[Bug 108854] [polaris11] - Failed GPU reset after hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108854

--- Comment #1 from Tom Seewald <tseewald at gmail.com> ---
I can confirm this is still happening on 4.20-rc4 as well as with more up to
date userspace software.

libdrm: 3.27.0
Mesa: 18.2.4

The hangs can be reliably reproduced at least as far back as kernel 4.15 so I
am not confident I can bisect this.

Here is a dump of my card's firmware information in case I missed an update.

# cat /sys/kernel/debug/dri/1/amdgpu_firmware_info

VCE feature version: 0, firmware version: 0x34040300
UVD feature version: 0, firmware version: 0x01821000
MC feature version: 0, firmware version: 0x00000000
ME feature version: 47, firmware version: 0x000000a2
PFP feature version: 47, firmware version: 0x000000f0
CE feature version: 47, firmware version: 0x00000089
RLC feature version: 1, firmware version: 0x00000035
RLC SRLC feature version: 0, firmware version: 0x00000000
RLC SRLG feature version: 0, firmware version: 0x00000000
RLC SRLS feature version: 0, firmware version: 0x00000000
MEC feature version: 47, firmware version: 0x000002cb
MEC2 feature version: 47, firmware version: 0x000002cb
SOS feature version: 0, firmware version: 0x00000000
ASD feature version: 0, firmware version: 0x00000000
SMC feature version: 0, firmware version: 0x001d0900
SDMA0 feature version: 31, firmware version: 0x00000036
SDMA1 feature version: 0, firmware version: 0x00000036
VCN feature version: 0, firmware version: 0x00000000
DMCU feature version: 0, firmware version: 0x00000000
VBIOS version: 113-C98121-M01

Would umr[1] be useful here? I have not used it before, so I'd need some
guidance on what arguments would produce output relevant to this hang.

Any help is appreciated.

[1] https://cgit.freedesktop.org/amd/umr/

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