Closed hegjon closed 7 years ago
gdb backtrace:
warning: core file may not match specified executable file.
[New LWP 11067]
[New LWP 11089]
[New LWP 11078]
[New LWP 11070]
[New LWP 11081]
[New LWP 11088]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/bin/python2 -s /usr/bin/electrum'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 __GI___pthread_mutex_lock (mutex=mutex@entry=0xb165c20) at ../nptl/pthread_mutex_lock.c:67
67 ../nptl/pthread_mutex_lock.c: No such file or directory.
[Current thread is 1 (Thread 0x7f63353ff700 (LWP 11067))]
Thread 1 (Thread 0x7f63353ff700 (LWP 11067)):
#0 __GI___pthread_mutex_lock (mutex=mutex@entry=0xb165c20) at ../nptl/pthread_mutex_lock.c:67
__PRETTY_FUNCTION__ = "__pthread_mutex_lock"
type = <optimized out>
id = <optimized out>
#1 0x00007f6317874ff2 in _zbar_mutex_lock (lock=0xb165c20) at zbar/mutex.h:128
No locals.
#2 proc_enter (proc=0xb165a50) at zbar/processor.c:30
No locals.
#3 zbar_processor_request_size (proc=0xb165a50, width=640, height=480) at zbar/processor.c:484
No locals.
#4 0x00007f6328645c58 in ffi_call_unix64 () at ../src/x86/unix64.S:76
No locals.
#5 0x00007f63286456ba in ffi_call (cif=cif@entry=0x7ffe2ef36d10, fn=fn@entry=0x7f6317874fd0 <zbar_processor_request_size>, rvalue=<optimized out>, rvalue@entry=0x7ffe2ef36c20, avalue=avalue@entry=0x7ffe2ef36bf0) at ../src/x86/ffi64.c:525
classes = {X86_64_INTEGERSI_CLASS, 32611, 787705104, 32766}
stack = <optimized out>
argp = 0x7ffe2ef36ac0 "\n"
arg_types = <optimized out>
gprcount = 3
ssecount = <optimized out>
ngpr = 1
nsse = 0
i = <optimized out>
avn = <optimized out>
ret_in_memory = <optimized out>
reg_args = <optimized out>
#6 0x00007f632885881f in _call_function_pointer (argcount=3, resmem=0x7ffe2ef36c20, restype=<optimized out>, atypes=<optimized out>, avalues=0x7ffe2ef36bf0, pProc=0x7f6317874fd0 <zbar_processor_request_size>, flags=4353) at /usr/src/debug/Python-2.7.13/Modules/_ctypes/callproc.c:841
error_object = 0x0
cc = 2
_save = 0x55fe0a5790a0
space = 0x7ffe2ef36e00
cif = {abi = FFI_UNIX64, nargs = 3, arg_types = 0x7ffe2ef36bc0, rtype = 0x7f6328a86160, bytes = 0, flags = 10}
#7 _ctypes_callproc (pProc=pProc@entry=0x7f6317874fd0 <zbar_processor_request_size>, argtuple=argtuple@entry=(186014288, 640, 480), flags=4353, argtypes=argtypes@entry=0x0, restype=<_ctypes.PyCSimpleType at remote 0x55fe0a7c8980>, checker=0x0) at /usr/src/debug/Python-2.7.13/Modules/_ctypes/callproc.c:1184
i = <optimized out>
n = <optimized out>
argcount = <optimized out>
argtype_count = <optimized out>
resbuf = <optimized out>
args = 0x7ffe2ef36c40
pa = <optimized out>
atypes = <optimized out>
rtype = <optimized out>
avalues = <optimized out>
retval = 0x0
#8 0x00007f6328852382 in PyCFuncPtr_call (self=<optimized out>, inargs=<optimized out>, kwds=<optimized out>) at /usr/src/debug/Python-2.7.13/Modules/_ctypes/_ctypes.c:3979
restype = <optimized out>
converters = <optimized out>
checker = <optimized out>
argtypes = <optimized out>
dict = <optimized out>
result = <optimized out>
errcheck = <optimized out>
pProc = <optimized out>
inoutmask = 0
outmask = 0
numretvals = 0
#9 0x00007f6334eeadf3 in PyObject_Call () from /lib64/libpython2.7.so.1.0
No symbol table info available.
#10 0x00007f6334f3f388 in do_call (nk=0, na=3, pp_stack=0x7ffe2ef36f10, func=<optimized out>) at /usr/src/debug/Python-2.7.13/Python/ceval.c:4646
callargs = <optimized out>
kwdict = <optimized out>
result = 0x0
#11 call_function (oparg=<optimized out>, pp_stack=0x7ffe2ef36f10) at /usr/src/debug/Python-2.7.13/Python/ceval.c:4451
func = <optimized out>
w = <optimized out>
na = 3
nk = 0
n = <optimized out>
pfunc = 0x7f6329cb6208Python Exception <class 'gdb.error'> There is no member named ob_ival.:
x = <optimized out>
#12 PyEval_EvalFrameEx (f=f@entry=, throwflag=throwflag@entry=0) at /usr/src/debug/Python-2.7.13/Python/ceval.c:3063
sp = 0x7f6329cb6210
opcode_targets = {0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f418ba <PyEval_EvalFrameEx+31658>, 0x7f6334f418bf <PyEval_EvalFrameEx+31663>, 0x7f6334f418c4 <PyEval_EvalFrameEx+31668>, 0x7f6334f418ce <PyEval_EvalFrameEx+31678>, 0x7f6334f418c9 <PyEval_EvalFrameEx+31673>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f4185f <PyEval_EvalFrameEx+31567>, 0x7f6334f418f2 <PyEval_EvalFrameEx+31714>, 0x7f6334f418f7 <PyEval_EvalFrameEx+31719>, 0x7f6334f418fc <PyEval_EvalFrameEx+31724>, 0x7f6334f41901 <PyEval_EvalFrameEx+31729>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f41906 <PyEval_EvalFrameEx+31734>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f4190b <PyEval_EvalFrameEx+31739>, 0x7f6334f41910 <PyEval_EvalFrameEx+31744>, 0x7f6334f41915 <PyEval_EvalFrameEx+31749>, 0x7f6334f41924 <PyEval_EvalFrameEx+31764>, 0x7f6334f41929 <PyEval_EvalFrameEx+31769>, 0x7f6334f4192e <PyEval_EvalFrameEx+31774>, 0x7f6334f41933 <PyEval_EvalFrameEx+31779>, 0x7f6334f4191f <PyEval_EvalFrameEx+31759>, 0x7f6334f4191a <PyEval_EvalFrameEx+31754>, 0x7f6334f4199d <PyEval_EvalFrameEx+31885>, 0x7f6334f41998 <PyEval_EvalFrameEx+31880>, 0x7f6334f419ca <PyEval_EvalFrameEx+31930>, 0x7f6334f419da <PyEval_EvalFrameEx+31946>, 0x7f6334f419e7 <PyEval_EvalFrameEx+31959>, 0x7f6334f419f4 <PyEval_EvalFrameEx+31972>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f41a04 <PyEval_EvalFrameEx+31988>, 