[Bug 101038] Radeon 9650 (rv350): gpu reset/lockup (dri3, ppc)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101038

--- Comment #4 from erhard_f at mailbox.org ---
What a pity, my hope was that DRI3 will work more reliable than DRI2 on PPC
hardware.

I am using MATE 1.18.0. Freezes with DRI2+exa happen almost instantly when
reaching the desktop:

[ 1275.313543] radeon 0000:f0:10.0: ring 0 stalled for more than 10133msec
[ 1275.313554] radeon 0000:f0:10.0: GPU lockup (current fence id
0x0000000000000432 last fence id 0x0000000000000433 on ring 0)                  
[ 1275.463941] Failed to wait GUI idle while programming pipes. Bad things
might happen.
[ 1275.464995] radeon 0000:f0:10.0: Saved 59 dwords of commands on ring 0.
[ 1275.465014] radeon 0000:f0:10.0: (r300_asic_reset:425)
RBBM_STATUS=0x80010140
[ 1275.681771] usb 1-1: USB disconnect, device number 5
[ 1275.681779] usb 1-1.3: USB disconnect, device number 6
[ 1275.965005] radeon 0000:f0:10.0: (r300_asic_reset:444)
RBBM_STATUS=0x80010140
[ 1276.461002] radeon 0000:f0:10.0: (r300_asic_reset:456)
RBBM_STATUS=0x00000140
[ 1276.461032] radeon 0000:f0:10.0: GPU reset succeed
[ 1276.461037] radeon 0000:f0:10.0: GPU reset succeeded, trying to resume
[ 1276.461068] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
[ 1276.461074] radeon 0000:f0:10.0: WB disabled
[ 1276.461080] radeon 0000:f0:10.0: fence driver on ring 0 use gpu addr
0x0000000000000000 and cpu addr 0xd000000001869000
[ 1276.461172] [drm] radeon: ring at 0x0000000000001000
[ 1276.461241] [drm] ring test succeeded in 0 usecs
[ 1276.512215] usb 1-1.4: USB disconnect, device number 7
[ 1276.515758] [drm] ib test succeeded in 0 usecs

DRI3+glamor either did not work out:

[   143.438] (**) RADEON(0): DRI3 enabled
[   143.438] (==) RADEON(0): Backing store enabled
[   143.438] (II) RADEON(0): Direct rendering enabled
[   143.439] (WW) glamor requires at least 128 instructions (64 reported)
[   143.439] (EE) RADEON(0): Failed to initialize glamor.
[   143.439] (EE) RADEON(0): Acceleration initialization failed
[   143.439] (II) RADEON(0): Acceleration disabled

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