Mailing List Archive

On 14/08/2020 13:33, Tim Draper wrote:
> just updated one of my rpi4's and i'm now getting segfault. running
> raspbian, upgrade done via 'apt upgrade'.
> Mythtv is setup from PBennets rpi repo, latest version is
> v31.0-54-g445cf1fe6b.
>
> $ QT_QPA_PLATFORM=eglfs mythfrontend --logpath=/tmp -O libCECEnabled=0
> Failed to move cursor on screen HDMI1: -13
> 2020-08-14 13:24:22.439101 I  Setup Interrupt handler
> 2020-08-14 13:24:22.439169 I  Setup Terminated handler
> 2020-08-14 13:24:22.439187 I  Setup Segmentation fault handler
> 2020-08-14 13:24:22.439204 I  Setup Aborted handler
> 2020-08-14 13:24:22.439220 I  Setup Bus error handler
> 2020-08-14 13:24:22.439238 I  Setup Floating point exception handler
> 2020-08-14 13:24:22.439255 I  Setup Illegal instruction handler
> 2020-08-14 13:24:22.439274 I  Setup Real-time signal 0 handler
> 2020-08-14 13:24:22.439296 I  Setup User defined signal 1 handler
> 2020-08-14 13:24:22.439313 I  Setup User defined signal 2 handler
> 2020-08-14 13:24:22.439329 I  Setup Hangup handler
> 2020-08-14 13:24:22.439600 C  mythfrontend version: fixes/31
> [v31.0-54-g445cf1fe6b] www.mythtv.org <http://www.mythtv.org>
> 2020-08-14 13:24:22.439618 C  Qt version: compile: 5.11.3,
> runtime: 5.11.3
> 2020-08-14 13:24:22.439741 I  Raspbian GNU/Linux 10 (buster) (arm)
> 2020-08-14 13:24:22.439748 N  Enabled verbose msgs: general
> 2020-08-14 13:24:22.440028 N  Setting Log Level to LOG_INFO
> 2020-08-14 13:24:22.450737 I  Added logging to the console
> 2020-08-14 13:24:22.450803 N  Using runtime prefix = /usr
> 2020-08-14 13:24:22.450814 N  Using configuration directory =
> /home/pi/.mythtv
> 2020-08-14 13:24:22.450926 I  Assumed character encoding: en_GB.UTF-8
> 2020-08-14 13:24:22.451046 N  Setting 'libCECEnabled' being forced
> to '0'
> 2020-08-14 13:24:22.451851 I  Added logging to
> /tmp/mythfrontend.20200814122422.1111.log
> 2020-08-14 13:24:22.452537 I  Loading en_gb translation for module
> mythfrontend
> 2020-08-14 13:24:22.453202 I  Empty LocalHostName. This is typical.
> 2020-08-14 13:24:22.453226 I  Using a profile name of: 'myth-fe5'
> (Usually the same as this host's name.)
> 2020-08-14 13:24:22.453447 I  Start up testing connections. DB
> sql, BE , attempt 0, status dbAwake, Delay: 2000
> 2020-08-14 13:24:23.993694 N  Setting QT default locale to en_GB
> 2020-08-14 13:24:23.993778 I  Current locale en_GB
> 2020-08-14 13:24:23.994040 N  Reading locale defaults from
> /usr/share/mythtv//locales/en_gb.xml
> 2020-08-14 13:24:24.018182 I  Display: Found screen 'HDMI1'
> 2020-08-14 13:24:24.018268 I  Display: Using screen 'HDMI1' (Make:
> Goldstar Company Ltd Model: LG TV)
> 2020-08-14 13:24:24.018343 I  Display: Qt screen pixel ratio: 1.00
> 2020-08-14 13:24:24.018414 I  Display: Geometry: 1920x1080+0+0
> Size(Qt): 1600mmx900mm
> 2020-08-14 13:24:24.020199 I  DisplayRPI: Connected to display 'HDMI1'
> 2020-08-14 13:24:24.049514 I  EDID: Version:1.3 Size:256 Exensions:1