0x7f6334f41a17 <PyEval_EvalFrameEx+32007>, 0x7f6334f3f7e9 <PyEval_EvalFrameEx+23257>, 0x7f6334f41a27 <PyEval_EvalFrameEx+32023>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3f1d6 <PyEval_EvalFrameEx+21702>, 0x7f6334f41a37 <PyEval_EvalFrameEx+32039>, 0x7f6334f3f224 <PyEval_EvalFrameEx+21780>, 0x7f6334f41a47 <PyEval_EvalFrameEx+32055>, 0x7f6334f3fd18 <PyEval_EvalFrameEx+24584>, 0x7f6334f419a7 <PyEval_EvalFrameEx+31895>, 0x7f6334f419ac <PyEval_EvalFrameEx+31900>, 0x7f6334f4198e <PyEval_EvalFrameEx+31870>, 0x7f6334f41993 <PyEval_EvalFrameEx+31875>, 0x7f6334f419a2 <PyEval_EvalFrameEx+31890>, 0x7f6334f41a57 <PyEval_EvalFrameEx+32071>, 0x7f6334f41a5c <PyEval_EvalFrameEx+32076>, 0x7f6334f41938 <PyEval_EvalFrameEx+31784>, 0x7f6334f4193d <PyEval_EvalFrameEx+31789>, 0x7f6334f41942 <PyEval_EvalFrameEx+31794>, 0x7f6334f41947 <PyEval_EvalFrameEx+31799>, 0x7f6334f4194c <PyEval_EvalFrameEx+31804>, 0x7f6334f41989 <PyEval_EvalFrameEx+31865>, 0x7f6334f3fe32 <PyEval_EvalFrameEx+24866>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f41a61 <PyEval_EvalFrameEx+32081>, 0x7f6334f3a87e <PyEval_EvalFrameEx+2926>, 0x7f6334f3e5f6 <PyEval_EvalFrameEx+18662>, 0x7f6334f3a86c <PyEval_EvalFrameEx+2908>, 0x7f6334f3e5e4 <PyEval_EvalFrameEx+18644>, 0x7f6334f419b1 <PyEval_EvalFrameEx+31905>, 0x7f6334f419b6 <PyEval_EvalFrameEx+31910>, 0x7f6334f419bb <PyEval_EvalFrameEx+31915>, 0x7f6334f419c0 <PyEval_EvalFrameEx+31920>, 0x7f6334f419c5 <PyEval_EvalFrameEx+31925>, 0x7f6334f3e8d7 <PyEval_EvalFrameEx+19399>, 0x7f6334f3fee7 <PyEval_EvalFrameEx+25047>, 0x7f6334f40c3e <PyEval_EvalFrameEx+28462>, 0x7f6334f3d55a <PyEval_EvalFrameEx+14410>, 0x7f6334f3fd8e <PyEval_EvalFrameEx+24702>, 0x7f6334f415b2 <PyEval_EvalFrameEx+30882>, 0x7f6334f3d8f7 <PyEval_EvalFrameEx+15335>, 0x7f6334f415b7 <PyEval_EvalFrameEx+30887>, 0x7f6334f41651 <PyEval_EvalFrameEx+31041>, 0x7f6334f41659 <PyEval_EvalFrameEx+31049>, 0x7f6334f41663 <PyEval_EvalFrameEx+31059>, 0x7f6334f41680 <PyEval_EvalFrameEx+31088>, 0x7f6334f4169a <PyEval_EvalFrameEx+31114>, 0x7f6334f3fe37 <PyEval_EvalFrameEx+24871>, 0x7f6334f41951 <PyEval_EvalFrameEx+31809>, 0x7f6334f416b6 <PyEval_EvalFrameEx+31142>, 0x7f6334f416cf <PyEval_EvalFrameEx+31167>, 0x7f6334f416eb <PyEval_EvalFrameEx+31195>, 0x7f6334f41707 <PyEval_EvalFrameEx+31223>, 0x7f6334f418d6 <PyEval_EvalFrameEx+31686>, 0x7f6334f41881 <PyEval_EvalFrameEx+31601>, 0x7f6334f41720 <PyEval_EvalFrameEx+31248>, 0x7f6334f417c6 <PyEval_EvalFrameEx+31414>, 0x7f6334f3fcc7 <PyEval_EvalFrameEx+24503>, 0x7f6334f3fce1 <PyEval_EvalFrameEx+24529>, 0x7f6334f3fcfb <PyEval_EvalFrameEx+24555>, 0x7f6334f3fd36 <PyEval_EvalFrameEx+24614>, 0x7f6334f3fd50 <PyEval_EvalFrameEx+24640>, 0x7f6334f3fd6f <PyEval_EvalFrameEx+24671>, 0x7f6334f3fd93 <PyEval_EvalFrameEx+24707>, 0x7f6334f3fdb0 <PyEval_EvalFrameEx+24736>, 0x7f6334f3fe00 <PyEval_EvalFrameEx+24816>, 0x7f6334f3fe19 <PyEval_EvalFrameEx+24841>, 0x7f6334f3be62 <PyEval_EvalFrameEx+8530>, 0x7f6334f3fdc8 <PyEval_EvalFrameEx+24760>, 0x7f6334f3fde4 <PyEval_EvalFrameEx+24788>, 0x7f6334f4173e <PyEval_EvalFrameEx+31278>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3fe54 <PyEval_EvalFrameEx+24900>, 0x7f6334f3fe70 <PyEval_EvalFrameEx+24928>, 0x7f6334f3fe8f <PyEval_EvalFrameEx+24959>, 0x7f6334f3feae <PyEval_EvalFrameEx+24990>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f41864 <PyEval_EvalFrameEx+31572>, 0x7f6334f4189e <PyEval_EvalFrameEx+31630>, 0x7f6334f41758 <PyEval_EvalFrameEx+31304>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f40c20 <PyEval_EvalFrameEx+28432>, 0x7f6334f3c6f2 <PyEval_EvalFrameEx+10722>, 0x7f6334f3ff91 <PyEval_EvalFrameEx+25217>, 0x7f6334f3ffcb <PyEval_EvalFrameEx+25275>, 0x7f6334f3ffae <PyEval_EvalFrameEx+25246>, 0x7f6334f41772 <PyEval_EvalFrameEx+31330>, 0x7f6334f4178f <PyEval_EvalFrameEx+31359>, 0x7f6334f417a9 <PyEval_EvalFrameEx+31385>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3feef <PyEval_EvalFrameEx+25055>, 0x7f6334f3ff27 <PyEval_EvalFrameEx+25111>, 0x7f6334f3ff6d <PyEval_EvalFrameEx+25181>, 0x7f6334f3fecd <PyEval_EvalFrameEx+25021>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3ca82 <PyEval_EvalFrameEx+11634>, 0x7f6334f4196d <PyEval_EvalFrameEx+31837>, 0x7f6334f3fd1d <PyEval_EvalFrameEx+24589>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297> <repeats 108 times>}
stack_pointer = <optimized out>
next_instr = <optimized out>
opcode = 131
oparg = <optimized out>
why = WHY_NOT
err = 0
x = <optimized out>
v = <optimized out>
w = <optimized out>
u = <optimized out>
t = <optimized out>
stream = 0x0
fastlocals = 0x7f6329cb61c8
freevars = <optimized out>
retval = <optimized out>
tstate = <optimized out>
co = <optimized out>
instr_ub = <optimized out>
instr_lb = <optimized out>
instr_prev = <optimized out>
first_instr = <optimized out>
names = <optimized out>
consts = <optimized out>
#13 0x00007f6334f4363c in PyEval_EvalCodeEx (co=<optimized out>, globals=<optimized out>, locals=<optimized out>, args=<optimized out>, argcount=1, kws=0x7f63251debb0, kwcount=0, defs=0x7f63251db9b0, defcount=4, closure=0x0) at /usr/src/debug/Python-2.7.13/Python/ceval.c:3661
Python Exception <class 'gdb.error'> There is no member named ob_ival.:
f =
retval = 0x0
fastlocals = 0x7f6329cb61c8
freevars = 0x7f6329cb6208
tstate = 0x55fe0a5790a0
