text/plain" (4317 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (20128 bytes)
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