On Wed, 08 Jan 2020 19:08:56 +0100, Kai Vehmanen wrote: > > This reverts commit 42ec336f1f9d ("ALSA: hda: Disable regmap > internal locking"). > > Without regmap locking, there is a race between snd_hda_codec_amp_init() > and PM callbacks issuing regcache_sync(). This was caught by > following kernel warning trace: > > <4> [358.080081] WARNING: CPU: 2 PID: 4157 at drivers/base/regmap/regcache.c:498 regcache_cache_only+0xf5/0x130 > [...] > <4> [358.080148] Call Trace: > <4> [358.080158] snd_hda_codec_amp_init+0x4e/0x100 [snd_hda_codec] > <4> [358.080169] snd_hda_codec_amp_init_stereo+0x40/0x80 [snd_hda_codec] > > Suggested-by: Takashi Iwai <tiwai@xxxxxxx> > BugLink: https://gitlab.freedesktop.org/drm/intel/issues/592 > Signed-off-by: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx> Applied now. Thanks. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel