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Date: Mon, 5 Sep 2016 09:18:38 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Jens Axboe <axboe@...com>
Cc: LKML <linux-kernel@...r.kernel.org>, Jens Axboe <axboe@...com>,
Jens Axboe <axboe@...nel.dk>, lkp@...org
Subject: [lkp] [blk] fb205598f2: general protection fault: 0000 [#1] SMP
FYI, we noticed the following commit:
https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git blk-dio
commit fb205598f24363aae7b7e4bbb6c95cecc7c0d821 ("blk-mq: private O_DIRECT implementation")
in testcase: boot
on test machine: qemu-system-x86_64 -enable-kvm -cpu host -smp 2 -m 4G
caused below changes:
+----------------------------------------------------------------------------------------+------------+------------+
| | f31494bd05 | fb205598f2 |
+----------------------------------------------------------------------------------------+------------+------------+
| boot_successes | 879 | 494 |
| boot_failures | 189 | 598 |
| BUG:kernel_early-boot_hang_Unable_to_boot-please_use_a_kernel_appropriate_for_your_CPU | 12 | |
| BUG:kernel_reboot-without-warning_in_test_stage | 150 | 237 |
| calltrace:SyS_write | 1 | 9 |
| BUG:kernel_early-boot_hang | 8 | |
| WARNING:at_kernel/trace/ftrace.c:#ftrace_bug | 19 | |
| backtrace:perf_ftrace_event_register | 19 | |
| backtrace:perf_trace_init | 19 | |
| backtrace:perf_tp_event_init | 19 | |
| backtrace:perf_try_init_event | 19 | |
| backtrace:perf_event_alloc | 19 | |
| backtrace:SyS_perf_event_open | 19 | |
| BUG:unable_to_handle_kernel | 0 | 237 |
| Oops | 0 | 238 |
| RIP:blk_update_request | 0 | 169 |
| calltrace:SyS_epoll_wait | 0 | 25 |
| Kernel_panic-not_syncing:Fatal_exception_in_interrupt | 0 | 361 |
| RIP:__blk_recalc_rq_segments | 0 | 77 |
| calltrace:SyS_newfstat | 0 | 13 |
| kernel_BUG_at_block/blk-mq.c | 0 | 111 |
| invalid_opcode:#[##]SMP | 0 | 111 |
| RIP:blk_mq_end_request | 0 | 111 |
| calltrace:SyS_ioctl | 0 | 24 |
| calltrace:SyS_lseek | 0 | 24 |
| calltrace:SyS_read | 0 | 80 |
| general_protection_fault:#[##]SMP | 0 | 12 |
| calltrace:SyS_recvmsg | 0 | 9 |
| calltrace:smpboot_thread_fn | 0 | 1 |
| calltrace:schedule_timeout | 0 | 2 |
| RIP:bio_advance | 0 | 1 |
| calltrace:SyS_open | 0 | 2 |
| calltrace:SyS_ppoll | 0 | 1 |
| RIP:blk_account_io_completion | 0 | 1 |
| calltrace:prepare_to_swait_event | 0 | 1 |
| calltrace:SyS_close | 0 | 2 |
+----------------------------------------------------------------------------------------+------------+------------+
[ 69.317126] systemd-udevd[2082]: starting version 215
Starting Copy rules generated while the root was ro...
Starting LSB: MD array assembly...
[ 69.696600] general protection fault: 0000 [#1] SMP
[ 69.712484] Modules linked in:
[ 69.726192] CPU: 0 PID: 2096 Comm: mdadm Not tainted 4.8.0-rc1-00242-gfb20559 #1
[ 69.752666] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[ 69.781474] task: ffff880113868cc0 task.stack: ffff88011468c000
[ 69.798806] RIP: 0010:[<ffffffff814d2cc7>] [<ffffffff814d2cc7>] blk_update_request+0x275/0x2a6
[ 69.828338] RSP: 0000:ffff88013fc03ee0 EFLAGS: 00010006
[ 69.844799] RAX: ffff88011462d900 RBX: ffff880114d50000 RCX: 0001000000000000
[ 69.864041] RDX: 0000000000000825 RSI: 0000000000000000 RDI: ffff88011462d500
[ 69.883582] RBP: ffff88013fc03f10 R08: 00000000000087d0 R09: 0000000000000000
[ 69.902994] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
[ 69.922345] R13: 0000000000000008 R14: 0000000000000000 R15: 0000000000001000
[ 69.942111] FS: 00007f473842f700(0000) GS:ffff88013fc00000(0000) knlGS:0000000000000000
[ 69.969853] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 69.986867] CR2: 0000000001d7dbf8 CR3: 000000012e4f9000 CR4: 00000000000006f0
[ 70.006304] Stack:
[ 70.017161] ffff88011462d500 ffff880114d50000 0000000000000000 ffff880114d50000
[ 70.047531] ffffffff81eac5db 0000000000000000 ffff88013fc03f30 ffffffff814dadcd
[ 70.078150] ffff880114d50010 ffffffff814d9aa6 ffff88013fc03f40 ffffffff815de10f
[ 70.108775] Call Trace:
[ 70.120410] <IRQ>
[ 70.124784] [<ffffffff814dadcd>] blk_mq_end_request+0x1a/0x5c
[ 70.149863] [<ffffffff814d9aa6>] ? __blk_mq_end_request+0x44/0x44
[ 70.167817] [<ffffffff815de10f>] virtblk_request_done+0x5e/0x60
[ 70.185409] [<ffffffff814d9ab9>] __blk_mq_complete_request_remote+0x13/0x15
[ 70.204954] [<ffffffff8116dcee>] flush_smp_call_function_queue+0xcd/0x13e
[ 70.224015] [<ffffffff8116e58f>] generic_smp_call_function_single_interrupt+0x13/0x4a
[ 70.263316] [<ffffffff81078f51>] smp_call_function_single_interrupt+0x27/0x35
[ 70.289465] [<ffffffff81ab378c>] call_function_single_interrupt+0x8c/0xa0
[ 70.308366] <EOI>
[ 70.312603] Code: 4f 49 8b 7d 08 44 89 f1 48 89 da 4c 89 fe 41 ff 55 00 49 83 c5 18 49 83 7d 00 00 e9 e4 fd ff ff 8b 48 2c 48 c1 e1 04 48 03 48 78 <8b> 49 08 2b 48 30 39 ca 0f 47 d1 eb 8a 8b 4a 2c 48 c1 e1 04 48
[ 70.438340] RIP [<ffffffff814d2cc7>] blk_update_request+0x275/0x2a6
[ 70.457494] RSP <ffff88013fc03ee0>
[ 70.470915] ---[ end trace b4db690ab7dba899 ]---
[ 70.486372] Kernel panic - not syncing: Fatal exception in interrupt
Thanks,
Xiaolong
View attachment "config-4.8.0-rc1-00242-gfb20559" of type "text/plain" (98226 bytes)
Download attachment "dmesg.xz" of type "application/octet-stream" (17068 bytes)
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