[regression] Opening menu in Steam running via DRI_PRIME with enabled DRI3 could lead to radeon kernel module crash
Submitted by RussianNeuroMancer @RussianNeuroMancer
Assigned to Default DRI bug account
Description
Created attachment 118630
dmesg log
This crash (please look into attached dmesg) happen hot every time when I open context menu in Steam, but could happen like two times per evening. Since I notice this crash lately, this is probably related to some latest changes in Linux 4.2, but I could be wrong here. On Linux 4.3 this crash is also reproducible.
This issue seems like related to DRI_PRIME usage (at least I was unable to easily reproduce this if Steam launched without DRI_PRIME) or maybe to particular GPU model (integrated is 6620G, discrete 6650M).
DRI3 and GLAMOR is used, that also may be related.
Software:
Kubuntu 15.10 x86_64
Mesa: 11.0
libdrm-radeon1: 2.4.64
xserver-xorg-video-radeon: 7.5.0+git20150819
xserver-xorg-core: 1.17.2
Hardware:
Acer Aspire 7560G laptop,
AMD APU A8-3500M with integrated Radeon HD 6620G (SUMO)
Discrete AMD Radeon HD 6650M (TURKS)
Attachment 118630, "dmesg log":
dmesg