[Bug 151341] New: AMDGPU Hawaii: screen freeze, Xorg blocked in fence_default_wait

* [Bug 151341] New: AMDGPU Hawaii: screen freeze, Xorg blocked in fence_default_wait
@ 2016-08-03  6:32 bugzilla-daemon
  2016-08-03 13:20 ` [Bug 151341] " bugzilla-daemon
                   ` (6 more replies)
  0 siblings, 7 replies; 8+ messages in thread
From: bugzilla-daemon @ 2016-08-03  6:32 UTC (permalink / raw)
  To: dri-devel

https://bugzilla.kernel.org/show_bug.cgi?id=151341

            Bug ID: 151341
           Summary: AMDGPU Hawaii: screen freeze, Xorg blocked in
                    fence_default_wait
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.7.0
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: yshuiv7@gmail.com
        Regression: No

The system is still operational, and I was able to login remotely via ssh.

Seems to happen more often when the CPU is under load.

Relevant dmesg:

INFO: task Xorg:539 blocked for more than 120 seconds.
      Not tainted 4.7.0 #5
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Xorg            D ffff880085387a48     0   539    537 0x00080084
 ffff880085387a48 ffff880392f1ea40 0000000000000000 ffff880085388000
 ffff88045e658000 ffff88045e658000 ffff880062516840 7fffffffffffffff
 ffff880085387a60 ffffffff815e5dd0 0000000000000000 ffff880085387ad8
Call Trace:
 [<ffffffff815e5dd0>] schedule+0x30/0x80
 [<ffffffff815e8429>] schedule_timeout+0x159/0x1a0
 [<ffffffff810a956e>] ? __wake_up_locked+0xe/0x10
 [<ffffffff8144b452>] fence_default_wait+0x182/0x1d0
 [<ffffffff8144adf0>] ? fence_free+0x20/0x20
 [<ffffffff8144af9e>] fence_wait_timeout+0x4e/0x90
 [<ffffffffc02d89dd>] amdgpu_ctx_add_fence+0x5d/0x100 [amdgpu]
 [<ffffffffc02cad00>] amdgpu_cs_ioctl+0xbf0/0xff0 [amdgpu]
 [<ffffffff813e978d>] drm_ioctl+0x14d/0x530
 [<ffffffffc02ca110>] ? amdgpu_cs_find_mapping+0x90/0x90 [amdgpu]
 [<ffffffff81171b6a>] ? do_readv_writev+0x11a/0x200
 [<ffffffffc02b2047>] amdgpu_drm_ioctl+0x47/0x80 [amdgpu]
 [<ffffffff81182ebd>] do_vfs_ioctl+0x8d/0x570
 [<ffffffff81001255>] ? syscall_slow_exit_work+0xb5/0x100
 [<ffffffff8153ea5d>] ? __sys_recvmsg+0x5d/0x70
 [<ffffffff810fbec6>] ? __audit_syscall_entry+0xa6/0xf0
 [<ffffffff811833dc>] SyS_ioctl+0x3c/0x70
 [<ffffffff8100179a>] do_syscall_64+0x5a/0x110
 [<ffffffff815e9040>] entry_SYSCALL64_slow_path+0x25/0x25

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