x = <optimized out>
u = <optimized out>
#14 0x00007f6334f3fb6c in fast_function (nk=0, na=<optimized out>, n=<optimized out>, pp_stack=0x7ffe2ef37110, func=<optimized out>) at /usr/src/debug/Python-2.7.13/Python/ceval.c:4524
co = <optimized out>
nd = <optimized out>
globals = <optimized out>
argdefs = <optimized out>
d = <optimized out>
#15 call_function (oparg=<optimized out>, pp_stack=0x7ffe2ef37110) at /usr/src/debug/Python-2.7.13/Python/ceval.c:4449
func = <optimized out>
w = <optimized out>
na = <optimized out>
nk = 0
n = <optimized out>
pfunc = 0x7f63251deba0
x = <optimized out>
#16 PyEval_EvalFrameEx (f=f@entry=Frame 0x7f63251dea00, for file /usr/lib/python2.7/site-packages/electrum_gui/qt/qrtextedit.py, line 52, in qr_input (self=<ScanQRTextEdit(buttons=[<QToolButton at remote 0x7f62f4048478>, <QToolButton at remote 0x7f62f40482b0>], text=<built-in method toPlainText of ScanQRTextEdit object at remote 0x7f62f40485a8>, setText=<built-in method setPlainText of ScanQRTextEdit object at remote 0x7f62f40485a8>) at remote 0x7f62f40485a8>, qrscanner=<module at remote 0x7f62f4029440>, get_config=<function at remote 0x7f63263138c0>), throwflag=throwflag@entry=0) at /usr/src/debug/Python-2.7.13/Python/ceval.c:3063
sp = 0x7f63251debb0
opcode_targets = {0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f418ba <PyEval_EvalFrameEx+31658>, 0x7f6334f418bf <PyEval_EvalFrameEx+31663>, 0x7f6334f418c4 <PyEval_EvalFrameEx+31668>, 0x7f6334f418ce <PyEval_EvalFrameEx+31678>, 0x7f6334f418c9 <PyEval_EvalFrameEx+31673>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f4185f <PyEval_EvalFrameEx+31567>, 0x7f6334f418f2 <PyEval_EvalFrameEx+31714>, 0x7f6334f418f7 <PyEval_EvalFrameEx+31719>, 0x7f6334f418fc <PyEval_EvalFrameEx+31724>, 0x7f6334f41901 <PyEval_EvalFrameEx+31729>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f41906 <PyEval_EvalFrameEx+31734>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f4190b <PyEval_EvalFrameEx+31739>, 0x7f6334f41910 <PyEval_EvalFrameEx+31744>, 0x7f6334f41915 <PyEval_EvalFrameEx+31749>, 0x7f6334f41924 <PyEval_EvalFrameEx+31764>, 0x7f6334f41929 <PyEval_EvalFrameEx+31769>, 0x7f6334f4192e <PyEval_EvalFrameEx+31774>, 0x7f6334f41933 <PyEval_EvalFrameEx+31779>, 0x7f6334f4191f <PyEval_EvalFrameEx+31759>, 0x7f6334f4191a <PyEval_EvalFrameEx+31754>, 0x7f6334f4199d <PyEval_EvalFrameEx+31885>, 0x7f6334f41998 <PyEval_EvalFrameEx+31880>, 0x7f6334f419ca <PyEval_EvalFrameEx+31930>, 0x7f6334f419da <PyEval_EvalFrameEx+31946>, 0x7f6334f419e7 <PyEval_EvalFrameEx+31959>, 0x7f6334f419f4 <PyEval_EvalFrameEx+31972>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f41a04 <PyEval_EvalFrameEx+31988>, 0x7f6334f41a17 <PyEval_EvalFrameEx+32007>, 0x7f6334f3f7e9 <PyEval_EvalFrameEx+23257>, 0x7f6334f41a27 <PyEval_EvalFrameEx+32023>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 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<PyEval_EvalFrameEx+3297>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3feef <PyEval_EvalFrameEx+25055>, 0x7f6334f3ff27 <PyEval_EvalFrameEx+25111>, 0x7f6334f3ff6d <PyEval_EvalFrameEx+25181>, 0x7f6334f3fecd <PyEval_EvalFrameEx+25021>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297>, 0x7f6334f3ca82 <PyEval_EvalFrameEx+11634>, 0x7f6334f4196d <PyEval_EvalFrameEx+31837>, 0x7f6334f3fd1d <PyEval_EvalFrameEx+24589>, 0x7f6334f3a9f1 <PyEval_EvalFrameEx+3297> <repeats 108 times>}
stack_pointer = <optimized out>
next_instr = <optimized out>
opcode = 131
oparg = <optimized out>
why = WHY_NOT
err = 0
x = <optimized out>
v = <optimized out>
w = <optimized out>
u = <optimized out>
t = <optimized out>
stream = 0x0
fastlocals = 0x7f63251deb78
freevars = <optimized out>
retval = <optimized out>
tstate = <optimized out>
co = <optimized out>
instr_ub = <optimized out>
instr_lb = <optimized out>
instr_prev = <optimized out>
first_instr = <optimized out>
names = <optimized out>
consts = <optimized out>
#17 0x00007f6334f4363c in PyEval_EvalCodeEx (co=<optimized out>, globals=<optimized out>, locals=<optimized out>, args=<optimized out>, argcount=1, kws=0x0, kwcount=0, defs=0x0, defcount=0, closure=0x0) at /usr/src/debug/Python-2.7.13/Python/ceval.c:3661
f = Frame 0x7f63251dea00, for file /usr/lib/python2.7/site-packages/electrum_gui/qt/qrtextedit.py, line 52, in qr_input (self=<ScanQRTextEdit(buttons=[<QToolButton at remote 0x7f62f4048478>, <QToolButton at remote 0x7f62f40482b0>], text=<built-in method toPlainText of ScanQRTextEdit object at remote 0x7f62f40485a8>, setText=<built-in method setPlainText of ScanQRTextEdit object at remote 0x7f62f40485a8>) at remote 0x7f62f40485a8>, qrscanner=<module at remote 0x7f62f4029440>, get_config=<function at remote 0x7f63263138c0>)
retval = 0x0
fastlocals = 0x7f63251deb78
freevars = 0x7f63251deba0
tstate = 0x55fe0a5790a0
x = <optimized out>
u = <optimized out>
#18 0x00007f6334ecab6e in function_call.lto_priv () from /lib64/libpython2.7.so.1.0
No symbol table info available.
#19 0x00007f6334eeadf3 in PyObject_Call () from /lib64/libpython2.7.so.1.0
No symbol table info available.
#20 0x00007f6334ee9b2e in instancemethod_call.lto_priv () from /lib64/libpython2.7.so.1.0
No symbol table info available.
#21 0x00007f6334eeadf3 in PyObject_Call () from /lib64/libpython2.7.so.1.0
No symbol table info available.
