[Bug 107945] System crashes seconds after a GPU hang with kernel newer than 4.18

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107945

--- Comment #23 from leozinho29_eu at hotmail.com ---
After 4 hours after a GPU hang, drm-tip HEAD
3eebbff19df5f58ddc16a132567dd45717f0753a with the first two patches applied is
still working normally, while drm-tip HEAD
3eebbff19df5f58ddc16a132567dd45717f0753a without the patches is crashing.

These two patches seem to solve the issue to me.

The kernel command line of the current boot that is working well after 4 hours
after the GPU hang:

BOOT_IMAGE=/boot/vmlinuz-4.20.0-rc5-1-2-ursulin+
root=UUID=6b4ae5c0-c78c-49a6-a1ba-029192618a7a ro quiet ro kvm.ignore_msrs=1
kvm.halt_poll_ns=0 kvm.halt_poll_ns_grow=0 intel_iommu=on iommu=pt
i915.enable_gvt=1 i915.fastboot=1
resume=UUID=d8cfc834-ef4f-4a15-9c4e-403c9cbd0685 mtrr_gran_size=2M
mtrr_chunk_size=64M cgroup_enable=memory swapaccount=1 zswap.enabled=1
log_buf_len=64M usbhid.quirks=0x0079:0x0006:0x100000 config_scsi_mq_default=y
scsi_mod.use_blk_mq=1

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