[Bug 94736] [BAT IGT ALL] drv_module_reload_basic fail on all platforms

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Mar 29 13:19:02 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=94736

--- Comment #4 from Marius Vlad <marius.c.vlad at intel.com> ---
Same warning:


[   40.798598] ------------[ cut here ]------------
[   40.798606] WARNING: CPU: 1 PID: 450 at sound/hda/hdac_i915.c:309
snd_hdac_i915_init+0x130/0x169 [snd_hda_core]
[   40.798608] Modules linked in: snd_hda_intel(+) i915 drm_kms_helper drm
snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_codec
intel_rapl snd_hda_core x86_pkg_temp_thermal dell_smm_hwmon intel_powerclamp
tpm_tis tpm joydev coretemp snd_hwdep ghash_clmulni_intel serio_raw snd_pcm
snd_timer lpc_ich mei_me mei processor battery evdev netconsole hid_generic
usbhid hid xhci_pci xhci_hcd psmouse ehci_pci ehci_hcd r8169 i2c_algo_bit mii
usbcore usb_common fan thermal video button [last unloaded: drm]
[   40.798624] CPU: 1 PID: 450 Comm: kworker/1:3 Tainted: G     U  W      
4.6.0-rc1+ #89
[   40.798625] Hardware name: Dell Inc. Inspiron 3847/088DT1       , BIOS A06
01/15/2015
[   40.798628] Workqueue: events azx_probe_work [snd_hda_intel]
[   40.798629]  0000000000000286 00000000ffe976ea ffffffff814b8ca5
0000000000000000
[   40.798630]  0000000000000000 ffffffff810f8ebe ffff88002f29f708
ffff8802058ae600
[   40.798632]  ffff88021fa96240 ffff880215968098 ffff880215968000
ffff88002f29f000
[   40.798633] Call Trace:
[   40.798637]  [<ffffffff814b8ca5>] ? dump_stack+0x5c/0x77
[   40.798640]  [<ffffffff810f8ebe>] ? __warn+0xbe/0xe0
[   40.798644]  [<ffffffffa03d49e0>] ? snd_hdac_i915_init+0x130/0x169
[snd_hda_core]
[   40.798646]  [<ffffffff8112d127>] ? dequeue_task_fair+0x57/0x940
[   40.798649]  [<ffffffffa0116642>] ? azx_probe_continue+0x2e2/0x850
[snd_hda_intel]
[   40.798652]  [<ffffffff8111170a>] ? process_one_work+0x15a/0x410
[   40.798653]  [<ffffffff81111a0d>] ? worker_thread+0x4d/0x480
[   40.798654]  [<ffffffff811119c0>] ? process_one_work+0x410/0x410
[   40.798656]  [<ffffffff8111783d>] ? kthread+0xcd/0xf0
[   40.798659]  [<ffffffff81791ca2>] ? ret_from_fork+0x22/0x40
[   40.798661]  [<ffffffff81117770>] ? kthread_create_on_node+0x190/0x190
[   40.798662] ---[ end trace 368a576a7cb20cec ]---


Tried with:

commit f6216961932e1c64251ddb6a6ba17e4f92596397
Author: Takashi Iwai <tiwai at suse.de>
Date:   Tue Mar 29 12:29:24 2016 +0200

    ALSA: hda - Clear the leftover component assignment at snd_hdac_i915_exit()

    The commit [d745f5e7b8b2: ALSA: hda - Add the pin / port mapping on
    Intel ILK and VLV] introduced a WARN_ON() to check the pointer for
    avoiding the double initializations.  But hdac_acomp pointer wasn't
    cleared at snd_hdac_i915_exit(), thus after reloading the HD-audio
    driver, it may result in the false positive warning.  This patch makes
    sure to clear the leftover pointer at exit.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94736
    Reported-by: Daniela Doras-prodan <daniela.doras-prodan at intel.com>
    Signed-off-by: Takashi Iwai <tiwai at suse.de>

commit 2702045fbd4188c1c26bd890bc43976fd10937ad
Author: Jani Nikula <jani.nikula at intel.com>
Date:   Tue Mar 29 15:21:58 2016 +0300

    drm-intel-nightly: 2016y-03m-29d-12h-21m-19s UTC integration manifest

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