On 01/08/2018 04:05 PM, Takashi Iwai wrote: > On Mon, 08 Jan 2018 15:58:47 +0100, > Lars-Peter Clausen wrote: >> >> On 01/08/2018 03:25 PM, Takashi Iwai wrote: >>> Hi, >>> >>> this contains two fixes for PCM OSS bugs that have been triggered by >>> syzbot. These are simple and straightforward, and I'm going to queue >>> for 4.15-rc8. >> >> I tried to reproduce the issue as well with the reproducer generated by >> syzbot. But what syzbot reported was that the CPU didn't sleep for 140 >> seconds. But with a long write() we'll go to sleep in between frames. So >> when I tried the lockup detector never triggered. >> >> Were you able to reproduce the same CPU lockup as syzbot? > > Yes, I could reproduce RCU stalls with two reproducers > (001a113ece5c2b600d05620b097a@xxxxxxxxxx and > 001a1147e1988b160a05620552eb@xxxxxxxxxx) > > The patches seem curing them, so far, in combination with other > patches in for-linus branch of sound.git tree. > Hm, interesting. Are you using aloop for the backend or real hardware? _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
