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Date: Tue, 10 Oct 2017 20:16:27 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Lukas Czerner <lczerner@...hat.com>
Cc: Jens Axboe <axboe@...nel.dk>, Jan Kara <jack@...e.cz>,
"Darrick J. Wong" <darrick.wong@...cle.com>,
Jeff Moyer <jmoyer@...hat.com>,
LKML <linux-kernel@...r.kernel.org>,
Linus Torvalds <torvalds@...ux-foundation.org>, lkp@...org
Subject: [lkp-robot] [fs] 332391a993:
WARNING:at_fs/iomap.c:#iomap_dio_complete
FYI, we noticed the following commit (built with gcc-6):
commit: 332391a9935da939319e473b4680e173df75afcf ("fs: Fix page cache inconsistency when mixing buffered and AIO DIO")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: xfstests
with following parameters:
disk: 4HDD
fs: xfs
test: generic-slow2
test-description: xfstests is a regression test suite for xfs and other files ystems.
test-url: git://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git
on test machine: qemu-system-x86_64 -enable-kvm -cpu qemu64,+ssse3 -smp 4 -m 4G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+-------------------------------------------------------------------+------------+------------+
| | bb1cc74790 | 332391a993 |
+-------------------------------------------------------------------+------------+------------+
| boot_successes | 62 | 24 |
| boot_failures | 1 | 33 |
| WARNING:at_fs/btrfs/extent-tree.c:#btrfs_free_block_groups[btrfs] | 1 | |
| WARNING:at_fs/direct-io.c:#dio_complete | 0 | 25 |
| WARNING:at_fs/iomap.c:#iomap_dio_complete | 0 | 8 |
+-------------------------------------------------------------------+------------+------------+
[ 170.063040] WARNING: CPU: 0 PID: 33 at fs/iomap.c:731 iomap_dio_complete+0x129/0x130
[ 170.068758] Modules linked in: xfs dm_mod rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver sr_mod cdrom sg ata_generic pata_acpi ppdev ata_piix parport_pc snd_pcm snd_timer snd soundcore serio_raw pcspkr i2c_piix4 libata floppy parport ip_tables
[ 170.074819] CPU: 0 PID: 33 Comm: kworker/0:1 Not tainted 4.14.0-rc1-00056-g332391a #1
[ 170.077915] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 170.081047] Workqueue: dio/vda iomap_dio_complete_work
[ 170.081974] task: ffff88012e504a80 task.stack: ffffc90000758000
[ 170.084465] RIP: 0010:iomap_dio_complete+0x129/0x130
[ 170.085381] RSP: 0018:ffffc9000075be18 EFLAGS: 00010286
[ 170.087536] RAX: 00000000fffffff0 RBX: 0000000000000001 RCX: 000000000000000c
[ 170.088853] RDX: 0000000000000000 RSI: ffffc9000075bc50 RDI: ffff880075715da9
[ 170.092113] RBP: ffffc9000075be30 R08: ffffc9000075bcf0 R09: ffff880075715da8
[ 170.093254] R10: 000000000000000c R11: 0000000000000000 R12: ffff88007afa9300
[ 170.096475] R13: ffff88007ac7ad80 R14: ffff88007afa9338 R15: ffff88007afa9330
[ 170.098187] FS: 0000000000000000(0000) GS:ffff88013fc00000(0000) knlGS:0000000000000000
[ 170.101322] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 170.102265] CR2: 00007f3ad48a8020 CR3: 000000007fe16000 CR4: 00000000000006f0
[ 170.104631] Call Trace:
[ 170.105146] iomap_dio_complete_work+0x25/0x80
[ 170.106704] process_one_work+0x198/0x3e0
[ 170.107874] worker_thread+0x4e/0x3e0
[ 170.108522] kthread+0x114/0x150
[ 170.110683] ? process_one_work+0x3e0/0x3e0
[ 170.111362] ? kthread_create_on_node+0x40/0x40
[ 170.113111] ret_from_fork+0x25/0x30
[ 170.113752] Code: c9 74 17 49 63 74 24 28 41 8b 54 24 24 85 f6 0f 84 2a ff ff ff e9 3e ff ff ff 41 8b 74 24 28 49 8b 45 00 48 63 de e9 39 ff ff ff <0f> ff eb ca 0f 1f 00 0f 1f 44 00 00 55 48 83 ef 30 48 89 e5 41
[ 170.116540] ---[ end trace 23a07b952f574121 ]---
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,
Xiaolong
View attachment "config-4.14.0-rc1-00056-g332391a" of type "text/plain" (163211 bytes)
View attachment "job-script" of type "text/plain" (4701 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (15888 bytes)
View attachment "xfstests" of type "text/plain" (1211 bytes)
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