https://bugs.kde.org/show_bug.cgi?id=419404
Bug ID: 419404
Summary: Kamoso crashes on startup when webcam is plugged in
Product: kamoso
Version: unspecified
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: general
Assignee: aleix...@kde.org
Reporter: ejsta...@joyrex.net
Target Milestone: ---
Application: kamoso (19.12.3)
Qt Version: 5.14.1
Frameworks Version: 5.68.0
Operating System: Linux 5.5.13-arch1-1 x86_64
Windowing system: X11
Distribution: Arch Linux
-- Information about the crash:
- What I was doing when the application crashed:
Opening Kamoso with webcam plugged in. When it's unplugged, this doesn't
happen. Kamoso opens fine. When the webcam gets plugged in Kamoso will then
crash. I plugged the webcam into a different USB bus and received the same
result.
- Custom settings of the application:
$ sudo lsusb -v -s 001:007
Bus 001 Device 007: ID 046d:08aa Logitech, Inc. Labtec Notebooks
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x046d Logitech, Inc.
idProduct 0x08aa Labtec Notebooks
bcdDevice 1.00
iManufacturer 0
iProduct 2 Camera
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x0150
bNumInterfaces 3
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0000 1x 0 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 1
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0080 1x 128 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 2
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x00c0 1x 192 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 3
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0100 1x 256 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 4
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0180 1x 384 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 5
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 6
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0300 1x 768 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 7
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x03ff 1x 1023 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 0
iInterface 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 0x0027
bInCollection 1
baInterfaceNr(0) 2
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Microphone
bAssocTerminal 0
bNrChannels 1
wChannelConfig 0x0000
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 2
bSourceID 1
bControlSize 2
bmaControls(0) 0x0043
Mute Control
Volume Control
Automatic Gain Control
iFeature 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 3
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 2
iTerminal 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 3
bDelay 1 frames
wFormatTag 0x0001 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 8000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioStreaming Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 0 Undefined
wLockDelay 0x0000
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 0
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 3
bDelay 1 frames
wFormatTag 0x0001 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 1
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 16000
Endpoint Descriptor:
bLength 9
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0020 1x 32 bytes
bInterval 1
bRefresh 0
bSynchAddress 0
AudioStreaming Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 0 Undefined
wLockDelay 0x0000
can't get debug descriptor: Resource temporarily unavailable
Device Status: 0x0000
(Bus Powered)
The crash can be reproduced every time.
-- Backtrace:
Application: Kamoso (kamoso), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc842f9ed00 (LWP 35854))]
Thread 9 (Thread 0x7fc82cd92700 (LWP 35862)):
#0 0x00007fc8473f14fc in read () at /usr/lib/libc.so.6
#1 0x00007fc84933c8c0 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007fc84938c001 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3 0x00007fc84938d748 in () at /usr/lib/libglib-2.0.so.0
#4 0x00007fc84938e843 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#5 0x00007fc8380b6486 in () at /usr/lib/gstreamer-1.0/libgstvideo4linux2.so
#6 0x00007fc849364e71 in () at /usr/lib/libglib-2.0.so.0
#7 0x00007fc8466b346f in start_thread () at /usr/lib/libpthread.so.0
#8 0x00007fc8474003d3 in clone () at /usr/lib/libc.so.6
Thread 8 (Thread 0x7fc82d593700 (LWP 35861)):
#0 0x00007fc8473f159f in write () at /usr/lib/libc.so.6
#1 0x00007fc84738224d in _IO_file_write@@GLIBC_2.2.5 () at /usr/lib/libc.so.6
#2 0x00007fc8473815a6 in new_do_write () at /usr/lib/libc.so.6
#3 0x00007fc84738297e in __GI__IO_file_xsputn () at /usr/lib/libc.so.6
#4 0x00007fc847376adb in fputs () at /usr/lib/libc.so.6
#5 0x00007fc8380d5a96 in () at /usr/lib/spa-0.2/support/libspa-support.so
#6 0x00007fc82e15c190 in pw_log_log () at /usr/lib/libpipewire-0.3.so.0
#7 0x00007fc82e14ac98 in () at /usr/lib/libpipewire-0.3.so.0
#8 0x00007fc8466b346f in start_thread () at /usr/lib/libpthread.so.0
#9 0x00007fc8474003d3 in clone () at /usr/lib/libc.so.6
Thread 7 (Thread 0x7fc82ddfc700 (LWP 35860)):
#0 0x00007fc847386a36 in __libc_disable_asynccancel () at /usr/lib/libc.so.6
