Comment # 5
on bug 87278
from Alexandre Demers
(In reply to Daniel Scharrer from comment #0) > Created attachment 110808 [details] > dmesg output with the GPU fault errors filtered out > > Running Serious Sam 3 or The Talos Principle spams dmesg with thousands of > these errors: > > [ 6001.212237] radeon 0000:01:00.0: GPU fault detected: 147 0x02528801 > [ 6001.212243] radeon 0000:01:00.0: VM_CONTEXT1_PROTECTION_FAULT_ADDR > 0x0FF02192 > [ 6001.212246] radeon 0000:01:00.0: VM_CONTEXT1_PROTECTION_FAULT_STATUS > 0x12088001 > [ 6001.212249] VM fault (0x01, vmid 9) at page 267395474, read from TC (136) > > There are also a few "Packet0 not allowed" errors (followed by a hex dump): > > [15446.473341] radeon 0000:01:00.0: Packet0 not allowed! > > So far it's only these errors in dmesg - I haven't observed any actual > rendering issues, crashes, GPU lockups because of this. > > I have only attached a filtered kernel log with the GPU fault errors removed > - the full log is available at http://constexpr.org/tmp/serious-dmesg.log > (140 MiB). > > Both of these games use the Serious Engine 3.5 (Serious Sam 3) or 4 (The > Talos Principle). This is also reproducible with The Talos Principle Public > Test which as of now is still available as a free download on Steam. > > Kernel: 3.18.0-gentoo > GPU: Radeon HD 7950 > Driver: radeonsi, Mesa 10.5.0-devel (git-ff96537) > > This might be related to bug 84500 - however those spurious Packet0 have > been gone for a while now with updated Mesa - now I got them again but only > while running Serious Engine games. I haven't had a look at the log when launching SS3, but for sure it crashes in no time. It crashes in no time once in a game. It could be related to your bug. However, I think the VM and the Packet 0 are different bugs. I'll have a look in the logs if I get something similar.
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