On 06.09.2012 17:42, Marek Olšák wrote:
On Fri, Aug 31, 2012 at 7:08 AM, Michel Dänzer <mic...@daenzer.net> wrote:
On Don, 2012-08-30 at 17:35 +0200, Marek Olšák wrote:
This fixes hangs on Cayman.
Note that at least some of those hangs are due to pre-existing
out-of-bounds memory access bugs which happen not to cause any serious
problems without virtual address space. Enabling it can help pinpoint
those bugs using the virtual memory protection fault address.
I tried to allocate twice as much memory for every r600g resource and
it still hung. I am out of ideas and I see no easy way to debug that,
because the soft reset just doesn't work. I don't even remember when
the soft reset worked last time. It's been so long.
Currently working on that and already have a patch that instead of
locking the GPU hard just redirects every invalid memory access to the
dummy page and prints a nice warning into the syslog that userspace is
doing something nasty.
Seems to work allot better than just hanging everything on the first
sign of problems.
Give me a day or two to sort that out,
Christian.
Marek
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