[Bug 94900] HD6950 GPU lockup loop with various steam games (octodad[always], saints row 4[always], dead island[always], grid autosport[sometimes])

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94900

--- Comment #31 from Frederic Romagne <frederic.romagne at gmail.com> ---
(In reply to Frederic Romagne from comment #30)
> I can confirm it removes the lockup in Octodad, however it breaks the
> rendering in Rocket League... Recompiling mesa without the patch and Rocket
> League renders properly again...

It was a reply to comment 28,

I had a bunch of 

oct. 02 10:06:22 kiss-desktop kernel: [drm:evergreen_packet3_check.isra.14
[radeon]] *ERROR* bad EVENT_WRITE
oct. 02 10:06:22 kiss-desktop kernel: [drm:radeon_cs_ioctl [radeon]] *ERROR*
Invalid command stream !
oct. 02 10:06:22 kiss-desktop steam.desktop[1150]: radeon: The kernel rejected
CS, see dmesg for more information (-22).
oct. 02 10:06:22 kiss-desktop kernel: [drm:radeon_cs_packet_next_reloc
[radeon]] *ERROR* No packet3 for relocation for packet at 6094.
oct. 02 10:06:22 kiss-desktop kernel: [drm] ib[6094]=0xC0044700
oct. 02 10:06:22 kiss-desktop kernel: [drm] ib[6095]=0x00000528
oct. 02 10:06:22 kiss-desktop kernel: [drm] ib[6096]=0x00000080
oct. 02 10:06:22 kiss-desktop kernel: [drm] ib[6097]=0x20000000
oct. 02 10:06:22 kiss-desktop kernel: [drm] ib[6098]=0x80000000
oct. 02 10:06:22 kiss-desktop kernel: [drm] ib[6099]=0x00000000
oct. 02 10:06:22 kiss-desktop kernel: [drm:evergreen_packet3_check.isra.14
[radeon]] *ERROR* bad EVENT_WRITE
oct. 02 10:06:22 kiss-desktop kernel: [drm:radeon_cs_ioctl [radeon]] *ERROR*
Invalid command stream !
oct. 02 10:06:22 kiss-desktop steam.desktop[1150]: radeon: The kernel rejected
CS, see dmesg for more information (-22).
oct. 02 10:06:22 kiss-desktop kernel: [drm:radeon_cs_packet_next_reloc
[radeon]] *ERROR* No packet3 for relocation for packet at 6094.
oct. 02 10:06:22 kiss-desktop kernel: [drm] ib[6094]=0xC0044700
oct. 02 10:06:22 kiss-desktop kernel: [drm] ib[6095]=0x00000528
oct. 02 10:06:22 kiss-desktop kernel: [drm] ib[6096]=0x00000080
oct. 02 10:06:22 kiss-desktop kernel: [drm] ib[6097]=0x20000000
oct. 02 10:06:22 kiss-desktop kernel: [drm] ib[6098]=0x80000000
oct. 02 10:06:22 kiss-desktop kernel: [drm] ib[6099]=0x00000000


while trying Rocket League with this patch.

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