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[Bug 745839] Re: compiz crashed with SIGSEGV in pthread_mutex_lock()

 

$ dmesg | grep drm
[   30.930770] [drm] Initialized drm 1.1.0 20060810
[   31.409572] [drm] radeon defaulting to kernel modesetting.
[   31.409578] [drm] radeon kernel modesetting enabled.
[   31.415104] [drm] initializing kernel modesetting (RS400 0x1002:0x5A62).
[   31.415149] [drm] register mmio base: 0xC0000000
[   31.415151] [drm] register mmio size: 65536
[   31.415342] [drm] Generation 2 PCI interface, using max accessible memory
[   31.415372] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[   31.415374] [drm] Driver supports precise vblank timestamp query.
[   31.415387] [drm] radeon: irq initialized.
[   31.415681] [drm] Detected VRAM RAM=128M, BAR=256M
[   31.415685] [drm] RAM width 128bits DDR
[   31.424607] [drm] radeon: 128M of VRAM memory ready
[   31.424610] [drm] radeon: 512M of GTT memory ready.
[   31.424638] [drm] GART: num cpu pages 131072, num gpu pages 131072
[   31.456089] [drm] radeon: 3 quad pipes, 1 z pipes initialized.
[   31.492259] [drm] Loading R300 Microcode
[   31.537152] [drm] radeon: ring at 0x0000000080001000
[   31.537176] [drm] ring test succeeded in 2 usecs
[   31.537327] [drm] radeon: ib pool ready.
[   31.537400] [drm] ib test succeeded in 0 usecs
[   31.542558] [drm] Panel ID String: QDS                     
[   31.542563] [drm] Panel Size 1280x800
[   31.543782] [drm] Radeon Display Connectors
[   31.543786] [drm] Connector 0:
[   31.543789] [drm]   VGA
[   31.543792] [drm]   DDC: 0x68 0x68 0x68 0x68 0x68 0x68 0x68 0x68
[   31.543794] [drm]   Encoders:
[   31.543796] [drm]     CRT1: INTERNAL_DAC2
[   31.543798] [drm] Connector 1:
[   31.543799] [drm]   LVDS
[   31.543802] [drm]   DDC: 0x198 0x198 0x19c 0x19c 0x1a0 0x1a0 0x1a4 0x1a4
[   31.543805] [drm]   Encoders:
[   31.543806] [drm]     LCD1: INTERNAL_LVDS
[   32.020859] [drm] fb mappable at 0xD0040000
[   32.020863] [drm] vram apper at 0xD0000000
[   32.020865] [drm] size 5185536
[   32.020867] [drm] fb depth is 24
[   32.020869] [drm]    pitch is 5760
[   32.132044] fb0: radeondrmfb frame buffer device
[   32.132046] drm: registered panic notifier
[   32.132060] [drm] Initialized radeon 2.8.0 20080528 for 0000:01:05.0 on minor 0

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https://bugs.launchpad.net/bugs/745839

Title:
  compiz crashed with SIGSEGV in pthread_mutex_lock()



References