On 09/22/2014 02:38 AM, Maarten Lankhorst wrote:
Op 18-09-14 om 22:07 schreef Ted Percival:
Hi, I noticed a regression in the next-20140903 kernel that was not present in next-20140902. When Xorg starts up, the display is garbled (or contains old image bits) and I see a page fault in the kernel log. X is not usable in this state - there is no pointer and gdm doesn't come up. It works fine after Xorg (gdm3) is restarted. The fault is still present in next-20140918.
[drm] Initialized nouveau 1.2.0 20120801 for 0000:01:00.0 on minor 0 nouveau E[ PFIFO][0000:01:00.0] read fault at 0x0001260000 [PAGE_NOT_PRESENT] from PGRAPH/GPC0/TEX on channel 0x001fcd1000 [Xorg[3874]] nouveau E[ PFIFO][0000:01:00.0] PGRAPH engine fault on channel 2, recovering... nouveau E[ PGRAPH][0000:01:00.0] TRAP ch 2 [0x001fcd1000 Xorg[3874]] nouveau E[ PGRAPH][0000:01:00.0] GPC0/TPC0/TEX: 0x80000041
My hardware is: NVIDIA Corporation GF119 [Quadro NVS 4200M] (rev a1)
Does this patch fix things?
diff --git a/drivers/gpu/drm/nouveau/nv84_fence.c b/drivers/gpu/drm/nouveau/nv84_fence.c index 7b372a68aa4e..2a372b08ae44 100644 --- a/drivers/gpu/drm/nouveau/nv84_fence.c +++ b/drivers/gpu/drm/nouveau/nv84_fence.c @@ -159,8 +159,6 @@ nv84_fence_context_new(struct nouveau_channel *chan) ret = nouveau_bo_vma_add(bo, cli->vm, &fctx->dispc_vma[i]); }
- nouveau_bo_wr32(priv->bo, chan->chid * 16/4, 0x00000000);
- if (ret) nv84_fence_context_del(chan); return ret;
Yes, this fixes the problem.