[Bug 91279] agd5f drm tonga occasional traps error:0 in libdrm_amdgpu.so.1.0.0

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91279

--- Comment #2 from Andy Furniss <adf.lists at gmail.com> ---
(In reply to Michel Dänzer from comment #1)
> Can you get a gdb backtrace of such a crash?

Yea - should have thought to enable core dumps.

So it seems it's flash (even though I have an apparently functioning flashblock
enabled in seamonkey)

Core was generated by `/usr/lib/seamonkey-2.33.1/plugin-container
/usr/lib/mozilla/plugins/libflashpla'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  list_del (item=0x5a5a5a5a5a5a5a5a) at ../util_double_list.h:79
79          item->prev->next = item->next;
(gdb) bt
#0  list_del (item=0x5a5a5a5a5a5a5a5a) at ../util_double_list.h:79
#1  amdgpu_vamgr_deinit (mgr=0x7fa26ec0b4c0 <vamgr>) at amdgpu_vamgr.c:47
#2  amdgpu_vamgr_reference (dst=0x7fa274e19ea0, src=0x0) at amdgpu_vamgr.c:67
#3  0x00007fa26ea07d82 in amdgpu_device_free_internal (dev=0x7fa274e19c00) at
amdgpu_device.c:228
#4  0x00007fa26ea07e09 in amdgpu_device_reference
(dst=dst at entry=0x7ffd04cca7a8, src=src at entry=0x0) at amdgpu_device.c:246
#5  0x00007fa26ea08125 in amdgpu_device_deinitialize (dev=0x7fa274e19c00) at
amdgpu_device.c:238
#6  0x00007fa26f54fa1f in amdgpu_winsys_destroy (rws=0x7fa274e91800) at
amdgpu_winsys.c:296
#7  0x00007fa26f553f5f in r600_destroy_common_screen (rscreen=0x7fa274e1a000)
at r600_pipe_common.c:963
#8  0x00007fa26f46a7a1 in vl_screen_destroy (vscreen=0x7fa274e2cb00) at
vl/vl_winsys_dri.c:431
#9  0x00007fa26f464776 in vlVdpDeviceFree (dev=dev at entry=0x7fa274eb3140) at
device.c:230
#10 0x00007fa26f464874 in DeviceReference (dev=0x0, ptr=<synthetic pointer>) at
vdpau_private.h:553
#11 vlVdpDeviceDestroy (device=1) at device.c:215
#12 0x00007fa273ea8df8 in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so
#13 0x00007fa273b08475 in ?? () from /usr/lib/mozilla/plugins/libflashplayer.so

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