This issue will happen in following logs:
1Unable to handle kernel paging request at
virtual address 00008800e0008010
CPU 0 kworker/0:3(131): Oops 0
pc = [<ffffffff811bea5c>] ra =
[<ffffffff81240844>] ps = 0000 Tainted: G W
pc is at si_gpu_check_soft_reset+0x3c/0x240
ra is at si_dma_is_lockup+0x34/0xd0
v0 = 0000000000000000 t0 = fff08800e0008010 t1
= 0000000000010000
t2 = 0000000000008010 t3 = fff00007e3c00000 t4
= fff00007e3c00258
t5 = 000000000000ffff t6 = 0000000000000001 t7
= fff00007ef078000
s0 = fff00007e3c016e8 s1 = fff00007e3c00000 s2
= fff00007e3c00018
s3 = fff00007e3c00000 s4 = fff00007fff59d80 s5
= 0000000000000000
s6 = fff00007ef07bd98
a0 = fff00007e3c00000 a1 = fff00007e3c016e8 a2
= 0000000000000008
a3 = 0000000000000001 a4 = 8f5c28f5c28f5c29 a5
= ffffffff810f4338
t8 = 0000000000000275 t9 = ffffffff809b66f8
t10 = ff6769c5d964b800
t11= 000000000000b886 pv = ffffffff811bea20 at
= 0000000000000000
gp = ffffffff81d89690 sp = 00000000aa814126
4Disabling lock debugging due to kernel taint
Trace:
[<ffffffff81240844>]
si_dma_is_lockup+0x34/0xd0
[<ffffffff81119610>]
radeon_fence_check_lockup+0xd0/0x290
[<ffffffff80977010>]
process_one_work+0x280/0x550
[<ffffffff80977350>]
worker_thread+0x70/0x7c0
[<ffffffff80977410>]
worker_thread+0x130/0x7c0
[<ffffffff80982040>] kthread+0x200/0x210
[<ffffffff809772e0>]
worker_thread+0x0/0x7c0
[<ffffffff80981f8c>] kthread+0x14c/0x210
[<ffffffff80911658>]
ret_from_kernel_thread+0x18/0x20
[<ffffffff80981e40>] kthread+0x0/0x210
Code: ad3e0008 43f0074a ad7e0018 ad9e0020
8c3001e8 40230101
<88210000> 4821ed21
So force lockup work queue flush to fix this
problem.
---
drivers/gpu/drm/radeon/radeon_device.c | 3 +++
1 file changed, 3 insertions(+)
diff --git
a/drivers/gpu/drm/radeon/radeon_device.c
b/drivers/gpu/drm/radeon/radeon_device.c
index 59c8a6647ff2..cc1c07963116 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1625,6 +1625,9 @@ int
radeon_suspend_kms(struct drm_device *dev, bool suspend,
if (r) {
/*
delay GPU reset to resume */
radeon_fence_driver_force_completion(rdev,
i);
+ } else {
+ /*
finish executing delayed work */
+ flush_delayed_work(&rdev->fence_drv[i].lockup_work);
}
}
--
2.17.1