| commit | 806701601c739b4859577ac1ea18ec1098df8052 | |
| author | Matthew Dillon <dillon@apollo.backplane.com> | |
| Sat, 4 May 2019 21:18:34 +0000 (4 14:18 -0700) | ||
| committer | Matthew Dillon <dillon@apollo.backplane.com> | |
| Sat, 4 May 2019 21:18:34 +0000 (4 14:18 -0700) | ||
| tree | 795ec101c760ffa251c2e943625d538b06cf6c8e | treesnapshot (tar.gz zip) |
| parent | 45a165c7ada0f9a1ca54d3a1c8d855e7cb767efe | commitdiff |
drm/radeon - Attempt to fix data structure corruption on exit
* Attempt to fix data structure corruption in the radeon driver
when X exits. This was causing X to lockup due to an attempt
to double-remove vm->va from its interval tree.
* Validation operations based on field state. In particular,
do not try to issue the interval tree removal unless
it.start or it.last are non-zero.
Also, in radeon_vm_fini() do not issue the interval tree removal
unless the bo can be successfully reserved. Otherwise the
structure might be placed in a bad state while it is still in use.
* Attempt to fix data structure corruption in the radeon driver
when X exits. This was causing X to lockup due to an attempt
to double-remove vm->va from its interval tree.
* Validation operations based on field state. In particular,
do not try to issue the interval tree removal unless
it.start or it.last are non-zero.
Also, in radeon_vm_fini() do not issue the interval tree removal
unless the bo can be successfully reserved. Otherwise the
structure might be placed in a bad state while it is still in use.
| sys/dev/drm/radeon/radeon_vm.c | diffblobblamehistory |