#22 0x00007f6334f39727 in PyEval_CallObjectWithKeywords (func=func@entry=<instancemethod at remote 0x7f63262a24b0>, arg=arg@entry=(), kw=kw@entry=0x0) at /usr/src/debug/Python-2.7.13/Python/ceval.c:4298
Python Exception <class 'gdb.error'> There is no member named ob_ival.:
result = <optimized out>
#23 0x00007f62ee516ca0 in sip_api_invoke_slot_ex (slot=<optimized out>, sigargs=, no_receiver_check=<optimized out>) at /usr/src/debug/sip-4.18.1/siplib/qtlib.c:222
nsa = <optimized out>
xtype = <type at remote 0x7f63351cea40>
xvalue = 'qr_input() takes exactly 1 argument (2 given)'
xtb = 0x0
resobj = <optimized out>
sa = ()
oxtype = <type at remote 0x7f63351cea40>
oxvalue = 'qr_input() takes exactly 1 argument (2 given)'
sfunc = <instancemethod at remote 0x7f63262a24b0>
sref = <optimized out>
#24 0x00007f62ee22bf02 in PyQtProxy::invokeSlot(qpycore_slot const&, void**, int) () from /usr/lib64/python2.7/site-packages/PyQt4/QtCore.so
No symbol table info available.
#25 0x00007f62ee22c26d in PyQtProxy::unislot(void**) () from /usr/lib64/python2.7/site-packages/PyQt4/QtCore.so
No symbol table info available.
#26 0x00007f62ee22ce4d in PyQtProxy::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/python2.7/site-packages/PyQt4/QtCore.so
No symbol table info available.
#27 0x00007f63144a21be in QMetaObject::activate (sender=sender@entry=0x55fe0b25a100, m=m@entry=0x7f62f65c8900 <QAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7ffe2ef377f0) at kernel/qobject.cpp:3597
method = 4
receiverInSameThread = true
previousSender = 0x0
callFunction = 0x0
receiver = 0x55fe0b163af0
currentSender = {sender = 0x55fe0b25a100, signal = 29, ref = 1}
method_relative = <optimized out>
c = 0x55fe0b16da40
last = 0x55fe0b16da40
signalOffset = <optimized out>
methodOffset = <optimized out>
signal_index = <optimized out>
signal_absolute_index = <optimized out>
empty_argv = {0x0}
currentThreadId = 140064071874304
locker = {val = 94549595946416}
connectionLists = <optimized out>
list = 0x55fe0b16dd50
#28 0x00007f62f6154622 in QAbstractButton::clicked (this=this@entry=0x55fe0b25a100, _t1=<optimized out>) at .moc/release-shared/moc_qabstractbutton.cpp:219
_a = {0x0, 0x7ffe2ef377ec}
#29 0x00007f62f5e8b0f3 in QAbstractButtonPrivate::emitClicked (this=this@entry=0x55fe0b163430) at widgets/qabstractbutton.cpp:548
guard = {o = 0x55fe0b25a100}
#30 0x00007f62f5e8c504 in QAbstractButtonPrivate::click (this=this@entry=0x55fe0b163430) at widgets/qabstractbutton.cpp:541
changeState = <optimized out>
guard = {o = 0x55fe0b25a100}
#31 0x00007f62f5e8c614 in QAbstractButton::mouseReleaseEvent (this=this@entry=0x55fe0b25a100, e=e@entry=0x7ffe2ef37dd0) at widgets/qabstractbutton.cpp:1123
d = 0x55fe0b163430
#32 0x00007f62f5f51b5a in QToolButton::mouseReleaseEvent (this=this@entry=0x55fe0b25a100, e=e@entry=0x7ffe2ef37dd0) at widgets/qtoolbutton.cpp:723
d = 0x55fe0b163430
#33 0x00007f62f681906b in sipQToolButton::mouseReleaseEvent (this=0x55fe0b25a100, a0=0x7ffe2ef37dd0) at sipQtGuiQToolButton.cpp:1023
sipGILState = PyGILState_UNLOCKED
sipMeth = <optimized out>
#34 0x00007f62f5b0d710 in QWidget::event (this=0x55fe0b25a100, event=0x7ffe2ef37dd0) at kernel/qwidget.cpp:8775
d = <optimized out>
#35 0x00007f62f5e8d651 in QAbstractButton::event (this=this@entry=0x55fe0b25a100, e=e@entry=0x7ffe2ef37dd0) at widgets/qabstractbutton.cpp:1082
No locals.
#36 0x00007f62f5f51bf7 in QToolButton::event (this=this@entry=0x55fe0b25a100, event=event@entry=0x7ffe2ef37dd0) at widgets/qtoolbutton.cpp:1168
No locals.
#37 0x00007f62f681a1bb in sipQToolButton::event (this=0x55fe0b25a100, a0=0x7ffe2ef37dd0) at sipQtGuiQToolButton.cpp:1166
sipGILState = (unknown: 22014)
sipMeth = <optimized out>
#38 0x00007f62f5ab6ecc in QApplicationPrivate::notify_helper (this=0x55fe0ac7b960, receiver=0x55fe0b25a100, e=0x7ffe2ef37dd0) at kernel/qapplication.cpp:4565
consumed = <optimized out>
#39 0x00007f62f5abf547 in QApplication::notify (this=this@entry=0x55fe0aebaf60, receiver=receiver@entry=0x55fe0b25a100, e=e@entry=0x7ffe2ef37dd0) at kernel/qapplication.cpp:4108
d = <optimized out>
res = false
#40 0x00007f62f6b4fe66 in sipQApplication::notify (this=0x55fe0aebaf60, a0=0x55fe0b25a100, a1=0x7ffe2ef37dd0) at sipQtGuiQApplication.cpp:356
sipGILState = (unknown: 32766)
sipMeth = <optimized out>
#41 0x00007f631448deed in QCoreApplication::notifyInternal (this=0x55fe0aebaf60, receiver=0x55fe0b25a100, event=0x7ffe2ef37dd0) at kernel/qcoreapplication.cpp:955
result = false
cbdata = {0x55fe0b25a100, 0x7ffe2ef37dd0, 0x7ffe2ef37c0f}
d = <optimized out>
threadData = 0x55fe0ae14260
returnValue = <optimized out>
#42 0x00007f62f5abd56b in QApplicationPrivate::sendMouseEvent (receiver=0x55fe0b25a100, event=0x7ffe2ef37dd0, alienWidget=0x55fe0b25a100, nativeWidget=0x55fe0b116380, buttonDown=<optimized out>, lastMouseReceiver=..., spontaneous=true) at ../../src/corelib/kernel/qcoreapplication.h:231
receiverGuard = {o = 0x55fe0b25a100}
nativeGuard = {o = 0x55fe0b116380}
alienGuard = {o = 0x55fe0b25a100}
activePopupWidget = {o = 0x0}
graphicsWidget = false
wasLeaveAfterRelease = <optimized out>
result = <optimized out>
#43 0x00007f62f5b37fe9 in QETWidget::translateMouseEvent (this=0x55fe0b116380, event=<optimized out>) at kernel/qapplication_x11.cpp:4546
d = <optimized out>
type = QEvent::MouseButtonRelease
pos = {xp = 9, yp = 16}
globalPos = {xp = 1192, yp = 527}
button = Qt::LeftButton
buttons = <optimized out>
modifiers = {i = 0}
