<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [BAT IGT ALL] drv_module_reload_basic fail on all platforms" href="https://bugs.freedesktop.org/show_bug.cgi?id=94736#c4">Comment # 4</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [BAT IGT ALL] drv_module_reload_basic fail on all platforms" href="https://bugs.freedesktop.org/show_bug.cgi?id=94736">bug 94736</a> from <a class="email" href="mailto:marius.c.vlad@intel.com" title="Marius Vlad <marius.c.vlad@intel.com>"> Marius Vlad</a> <pre>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 <<a href="mailto:tiwai@suse.de">tiwai@suse.de</a>> 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: <a class="bz_bug_link bz_status_NEW " title="NEW - [BAT IGT ALL] drv_module_reload_basic fail on all platforms" href="show_bug.cgi?id=94736">https://bugs.freedesktop.org/show_bug.cgi?id=94736</a> Reported-by: Daniela Doras-prodan <<a href="mailto:daniela.doras-prodan@intel.com">daniela.doras-prodan@intel.com</a>> Signed-off-by: Takashi Iwai <<a href="mailto:tiwai@suse.de">tiwai@suse.de</a>> commit 2702045fbd4188c1c26bd890bc43976fd10937ad Author: Jani Nikula <<a href="mailto:jani.nikula@intel.com">jani.nikula@intel.com</a>> Date: Tue Mar 29 15:21:58 2016 +0300 drm-intel-nightly: 2016y-03m-29d-12h-21m-19s UTC integration manifest</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>