[mythtv-users] mythfrontend crashes under KVM

Mon Aug 3 14:01:10 UTC 2020

On 2020-08-03 23:24, Stuart Auchterlonie wrote:
> On 01/08/2020 23:28, Eyal Lebedinsky wrote:
>> Ping.
>>
>> I'll make this simple then: Is anyone running mythfrontend in a kvm guest?
>> What fe and kvm video setups?
>>
> 
> Yes it can be done, i have done it with f32 for testing purposes.
> 
> What distro & version combo are you running?

f32, x86_64, xfce. It is a very old fedora install that was upgraded for over 10 years.

> Regards
> Stuart
> 
> 
>> TIA,
>>      Eyal
>>
>> On 2020-07-30 20:08, Eyal Lebedinsky wrote:
>>> I recently shifted my workstation from a physical machine into a
>>> virtual machine (KVM).
>>> Most things work now, but playing a recording causes a crash.
>>> The same recording plays fine using vlc and mplayer.
>>> The GUI shows OK until I try to play a recording.
>>> Interestingly the audio starts playing for a few seconds before the
>>> abort, with a black screen.
>>>
>>> I tried different display methods in the KVM settings (Display Spice,
>>> Video QXL).
>>> I now get a process abort rather than the crash I saw earlier.
>>>
>>> The display is set to 4k resolution, but the myth canvas is set to
>>> just HD (1920x1080).
>>> Also: Setup - Video - Playback
>>>       "Current Video Playback Profile" is "High Quality"
>>> I tested other profiles with similar failure.
>>>
>>> I am on fedora 32 KVM host and guest.
>>>
>>> A few examples of messages when attempting to play a recording. The
>>> first caused a crash, the others just aborted.
>>> =====================
>>> Jul 30 12:48:58 e4 mythfrontend[10839]: "Display: Requesting EGL for
>>> 'Mesa Project, 1.4'"
>>> Jul 30 12:49:07 e4 mythfrontend[10839]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 12:49:07 e4 mythfrontend[10839]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 12:49:17 e4 mythfrontend[10839]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 12:49:17 e4 mythfrontend[10839]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 12:49:17 e4 mythfrontend[10839]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 12:49:18 e4 mythfrontend[10839]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 12:49:18 e4 mythfrontend[10839]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 12:49:18 e4 mythfrontend[10839]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 12:49:21 e4 mythfrontend[10839]: The X11 connection broke
>>> (error 4). Did the X11 server die?
>>> Jul 30 12:49:22 e4 mythfrontend[10839]: QMutex: destroying locked mutex
>>> Jul 30 12:49:22 e4 mythfrontend[10839]: QWaitCondition::wait(): mutex
>>> lock failure (Invalid argument)
>>> Jul 30 12:49:22 e4 mythfrontend[10839]: QWaitCondition::wait(): mutex
>>> unlock failure (Invalid argument)
>>> Jul 30 12:49:22 e4 mythfrontend[10839]: QWaitCondition::wait(): cv
>>> wait failure (Invalid argument)
>>> Jul 30 12:49:23 e4 mythfrontend[10839]: ASSERT: "!isEmpty()" in file
>>> /usr/include/qt5/QtCore/qlist.h, line 369
>>> Jul 30 12:50:21 e4 audit[10908]: ANOM_ABEND auid=500 uid=500 gid=500
>>> ses=1 pid=10908 comm="Logger" exe="/usr/bin/mythfrontend" sig=6 res=1
>>> Jul 30 12:50:21 e4 kernel: audit: type=1701 audit(1596077421.245:355):
>>> auid=500 uid=500 gid=500 ses=1 pid=10908 comm="Logger"
>>> exe="/usr/bin/mythfrontend" sig=6 res=1
>>> Jul 30 12:51:10 e4 systemd-coredump[10969]: Process 10908
>>> (mythfrontend) of user 500 dumped core.#012#012Stack trace of thread
>>> 10917:#012#0  0x00007f3df0ba59e5 n/a (n/a + 0x0)
>>> Jul 30 12:53:06 e4 audit[11015]: ANOM_ABEND auid=500 uid=500 gid=500
>>> ses=1 pid=11015 comm="PlaybackBoxHelp" exe="/usr/bin/mythfrontend"
>>> sig=11 res=1
>>> Jul 30 12:53:06 e4 kernel: audit: type=1701 audit(1596077586.572:364):
