On Tue, 13 Jun 2017 00:40:26 +0200, Ben Skeggs wrote: > > 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.
Hrm, the commit doesn't apply to 4.4.x kernel properly. Could you cook up a 4.4.x fix? Then I'll prepare a test kernel package for Luigi, so that he can test quickly. thanks, Takashi