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parent = 94549595811584, window = 94549590865056, place = 180810912}, xproperty = {type = 787709584, serial = 94549595743104, send_event = -296771360, display = 0x5f3552ae54652700, window = 94549595811584, atom = 94549590865056, time = 94549590865056, state = 787709652}, xselectionclear = {type = 787709584, serial = 94549595743104, send_event = -296771360, display = 0x5f3552ae54652700, window = 94549595811584, selection = 94549590865056, time = 94549590865056}, xselectionrequest = {type = 787709584, serial = 94549595743104, send_event = -296771360, display = 0x5f3552ae54652700, owner = 94549595811584, requestor = 94549590865056, selection = 94549590865056, target = 140729686130388, property = 94549593272194, time = 0}, xselection = {type = 787709584, serial = 94549595743104, send_event = -296771360, display = 0x5f3552ae54652700, requestor = 94549595811584, selection = 94549590865056, target = 94549590865056, property = 140729686130388, time = 94549593272194}, xcolormap = {type = 787709584, serial = 94549595743104, send_event = -296771360, display = 0x5f3552ae54652700, window = 94549595811584, colormap = 94549590865056, c_new = 180810912, state = 22014}, xclient = {type = 787709584, serial = 94549595743104, send_event = -296771360, display = 0x5f3552ae54652700, window = 94549595811584, message_type = 94549590865056, format = 180810912, data = {b = "\324~\363.\376\177\000\000\202\257\353\n\376U\000\000\000\000\000", s = {32468, 12019, 32766, 0, -20606, 2795, 22014, 0, 0, 0}, l = {140729686130388, 94549593272194, 0, 140063022990922, 140063005452928}}}, xmapping = {type = 787709584, serial = 94549595743104, send_event = -296771360, display = 0x5f3552ae54652700, window = 94549595811584, request = 180810912, first_keycode = 22014, count = 180810912}, xerror = {type = 787709584, display = 0x55fe0b116380, resourceid = 140062881718496, serial = 6860480516062521088, error_code = 0 '\000', request_code = 111 'o', minor_code = 18 '\022'}, xkeymap = {type = 787709584, serial = 94549595743104, send_event = -296771360, display = 0x5f3552ae54652700, window = 94549595811584, key_vector = "\240\364\306\n\376U\000\000\240\364\306\n\376U\000\000\324~\363.\376\177\000\000\202\257\353\n\376U\000"}, xgeneric = {type = 787709584, serial = 94549595743104, send_event = -296771360, display = 0x5f3552ae54652700, extension = 185757440, evtype = 22014}, xcookie = {type = 787709584, serial = 94549595743104, send_event = -296771360, display = 0x5f3552ae54652700, extension = 185757440, evtype = 22014, cookie = 180810912, data = 0x55fe0ac6f4a0}, pad = {140729686130320, 94549595743104, 140062881718496, 6860480516062521088, 94549595811584, 94549590865056, 94549590865056, 140729686130388, 94549593272194, 0, 140063022990922, 140063005452928, 11, 94549593272160, 140729686130992, 0, 140063522389952, 94549596276352, 0, 140063022580955, 140729686130992, 6860480516062521088, 94549595743104, 140063522386136}}
#44 0x00007f62f5b3699c in QApplication::x11ProcessEvent (this=0x55fe0aebaf60, event=event@entry=0x7ffe2ef38130) at kernel/qapplication_x11.cpp:3663
d = 0x55fe0ac7b960
loopLevelCounter = {threadData = 0x55fe0ae14260}
widget = 0x55fe0b116380
keywidget = <optimized out>
grabbed = <optimized out>
#45 0x00007f62f5b5f409 in x11EventSourceDispatch (s=0x55fe0ae05800, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
event = {type = 5, xany = {type = 5, serial = 7479, send_event = 0, display = 0x55fe0ac74bb0, window = 81788970}, xkey = {type = 5, serial = 7479, send_event = 0, display = 0x55fe0ac74bb0, window = 81788970, root = 524, subwindow = 0, time = 1006153828, x = 532, y = 169, x_root = 1192, y_root = 527, state = 256, keycode = 1, same_screen = 1}, xbutton = {type = 5, serial = 7479, send_event = 0, display = 0x55fe0ac74bb0, window = 81788970, root = 524, subwindow = 0, time = 1006153828, x = 532, y = 169, x_root = 1192, y_root = 527, state = 256, button = 1, same_screen = 1}, xmotion = {type = 5, serial = 7479, send_event = 0, display = 0x55fe0ac74bb0, window = 81788970, root = 524, subwindow = 0, time = 1006153828, x = 532, y = 169, x_root = 1192, y_root = 527, state = 256, is_hint = 1 '\001', same_screen = 1}, xcrossing = {type = 5, serial = 7479, send_event = 0, display = 0x55fe0ac74bb0, window = 81788970, root = 524, subwindow = 0, time = 1006153828, x = 532, y = 169, x_root = 1192, y_root = 527, mode = 256, detail = 1, same_screen = 1, focus = 1, state = 0}, xfocus = {type = 5, serial = 7479, send_event = 0, display = 0x55fe0ac74bb0, window = 81788970, mode = 524, detail = 0}, xexpose = {type = 5, serial = 7479, send_event = 0, display = 0x55fe0ac74bb0, window = 81788970, x = 524, y = 0, width = 0, height = 0, count = 1006153828}, xgraphicsexpose = {type = 5, serial = 7479, send_event = 0, display = 0x55fe0ac74bb0, drawable = 81788970, x = 524, y = 0, width = 0, height = 0, count = 1006153828, major_code = 0, minor_code = 532}, xnoexpose = {type = 5, serial = 7479, send_event = 0, display = 0x55fe0ac74bb0, drawable = 81788970, major_code = 524, minor_code = 0}, xvisibility = {type = 5, serial = 7479, send_event = 0
Timeout exceeded: 240 seconds, killing gdb.
Looks like gdb hung while generating backtrace.
This may be a bug in gdb. Consider submitting a bug report to gdb developers.
Please attach coredump from this crash to the bug report if you do.
is zar is compiled with video support on fedora? does the qr scanner button work?
Thanks, it segfaults on my machine when I press Read QR code in the send tab. I will investigate more this weekend
any news on that?
It works when I run it under valgrind, so maybe a bug in zbar?
