Bug 90229

Summary: [PNV/SNB/IVB/HSW/BSW/SKL regression]Call trace during system boot up progress then reboot fail
Product: DRI Reporter: ye.tian <yex.tian>
Component: DRM/IntelAssignee: Keyon <yang.jie>
Status: CLOSED NOTOURBUG QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: major    
Priority: high CC: intel-gfx-bugs, yang.jie
Version: unspecified   
Hardware: All   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
dmesg info with the nightly kernel
none
dmesg info with the fixes kernel
none
patch to fix the issue none

Description ye.tian 2015-04-29 08:34:29 UTC 
Created attachment 115431 [details]
dmesg info with the nightly kernel

==System Environment==       
-----------------------------------------------------
Regression: Yes, 
Non-working platforms: BSW

==Kernel==
--------------------------------------------------
commit 9a4da5ec419897b78c1d4a3949c0c049db5402c5
Author: Jani Nikula <jani.nikula@intel.com>
Date:   Tue Apr 28 17:41:30 2015 +0300

    drm-intel-nightly: 2015y-04m-28d-14h-41m-15s UTC integration manifest

==Bug detailed description==
--------------------------------------------------
Call trace during system boot up progress then reboot fail on the latest nightly kernel, It does not exists on the latest next-queued kernel.
On latest fixes kernel, also have call trace when system boot up, but different with –nightly branch, and reboot is working.

==dmesg info==
[    4.019355] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
[    4.019365] IP: [<ffffffff81689d8d>] input_event+0x12/0x6b
[    4.019368] PGD 28de067 PUD 28f4067 PMD 0
[    4.019371] Oops: 0000 [#1] SMP
[    4.019392] Modules linked in: snd_hda_codec_realtek(+) iTCO_wdt iTCO_vendor_support snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core pcspkr snd_hwdep serio_raw snd_pcm snd_timer lpc_ich i2c_i801 mfd_core snd soundcore battery ac acpi_cpufreq i915 button video drm_kms_helper drm
[    4.019397] CPU: 2 PID: 2343 Comm: modprobe Not tainted 4.1.0-rc1_drm-intel-nightly_9a4da5_20150429+ #140
[    4.019399] task: ffff88017a2c4180 ti: ffff880002c90000 task.ti: ffff880002c90000
[    4.019404] RIP: 0010:[<ffffffff81689d8d>]  [<ffffffff81689d8d>] input_event+0x12/0x6b
[    4.019406] RSP: 0018:ffff880002c93a48  EFLAGS: 00010286
[    4.019408] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[    4.019409] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[    4.019411] RBP: 0000000000000006 R08: 0000000000000012 R09: ffff88007ba05c58
[    4.019412] R10: ffff88017a41ef00 R11: 00000000fffffffe R12: 0000000000000002
[    4.019414] R13: 0000000000000001 R14: ffff880002c93afc R15: 0000000000000002
[    4.019416] FS:  00007fea24c70740(0000) GS:ffff88017fd00000(0000) knlGS:0000000000000000
[    4.019418] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[    4.019420] CR2: 0000000000000028 CR3: 0000000002e95000 CR4: 00000000001006e0
[    4.019420] Stack:
[    4.019425]  0000000000000001 ffffffffa018f8cc ffff88017a41b840 0000000000000006
[    4.019428]  0000000000000002 ffffffffa018fc1f ffff88007ba05980 ffff880002e558c8
[    4.019431]  ffff88007ba06800 0000000000000012 0000000000000004 ffffffffa01f5f36
[    4.019432] Call Trace:
[    4.019443]  [<ffffffffa018f8cc>] ? snd_jack_new+0x8e/0x140 [snd]
[    4.019450]  [<ffffffffa018fc1f>] ? snd_jack_report+0x9d/0xd2 [snd]
[    4.019459]  [<ffffffffa01f5f36>] ? __snd_hda_jack_add_kctl+0xd2/0xe0 [snd_hda_codec]
[    4.019466]  [<ffffffffa01f6021>] ? add_jack_kctl+0xd3/0xf9 [snd_hda_codec]
[    4.019474]  [<ffffffffa01f60b2>] ? snd_hda_jack_add_kctls+0x6b/0x170 [snd_hda_codec]
[    4.019481]  [<ffffffffa021952d>] ? snd_hda_gen_build_controls+0x194/0x1a6 [snd_hda_codec_generic]
[    4.019492]  [<ffffffffa0232d39>] ? alc_build_controls+0x13/0x50 [snd_hda_codec_realtek]
[    4.019501]  [<ffffffffa01f5430>] ? snd_hda_codec_build_controls+0x34/0x1b6 [snd_hda_codec]
[    4.019508]  [<ffffffffa01f5832>] ? snd_hda_codec_build_pcms+0xff/0x175 [snd_hda_codec]
[    4.019515]  [<ffffffffa01f1417>] ? hda_codec_driver_probe+0xcb/0x118 [snd_hda_codec]
[    4.019521]  [<ffffffff813fc81b>] ? pm_runtime_barrier+0x59/0x85
[    4.019526]  [<ffffffff813f4fa0>] ? driver_probe_device+0xcd/0x225
[    4.019529]  [<ffffffff813f5180>] ? __driver_attach+0x53/0x73
[    4.019532]  [<ffffffff813f512d>] ? __device_attach+0x35/0x35
[    4.019535]  [<ffffffff813f3825>] ? bus_for_each_dev+0x6e/0x78
[    4.019539]  [<ffffffff813f4820>] ? bus_add_driver+0x101/0x1cb
[    4.019542]  [<ffffffff813f5775>] ? driver_register+0x83/0xbb
[    4.019545]  [<ffffffffa0240000>] ? 0xffffffffa0240000
[    4.019550]  [<ffffffff810002fd>] ? do_one_initcall+0xe2/0x161
[    4.019555]  [<ffffffff817a9be2>] ? preempt_schedule_common+0x1a/0x32
[    4.019558]  [<ffffffff817a9c0d>] ? _cond_resched+0x13/0x1a
[    4.019563]  [<ffffffff8110ebc3>] ? kmem_cache_alloc_trace+0x2a/0xfb
[    4.019566]  [<ffffffff817a32d1>] ? do_init_module+0x55/0x1b5
[    4.019572]  [<ffffffff810939ab>] ? load_module+0x149b/0x1973
[    4.019576]  [<ffffffff810914dc>] ? store_uevent+0x36/0x36
[    4.019583]  [<ffffffff817adc32>] ? page_fault+0x22/0x30
[    4.019587]  [<ffffffff81093f3e>] ? SyS_init_module+0xbb/0xea
[    4.019591]  [<ffffffff817ac217>] ? system_call_fastpath+0x12/0x6a
[    4.019624] Code: 01 00 00 bd 03 00 00 00 e9 06 fd ff ff 58 5b 5d 41 5c 41 5d 41 5e 41 5f c3 83 fe 1f 77 65 41 54 89 f0 55 53 48 89 fb 48 83 ec 10 <48> 0f a3 47 28 19 c0 85 c0 74 45 48 8d af f8 01 00 00 89 4c 24
[    4.019628] RIP  [<ffffffff81689d8d>] input_event+0x12/0x6b
[    4.019629]  RSP <ffff880002c93a48>
[    4.019630] CR2: 0000000000000028
[    4.019633] ---[ end trace 2ea81e31c7b5f5ad ]--

