Public bug reported:
I printed something, afterwards I wanted to print again, but the printer did
not receive the print job, so I cancelled the job and tried to start it yet
again. Unfortunately it did not resolve the situation.
So I cancelled the print job and while at it, I changed the driver from
driverless to hpcups to allow me a more precise paper selection.
Afterwards I succeeded to print. Somewhere in the middle of all that a
crash happened (this is the relevant excerpt of the .crash file after
running apport-retrace):
SegvAnalysis:
Segfault happened at: 0x506bd7: mov %rcx,(%rdx)
PC (0x00506bd7) ok
source "%rcx" ok
destination "(%rdx)" (0x00000004) not located in a known VMA region (needed
writable region)!
Stack memory exhausted (SP below stack segment)
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: system-config-printer
Stacktrace:
#0 0x0000000000506bd7 in ()
#1 0x00007fde3b6819f5 in _Py_DECREF (filename=<synthetic pointer>,
lineno=541, op=<optimized out>) at /usr/include/python3.8/object.h:478
tls = 0x7fde30002ad0
#2 _Py_XDECREF (op=<optimized out>) at /usr/include/python3.8/object.h:541
tls = 0x7fde30002ad0
#3 destroy_TLS (value=0x7fde30002ad0) at cupsmodule.c:67
tls = 0x7fde30002ad0
#4 0x00007fde4c4795a1 in __nptl_deallocate_tsd () at pthread_create.c:301
data = <optimized out>
level2 = 0x7fde3a3aba10
idx = <optimized out>
cnt = 0
#5 0x00007fde4c47a62a in __nptl_deallocate_tsd () at pthread_create.c:256
pd = <optimized out>
unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140592436393728,
-3499183623227771153, 140724867734478, 140724867734479, 140724867734624,
140592436391872, 3516206840480593647, 3516466368495417071}, mask_was_saved =
0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0,
canceltype = 0}}}
not_first_call = 1
#6 start_thread (arg=<optimized out>) at pthread_create.c:488
pd = <optimized out>
unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140592436393728,
-3499183623227771153, 140724867734478, 140724867734479, 140724867734624,
140592436391872, 3516206840480593647, 3516466368495417071}, mask_was_saved =
0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0,
canceltype = 0}}}
not_first_call = 1
#7 0x00007fde4c5b6103 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
StacktraceAddressSignature:
/usr/share/system-config-printer/scp-dbus-service.py:11:/usr/bin/python3.8+e3bd7:/usr/lib/python3/dist-packages/cups.cpython-38-x86_64-linux-gnu.so+19f5:/usr/lib/x86_64-linux-gnu/libpthread-2.31.so+15a1:/usr/lib/x86_64-linux-gnu/libpthread-2.31.so+262a:/usr/lib/x86_64-linux-gnu/libc-2.31.so+fd103
StacktraceSource:
#0 0x0000000000506bd7 in ()
#1 0x00007fde3b6819f5 in _Py_DECREF (filename=<synthetic pointer>,
lineno=541, op=<optimized out>) at /usr/include/python3.8/object.h:478
[Error: object.h was not found in source tree]
#2 _Py_XDECREF (op=<optimized out>) at /usr/include/python3.8/object.h:541
[Error: object.h was not found in source tree]
#3 destroy_TLS (value=0x7fde30002ad0) at cupsmodule.c:67
[Error: cupsmodule.c was not found in source tree]
#4 0x00007fde4c4795a1 in __nptl_deallocate_tsd () at pthread_create.c:301
[Error: pthread_create.c was not found in source tree]
#5 0x00007fde4c47a62a in __nptl_deallocate_tsd () at pthread_create.c:256
[Error: pthread_create.c was not found in source tree]
#6 start_thread (arg=<optimized out>) at pthread_create.c:488
[Error: pthread_create.c was not found in source tree]
#7 0x00007fde4c5b6103 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
[Error: clone.S was not found in source tree]
StacktraceTop:
()
_Py_DECREF (filename=<synthetic pointer>, lineno=541, op=<optimized out>) at
/usr/include/python3.8/object.h:478
_Py_XDECREF (op=<optimized out>) at /usr/include/python3.8/object.h:541
destroy_TLS (value=0x7fde30002ad0) at cupsmodule.c:67
__nptl_deallocate_tsd () at pthread_create.c:301
Tags: focal wayland-session
ThreadStacktrace:
.
Thread 5 (Thread 0x7fde489b8700 (LWP 55391)):
warning: Unexpected size of section `.reg-xstate/55391' in core file.