> 2020-08-14 13:24:24.049559 I  EDID: Gamma:2.2 sRGB:1
> 2020-08-14 13:24:24.049592 I  EDID: Display chromaticity:-
> 2020-08-14 13:24:24.049620 I  EDID: Red:        0.6396, 0.3301
> 2020-08-14 13:24:24.049646 I  EDID: Green:      0.2998, 0.5996
> 2020-08-14 13:24:24.049671 I  EDID: Blue:       0.1504, 0.0596
> 2020-08-14 13:24:24.049695 I  EDID: White:      0.3125, 0.3291
> 2020-08-14 13:24:24.049724 I  EDID: Physical address: 3.0.0.0
> 2020-08-14 13:24:24.051811 N  Display: Desktop video mode:
> 1920x1080 60.000Hz
> 2020-08-14 13:24:24.051838 N  Display: Display is using sRGB
> colourspace
> 2020-08-14 13:24:24.174871 E  PowerDBus: No UPower interface.
> Unable to monitor battery state
> 2020-08-14 13:24:24.193806 I  PowerDBus: Failed to delay
> sleep,shutdown: Permission denied
> 2020-08-14 13:24:24.233796 I  Power: On AC power
> 2020-08-14 13:24:24.233826 I  Power: Supported actions: None
> 2020-08-14 13:24:24.233875 N  Setting 'libCECEnabled' being forced
> to '0'
> 2020-08-14 13:24:24.249316 E  Failed listening on TCP 0.0.0.0:6547
> - Error 8: The bound address is already in use
> 2020-08-14 13:24:24.249378 E  MediaRenderer: HttpServer Create Error
> 2020-08-14 13:24:24.262920 I  Loading en_gb translation for module
> mythfrontend
> 2020-08-14 13:24:24.271808 E  LIRC: Failed to connect to Unix
> socket '/var/run/lirc/lircd'
>                         eno: No such file or directory (2)
> 2020-08-14 13:24:24.271917 I  No joystick configuration found, not
> enabling joystick control
> 2020-08-14 13:24:24.271930 I  UDPListener: Enabling
> 2020-08-14 13:24:24.273093 E  Failed binding to UDP 0.0.0.0:6948 -
> Error 8: The bound address is already in use
> failed to export dumb buffer: Permission denied
> Failed to create scanout resource
> 2020-08-14 13:24:24.274859 E  Failed binding to UDP [::]:6948 -
> Error 8: The bound address is already in use
> 2020-08-14 13:24:24.329887 I  Using Frameless Window
> 2020-08-14 13:24:24.329897 I  Using Full Screen Window
> 2020-08-14 13:24:24.338308 I  Display: Have main widget
> 2020-08-14 13:24:24.338333 I  Display: Have main window
> 2020-08-14 13:24:24.339034 I  Display: Found screen 'HDMI1'
> 2020-08-14 13:24:24.340508 I  UI Screen Resolution: 1920 x 1080
> failed to export dumb buffer: Permission denied
> Failed to create scanout resource
> QOpenGLFramebufferObject: Framebuffer incomplete attachment.
> QOpenGLFramebufferObject: Framebuffer incomplete, missing attachment.
> 2020-08-14 13:24:24.433095 E  Failed to create framebuffer object
> 2020-08-14 13:24:24.433224 I  OpenGL: OpenGL vendor        : Broadcom
> 2020-08-14 13:24:24.433236 I  OpenGL: OpenGL renderer      : V3D 4.2
> 2020-08-14 13:24:24.433247 I  OpenGL: OpenGL version       :
> OpenGL ES 3.1 Mesa 19.3.2
> 2020-08-14 13:24:24.433264 I  OpenGL: Qt platform          : eglfs
> 2020-08-14 13:24:24.433352 I  OpenGL: EGL display          : Yes
> 2020-08-14 13:24:24.433361 I  OpenGL: EGL images           : Yes