#1 0x00007fc847400722 in epoll_wait () at /usr/lib/libc.so.6
#2 0x00007fc8380d3161 in () at /usr/lib/spa-0.2/support/libspa-support.so
#3 0x00007fc8380d3c22 in () at /usr/lib/spa-0.2/support/libspa-support.so
#4 0x00007fc82e1771d4 in () at /usr/lib/libpipewire-0.3.so.0
#5 0x00007fc8466b346f in start_thread () at /usr/lib/libpthread.so.0
#6 0x00007fc8474003d3 in clone () at /usr/lib/libc.so.6
Thread 6 (Thread 0x7fc82f3fe700 (LWP 35859)):
#0 0x00007fc8473f5abf in poll () at /usr/lib/libc.so.6
#1 0x00007fc84938d7a0 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007fc84938d871 in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3 0x00007fc8479ca0ec in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4 0x00007fc84797057c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5 0x00007fc847794e62 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6 0x00007fc84916bf89 in () at /usr/lib/libQt5Qml.so.5
#7 0x00007fc847795fd6 in () at /usr/lib/libQt5Core.so.5
#8 0x00007fc8466b346f in start_thread () at /usr/lib/libpthread.so.0
#9 0x00007fc8474003d3 in clone () at /usr/lib/libc.so.6
Thread 5 (Thread 0x7fc82ffff700 (LWP 35858)):
#0 0x00007fc8473f5abf in poll () at /usr/lib/libc.so.6
#1 0x00007fc84938d7a0 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007fc84938d871 in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3 0x00007fc8479ca0ec in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4 0x00007fc84797057c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5 0x00007fc847794e62 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6 0x00007fc84916bf89 in () at /usr/lib/libQt5Qml.so.5
#7 0x00007fc847795fd6 in () at /usr/lib/libQt5Core.so.5
#8 0x00007fc8466b346f in start_thread () at /usr/lib/libpthread.so.0
#9 0x00007fc8474003d3 in clone () at /usr/lib/libc.so.6
Thread 4 (Thread 0x7fc83bfff700 (LWP 35857)):
#0 0x00007fc84933c479 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#1 0x00007fc84938d08c in g_main_context_prepare () at
/usr/lib/libglib-2.0.so.0
#2 0x00007fc84938d6c6 in () at /usr/lib/libglib-2.0.so.0
#3 0x00007fc84938d871 in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#4 0x00007fc8479ca0ec in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#5 0x00007fc84797057c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#6 0x00007fc847794e62 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7 0x00007fc84916bf89 in () at /usr/lib/libQt5Qml.so.5
#8 0x00007fc847795fd6 in () at /usr/lib/libQt5Core.so.5
#9 0x00007fc8466b346f in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007fc8474003d3 in clone () at /usr/lib/libc.so.6
Thread 3 (Thread 0x7fc841346700 (LWP 35856)):
#0 0x00007fc8473f14fc in read () at /usr/lib/libc.so.6
#1 0x00007fc84933c8c0 in () at /usr/lib/libglib-2.0.so.0
#2 0x00007fc84938c001 in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#3 0x00007fc84938d748 in () at /usr/lib/libglib-2.0.so.0
#4 0x00007fc84938d871 in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#5 0x00007fc8479ca0ec in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#6 0x00007fc84797057c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#7 0x00007fc847794e62 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#8 0x00007fc8467a5b28 in () at /usr/lib/libQt5DBus.so.5
#9 0x00007fc847795fd6 in () at /usr/lib/libQt5Core.so.5
#10 0x00007fc8466b346f in start_thread () at /usr/lib/libpthread.so.0
#11 0x00007fc8474003d3 in clone () at /usr/lib/libc.so.6
Thread 2 (Thread 0x7fc841eff700 (LWP 35855)):
#0 0x00007fc8473f5abf in poll () at /usr/lib/libc.so.6
#1 0x00007fc84564b63b in () at /usr/lib/libxcb.so.1
#2 0x00007fc84564d37b in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3 0x00007fc8428a8ba1 in () at /usr/lib/libQt5XcbQpa.so.5
#4 0x00007fc847795fd6 in () at /usr/lib/libQt5Core.so.5
#5 0x00007fc8466b346f in start_thread () at /usr/lib/libpthread.so.0
#6 0x00007fc8474003d3 in clone () at /usr/lib/libc.so.6
Thread 1 (Thread 0x7fc842f9ed00 (LWP 35854)):
[KCrash Handler]
#6 0x00007fc84933c475 in g_mutex_lock () at /usr/lib/libglib-2.0.so.0
#7 0x00007fc8494c0c24 in gst_pad_get_current_caps () at
/usr/lib/libgstreamer-1.0.so.0
#8 0x00007fc81f0315af in () at /usr/lib/gstreamer-1.0/libgstcamerabin.so
#9 0x00007fc81f031bda in () at /usr/lib/gstreamer-1.0/libgstcamerabin.so
#10 0x00007fc81efc6a24 in gst_base_camera_src_set_mode () at
/usr/lib/libgstbasecamerabinsrc-1.0.so.0
#11 0x00007fc8492f8707 in g_object_set_valist () at
/usr/lib/libgobject-2.0.so.0
#12 0x00007fc8492f89f5 in g_object_set () at /usr/lib/libgobject-2.0.so.0
#13 0x00007fc81f02d299 in () at /usr/lib/gstreamer-1.0/libgstcamerabin.so
#14 0x00007fc8494d48b5 in gst_element_change_state () at
/usr/lib/libgstreamer-1.0.so.0
#15 0x00007fc8494d4f44 in () at /usr/lib/libgstreamer-1.0.so.0
#16 0x0000560c8c0b630a in ()
#17 0x0000560c8c0ad328 in ()
#18 0x00007fc847328023 in __libc_start_main () at /usr/lib/libc.so.6
#19 0x0000560c8c0ad5de in ()
[Inferior 1 (process 35854) detached]
Reported using DrKonqi
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