[Bug 27866] New: d-r-t crashes at radeon_bo_unref()

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=27866

           Summary: d-r-t crashes at radeon_bo_unref()
           Product: DRI
           Version: XOrg CVS
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel at lists.freedesktop.org
        ReportedBy: aidan at cisco.com


latest d-r-t pull (that had pm3 merged) crashes often in the last few hours on
my rv790 with the same backtrace, doesn't seem to last more than 30 mins uptime
doing normal boring desktop tasks. this is with dynpm=1.  will try without
dynpm.

[ 5297.309664] [drm] Requested: e: 80000 m: 97500 p: 16
[ 5297.344857] [drm] not in vbl for pm change 00020002 at entry
[ 5297.345295] [drm] Setting: e: 80000
[ 5297.945372] [drm] Requested: e: 50000 m: 97500 p: 16
[ 5298.162501] [drm] not in vbl for pm change 00020002 at entry
[ 5298.162941] [drm] Setting: e: 50000
[ 5298.562080] [drm] Requested: e: 50000 m: 97500 p: 16
[ 5318.273565] BUG: unable to handle kernel paging request at 0000000000001c18
[ 5318.273569] IP: [<ffffffff814db764>] mutex_unlock+0x1/0x18
[ 5318.273574] PGD 2218b5067 PUD 33b06a067 PMD 0 
[ 5318.273576] Oops: 0002 [#1] SMP 
[ 5318.273578] last sysfs file:
/sys/devices/pci0000:00/0000:00:1d.7/usb2/2-3/2-3:1.0/host6/target6:0:0/6:0:0:0/block/sdc/size
[ 5318.273580] CPU 0 
[ 5318.273581] Modules linked in: ipt_MASQUERADE iptable_nat nf_nat
nf_conntrack_ipv4 nf_defrag_ipv4 ipt_addrtype xt_DSCP xt_dscp xt_NFQUEUE
xt_MARK xt_mark xt_iprange xt_conntrack xt_CONNMARK xt_connmark nf_conntrack
ip_tables autofs4 bridge stp llc tun kvm_intel kvm coretemp radeon ttm
drm_kms_helper drm asus_atk0110 snd_ctxfi sky2 i2c_algo_bit cfbcopyarea
cfbimgblt cfbfillrect
[ 5318.273597] 
[ 5318.273599] Pid: 2780, comm: X Not tainted 2.6.34-rc5 #2 P6T DELUXE
V2/System Product Name
[ 5318.273600] RIP: 0010:[<ffffffff814db764>]  [<ffffffff814db764>]
mutex_unlock+0x1/0x18
[ 5318.273603] RSP: 0018:ffff880209d53c58  EFLAGS: 00010206
[ 5318.273604] RAX: ffff8801779d8a00 RBX: ffff880209d53ca0 RCX:
ffff8801779da600
[ 5318.273606] RDX: ffff88033d320000 RSI: ffff880002000000 RDI:
0000000000001c00
[ 5318.273607] RBP: ffff880209d53c88 R08: 0000000000000000 R09:
0000000040086409
[ 5318.273608] R10: 0000000000000001 R11: dead000000200200 R12:
ffff88033a538800
[ 5318.273610] R13: ffff88033a538820 R14: ffff880177e92a80 R15:
ffffffffa0069400
[ 5318.273611] FS:  00007fae348c3840(0000) GS:ffff880002000000(0000)
knlGS:0000000000000000
[ 5318.273613] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5318.273614] CR2: 0000000000001c18 CR3: 0000000209cb6000 CR4:
00000000000006f0
[ 5318.273616] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 5318.273617] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[ 5318.273619] Process X (pid: 2780, threadinfo ffff880209d52000, task
ffff88033b9f5b80)
[ 5318.273620] Stack:
[ 5318.273621]  ffff880209d53c88 ffffffffa00d47c3 0000000000000282
0000000000000000
[ 5318.273623] <0> ffff880209d53c88 ffff880177e92a80 ffff880209d53cb8
ffffffffa00e4575
[ 5318.273625] <0> ffff8801792fa88c ffff8801779d8a00 ffff880209d53cb8
ffff880177e92a80
[ 5318.273627] Call Trace:
[ 5318.273642]  [<ffffffffa00d47c3>] ? radeon_bo_unref+0x4e/0x63 [radeon]
[ 5318.273655]  [<ffffffffa00e4575>] radeon_gem_object_free+0x30/0x47 [radeon]
[ 5318.273661]  [<ffffffffa005468c>] drm_gem_object_free_unlocked+0x54/0x64
[drm]
[ 5318.273666]  [<ffffffffa0054638>] ? drm_gem_object_free_unlocked+0x0/0x64
[drm]
[ 5318.273670]  [<ffffffff8128b965>] kref_put+0x43/0x4d
[ 5318.273675]  [<ffffffffa0054812>]
drm_gem_object_unreference_unlocked+0x15/0x17 [drm]
[ 5318.273680]  [<ffffffffa005484f>]
drm_gem_object_handle_unreference_unlocked+0x29/0x2d [drm]
[ 5318.273686]  [<ffffffffa0054a34>] drm_gem_close_ioctl+0x66/0x71 [drm]
[ 5318.273691]  [<ffffffffa005352b>] drm_ioctl+0x245/0x33e [drm]
[ 5318.273696]  [<ffffffffa00549ce>] ? drm_gem_close_ioctl+0x0/0x71 [drm]
[ 5318.273699]  [<ffffffff81253d06>] ? inode_has_perm+0x5f/0x61
[ 5318.273702]  [<ffffffff810c93b7>] ? free_pages_and_swap_cache+0x21/0x7b
[ 5318.273704]  [<ffffffff81289485>] ? cpumask_any_but+0x29/0x36
[ 5318.273707]  [<ffffffff810ea534>] vfs_ioctl+0x2d/0xa1
[ 5318.273709]  [<ffffffff810eaa76>] do_vfs_ioctl+0x457/0x49d
[ 5318.273711]  [<ffffffff810eab0d>] sys_ioctl+0x51/0x74
[ 5318.273713]  [<ffffffff810029ab>] system_call_fastpath+0x16/0x1b
[ 5318.273715] Code: 89 65 a0 48 8d 46 28 89 5d a8 48 c7 45 c0 cf 40 05 81 48
89 45 c8 48 89 45 d0 e8 21 ff ff ff 48 83 c4 58 5b 41 5c 41 5d c9 c3 55 <48> c7
47 18 00 00 00 00 48 89 e5 f0 ff 07 7f 05 e8 02 00 00 00 
[ 5318.273731] RIP  [<ffffffff814db764>] mutex_unlock+0x1/0x18
[ 5318.273733]  RSP <ffff880209d53c58>
[ 5318.273734] CR2: 0000000000001c18
[ 5318.273735] ---[ end trace ccc350f8e0304ab4 ]---

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