>>> auid=500 uid=500 gid=500 ses=1 pid=11015 comm="PlaybackBoxHelp"
>>> exe="/usr/bin/mythfrontend" sig=11 res=1
>>> Jul 30 12:53:54 e4 systemd-coredump[11080]: Process 11015
>>> (mythfrontend) of user 500 dumped core.#012#012Stack trace of thread
>>> 11067:#012#0  0x00007f0e8aaf64b0 n/a (n/a + 0x0)
>>> =====================
>>> Jul 30 19:38:20 e4 mythfrontend[3614]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:38:20 e4 mythfrontend[3614]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:38:31 e4 mythfrontend[3614]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:38:31 e4 mythfrontend[3614]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:38:31 e4 mythfrontend[3614]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:38:32 e4 mythfrontend[3614]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:38:32 e4 mythfrontend[3614]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:38:32 e4 mythfrontend[3614]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:38:33 e4 mythfrontend[3614]: The X11 connection broke (error
>>> 4). Did the X11 server die?
>>> Jul 30 19:38:33 e4 mythfrontend[3614]: QWaitCondition: mutex destroy
>>> failure (Device or resource busy)
>>> Jul 30 19:38:33 e4 mythfrontend[3614]: ASSERT: "!isEmpty()" in file
>>> /usr/include/qt5/QtCore/qlist.h, line 369
>>> =====================
>>> Jul 30 19:41:02 e4 mythfrontend[3705]: "Display: Requesting EGL for
>>> 'Mesa Project, 1.4'"
>>> Jul 30 19:41:10 e4 mythfrontend[3705]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:41:10 e4 mythfrontend[3705]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:41:14 e4 mythfrontend[3705]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:41:14 e4 mythfrontend[3705]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:41:14 e4 mythfrontend[3705]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:41:14 e4 mythfrontend[3705]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:41:14 e4 mythfrontend[3705]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:41:14 e4 mythfrontend[3705]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:41:14 e4 mythfrontend[3705]: The X11 connection broke (error
>>> 4). Did the X11 server die?
>>> Jul 30 19:41:16 e4 mythfrontend[3705]: ASSERT: "!isEmpty()" in file
>>> /usr/include/qt5/QtCore/qlist.h, line 369
>>> =====================
>>> Jul 30 19:43:45 e4 mythfrontend[3786]: "Display: Requesting EGL for
>>> 'Mesa Project, 1.4'"
>>> Jul 30 19:43:53 e4 mythfrontend[3786]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:43:53 e4 mythfrontend[3786]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:43:57 e4 mythfrontend[3786]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:43:57 e4 mythfrontend[3786]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:43:57 e4 mythfrontend[3786]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:43:57 e4 mythfrontend[3786]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:43:57 e4 mythfrontend[3786]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:43:57 e4 mythfrontend[3786]: libpng warning: iCCP: known
>>> incorrect sRGB profile
>>> Jul 30 19:43:58 e4 mythfrontend[3786]: The X11 connection broke (error
>>> 4). Did the X11 server die?
>>> Jul 30 19:44:02 e4 mythfrontend[3786]: QMutex: destroying locked mutex
>>> Jul 30 19:44:02 e4 mythfrontend[3786]: QWaitCondition::wait(): mutex
>>> lock failure (Invalid argument)
>>> Jul 30 19:44:02 e4 mythfrontend[3786]: QWaitCondition::wait(): mutex
>>> unlock failure (Invalid argument)
>>> Jul 30 19:44:02 e4 mythfrontend[3786]: QWaitCondition::wait(): cv wait
>>> failure (Invalid argument)
>>> Jul 30 19:44:02 e4 mythfrontend[3786]: ASSERT: "!isEmpty()" in file
>>> /usr/include/qt5/QtCore/qlist.h, line 369
>>> =====================
>>>
>>> TIA
-- 
Eyal Lebedinsky (eyal at eyal.emu.id.au)