Hi Nicolai, that one should be fixed by "drm/amdgpu: fix PRT cleanup order in the VM". Please test and/or review. Thanks, Christian. Am 12.02.2017 um 12:36 schrieb Nicolai Hähnle: > Hi, > > Some more testing uncovered a bug in cleanup paths. When the > application segfaults while PRT mappings exist, I get a WARN_ON (which > seems fairly straightforward) and occasionally also an RCU error > warning -- see the attached dmesg logs. > > Regular application shutdown works fine, though. > > Cheers, > Nicolai > > On 08.02.2017 16:04, Christian König wrote: >> Hi guys, >> >> ok I finally found time to write an unit test for this and hammered >> out the last few bugs. >> >> Seems to work fine on my Tonga now. Please note that this set is >> based on "fix race in GEM VA map IOCTL v2", without that patch you >> will run into a NULL pointer dereference during PRT mapping. >> >> Going to send out the unit test in a minute. >> >> Regards, >> Christian. >> >> _______________________________________________ >> amd-gfx mailing list >> amd-gfx at lists.freedesktop.org >> https://lists.freedesktop.org/mailman/listinfo/amd-gfx >> >