#0 0x00007fde4c5a996f in __GI___poll (fds=0x233d3a0, nfds=1, timeout=-1) at
../sysdeps/unix/sysv/linux/poll.c:29
resultvar = 18446744073709551100
sc_cancel_oldtype = 0
#1 0x00007fde4b8c21ae in g_main_context_poll (priority=<optimized out>,
n_fds=1, fds=0x233d3a0, timeout=<optimized out>, context=0x233d500) at
../../../glib/gmain.c:4346
ret = <optimized out>
errsv = <optimized out>
poll_func = 0x7fde4b8d1f10 <g_poll>
max_priority = 2147483647
timeout = -1
some_ready = <optimized out>
nfds = 1
allocated_nfds = <optimized out>
fds = 0x233d3a0
#2 g_main_context_iterate (context=context@entry=0x233d500,
block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at
../../../glib/gmain.c:4042
max_priority = 2147483647
timeout = -1
some_ready = <optimized out>
nfds = 1
allocated_nfds = <optimized out>
fds = 0x233d3a0
#3 0x00007fde4b8c22e3 in g_main_context_iteration (context=0x233d500,
may_block=1) at ../../../glib/gmain.c:4108
retval = <optimized out>
#4 0x00007fde4a53699d in () at
/usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#5 0x00007fde4b8eb931 in g_thread_proxy (data=0x2341120) at
../../../glib/gthread.c:807
thread = 0x2341120
__func__ = "g_thread_proxy"
#6 0x00007fde4c47a609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
ret = <optimized out>
pd = <optimized out>
unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140592677619456,
-3499183623227771153, 140724867727342, 140724867727343, 140724867727488,
140592677617600, 3516456156352804591, 3516466368495417071}, mask_was_saved =
0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0,
canceltype = 0}}}
not_first_call = 0
#7 0x00007fde4c5b6103 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
.
Thread 4 (Thread 0x7fde491c4700 (LWP 55390)):
warning: Unexpected size of section `.reg-xstate/55390' in core file.
#0 0x00007fde4c5a996f in __GI___poll (fds=0x7fde3c0101e0, nfds=2, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
resultvar = 18446744073709551100
sc_cancel_oldtype = 0
#1 0x00007fde4b8c21ae in g_main_context_poll (priority=<optimized out>,
n_fds=2, fds=0x7fde3c0101e0, timeout=<optimized out>, context=0x7fde3c00e220)
at ../../../glib/gmain.c:4346
ret = <optimized out>
errsv = <optimized out>
poll_func = 0x7fde4b8d1f10 <g_poll>
max_priority = 2147483647
timeout = -1
some_ready = <optimized out>
nfds = 2
allocated_nfds = <optimized out>
fds = 0x7fde3c0101e0
#2 g_main_context_iterate (context=0x7fde3c00e220, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:4042
max_priority = 2147483647
timeout = -1
some_ready = <optimized out>
nfds = 2
allocated_nfds = <optimized out>
fds = 0x7fde3c0101e0
#3 0x00007fde4b8c2533 in g_main_loop_run (loop=0x7fde3c00e310) at
../../../glib/gmain.c:4241
__func__ = "g_main_loop_run"
#4 0x00007fde4b702eda in gdbus_shared_thread_func (user_data=0x7fde3c00e1f0)
at ../../../gio/gdbusprivate.c:279
data = 0x7fde3c00e1f0
#5 0x00007fde4b8eb931 in g_thread_proxy (data=0x7fde3c002000) at
../../../glib/gthread.c:807
thread = 0x7fde3c002000
__func__ = "g_thread_proxy"
#6 0x00007fde4c47a609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
ret = <optimized out>
pd = <optimized out>
unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140592686057216,
-3499183623227771153, 140592694615182, 140592694615183, 140592694615328,
140592686055360, 3516454998859118319, 3516466368495417071}, mask_was_saved =
0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0,
canceltype = 0}}}
not_first_call = 0
#7 0x00007fde4c5b6103 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
.
Thread 3 (Thread 0x7fde4c2c8740 (LWP 55387)):
warning: Unexpected size of section `.reg-xstate/55387' in core file.
