On Mon, Nov 11, 2019 at 01:22:09PM +0100, Hans Petter Selasky wrote: > On 2019-11-11 11:44, Hans Petter Selasky wrote: > > Seems like we can optimise away one more write memory barrier. > > > > If you are building from ports, simply: > > > > cd work/kms-drm* > > cat seqlock.diff | patch -p1 > > > > Hi, > > Here is one more debug patch you can try. See if you get that print > added in the patch in dmesg. > > --HPS > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c > index a6e0a16ae..0697d70f4 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c > _at__at_ -31,6 +31,8 _at__at_ > #include "amdgpu_vm.h" > #include "amdgpu_amdkfd.h" > > +#include <sys/kdb.h> > + > /* Special VM and GART address alignment needed for VI pre-Fiji due to > * a HW bug. > */ > _at__at_ -236,6 +238,12 _at__at_ static int amdgpu_amdkfd_remove_eviction_fence(struct amdgpu_bo *bo, > *ef_count = 0; > } > > + if (resv != NULL && > + (struct thread *)SX_OWNER(resv->lock.base.sx.sx_lock) != curthread) { This is really should be spelled as sx_xlocked(). > + printf("Called unlocked\n"); > + kdb_backtrace(); > + } > + > old = reservation_object_get_list(resv); > if (!old) > return 0; > _______________________________________________ > freebsd-current_at_freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org"Received on Mon Nov 11 2019 - 11:29:05 UTC
This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:41:22 UTC