> 2020-08-14 13:24:24.433370 I  OpenGL: Qt OpenGL format     :
> OpenGLES 3.1
> 2020-08-14 13:24:24.433379 I  OpenGL: Qt OpenGL surface    : RGBA:
> 8880 Depth: 0 Stencil: 0
> 2020-08-14 13:24:24.433389 I  OpenGL: Max texture size     : 4096
> 2020-08-14 13:24:24.433397 I  OpenGL: Max texture units    : 48
> 2020-08-14 13:24:24.433406 I  OpenGL: Shaders              : Yes
> 2020-08-14 13:24:24.433416 I  OpenGL: NPOT textures        : Yes
> 2020-08-14 13:24:24.433424 I  OpenGL: Multitexturing       : Yes
> 2020-08-14 13:24:24.433433 I  OpenGL: Rectangular textures : No
> 2020-08-14 13:24:24.433442 I  OpenGL: Buffer mapping       : Yes
> 2020-08-14 13:24:24.433451 I  OpenGL: Framebuffer objects  : Yes
> 2020-08-14 13:24:24.433459 I  OpenGL: 16bit framebuffers   : No
> 2020-08-14 13:24:24.433468 I  OpenGL: Unpack Subimage      : Yes
> 2020-08-14 13:24:24.433477 I  OpenGL: GL_RED/GL_R8         : Yes
> failed to export dumb buffer: Permission denied
> Failed to create scanout resource
> QEGLPlatformContext: eglSwapBuffers failed: 3003
> Could not lock GBM surface front buffer!
> failed to export dumb buffer: Permission denied
> Failed to create scanout resource
> QEGLPlatformContext: eglSwapBuffers failed: 3003
> Could not lock GBM surface front buffer!
> failed to export dumb buffer: Permission denied
> Failed to create scanout resource
> QEGLPlatformContext: eglSwapBuffers failed: 3003
> Could not lock GBM surface front buffer!
> 2020-08-14 13:24:24.482396 I  OpenGL: Initialised MythRenderOpenGL
> 2020-08-14 13:24:24.482415 I  OpenGL: Using full range output
> 2020-08-14 13:24:24.512929 I  MythUIHelper: Pruning cache
> directory: /home/pi/.mythtv/cache/remotecache
> 2020-08-14 13:24:24.513104 I  MythUIHelper: Kept 0 files, deleted
> 0 files, stat error on 0 files
> 2020-08-14 13:24:24.513129 I  MythUIHelper: Pruning cache
> directory: /home/pi/.mythtv/cache/thumbnails
> 2020-08-14 13:24:24.513200 I  MythUIHelper: Kept 0 files, deleted
> 0 files, stat error on 0 files
> 2020-08-14 13:24:24.610063 I
> MythCoreContext::ConnectCommandSocket(): Connecting to backend
> server: 192.168.1.149:6543 (try 1 of 1)
> 2020-08-14 13:24:24.612047 I MythCoreContext::CheckProtoVersion():
> Using protocol version 91 BuzzOff
> libpng error: Read Error
> libpng error: Read Error
> 2020-08-14 13:24:24.846886 I  CECAdapter: libCEC support is disabled.
> 2020-08-14 13:24:24.855576 I  Current MythTV Schema Version
> (DBSchemaVer): 1361
> 2020-08-14 13:24:24.861491 I  V4L2_M2M: Supported/available V4L2
> decoders:
> 2020-08-14 13:24:24.861515 I  V4L2_M2M: H264
> 2020-08-14 13:24:24.863465 I  MMAL: Supported/available MMAL decoders:
> 2020-08-14 13:24:24.863483 I  MMAL: H264
> Handling Segmentation fault
> Segmentation fault
>
> libpng-tools and libpng16-16 are installed (seemed to be the closest
> packages to the libpng error). worked before the upgrade but broken after.
>
>
I suspect the update installed a series 5.4 kernel (uname -a )

