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<base href="https://bugs.freedesktop.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [amdgpu][tonga] display freezes soon after X start"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96445">96445</a>
</td>
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<tr>
<th>Summary</th>
<td>[amdgpu][tonga] display freezes soon after X start
</td>
</tr>
<tr>
<th>Product</th>
<td>DRI
</td>
</tr>
<tr>
<th>Version</th>
<td>DRI git
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>DRM/AMDgpu
</td>
</tr>
<tr>
<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>csaba.halasz@gmail.com
</td>
</tr></table>
<p>
<div>
<pre>Starting X and just trying to do general stuff leads to display freeze within
minutes. Most of the time nothing in syslog but during bisecting I have at
least once seen this message which might be unrelated:
[drm:process_one_work] *ERROR* ring sdma1 timeout, last signaled seq=144370,
last emitted seq=144370
Initially I got an RCU stall message:
INFO: rcu_sched detected stalls on CPUs/tasks:
3-...: (13593 GPs behind) idle=561/140000000000000/0 softirq=0/0
fqs=14996
5-...: (13593 GPs behind) idle=2e7/140000000000000/0 softirq=0/0
fqs=14996
(detected by 0, t=15002 jiffies, g=13293, c=13292, q=0)
Task dump for CPU 3:
sdma1 R running task 0 499 2 0x00080008
ffffffff810f83fb ffff8803e02de580 ffffffffa0333d01 ffff8800b9d1c110
ffff8800b89a3c00 ffff8800b89a3cd8 0000000000000000 ffff8800b9d1c110
ffffffffa036812b ffff8800b9fd58b8 ffffffff813c66bf ffff8800b9fd58b8
Call Trace:
[<ffffffff810f83fb>] ? kmem_cache_free+0xab/0xc0
[<ffffffffa0333d01>] ? amdgpu_sync_get_fence+0x51/0xc0 [amdgpu]
[<ffffffffa036812b>] ? amdgpu_job_dependency+0x2b/0xb0 [amdgpu]
[<ffffffff813c66bf>] ? _raw_spin_lock_irqsave+0x1f/0x30
[<ffffffffa0367643>] ? amd_sched_main+0x1a3/0x3f0 [amdgpu]
[<ffffffff81077310>] ? add_wait_queue+0x60/0x60
[<ffffffffa03674a0>] ? amd_sched_process_job+0x70/0x70 [amdgpu]
[<ffffffff8105fbbc>] ? kthread+0xbc/0xe0
[<ffffffff813c6b02>] ? ret_from_fork+0x22/0x40
[<ffffffff8105fb00>] ? kthread_stop+0x70/0x70
Task dump for CPU 5:
kworker/5:1 R running task 0 143 2 0x00080008
Workqueue: events amd_sched_job_finish [amdgpu]
ffff88043ed57900 0000000000000000 ffffffff81059ae2 0000000000000018
ffff88042b4e0000 ffff88042b982d00 ffff88043ed53420 ffff88042b982d00
ffff88042b982d00 ffff88043ed53400 ffff8800ba673d80 ffff8800ba673db0
Call Trace:
[<ffffffff81059ae2>] ? process_one_work+0x132/0x350
[<ffffffff8105b3fe>] ? worker_thread+0x11e/0x430
[<ffffffff8105b2e0>] ? create_worker+0x180/0x180
[<ffffffff8105fbbc>] ? kthread+0xbc/0xe0
[<ffffffff813c6b02>] ? ret_from_fork+0x22/0x40
[<ffffffff8105fb00>] ? kthread_stop+0x70/0x70
During bisecting I probably did not wait long enough for this to show up
(apparently it's configured for 1 minute).
According to git bisect:
8df07daf3952b7606e2d17076198ec3fb38ab1f1 is the first bad commit
commit 8df07daf3952b7606e2d17076198ec3fb38ab1f1
Date: Thu May 19 09:54:15 2016 +0200
drm/amdgpu: fix and cleanup job destruction
kernel agd5f/drm-next-4.8-wip
mesa git 65c2abf6fdd51b0a80a72caa0c52cf3f4578e743
llvm git ef1f2996c17c9b1480201239002b58851810e8fc
xf86-video-amdgpu git 60ced5026ebc34d9f32c7618430b6a7ef7c8eb4b
Xorg 1.18.0
mplayer svn r37870
gigabyte 380 (tonga)</pre>
</div>
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