#0 0x00000000004ec3ca in ()
#1 0x000000000066babb in _PyGC_CollectNoFail ()
#2 0x000000000067dd60 in PyImport_Cleanup ()
#3 0x0000000000678450 in Py_FinalizeEx ()
#4 0x00000000006aeab9 in Py_RunMain ()
#5 0x00000000006aed29 in Py_BytesMain ()
#6 0x00007fde4c4bb0b3 in __libc_start_main (main=0x4ebd20 <main>, argc=2,
argv=0x7ffd0fc0b388, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffd0fc0b378) at ../csu/libc-start.c:308
result = <optimized out>
unwind_buf = {cancel_jmp_buf = {{jmp_buf = {7007552,
-3499183623227771153, 6251200, 140724867740544, 0, 0, 3497740594051348207,
3516466471149172463}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x2,
0x7ffd0fc0b388}, data = {prev = 0x0, cleanup = 0x0, canceltype = 2}}}
not_first_call = <optimized out>
#7 0x00000000005f62ee in _start ()
.
Thread 2 (Thread 0x7fde4a1ef700 (LWP 55388)):
warning: Unexpected size of section `.reg-xstate/55388' in core file.
#0 0x00007fde4c5a996f in __GI___poll (fds=0x2329d90, nfds=1, timeout=-1) at
../sysdeps/unix/sysv/linux/poll.c:29
resultvar = 18446744073709551100
sc_cancel_oldtype = 0
#1 0x00007fde4b8c21ae in g_main_context_poll (priority=<optimized out>,
n_fds=1, fds=0x2329d90, timeout=<optimized out>, context=0x232d010) at
../../../glib/gmain.c:4346
ret = <optimized out>
errsv = <optimized out>
poll_func = 0x7fde4b8d1f10 <g_poll>
max_priority = 2147483647
timeout = -1
some_ready = <optimized out>
nfds = 1
allocated_nfds = <optimized out>
fds = 0x2329d90
#2 g_main_context_iterate (context=context@entry=0x232d010,
block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at
../../../glib/gmain.c:4042
max_priority = 2147483647
timeout = -1
some_ready = <optimized out>
nfds = 1
allocated_nfds = <optimized out>
fds = 0x2329d90
#3 0x00007fde4b8c22e3 in g_main_context_iteration (context=0x232d010,
may_block=may_block@entry=1) at ../../../glib/gmain.c:4108
retval = <optimized out>
#4 0x00007fde4b8c2331 in glib_worker_main (data=<optimized out>) at
../../../glib/gmain.c:5996
#5 0x00007fde4b8eb931 in g_thread_proxy (data=0x231a6a0) at
../../../glib/gthread.c:807
thread = 0x231a6a0
__func__ = "g_thread_proxy"
#6 0x00007fde4c47a609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
ret = <optimized out>
pd = <optimized out>
unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140592703010560,
-3499183623227771153, 140724867727838, 140724867727839, 140724867727984,
140592703008704, 3516452819700086511, 3516466368495417071}, mask_was_saved =
0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0,
canceltype = 0}}}
not_first_call = 0
#7 0x00007fde4c5b6103 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
.
Thread 1 (Thread 0x7fde3a3ab700 (LWP 55392)):
#0 0x0000000000506bd7 in ()
#1 0x00007fde3b6819f5 in _Py_DECREF (filename=<synthetic pointer>,
lineno=541, op=<optimized out>) at /usr/include/python3.8/object.h:478
tls = 0x7fde30002ad0
#2 _Py_XDECREF (op=<optimized out>) at /usr/include/python3.8/object.h:541
tls = 0x7fde30002ad0
#3 destroy_TLS (value=0x7fde30002ad0) at cupsmodule.c:67
tls = 0x7fde30002ad0
#4 0x00007fde4c4795a1 in __nptl_deallocate_tsd () at pthread_create.c:301
data = <optimized out>
level2 = 0x7fde3a3aba10
idx = <optimized out>
cnt = 0
#5 0x00007fde4c47a62a in __nptl_deallocate_tsd () at pthread_create.c:256
pd = <optimized out>
unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140592436393728,
-3499183623227771153, 140724867734478, 140724867734479, 140724867734624,
140592436391872, 3516206840480593647, 3516466368495417071}, mask_was_saved =
0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0,
canceltype = 0}}}
not_first_call = 1
#6 start_thread (arg=<optimized out>) at pthread_create.c:488
pd = <optimized out>
unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140592436393728,
-3499183623227771153, 140724867734478, 140724867734479, 140724867734624,
140592436391872, 3516206840480593647, 3516466368495417071}, mask_was_saved =
0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0,
canceltype = 0}}}
not_first_call = 1
#7 0x00007fde4c5b6103 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
** Affects: system-config-printer (Ubuntu)
Importance: Undecided
Status: New
** Tags: focal
** Tags added: focal
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https://bugs.launchpad.net/bugs/1896622
Title:
scp-dbus-service.py crashed with SIGSEGV
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