@Christopher: I still have this crash with the upstream kernel version
3.12.0-031200.
It seems that it still crash in 'r600_pcie_gart_tlb_flush'.
Note that I no longer have this crash if I remove this line from
/etc/init/lightdm.conf (please have a look to the comment #7 for more
details about that):
echo OFF > /sys/kernel/debug/vgaswitcheroo/switch
But then, my ATI/AMD GPU is still enabled and consume a lot of
resources...
** Tags removed: needs-upstream-testing
** Tags added: kernel-bug-exists-upstream-v3.12
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1170917
Title:
IP: [<ffffffffa01b6c05>] r600_pcie_gart_tlb_flush+0xf5/0x110 [radeon];
RIP: 0010:[<ffffffffa01b6c05>] [<ffffffffa01b6c05>]
r600_pcie_gart_tlb_flush+0xf5/0x110 [radeon]
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