http://bugs.freedesktop.org/show_bug.cgi?id=23626
--- Comment #8 from Kevin DeKorte <kdeko...@yahoo.com> 2009-09-14 10:37:39 PST
---
suokko on #radeon had me add a patch that basically isolated the problem down
to
drivers/gpu/drm/radeon/radeon_cs.c around line 108
chunk_array_ptr = (uint64_t *)(unsigned long)(cs->chunks);
if (DRM_COPY_FROM_USER(p->chunks_array, chunk_array_ptr,
sizeof(uint64_t)*cs->num_chunks)) {
return -EFAULT;
}
he believes the ptr from userspace is invalid since that memory allocation is
failing.
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