Messages in this thread | | | Subject | Re: [4.4.70 REGRESSION] Nouveau hangs up at boot | From | Ben Skeggs <> | Date | Tue, 13 Jun 2017 08:40:26 +1000 |
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On 06/10/2017 06:25 AM, Takashi Iwai wrote: > Hi, > > we've received a bug report about 4.4.70 kernel showing the hang up at > boot. And, this turned out to be a regression in nouveau driver: > https://bugzilla.suse.com/show_bug.cgi?id=1043467 > > I provided a test kernel reverting the last five commits about > nouveau below, and it was confirmed to work. But still not figured > out which one actually breaks. > > e4add1cf6b4154804350c3385c6d447cff3570de > drm/nouveau/tmr: handle races with hw when updating the next alarm time > commit 1b0f84380b10ee97f7d2dd191294de9017e94d1d upstream. > > 9d78e40f5f41ad1db1849f8d15acbda99d0871b4 > drm/nouveau/tmr: avoid processing completed alarms when adding a new one > commit 330bdf62fe6a6c5b99a647f7bf7157107c9348b3 upstream. > > 5e07724c28f4e06fe42dd5b58bb6f9dd56510567 > drm/nouveau/tmr: fix corruption of the pending list when rescheduling an alarm > commit 9fc64667ee48c9a25e7dca1a6bcb6906fec5bcc5 upstream. > > 27f82df2f02688c51d2c1d9f624cc0c5b8a62661 > drm/nouveau/tmr: ack interrupt before processing alarms > commit 3733bd8b407211739e72d051e5f30ad82a52c4bc upstream. > > 3819271d8a5f4c6e0c8f71c339e44e2efbe40710 > drm/nouveau/therm: remove ineffective workarounds for alarm bugs > commit e4311ee51d1e2676001b2d8fcefd92bdd79aad85 upstream. > > > Ben, is this a known problem? Or is there any fixup? > The kernel back trace found in the bugzilla report shows the issue in > nvkm_timer_alarm_trigger(), at least. > A fix (b4e382ca7586a63b6c1e5221ce0863ff867c2df6) has been submitted already.
Sorry for the trouble! Ben.
> > thanks, > > Takashi >
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