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kern/52048: radeondrmkms: ttm->state == tt_unbound assertion

>Number:         52048
>Category:       kern
>Synopsis:       radeondrmkms: ttm->state == tt_unbound assertion
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Mar 08 07:05:00 +0000 2017
>Originator:     David A. Holland
>Release:        NetBSD 7.99.44 (20161208)
System: NetBSD macaran 7.99.44 NetBSD 7.99.44 (MACARAN) #40: Thu Dec 8 17:57:53 EST 2016 dholland@macaran:/usr/src/sys/arch/amd64/compile/MACARAN amd64
Architecture: x86_64
Machine: amd64

panic: kernel diagnostic assertion "(ttm->state == tt_unbound)" failed: file "../../../../external/bsd/drm2/dist/drm/ttm/ttm_tt.c", line 411 ttm_tt 0xfffffe8144ff9b90 must be unbound for unwiring, but state=2

I have a crash dump.


it happened while I was scrolling google maps, but I had multiple X
servers and browsers open at the time.


beats me.

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