Here is a log after I open and close the qr scanner button:
$ valgrind electrum
==10572== Memcheck, a memory error detector
==10572== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==10572== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info
==10572== Command: /usr/bin/electrum
==10572==
"sni-qt/10572" WARN 08:30:38.550 void StatusNotifierItemFactory::connectToSnw() Invalid interface to SNW_SERVICE
==10572== Syscall param writev(vector[...]) points to uninitialised byte(s)
==10572== at 0x5CC166D: ??? (in /usr/lib64/libc-2.25.so)
==10572== by 0x21D13F86: ??? (in /usr/lib64/libxcb.so.1.1.0)
==10572== by 0x21D14384: ??? (in /usr/lib64/libxcb.so.1.1.0)
==10572== by 0x21D1440C: xcb_writev (in /usr/lib64/libxcb.so.1.1.0)
==10572== by 0x1F919205: _XSend (in /usr/lib64/libX11.so.6.3.0)
==10572== by 0x1F91957F: _XFlush (in /usr/lib64/libX11.so.6.3.0)
==10572== by 0x1F8FA879: XFlush (in /usr/lib64/libX11.so.6.3.0)
==10572== by 0x1E6E03DF: QWidget::setCursor(QCursor const&) (in /usr/lib64/libQtGui.so.4.8.7)
==10572== by 0x1EAF360C: QSizeGrip::moveEvent(QMoveEvent*) (in /usr/lib64/libQtGui.so.4.8.7)
==10572== by 0x1E6E7987: QWidget::event(QEvent*) (in /usr/lib64/libQtGui.so.4.8.7)
==10572== by 0x1E691CDB: QApplicationPrivate::notify_helper(QObject*, QEvent*) (in /usr/lib64/libQtGui.so.4.8.7)
==10572== by 0x1E698E46: QApplication::notify(QObject*, QEvent*) (in /usr/lib64/libQtGui.so.4.8.7)
==10572== Address 0x1573d4d0 is 192 bytes inside a block of size 16,384 alloc'd
==10572== at 0x4C30A1E: calloc (vg_replace_malloc.c:711)
==10572== by 0x1F9092D5: XOpenDisplay (in /usr/lib64/libX11.so.6.3.0)
==10572== by 0x1E70D11B: ??? (in /usr/lib64/libQtGui.so.4.8.7)
==10572== by 0x1E696245: QApplicationPrivate::construct(_XDisplay*, unsigned long, unsigned long) (in /usr/lib64/libQtGui.so.4.8.7)
==10572== by 0x1E6964EE: QApplication::QApplication(int&, char**, int) (in /usr/lib64/libQtGui.so.4.8.7)
==10572== by 0x1DFE9E7D: ??? (in /usr/lib64/python2.7/site-packages/PyQt4/QtGui.so)
==10572== by 0x1DFEA065: ??? (in /usr/lib64/python2.7/site-packages/PyQt4/QtGui.so)
==10572== by 0x225C0582: ??? (in /usr/lib64/python2.7/site-packages/sip.so)
==10572== by 0x4F20E33: ??? (in /usr/lib64/libpython2.7.so.1.0)
==10572== by 0x4ED4EA2: PyObject_Call (in /usr/lib64/libpython2.7.so.1.0)
==10572== by 0x4FB7883: PyEval_EvalFrameEx (in /usr/lib64/libpython2.7.so.1.0)
==10572== by 0x4FBC827: PyEval_EvalCodeEx (in /usr/lib64/libpython2.7.so.1.0)
==10572==
==10572== Conditional jump or move depends on uninitialised value(s)
==10572== at 0x366A7267: _zbar_processor_set_visible (x.c:263)
==10572== by 0x3668928E: zbar_processor_set_visible (processor.c:541)
==10572== by 0x12954BDD: ffi_call_unix64 (in /usr/lib64/libffi.so.6.0.2)
==10572== by 0x1295454E: ffi_call (in /usr/lib64/libffi.so.6.0.2)
==10572== by 0x12741324: _ctypes_callproc (in /usr/lib64/python2.7/lib-dynload/_ctypes.so)
==10572== by 0x1273B05D: ??? (in /usr/lib64/python2.7/lib-dynload/_ctypes.so)
==10572== by 0x4ED4EA2: PyObject_Call (in /usr/lib64/libpython2.7.so.1.0)
==10572== by 0x4FB7883: PyEval_EvalFrameEx (in /usr/lib64/libpython2.7.so.1.0)
==10572== by 0x4FBC827: PyEval_EvalCodeEx (in /usr/lib64/libpython2.7.so.1.0)
==10572== by 0x4FB9862: PyEval_EvalFrameEx (in /usr/lib64/libpython2.7.so.1.0)
==10572== by 0x4FBA1C8: PyEval_EvalFrameEx (in /usr/lib64/libpython2.7.so.1.0)
==10572== by 0x4FBC827: PyEval_EvalCodeEx (in /usr/lib64/libpython2.7.so.1.0)
==10572==
==10572== Conditional jump or move depends on uninitialised value(s)
==10572== at 0x36688EB9: _zbar_processor_handle_input (processor.c:180)
==10572== by 0x366A70C8: x_handle_event (x.c:68)
==10572== by 0x366A70C8: x_handle_events (x.c:109)
==10572== by 0x366A70C8: x_connection_handler (x.c:120)
==10572== by 0x366A3A1E: proc_poll_inputs (posix.c:237)
==10572== by 0x366A3A1E: _zbar_processor_input_wait (posix.c:268)
==10572== by 0x3668A753: proc_wait_unthreaded (lock.c:184)
==10572== by 0x3668A753: _zbar_processor_wait (lock.c:204)
==10572== by 0x36689FE2: zbar_process_one (processor.c:653)
==10572== by 0x12954BDD: ffi_call_unix64 (in /usr/lib64/libffi.so.6.0.2)
==10572== by 0x1295454E: ffi_call (in /usr/lib64/libffi.so.6.0.2)
==10572== by 0x12741324: _ctypes_callproc (in /usr/lib64/python2.7/lib-dynload/_ctypes.so)
==10572== by 0x1273B05D: ??? (in /usr/lib64/python2.7/lib-dynload/_ctypes.so)
==10572== by 0x4ED4EA2: PyObject_Call (in /usr/lib64/libpython2.7.so.1.0)
==10572== by 0x4FB7883: PyEval_EvalFrameEx (in /usr/lib64/libpython2.7.so.1.0)
==10572== by 0x4FBC827: PyEval_EvalCodeEx (in /usr/lib64/libpython2.7.so.1.0)
These two last warnings pops up when I click on the qr scanner button and when I close the zbar webcam window.
zbar version:
$ rpm -qi zbar
Name : zbar
Version : 0.10
Release : 29.fc26
Architecture: x86_64
Install Date: Tue 18 Jul 2017 02:51:51 PM CEST
Group : User Interface/X Hardware Support
Size : 303759
License : LGPLv2+
Signature : RSA/SHA256, Tue 04 Apr 2017 02:49:08 AM CEST, Key ID 812a6b4b64dab85d
Source RPM : zbar-0.10-29.fc26.src.rpm
Build Date : Tue 04 Apr 2017 02:18:01 AM CEST
Build Host : buildvm-32.phx2.fedoraproject.org
Relocations : (not relocatable)
Packager : Fedora Project
Vendor : Fedora Project
URL : http://zbar.sourceforge.net/
Summary : Bar code reader
Description :
A layered barcode scanning and decoding library. Supports EAN, UPC, Code 128,
Code 39 and Interleaved 2 of 5.
Includes applications for decoding captured barcode images and using a video
device (eg, webcam) as a barcode scanner.
