https://bugs.freedesktop.org/show_bug.cgi?id=96731
Bug ID: 96731
Summary: [RADEONSI] [LLVM] [bisected] GPU lockups when running
Alien: Isolation
Product: Mesa
Version: git
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: Drivers/Gallium/radeonsi
Assignee: dri-devel at lists.freedesktop.org
Reporter: arek.rusi at gmail.com
QA Contact: dri-devel at lists.freedesktop.org
Created attachment 124784
--> https://bugs.freedesktop.org/attachment.cgi?id=124784&action=edit
gpu lockups part from dmesg
Hi, GPU trying reset few times but hang at the end.
ArchLinux 64
Radeon HD 7770
mesa latest from git
kernel 4.7rc
libdrm latest from git
first bad commit is:
r273467 | arsenm | 2016-06-22 22:15:28 +0200 |
AMDGPU: Fix verifier errors in SILowerControlFlow
The main sin this was committing was using terminator
instructions in the middle of the block, and then
not updating the block successors / predecessors.
Split the blocks up to avoid this and introduce new
pseudo instructions for branches taken with exec masking.
Also use a pseudo instead of emitting s_endpgm and erasing
it in the special case of a non-void return.
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