Strange. I tested X with ~120 glxgears instances which got killed and
restarted every 60-120 seconds for the whole night, but without any
lockup or freeze.
What's the kernel backtrace when this happens? If I understand you
correctly X is killable in that situation, is that right?
Please try the following:
echo 1 >
/sys/kernel/debug/tracing/events/radeon/radeon_fence_wait_begin/enable
echo 1 >
/sys/kernel/debug/tracing/events/radeon/radeon_fence_wait_end/enable
before starting X. And when X freezed "cat /sys/kernel/debug/tracing/trace".
Thanks,
Christian.
Am 15.10.2013 12:57, schrieb Marek Olšák:
They are not lockups. X just freezes in GEM_WAIT. The only way to
reproduce it is to apply the patches, use the computer and wait. It
looks like a fence is not signalled and the process calling GEM_WAIT
is not woken up.
Marek
On Tue, Oct 15, 2013 at 11:11 AM, Christian König
<deathsimple@xxxxxxxxxxx> wrote:
Mhm hard to say what's going wrong this time, but we probably need to fix it
before the final release.
Do you have a kernel backtrace from the lockups? Or at least some way to
reproduce it?
Christian.
Am 14.10.2013 21:34, schrieb Marek Olšák:
Ooops, the new problem is not so rare. It has now happened to me 3
times in an hour.
Marek
On Mon, Oct 14, 2013 at 9:13 PM, Marek Olšák <maraeo@xxxxxxxxx> wrote:
I tested this and had over 1546 lockups followed by a successful GPU
reset. Then the kernel probably crashed (judging by the fact ssh was
dead). Still, it's pretty impressive.
There is a new problem though. The X server sometimes gets stuck in
GEM_WAIT and waits forever, even if there were no lockups before. It
occurs very rarely though. I didn't see this issue without your
patches.
Marek
On Mon, Oct 14, 2013 at 11:32 AM, Christian König
<deathsimple@xxxxxxxxxxx> wrote:
From: Christian König <christian.koenig@xxxxxxx>
Stop leaking IB memory and scratch register space when the test fails.
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
drivers/gpu/drm/radeon/cik.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index b874ccd..8f393df 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -3182,6 +3182,7 @@ int cik_ib_test(struct radeon_device *rdev, struct
radeon_ring *ring)
r = radeon_ib_get(rdev, ring->idx, &ib, NULL, 256);
if (r) {
DRM_ERROR("radeon: failed to get ib (%d).\n", r);
+ radeon_scratch_free(rdev, scratch);
return r;
}
ib.ptr[0] = PACKET3(PACKET3_SET_UCONFIG_REG, 1);
@@ -3198,6 +3199,8 @@ int cik_ib_test(struct radeon_device *rdev, struct
radeon_ring *ring)
r = radeon_fence_wait(ib.fence, false);
if (r) {
DRM_ERROR("radeon: fence wait failed (%d).\n", r);
+ radeon_scratch_free(rdev, scratch);
+ radeon_ib_free(rdev, &ib);
return r;
}
for (i = 0; i < rdev->usec_timeout; i++) {
--
1.8.1.2
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