linux-kernel - [lkp-robot] [ALSA] fcc88d91cd: WARNING:at_sound/hda/hdac_i915.c:#snd_hdac_i915_init[snd_hda

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Date:   Mon, 3 Jul 2017 10:41:02 +0800
From:   kernel test robot <xiaolong.ye@...el.com>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>, lkp@...org
Subject: [lkp-robot] [ALSA]  fcc88d91cd:
 WARNING:at_sound/hda/hdac_i915.c:#snd_hdac_i915_init[snd_hda_core]


FYI, we noticed the following commit:

commit: fcc88d91cd36d1343a0ccc09444b21f6b0dad2d8 ("ALSA: hda - Bind with i915 component before codec binding")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

in testcase: netperf
with following parameters:

	ip: ipv4
	runtime: 900s
	nr_threads: 25%
	cluster: cs-localhost
	test: TCP_STREAM
	cpufreq_governor: performance

test-description: Netperf is a benchmark that can be use to measure various aspect of networking performance.
test-url: http://www.netperf.org/netperf/


on test machine: 8 threads Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz with 8G memory

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


+--------------------------------------------------------------------+------------+------------+
|                                                                    | 17890880bb | fcc88d91cd |
+--------------------------------------------------------------------+------------+------------+
| boot_successes                                                     | 0          | 2          |
| boot_failures                                                      | 2          | 5          |
| invoked_oom-killer:gfp_mask=0x                                     | 2          |            |
| Mem-Info                                                           | 2          |            |
| Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes   | 2          |            |
| WARNING:at_drivers/gpu/drm/drm_vblank.c:#drm_wait_one_vblank[drm]  | 0          | 1          |
| WARNING:at_sound/hda/hdac_i915.c:#snd_hdac_i915_init[snd_hda_core] | 0          | 4          |
+--------------------------------------------------------------------+------------+------------+



[   12.300573] WARNING: CPU: 2 PID: 263 at sound/hda/hdac_i915.c:367 snd_hdac_i915_init+0x15a/0x17d [snd_hda_core]
[   12.300573] Modules linked in: aesni_intel(+) crypto_simd glue_helper snd_hda_intel snd_pcsp(-) libahci dcdbas cryptd pcspkr snd_hda_codec libata shpchp snd_hda_core drm_kms_helper snd_hwdep syscopyarea sysfillrect sysimgblt snd_pcm fb_sys_fops snd_timer snd drm soundcore video ip_tables
[   12.300584] CPU: 2 PID: 263 Comm: kworker/2:2 Not tainted 4.12.0-rc2-00040-gfcc88d91 #1
[   12.300585] Hardware name: Dell Inc. OptiPlex 9020/0DNKMN, BIOS A05 12/05/2013
[   12.300588] Workqueue: events azx_probe_work [snd_hda_intel]
[   12.300589] task: ffff88021b954b80 task.stack: ffffc90001544000
[   12.300593] RIP: 0010:snd_hdac_i915_init+0x15a/0x17d [snd_hda_core]
[   12.300594] RSP: 0018:ffffc90001547dc0 EFLAGS: 00010282
[   12.300595] RAX: ffff8801f8d23000 RBX: ffff88021ccca0c0 RCX: dead000000000200
[   12.300596] RDX: 0000000000000001 RSI: ffffffff81fd6a48 RDI: ffff88021bb6c000
[   12.300596] RBP: ffffc90001547de8 R08: 0000000000000129 R09: ffff88021cf46000
[   12.300597] R10: ffffc9000159bac8 R11: 00000000000002e1 R12: ffff88021ea9b6c0
[   12.300598] R13: ffff88021ea9f700 R14: ffff8801f8d230a0 R15: ffff88021bb6c000
[   12.300599] FS:  0000000000000000(0000) GS:ffff88021ea80000(0000) knlGS:0000000000000000
[   12.300600] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.300600] CR2: 00007f9bd1f0fec0 CR3: 000000021b86e000 CR4: 00000000001406e0
[   12.300601] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   12.300602] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   12.300602] Call Trace:
[   12.300608]  azx_probe_continue+0x53e/0x930 [snd_hda_intel]
[   12.300611]  azx_probe_work+0x15/0x20 [snd_hda_intel]
[   12.300615]  process_one_work+0x198/0x3e0
[   12.300617]  worker_thread+0x4e/0x3e0
[   12.300618]  kthread+0x114/0x150
[   12.300620]  ? process_one_work+0x3e0/0x3e0
[   12.300621]  ? kthread_create_on_node+0x40/0x40
[   12.300623]  ret_from_fork+0x2c/0x40
[   12.300624] Code: e2 4c 89 f7 48 c7 c6 c0 f0 14 a0 48 c7 05 3b 58 00 00 00 00 00 00 e8 26 6f 4c e1 48 83 c4 08 44 89 e0 5b 41 5c 41 5d 41 5e 5d c3 <0f> ff 41 bc f0 ff ff ff 48 83 c4 08 5b 44 89 e0 41 5c 41 5d 41 
[   12.300644] ---[ end trace bd205da3ac029498 ]---


To reproduce:

        git clone https://github.com/01org/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml



Thanks,
Xiaolong

View attachment "config-4.12.0-rc2-00040-gfcc88d91" of type "text/plain" (159394 bytes)

View attachment "job-script" of type "text/plain" (7147 bytes)

Download attachment "dmesg.xz" of type "application/octet-stream" (20688 bytes)

View attachment "netperf" of type "text/plain" (1155 bytes)

View attachment "job.yaml" of type "text/plain" (4673 bytes)

View attachment "reproduce" of type "text/plain" (386 bytes)