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Date: Tue, 11 Aug 2020 08:33:47 +0800
From: kernel test robot <lkp@...el.com>
To: Eelco Chaudron <echaudro@...hat.com>
Cc: "David S. Miller" <davem@...emloft.net>, Paolo <pabeni@...hat.com>,
LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org
Subject: [net] a65878d6f0: Oops:#[##]
Greeting,
FYI, we noticed the following commit (built with gcc-9):
commit: a65878d6f00bb2d791348ae90dcc2ede1dbe2b91 ("net: openvswitch: fixes potential deadlock in dp cleanup code")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: boot
on test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+-------------------------------------------------------+------------+------------+
| | dfd3d5266d | a65878d6f0 |
+-------------------------------------------------------+------------+------------+
| boot_successes | 147 | 0 |
| boot_failures | 1 | 148 |
| BUG:kernel_hang_in_test_stage | 1 | |
| BUG:kernel_NULL_pointer_dereference,address | 0 | 134 |
| Oops:#[##] | 0 | 142 |
| EIP:_raw_spin_unlock_irqrestore | 0 | 5 |
| Kernel_panic-not_syncing:Fatal_exception_in_interrupt | 0 | 147 |
| EIP:ring_buffer_event_data | 0 | 1 |
| EIP:__rb_reserve_next | 0 | 5 |
| EIP:ring_buffer_consume | 0 | 21 |
| EIP:sched_clock | 0 | 1 |
| EIP:trace_preempt_off | 0 | 1 |
| EIP:__slab_alloc | 0 | 6 |
| EIP:ftrace_likely_update | 0 | 9 |
| BUG:workqueue_lockup-pool | 0 | 1 |
| INFO:trying_to_register_non-static_key | 0 | 20 |
| EIP:ring_buffer_unlock_commit | 0 | 4 |
| PANIC:double_fault | 0 | 1 |
| double_fault:#[##] | 0 | 1 |
| EIP:fib_info_devhash | 0 | 1 |
| EIP:ring_buffer_lock_reserve | 0 | 9 |
| EIP:preempt_schedule_irq | 0 | 2 |
| EIP:rcutorture_one_extend | 0 | 8 |
| EIP:rb_commit | 0 | 3 |
| EIP:lock_acquire | 0 | 5 |
| EIP:default_idle | 0 | 7 |
| EIP:tracer_preempt_on | 0 | 2 |
| EIP:rb_move_tail | 0 | 1 |
| EIP:debug_check_no_locks_freed | 0 | 1 |
| EIP:lock_release | 0 | 1 |
| BUG:unable_to_handle_page_fault_for_address | 0 | 7 |
| EIP:run_timer_softirq | 0 | 2 |
| EIP:__local_bh_enable_ip | 0 | 2 |
| EIP:lock_is_held_type | 0 | 2 |
| EIP:___might_sleep | 0 | 1 |
| EIP:ring_buffer_consumer | 0 | 2 |
| EIP:kvm_sched_clock_read | 0 | 1 |
| EIP:rcutorture_extend_mask_max | 0 | 1 |
| EIP:__mutex_lock | 0 | 1 |
| EIP:delay_tsc | 0 | 6 |
| EIP:preempt_count_add | 0 | 1 |
| EIP:__func | 0 | 3 |
| EIP:rcutorture_extend_mask | 0 | 1 |
| EIP:__up_read | 0 | 1 |
| EIP:preempt_count_sub | 0 | 1 |
| EIP:pvclock_clocksource_read | 0 | 1 |
| invalid_opcode:#[##] | 0 | 2 |
| EIP:security_file_permission | 0 | 1 |
| EIP:trace_preempt_on | 0 | 1 |
| EIP:schedule | 0 | 1 |
+-------------------------------------------------------+------------+------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <lkp@...el.com>
LKP: HOSTNAME vm-snb-i386-97, MAC 52:54:00:12:34:56, kernel 5.8.0-rc4-01973-ga65878d6f00bb 1, serial console /dev/ttyS0
Poky (Yocto Project Reference Distro) 2.7+snapshot vm-snb-i386-97 /dev/ttyS0
[ 18.202172] #PF: supervisor read access in kernel mode
[ 18.203388] #PF: error_code(0x0000) - not-present page
[ 18.204682] *pde = 00000000
[ 18.205509] Oops: 0000 [#1] PREEMPT SMP
[ 18.206528] CPU: 1 PID: 150 Comm: rb_consumer Tainted: G S 5.8.0-rc4-01973-ga65878d6f00bb #1