Here is the warnings with the --track-origins=yes flag
==22522== Conditional jump or move depends on uninitialised value(s)
==22522== at 0x3688A267: _zbar_processor_set_visible (x.c:263)
==22522== by 0x3686C28E: zbar_processor_set_visible (processor.c:541)
==22522== by 0x12954BDD: ffi_call_unix64 (unix64.S:76)
==22522== by 0x1295454E: ffi_call (ffi64.c:525)
==22522== by 0x12741324: _ctypes_callproc (in /usr/lib64/python2.7/lib-dynload/_ctypes.so)
==22522== by 0x1273B05D: ??? (in /usr/lib64/python2.7/lib-dynload/_ctypes.so)
==22522== by 0x4ED4EA2: PyObject_Call (in /usr/lib64/libpython2.7.so.1.0)
==22522== by 0x4FB7883: PyEval_EvalFrameEx (in /usr/lib64/libpython2.7.so.1.0)
==22522== by 0x4FBC827: PyEval_EvalCodeEx (in /usr/lib64/libpython2.7.so.1.0)
==22522== by 0x4FB9862: PyEval_EvalFrameEx (in /usr/lib64/libpython2.7.so.1.0)
==22522== by 0x4FBA1C8: PyEval_EvalFrameEx (in /usr/lib64/libpython2.7.so.1.0)
==22522== by 0x4FBC827: PyEval_EvalCodeEx (in /usr/lib64/libpython2.7.so.1.0)
==22522== Uninitialised value was created by a stack allocation
==22522== at 0x12954387: ffi_call (ffi64.c:444)
==22522==
==22522== Conditional jump or move depends on uninitialised value(s)
==22522== at 0x3686BEB9: _zbar_processor_handle_input (processor.c:180)
==22522== by 0x3688A0C8: x_handle_event (x.c:68)
==22522== by 0x3688A0C8: x_handle_events (x.c:109)
==22522== by 0x3688A0C8: x_connection_handler (x.c:120)
==22522== by 0x36886A1E: proc_poll_inputs (posix.c:237)
==22522== by 0x36886A1E: _zbar_processor_input_wait (posix.c:268)
==22522== by 0x3686D753: proc_wait_unthreaded (lock.c:184)
==22522== by 0x3686D753: _zbar_processor_wait (lock.c:204)
==22522== by 0x3686CFE2: zbar_process_one (processor.c:653)
==22522== by 0x12954BDD: ffi_call_unix64 (unix64.S:76)
==22522== by 0x1295454E: ffi_call (ffi64.c:525)
==22522== by 0x12741324: _ctypes_callproc (in /usr/lib64/python2.7/lib-dynload/_ctypes.so)
==22522== by 0x1273B05D: ??? (in /usr/lib64/python2.7/lib-dynload/_ctypes.so)
==22522== by 0x4ED4EA2: PyObject_Call (in /usr/lib64/libpython2.7.so.1.0)
==22522== by 0x4FB7883: PyEval_EvalFrameEx (in /usr/lib64/libpython2.7.so.1.0)
==22522== by 0x4FBC827: PyEval_EvalCodeEx (in /usr/lib64/libpython2.7.so.1.0)
==22522== Uninitialised value was created by a stack allocation
==22522== at 0x12954387: ffi_call (ffi64.c:444)
please note that you can execute the python file lib/qrscanner.py as a standalone file, without the electrum GUI. does it crash similarly?
Thanks, yes, it behaves just like when I click on the button. Crashes without valgrind, works with valgrind.
jonny@jonny-thinkpad ~ {1.8}{6.9.4} $ python2 /usr/lib/python2.7/site-packages/electrum/qrscanner.py
Segmentation fault (core dumped)
jonny@jonny-thinkpad ~ {1.8}{6.9.4} $ valgrind python2 /usr/lib/python2.7/site-packages/electrum/qrscanner.py
==24094== Memcheck, a memory error detector
==24094== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==24094== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info
==24094== Command: python2 /usr/lib/python2.7/site-packages/electrum/qrscanner.py
==24094==
==24094== Conditional jump or move depends on uninitialised value(s)
==24094== at 0xEB8C267: _zbar_processor_set_visible (x.c:263)
==24094== by 0xEB6E28E: zbar_processor_set_visible (processor.c:541)
==24094== by 0xE754BDD: ffi_call_unix64 (unix64.S:76)
==24094== by 0xE75454E: ffi_call (ffi64.c:525)
==24094== by 0xE541324: _ctypes_callproc (in /usr/lib64/python2.7/lib-dynload/_ctypes.so)
==24094== by 0xE53B05D: ??? (in /usr/lib64/python2.7/lib-dynload/_ctypes.so)
==24094== by 0x4ED4EA2: PyObject_Call (in /usr/lib64/libpython2.7.so.1.0)
==24094== by 0x4FB7883: PyEval_EvalFrameEx (in /usr/lib64/libpython2.7.so.1.0)
==24094== by 0x4FBC827: PyEval_EvalCodeEx (in /usr/lib64/libpython2.7.so.1.0)
==24094== by 0x4FB9862: PyEval_EvalFrameEx (in /usr/lib64/libpython2.7.so.1.0)
==24094== by 0x4FBC827: PyEval_EvalCodeEx (in /usr/lib64/libpython2.7.so.1.0)
==24094== by 0x4FBCA38: PyEval_EvalCode (in /usr/lib64/libpython2.7.so.1.0)
==24094==
==24094== Conditional jump or move depends on uninitialised value(s)
==24094== at 0xEB6DEB9: _zbar_processor_handle_input (processor.c:180)
==24094== by 0xEB8C0C8: x_handle_event (x.c:68)
==24094== by 0xEB8C0C8: x_handle_events (x.c:109)
==24094== by 0xEB8C0C8: x_connection_handler (x.c:120)
==24094== by 0xEB88A7F: proc_poll_inputs (posix.c:249)
==24094== by 0xEB88A7F: _zbar_processor_input_wait (posix.c:268)
==24094== by 0xEB6F753: proc_wait_unthreaded (lock.c:184)
==24094== by 0xEB6F753: _zbar_processor_wait (lock.c:204)
==24094== by 0xEB6EFE2: zbar_process_one (processor.c:653)
==24094== by 0xE754BDD: ffi_call_unix64 (unix64.S:76)
==24094== by 0xE75454E: ffi_call (ffi64.c:525)
==24094== by 0xE541324: _ctypes_callproc (in /usr/lib64/python2.7/lib-dynload/_ctypes.so)
==24094== by 0xE53B05D: ??? (in /usr/lib64/python2.7/lib-dynload/_ctypes.so)
==24094== by 0x4ED4EA2: PyObject_Call (in /usr/lib64/libpython2.7.so.1.0)
==24094== by 0x4FB7883: PyEval_EvalFrameEx (in /usr/lib64/libpython2.7.so.1.0)
==24094== by 0x4FBC827: PyEval_EvalCodeEx (in /usr/lib64/libpython2.7.so.1.0)
==24094==
None
==24094==
==24094== HEAP SUMMARY:
==24094== in use at exit: 1,103,970 bytes in 6,725 blocks
==24094== total heap usage: 105,051 allocs, 98,326 frees, 28,643,926 bytes allocated
==24094==
==24094== LEAK SUMMARY:
==24094== definitely lost: 40 bytes in 2 blocks
==24094== indirectly lost: 176 bytes in 4 blocks
==24094== possibly lost: 298,864 bytes in 1,212 blocks
==24094== still reachable: 804,890 bytes in 5,507 blocks
==24094== suppressed: 0 bytes in 0 blocks
==24094== Rerun with --leak-check=full to see details of leaked memory
==24094==
==24094== For counts of detected and suppressed errors, rerun with: -v
==24094== Use --track-origins=yes to see where uninitialised values come from
==24094== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)
can you compile and try the following c file?
