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Message-ID: <20170531063116.GD1795@yexl-desktop>
Date: Wed, 31 May 2017 14:31:16 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Josef Bacik <josef@...icpanda.com>
Cc: Stephen Rothwell <sfr@...b.auug.org.au>,
Josef Bacik <jbacik@...com>, Rik van Riel <riel@...hat.com>,
Johannes Weiner <hannes@...xchg.org>,
Andrew Morton <akpm@...ux-foundation.org>,
LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [lkp-robot] [mm] aefd950b83: divide_error:#[##]
FYI, we noticed the following commit:
commit: aefd950b83d2d8cf4d3c270546c8725f866da191 ("mm: make kswapd try harder to keep active pages in cache")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
in testcase: boot
on test machine: qemu-system-x86_64 -enable-kvm -smp 2 -m 512M
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+------------------------------------------------------------------+------------+------------+
| | 105b08acf6 | aefd950b83 |
+------------------------------------------------------------------+------------+------------+
| boot_successes | 75 | 68 |
| boot_failures | 9 | 24 |
| invoked_oom-killer:gfp_mask=0x | 9 | 5 |
| Mem-Info | 9 | 5 |
| Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 3 | 3 |
| Out_of_memory:Kill_process | 7 | 3 |
| divide_error:#[##] | 0 | 19 |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 10 |
+------------------------------------------------------------------+------------+------------+
[ 151.194498] LKP: waiting for network...
[ 151.194498] LKP: waiting for network...
[ 151.194505]
[ 151.194505]
[ 159.170597] sock: process `trinity-main' is using obsolete setsockopt SO_BSDCOMPAT
[ 160.541829] divide error: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
[ 160.543618] CPU: 1 PID: 54 Comm: kswapd0 Not tainted 4.12.0-rc2-00204-gaefd950 #1
[ 160.543618] CPU: 1 PID: 54 Comm: kswapd0 Not tainted 4.12.0-rc2-00204-gaefd950 #1
[ 160.546053] task: ffff880004d59400 task.stack: ffffc900001b8000
[ 160.546053] task: ffff880004d59400 task.stack: ffffc900001b8000
[ 160.547838] RIP: 0010:shrink_node+0x47f/0x5a0
[ 160.547838] RIP: 0010:shrink_node+0x47f/0x5a0
[ 160.549086] RSP: 0018:ffffc900001bbd78 EFLAGS: 00010246
[ 160.549086] RSP: 0018:ffffc900001bbd78 EFLAGS: 00010246
[ 160.550915] RAX: 0000000000000000 RBX: 000000000000005c RCX: 0000000000000000
[ 160.550915] RAX: 0000000000000000 RBX: 000000000000005c RCX: 0000000000000000
[ 160.553371] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000297
[ 160.553371] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000297
[ 160.556088] RBP: ffffc900001bbe18 R08: 0000000000000000 R09: 0000000000000000
[ 160.556088] RBP: ffffc900001bbe18 R08: 0000000000000000 R09: 0000000000000000
[ 160.558541] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000005c
[ 160.558541] R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000005c
[ 160.560970] R13: 0000000000000000 R14: ffffc900001bbe80 R15: ffffffffb67e0f40
[ 160.560970] R13: 0000000000000000 R14: ffffc900001bbe80 R15: ffffffffb67e0f40
[ 160.563643] FS: 0000000000000000(0000) GS:ffff880011b00000(0000) knlGS:0000000000000000
[ 160.563643] FS: 0000000000000000(0000) GS:ffff880011b00000(0000) knlGS:0000000000000000
[ 160.566587] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 160.566587] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 160.568660] CR2: 00007ff0c62176f0 CR3: 0000000005c41000 CR4: 00000000000006e0
[ 160.568660] CR2: 00007ff0c62176f0 CR3: 0000000005c41000 CR4: 00000000000006e0
[ 160.571164] Call Trace:
[ 160.571164] Call Trace:
[ 160.572027] kswapd+0x422/0xcd0
[ 160.572027] kswapd+0x422/0xcd0
[ 160.574580] kthread+0x134/0x180
[ 160.574580] kthread+0x134/0x180
[ 160.575703] ? mem_cgroup_shrink_node+0x4a0/0x4a0
[ 160.575703] ? mem_cgroup_shrink_node+0x4a0/0x4a0
[ 160.577327] ? __kthread_create_on_node+0x240/0x240
[ 160.577327] ? __kthread_create_on_node+0x240/0x240
[ 160.578999] ret_from_fork+0x31/0x40
[ 160.578999] ret_from_fork+0x31/0x40
[ 160.580240] Code: 7d a8 00 0f 85 c9 fe ff ff 41 80 7e 28 00 0f 89 be fe ff ff e8 73 e8 f5 ff 48 8b 45 90 31 d2 48 8d 04 80 48 8d 04 80 48 c1 e0 02 <48> f7 75 b8 48 83 f8 31 77 5f e8 52 e8 f5 ff 41 80 66 28 7f e9
[ 160.580240] Code: 7d a8 00 0f 85 c9 fe ff ff 41 80 7e 28 00 0f 89 be fe ff ff e8 73 e8 f5 ff 48 8b 45 90 31 d2 48 8d 04 80 48 8d 04 80 48 c1 e0 02 <48> f7 75 b8 48 83 f8 31 77 5f e8 52 e8 f5 ff 41 80 66 28 7f e9
[ 160.587334] RIP: shrink_node+0x47f/0x5a0 RSP: ffffc900001bbd78
[ 160.587334] RIP: shrink_node+0x47f/0x5a0 RSP: ffffc900001bbd78
[ 160.592867] init: tty3 main process (530) terminated with status 1
[ 160.592867] init: tty3 main process (530) terminated with status 1
[ 160.610109] init: tty3 main process ended, respawning
To reproduce:
git clone https://github.com/01org/lkp-tests.git
cd lkp-tests
bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email
Thanks,
Xiaolong
View attachment "config-4.12.0-rc2-00204-gaefd950" of type "text/plain" (108126 bytes)
View attachment "job-script" of type "text/plain" (3903 bytes)
Download attachment "dmesg.xz" of type "application/octet-stream" (18448 bytes)
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