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Date: Fri, 25 Aug 2017 16:07:36 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Markus Elfring <elfring@...rs.sourceforge.net>
Cc: Takashi Iwai <tiwai@...e.de>, LKML <linux-kernel@...r.kernel.org>,
Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
lkp@...org
Subject: [lkp-robot] [ALSA] c8da9be4a7:
WARNING:at_fs/proc/generic.c:#proc_register
FYI, we noticed the following commit:
commit: c8da9be4a75f1f63024a16b976c5be47405c13dc ("ALSA: pcm: Adjust nine function calls together with a variable assignment")
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git for-next
in testcase: trinity
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-i386 -enable-kvm -m 256M
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+------------------------------------------------+------------+------------+
| | 97d15a141f | c8da9be4a7 |
+------------------------------------------------+------------+------------+
| boot_successes | 4 | 0 |
| boot_failures | 2 | 6 |
| IP-Config:Auto-configuration_of_network_failed | 2 | 2 |
| WARNING:at_fs/proc/generic.c:#proc_register | 0 | 6 |
| EIP:proc_register | 0 | 6 |
+------------------------------------------------+------------+------------+
[ 8.559972] WARNING: CPU: 0 PID: 1 at fs/proc/generic.c:328 proc_register+0xe4/0x130
[ 8.559972] WARNING: CPU: 0 PID: 1 at fs/proc/generic.c:328 proc_register+0xe4/0x130
[ 8.561652] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.13.0-rc3-00171-gc8da9be #1
[ 8.561652] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.13.0-rc3-00171-gc8da9be #1
[ 8.562958] task: cf644000 task.stack: cf646000
[ 8.562958] task: cf644000 task.stack: cf646000
[ 8.563748] EIP: proc_register+0xe4/0x130
[ 8.563748] EIP: proc_register+0xe4/0x130
[ 8.564423] EFLAGS: 00210282 CPU: 0
[ 8.564423] EFLAGS: 00210282 CPU: 0
[ 8.565001] EAX: 0000002e EBX: ced3a038 ECX: 00000000 EDX: 00000000
[ 8.565001] EAX: 0000002e EBX: ced3a038 ECX: 00000000 EDX: 00000000
[ 8.566049] ESI: ced3dab0 EDI: cf724d24 EBP: cf647d08 ESP: cf647ce8
[ 8.566049] ESI: ced3dab0 EDI: cf724d24 EBP: cf647d08 ESP: cf647ce8
[ 8.567102] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[ 8.567102] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[ 8.568042] CR0: 80050033 CR2: 00000000 CR3: 021d5000 CR4: 000006b0
[ 8.568042] CR0: 80050033 CR2: 00000000 CR3: 021d5000 CR4: 000006b0
[ 8.569131] Call Trace:
[ 8.569131] Call Trace:
[ 8.569561] proc_create_data+0x81/0xf0
[ 8.569561] proc_create_data+0x81/0xf0
[ 8.570264] snd_info_register+0x6d/0xe0
[ 8.570264] snd_info_register+0x6d/0xe0
[ 8.570941] snd_pcm_new_stream+0x21b/0x4a0
[ 8.570941] snd_pcm_new_stream+0x21b/0x4a0
[ 8.571694] ? strlcpy+0x33/0x50
[ 8.571694] ? strlcpy+0x33/0x50
[ 8.572252] _snd_pcm_new+0xc6/0x150
[ 8.572252] _snd_pcm_new+0xc6/0x150
[ 8.572874] snd_pcm_new+0x18/0x20
[ 8.572874] snd_pcm_new+0x18/0x20
[ 8.573463] snd_dummy_probe+0xec/0x400
[ 8.573463] snd_dummy_probe+0xec/0x400
[ 8.574103] platform_drv_probe+0x1e/0x60
[ 8.574103] platform_drv_probe+0x1e/0x60
[ 8.574785] really_probe+0x1c2/0x260
[ 8.574785] really_probe+0x1c2/0x260
[ 8.575424] __device_attach_driver+0x72/0xb0
[ 8.575424] __device_attach_driver+0x72/0xb0
[ 8.576183] ? __driver_attach+0xb0/0xb0
[ 8.576183] ? __driver_attach+0xb0/0xb0
[ 8.576844] bus_for_each_drv+0x4f/0x80
[ 8.576844] bus_for_each_drv+0x4f/0x80
[ 8.577486] __device_attach+0x9e/0xd0
[ 8.577486] __device_attach+0x9e/0xd0
[ 8.578113] ? __driver_attach+0xb0/0xb0
[ 8.578113] ? __driver_attach+0xb0/0xb0
[ 8.578772] device_initial_probe+0x12/0x20
[ 8.578772] device_initial_probe+0x12/0x20
[ 8.579486] bus_probe_device+0x77/0x80
[ 8.579486] bus_probe_device+0x77/0x80
[ 8.580201] device_add+0x2fc/0x530
[ 8.580201] device_add+0x2fc/0x530
[ 8.580797] ? dev_set_name+0x19/0x20
[ 8.580797] ? dev_set_name+0x19/0x20
[ 8.581416] platform_device_add+0x124/0x240
[ 8.581416] platform_device_add+0x124/0x240
[ 8.582156] platform_device_register_full+0xe2/0x120
[ 8.582156] platform_device_register_full+0xe2/0x120
[ 8.583002] alsa_card_dummy_init+0x97/0xf4
[ 8.583002] alsa_card_dummy_init+0x97/0xf4
[ 8.583784] ? alsa_seq_midi_event_init+0xc/0xc
[ 8.583784] ? alsa_seq_midi_event_init+0xc/0xc
[ 8.584604] do_one_initcall+0x80/0x151
[ 8.584604] do_one_initcall+0x80/0x151
[ 8.585270] ? parse_args+0x130/0x2a0
[ 8.585270] ? parse_args+0x130/0x2a0
[ 8.585890] ? kernel_init_freeable+0xe5/0x178
[ 8.585890] ? kernel_init_freeable+0xe5/0x178
[ 8.586630] kernel_init_freeable+0x105/0x178
[ 8.586630] kernel_init_freeable+0x105/0x178
[ 8.587655] ? rest_init+0xf0/0xf0
[ 8.587655] ? rest_init+0xf0/0xf0
[ 8.588230] kernel_init+0xd/0xf0
[ 8.588230] kernel_init+0xd/0xf0
[ 8.588778] ret_from_fork+0x19/0x24
[ 8.588778] ret_from_fork+0x19/0x24
[ 8.589384] Code: af 8d b6 00 00 00 00 6a 01 31 c9 ba 01 00 00 00 b8 90 4e f7 c1 83 c7 7c e8 ba 5a ef ff ff 75 f0 57 68 ac f0 d4 c1 e8 6c 2f e9 ff <0f> ff 6a 01 31 c9 ba 01 00 00 00 b8 78 4e f7 c1 e8 97 5a ef ff
[ 8.589384] Code: af 8d b6 00 00 00 00 6a 01 31 c9 ba 01 00 00 00 b8 90 4e f7 c1 83 c7 7c e8 ba 5a ef ff ff 75 f0 57 68 ac f0 d4 c1 e8 6c 2f e9 ff <0f> ff 6a 01 31 c9 ba 01 00 00 00 b8 78 4e f7 c1 e8 97 5a ef ff
[ 8.592689] ---[ end trace 8498fc54cd971cf8 ]---
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-4.13.0-rc3-00171-gc8da9be" of type "text/plain" (104607 bytes)
View attachment "job-script" of type "text/plain" (3723 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (26724 bytes)
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