[ 18.208725] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 18.210554] EIP: 0xf3421ccc
[ 18.211343] Code: 42 f3 68 1c 42 f3 d0 c2 e0 c4 40 97 69 c4 00 00 00 00 8e f1 9f c3 00 00 03 00 01 00 00 00 56 48 cc c1 00 00 00 00 00 00 00 00 <ad> 4e ad de ff ff ff ff ff ff ff ff 68 42 e0 c4 40 65 69 c4 00 00
[ 18.215301] EAX: f0a4f960 EBX: 00000101 ECX: 00000000 EDX: 00000000
[ 18.216751] ESI: 00000000 EDI: f3421cc8 EBP: f38d7f74 ESP: f38d7f38
[ 18.218188] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010086
[ 18.225566] CR0: 80050033 CR2: 00000000 CR3: 2f670000 CR4: 00040690
[ 18.226822] Call Trace:
[ 18.227402] <SOFTIRQ>
[ 18.227972] ? call_timer_fn+0x99/0x440
[ 18.228782] run_timer_softirq+0x109/0x680
[ 18.229752] __do_softirq+0xac/0x5b4
[ 18.230601] ? __entry_text_end+0x3/0x3
[ 18.231565] do_softirq_own_stack+0x1d/0x40
[ 18.232587] </SOFTIRQ>
[ 18.233253] irq_exit_rcu+0xcd/0xe0
[ 18.234141] sysvec_apic_timer_interrupt+0x66/0x120
[ 18.235185] ? sysvec_call_function_single+0x120/0x120
[ 18.236297] handle_exception+0x135/0x135
[ 18.237231] EIP: ring_buffer_consume+0x151/0x1e0
[ 18.238336] Code: 08 ec c3 b9 01 00 00 00 e8 6c 6f 01 00 5a 89 f8 e8 44 8a c1 01 8b 45 f0 f6 c4 02 0f 84 e8 fe ff ff e8 73 41 01 00 ff 75 f0 9d <e9> e1 fe ff ff 66 90 8d 65 f4 89 f0 5b 5e 5f 5d c3 8d b6 00 00 00
[ 18.258562] EAX: 0055ff2d EBX: f260e200 ECX: 00000000 EDX: 00000000
[ 18.260031] ESI: 00000000 EDI: f260e210 EBP: f15bdf48 ESP: f15bdf24
[ 18.261478] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00000247
[ 18.262930] ? sysvec_call_function_single+0x120/0x120
[ 18.264142] ? sysvec_call_function_single+0x120/0x120
[ 18.265348] ? ring_buffer_consume+0x151/0x1e0
[ 18.266378] ring_buffer_consumer+0x44/0x580
[ 18.267409] ? ring_buffer_consumer+0x580/0x580
[ 18.268544] ring_buffer_consumer_thread+0xb7/0x140
[ 18.269683] kthread+0x188/0x1c0
[ 18.270519] ? ring_buffer_consumer+0x580/0x580
[ 18.271647] ? kthread_create_worker_on_cpu+0x20/0x20
[ 18.272782] ret_from_fork+0x19/0x30
[ 18.277955] Modules linked in:
[ 18.278690] CR2: 0000000000000000
[ 18.279490] ---[ end trace 02ab0044d3923ac9 ]---
[ 18.280665] EIP: 0xf3421ccc
[ 18.281431] Code: 42 f3 68 1c 42 f3 d0 c2 e0 c4 40 97 69 c4 00 00 00 00 8e f1 9f c3 00 00 03 00 01 00 00 00 56 48 cc c1 00 00 00 00 00 00 00 00 <ad> 4e ad de ff ff ff ff ff ff ff ff 68 42 e0 c4 40 65 69 c4 00 00
[ 18.290358] EAX: f0a4f960 EBX: 00000101 ECX: 00000000 EDX: 00000000
[ 18.291605] ESI: 00000000 EDI: f3421cc8 EBP: f38d7f74 ESP: f38d7f38
[ 18.292810] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010086
[ 18.294077] CR0: 80050033 CR2: 00000000 CR3: 2f670000 CR4: 00040690
[ 18.295259] Kernel panic - not syncing: Fatal exception in interrupt
[ 18.296516] Kernel Offset: disabled
Elapsed time: 60
qemu-img create -f qcow2 disk-vm-snb-i386-97-0 256G
To reproduce:
# build kernel
cd linux
cp config-5.8.0-rc4-01973-ga65878d6f00bb .config
make HOSTCC=gcc-9 CC=gcc-9 ARCH=i386 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,
lkp
View attachment "config-5.8.0-rc4-01973-ga65878d6f00bb" of type "text/plain" (133178 bytes)
View attachment "job-script" of type "text/plain" (4699 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (19308 bytes)
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