You need to add QT_QPA_EGLFS_ALWAYS_SET_MODE="1" to the command line i.e.

QT_QPA_EGLFS_ALWAYS_SET_MODE="1" QT_QPA_PLATFORM=eglfs mythfrontend
--logpath=/tmp -O libCECEnabled=0


You may need to reboot the Raspberry Pi before making this change.


Mike

---- On Fri, 14 Aug 2020 14:33:09 +0100 Mike Bibbings <mike.bibbings@gmail.com> wrote ----



On 14/08/2020 13:33, Tim Draper wrote:

just updated one of my rpi4's and i'm now getting segfault.
running raspbian, upgrade done via 'apt upgrade'.

Mythtv is setup from PBennets rpi repo, latest version is
v31.0-54-g445cf1fe6b.



$ QT_QPA_PLATFORM=eglfs mythfrontend --logpath=/tmp -O
libCECEnabled=0

Failed to move cursor on screen HDMI1: -13

2020-08-14 13:24:22.439101 I  Setup Interrupt handler

2020-08-14 13:24:22.439169 I  Setup Terminated handler

2020-08-14 13:24:22.439187 I  Setup Segmentation fault
handler

2020-08-14 13:24:22.439204 I  Setup Aborted handler

2020-08-14 13:24:22.439220 I  Setup Bus error handler

2020-08-14 13:24:22.439238 I  Setup Floating point
exception handler

2020-08-14 13:24:22.439255 I  Setup Illegal instruction
handler

2020-08-14 13:24:22.439274 I  Setup Real-time signal 0
handler

2020-08-14 13:24:22.439296 I  Setup User defined signal
1 handler

2020-08-14 13:24:22.439313 I  Setup User defined signal
2 handler

2020-08-14 13:24:22.439329 I  Setup Hangup handler

2020-08-14 13:24:22.439600 C  mythfrontend version:
fixes/31 [v31.0-54-g445cf1fe6b] http://www.mythtv.org

2020-08-14 13:24:22.439618 C  Qt version: compile:
5.11.3, runtime: 5.11.3

2020-08-14 13:24:22.439741 I  Raspbian GNU/Linux 10
(buster) (arm)

2020-08-14 13:24:22.439748 N  Enabled verbose msgs: 
general

2020-08-14 13:24:22.440028 N  Setting Log Level to
LOG_INFO

2020-08-14 13:24:22.450737 I  Added logging to the
console

2020-08-14 13:24:22.450803 N  Using runtime prefix =
/usr

2020-08-14 13:24:22.450814 N  Using configuration
directory = /home/pi/.mythtv

2020-08-14 13:24:22.450926 I  Assumed character
encoding: en_GB.UTF-8

2020-08-14 13:24:22.451046 N  Setting 'libCECEnabled'
being forced to '0'

2020-08-14 13:24:22.451851 I  Added logging to
/tmp/mythfrontend.20200814122422.1111.log

2020-08-14 13:24:22.452537 I  Loading en_gb translation
for module mythfrontend

2020-08-14 13:24:22.453202 I  Empty LocalHostName. This
is typical.

2020-08-14 13:24:22.453226 I  Using a profile name of:
'myth-fe5' (Usually the same as this host's name.)

2020-08-14 13:24:22.453447 I  Start up testing
connections. DB sql, BE , attempt 0, status dbAwake,
Delay: 2000

2020-08-14 13:24:23.993694 N  Setting QT default locale
to en_GB

2020-08-14 13:24:23.993778 I  Current locale en_GB

2020-08-14 13:24:23.994040 N  Reading locale defaults
from /usr/share/mythtv//locales/en_gb.xml

2020-08-14 13:24:24.018182 I  Display: Found screen
'HDMI1'

2020-08-14 13:24:24.018268 I  Display: Using screen
'HDMI1' (Make: Goldstar Company Ltd Model: LG TV)

2020-08-14 13:24:24.018343 I  Display: Qt screen pixel
ratio: 1.00

2020-08-14 13:24:24.018414 I  Display: Geometry:
1920x1080+0+0 Size(Qt): 1600mmx900mm

2020-08-14 13:24:24.020199 I  DisplayRPI: Connected to
display 'HDMI1'

