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

[coypu%SDF.ORG@localhost]

The following reply was made to PR kern/52048; it has been noted by GNATS.

From: coypu%SDF.ORG@localhost
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/52048: radeondrmkms: ttm->state == tt_unbound assertion
Date: Wed, 8 Mar 2017 12:27:49 +0000

 ttm_bus_dma_populate is called with object unpopulated
 bus_dmamap_load_pglist fails (can happen spontaneously)
 function ttm_bus_dma_populate does not touch state (ttm_wire doesn't
 change it).
 
 fail1 error path calls ttm_tt_unwire , still with state "unpopulated"
 
 I don't know what is the proper way to amend it. I imagine we still want
 the assert, so state should be change prior to the call to
 ttm_tt_unwire.