[Bug 196197] [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x8504)=0xCAFEDEAD)

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=196197

--- Comment #2 from Andreas Brogle (anbro at ok.de) ---
Hello,

Sorry, I've read the git dokumentation half the day, anyway I don't understand
how bisect works and how to use it.

Is the following what you need ?

# git bisect log 
git bisect start
# bad: [c1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201] Linux 4.11-rc1
git bisect bad c1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201
# good: [7089db84e356562f8ba737c29e472cc42d530dbc] Linux 4.10-rc8
git bisect good 7089db84e356562f8ba737c29e472cc42d530dbc


What I have done is downloading from
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
the original kernel sources, compiled them and tested them
4.12-rc7 (bad)
4.11-rc1 (bad)
4.10-rc8 (good)

The bug arises with 4.11 and still persists in 4.12, so as I assumed the step
from 4.10 to 4.11 should be eamined.

Thanks,
Andreas

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