2020-08-14 13:24:24.049514 I  EDID: Version:1.3
Size:256 Exensions:1

2020-08-14 13:24:24.049559 I  EDID: Gamma:2.2 sRGB:1

2020-08-14 13:24:24.049592 I  EDID: Display
chromaticity:-

2020-08-14 13:24:24.049620 I  EDID: Red:        0.6396,
0.3301

2020-08-14 13:24:24.049646 I  EDID: Green:      0.2998,
0.5996

2020-08-14 13:24:24.049671 I  EDID: Blue:       0.1504,
0.0596

2020-08-14 13:24:24.049695 I  EDID: White:      0.3125,
0.3291

2020-08-14 13:24:24.049724 I  EDID: Physical address:
3.0.0.0

2020-08-14 13:24:24.051811 N  Display: Desktop video
mode: 1920x1080 60.000Hz

2020-08-14 13:24:24.051838 N  Display: Display is using
sRGB colourspace

2020-08-14 13:24:24.174871 E  PowerDBus: No UPower
interface. Unable to monitor battery state

2020-08-14 13:24:24.193806 I  PowerDBus: Failed to
delay sleep,shutdown: Permission denied

2020-08-14 13:24:24.233796 I  Power: On AC power

2020-08-14 13:24:24.233826 I  Power: Supported actions:
None

2020-08-14 13:24:24.233875 N  Setting 'libCECEnabled'
being forced to '0'

2020-08-14 13:24:24.249316 E  Failed listening on TCP
0.0.0.0:6547 - Error 8: The bound address is already in
use

2020-08-14 13:24:24.249378 E  MediaRenderer: HttpServer
Create Error

2020-08-14 13:24:24.262920 I  Loading en_gb translation
for module mythfrontend

2020-08-14 13:24:24.271808 E  LIRC: Failed to connect
to Unix socket '/var/run/lirc/lircd'

                        eno: No such file or directory
(2)

2020-08-14 13:24:24.271917 I  No joystick configuration
found, not enabling joystick control

2020-08-14 13:24:24.271930 I  UDPListener: Enabling

2020-08-14 13:24:24.273093 E  Failed binding to UDP
0.0.0.0:6948 - Error 8: The bound address is already in
use

failed to export dumb buffer: Permission denied

Failed to create scanout resource

2020-08-14 13:24:24.274859 E  Failed binding to UDP
[::]:6948 - Error 8: The bound address is already in use

2020-08-14 13:24:24.329887 I  Using Frameless Window

2020-08-14 13:24:24.329897 I  Using Full Screen Window

2020-08-14 13:24:24.338308 I  Display: Have main widget

2020-08-14 13:24:24.338333 I  Display: Have main window

2020-08-14 13:24:24.339034 I  Display: Found screen
'HDMI1'

2020-08-14 13:24:24.340508 I  UI Screen Resolution:
1920 x 1080

failed to export dumb buffer: Permission denied

Failed to create scanout resource

QOpenGLFramebufferObject: Framebuffer incomplete
attachment.

QOpenGLFramebufferObject: Framebuffer incomplete,
missing attachment.

2020-08-14 13:24:24.433095 E  Failed to create
framebuffer object

2020-08-14 13:24:24.433224 I  OpenGL: OpenGL
vendor        : Broadcom

2020-08-14 13:24:24.433236 I  OpenGL: OpenGL
renderer      : V3D 4.2

2020-08-14 13:24:24.433247 I  OpenGL: OpenGL
version       : OpenGL ES 3.1 Mesa 19.3.2

2020-08-14 13:24:24.433264 I  OpenGL: Qt
platform          : eglfs

2020-08-14 13:24:24.433352 I  OpenGL: EGL
display          : Yes

2020-08-14 13:24:24.433361 I  OpenGL: EGL
images           : Yes

2020-08-14 13:24:24.433370 I  OpenGL: Qt OpenGL
format     : OpenGLES 3.1

2020-08-14 13:24:24.433379 I  OpenGL: Qt OpenGL
surface    : RGBA: 8880 Depth: 0 Stencil: 0