==Reproduce steps==
----------------------------
1, boot machine
Comment 1 ye.tian 2015-04-29 08:46:17 UTC 
Created attachment 115432 [details]
dmesg info with the fixes kernel
Comment 2 Jani Nikula 2015-04-29 09:51:33 UTC 
So nightly has one problem (NULL ptr dereference) and fixes has another (invalid opcode)?

The problem in nightly is not an i915 issue. Please try the sound-for-next branch of http://cgit.freedesktop.org/~jani/drm/. It countains v4.1-rc1 plus new audio related stuff that we merge to nightly. Please repeat a few times and see which problem we end up with.
Comment 3 ye.tian 2015-04-30 08:30:01 UTC 
(In reply to Jani Nikula from comment #2)
> So nightly has one problem (NULL ptr dereference) and fixes has another
> (invalid opcode)?
> 
> The problem in nightly is not an i915 issue. Please try the sound-for-next
> branch of http://cgit.freedesktop.org/~jani/drm/. It countains v4.1-rc1 plus
> new audio related stuff that we merge to nightly. Please repeat a few times
> and see which problem we end up with.

Test sound-for-next branch of http://cgit.freedesktop.org/~jani/drm/ kernel, Test result is the same as the result of testing on nightly kernel.
Comment 4 Jani Nikula 2015-04-30 09:51:25 UTC 
I dropped sound-next from drm-intel-nightly for now, closing.

Please reopen if you can still reproduce the NULL ptr dereference problem.

(In reply to ye.tian from comment #1)
> Created attachment 115432 [details]
> dmesg info with the fixes kernel

If this issue on drm-intel-fixes is still reproducible, please file a new bug.
Comment 5 ye.tian 2015-04-30 10:22:23 UTC 
(In reply to Jani Nikula from comment #4)
> I dropped sound-next from drm-intel-nightly for now, closing.
> 
> Please reopen if you can still reproduce the NULL ptr dereference problem.
> 
> (In reply to ye.tian from comment #1)
> > Created attachment 115432 [details]
> > dmesg info with the fixes kernel
> 
> If this issue on drm-intel-fixes is still reproducible, please file a new
> bug.

Retest it on the latest nightly(014851e3) and latest fixes(a04f90a3), this problem does not exists.
So verified.
Comment 6 Jani Nikula 2015-04-30 10:49:30 UTC 
For anyone stumbling here due to the backtrace, I reported this on alsa-devel: http://mid.gmane.org/87fv7i9bgu.fsf@intel.com
Comment 7 Keyon 2015-04-30 11:23:32 UTC 
assign it to me, please.
Comment 8 Keyon 2015-04-30 12:21:55 UTC 
Created attachment 115474 [details] [review]
patch to fix the issue

I just worked out a patch to fix it. no chance to test it yet.
will submit it to alsa once it passed testing.
Comment 9 Keyon 2015-05-04 00:46:19 UTC 
thanks for reporting it, it is fixed now.
please merge latest alsa kernel to fix it.

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