2020-08-14 13:24:24.433389 I  OpenGL: Max texture
size     : 4096

2020-08-14 13:24:24.433397 I  OpenGL: Max texture
units    : 48

2020-08-14 13:24:24.433406 I  OpenGL:
Shaders              : Yes

2020-08-14 13:24:24.433416 I  OpenGL: NPOT
textures        : Yes

2020-08-14 13:24:24.433424 I  OpenGL:
Multitexturing       : Yes

2020-08-14 13:24:24.433433 I  OpenGL: Rectangular
textures : No

2020-08-14 13:24:24.433442 I  OpenGL: Buffer
mapping       : Yes

2020-08-14 13:24:24.433451 I  OpenGL: Framebuffer
objects  : Yes

2020-08-14 13:24:24.433459 I  OpenGL: 16bit
framebuffers   : No

2020-08-14 13:24:24.433468 I  OpenGL: Unpack
Subimage      : Yes

2020-08-14 13:24:24.433477 I  OpenGL:
GL_RED/GL_R8         : Yes

failed to export dumb buffer: Permission denied

Failed to create scanout resource

QEGLPlatformContext: eglSwapBuffers failed: 3003

Could not lock GBM surface front buffer!

failed to export dumb buffer: Permission denied

Failed to create scanout resource

QEGLPlatformContext: eglSwapBuffers failed: 3003

Could not lock GBM surface front buffer!

failed to export dumb buffer: Permission denied

Failed to create scanout resource

QEGLPlatformContext: eglSwapBuffers failed: 3003

Could not lock GBM surface front buffer!

2020-08-14 13:24:24.482396 I  OpenGL: Initialised
MythRenderOpenGL

2020-08-14 13:24:24.482415 I  OpenGL: Using full range
output

2020-08-14 13:24:24.512929 I  MythUIHelper: Pruning
cache directory: /home/pi/.mythtv/cache/remotecache

2020-08-14 13:24:24.513104 I  MythUIHelper: Kept 0
files, deleted 0 files, stat error on 0 files

2020-08-14 13:24:24.513129 I  MythUIHelper: Pruning
cache directory: /home/pi/.mythtv/cache/thumbnails

2020-08-14 13:24:24.513200 I  MythUIHelper: Kept 0
files, deleted 0 files, stat error on 0 files

2020-08-14 13:24:24.610063 I 
MythCoreContext::ConnectCommandSocket(): Connecting to
backend server: 192.168.1.149:6543 (try 1 of 1)

2020-08-14 13:24:24.612047 I 
MythCoreContext::CheckProtoVersion(): Using protocol
version 91 BuzzOff

libpng error: Read Error

libpng error: Read Error

2020-08-14 13:24:24.846886 I  CECAdapter: libCEC
support is disabled.

2020-08-14 13:24:24.855576 I  Current MythTV Schema
Version (DBSchemaVer): 1361

2020-08-14 13:24:24.861491 I  V4L2_M2M:
Supported/available V4L2 decoders:

2020-08-14 13:24:24.861515 I  V4L2_M2M: H264

2020-08-14 13:24:24.863465 I  MMAL: Supported/available
MMAL decoders:

2020-08-14 13:24:24.863483 I  MMAL: H264

Handling Segmentation fault

Segmentation fault



libpng-tools and libpng16-16 are installed (seemed to be
the closest packages to the libpng error). worked before the
upgrade but broken after.







I suspect the update installed a series 5.4 kernel (uname -a )

You need to add QT_QPA_EGLFS_ALWAYS_SET_MODE="1" to the command
line i.e.

QT_QPA_EGLFS_ALWAYS_SET_MODE="1" QT_QPA_PLATFORM=eglfs
mythfrontend --logpath=/tmp -O libCECEnabled=0



You may need to reboot the Raspberry Pi before making this
change.



Mike








not sure about the seg fault - i reinstalled that rpi4.

i have a 2nd rpi4 that wasnt segfaulting but also not displaying the FE GUI even though it was running and i could even play recorded to (blink navigation). adding that to the start made the GUI appear. i'll have to double check this one as it worked fine last time i used it. maybe auto-updates are enabled and it got the 5.4 kernel in the last 2-3 weeks.



after rebuilding the segfault rpi4, it was same as the 2nd rpi - gui hidden and i needed to add that option to the cmdline startup.

Since the reinstall of the rpi4, it's being a bit erratic with boot up. not sure if it's a eeprom/firmware update causing it or i have a failing SD card but seems very intermittent boot where it wont even initiate the display.



thanks for that - the additional entry was needed! i'll update the wiki with it at some point.