/* gcc zbar.c -lzbar */
#include <stdlib.h>
#include <stdio.h>
#include <zbar.h>
int timeout=5000;
int disp=1;
int threaded=0;
zbar_processor_t* proc;
const zbar_symbol_set_t* symbols;
const zbar_symbol_t* symbol;
const char* data;
int main()
{
proc = zbar_processor_create(threaded);
zbar_processor_request_size(proc, 640, 480);
zbar_processor_init(proc, "", disp);
zbar_processor_set_visible(proc, 1);
/*zbar_window_t* win = zbar_window_create();
zbar_window_attach(win, NULL, 0);*/
printf("process one...\n");
zbar_process_one(proc, timeout);
symbols = zbar_processor_get_results(proc);
int n = zbar_symbol_set_get_size(symbols);
if(n == 0) return 0;
printf("symbols: %d\n", n);
symbol = zbar_symbol_set_first_symbol(symbols);
data = zbar_symbol_get_data(symbol);
printf("data: %s\n", data);
zbar_processor_destroy(proc);
/*zbar_window_destroy(win);*/
return 0;
}
compile it with gcc zbar.c -lzbar
That works, no segfaults (closes by it self after 5 seconds)
thanks! so the problem is with the python implementation. try to run the python file without the line libzbar.zbar_processor_set_visible(proc) it will not open a window, but it should still be able to scan qr codes (you can do the same test with the c file)
Both processor.py and read_one.py at repo https://github.com/herbyme/zbar/tree/master/python/examples works
I know, but that example uses the zbar bindings, and we don' want to use them anymore because they are not supported with python3.
Can you also try libzbar.zbar_processor_set_visible(proc, True)
(the second parameter is missing in electrum)
Same error, will try chaning the c file too.
jonny@jonny-thinkpad ~/projects/electrum (master) {1.8}{6.9.4} $ git diff
diff --git a/lib/qrscanner.py b/lib/qrscanner.py
index 80d4adb9..56b21beb 100644
--- a/lib/qrscanner.py
+++ b/lib/qrscanner.py
@@ -47,7 +47,6 @@ def scan_barcode(device='', timeout=-1, display=True, threaded=False):
proc = libzbar.zbar_processor_create(threaded)
libzbar.zbar_processor_request_size(proc, 640, 480)
libzbar.zbar_processor_init(proc, device, display)
- libzbar.zbar_processor_set_visible(proc)
if libzbar.zbar_process_one(proc, timeout):
symbols = libzbar.zbar_processor_get_results(proc)
else:
jonny@jonny-thinkpad ~/projects/electrum (master) {1.8}{6.9.4} $ python ./lib/qrscanner.py
Segmentation fault (core dumped)
And:
jonny@jonny-thinkpad ~/projects/electrum (master) {1.8}{6.9.4} $ git diff
diff --git a/lib/qrscanner.py b/lib/qrscanner.py
index 80d4adb9..d91e23c3 100644
--- a/lib/qrscanner.py
+++ b/lib/qrscanner.py
@@ -47,7 +47,7 @@ def scan_barcode(device='', timeout=-1, display=True, threaded=False):
proc = libzbar.zbar_processor_create(threaded)
libzbar.zbar_processor_request_size(proc, 640, 480)
libzbar.zbar_processor_init(proc, device, display)
- libzbar.zbar_processor_set_visible(proc)
+ libzbar.zbar_processor_set_visible(proc, True)
if libzbar.zbar_process_one(proc, timeout):
symbols = libzbar.zbar_processor_get_results(proc)
else:
jonny@jonny-thinkpad ~/projects/electrum (master) {1.8}{6.9.4} $ python ./lib/qrscanner.py
Segmentation fault (core dumped)
The c file works with the window function enabled
ok, maybe you can try to identify which line in the python file causes the segfault? I first thought it was set_visible, but maybe it is earlier
when I run the c file, the timeout does not work; (the window does not close itself after 5 seconds) this suggests there is a difference between our zbar libraries
It looks like line libzbar.zbar_processor_request_size(proc, 640, 480)
triggers the segfault, but when I remove that line, then it will fail on the next line.
Poor mans debugger :P
jonny@jonny-thinkpad ~/projects/electrum (master) {1.8}{6.9.4} $ git diff
diff --git a/lib/qrscanner.py b/lib/qrscanner.py
index 80d4adb9..77b7ffc1 100644
--- a/lib/qrscanner.py
+++ b/lib/qrscanner.py
@@ -41,13 +41,20 @@ except OSError:
def scan_barcode(device='', timeout=-1, display=True, threaded=False):
+ print("1")
if libzbar is None:
raise RuntimeError("Cannot start QR scanner; zbar not available.")
+ print("2")
libzbar.zbar_symbol_get_data.restype = c_char_p
+ print("3")
proc = libzbar.zbar_processor_create(threaded)
+ print("4")
libzbar.zbar_processor_request_size(proc, 640, 480)
+ print("5")
libzbar.zbar_processor_init(proc, device, display)
+ print("6")
libzbar.zbar_processor_set_visible(proc)
+ print("7")
if libzbar.zbar_process_one(proc, timeout):
symbols = libzbar.zbar_processor_get_results(proc)
else:
jonny@jonny-thinkpad ~/projects/electrum (master) {1.8}{6.9.4} $ python ./lib/qrscanner.py
1
2
3
4
Segmentation fault (core dumped)
What OS are you running? I see that Fedora applies a zbar_use_libv4l.patch + some other patches not sure if there are other differences
ubuntu. I installed this version of zbar: https://github.com/graphitemaster/zbar-lite/commits/master
I suggest you install zbar-lite and try again
Ok, will test with zbar-lite, Fedora uses this http://downloads.sourceforge.net/zbar/zbar-0.10.tar.bz2
I think I had problems with the old zbar too.
Do do bundle zbar-lite into the official release?
not for linux. the linux tar.gz is pure python. does it work with zbar-lite?
I am not sure how to install zbar-lite
hold on, I'm checking. I'm not sure anymore if I'm using that version of zbar..
sorry I was wrong, I use /usr/lib/libzbar.so.0.2.0
does your zbar have the same version number?
jonny@jonny-thinkpad ~/fedora-scm/zbar (master) {1.8}{6.9.4} $ rpm -ql zbar
/usr/bin/zbarcam
/usr/bin/zbarimg
/usr/lib64/libzbar.so.0
/usr/lib64/libzbar.so.0.2.0
/usr/share/doc/zbar
/usr/share/doc/zbar/COPYING
/usr/share/doc/zbar/LICENSE
/usr/share/doc/zbar/NEWS
/usr/share/man/man1/zbarcam.1.gz
/usr/share/man/man1/zbarimg.1.gz
jonny@jonny-thinkpad ~/fedora-scm/zbar (master) {1.8}{6.9.4} $ ldd /usr/lib64/libzbar.so.0.2.0
linux-vdso.so.1 (0x00007ffc5d1f0000)
libX11.so.6 => /lib64/libX11.so.6 (0x00007f3f9a0f6000)
libXv.so.1 => /lib64/libXv.so.1 (0x00007f3f99ef1000)
libv4l2.so.0 => /lib64/libv4l2.so.0 (0x00007f3f99ce2000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f3f99ac3000)
libc.so.6 => /lib64/libc.so.6 (0x00007f3f996f2000)
libxcb.so.1 => /lib64/libxcb.so.1 (0x00007f3f994c8000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007f3f992c4000)
libXext.so.6 => /lib64/libXext.so.6 (0x00007f3f990b2000)
libv4lconvert.so.0 => /lib64/libv4lconvert.so.0 (0x00007f3f98e38000)
/lib64/ld-linux-x86-64.so.2 (0x0000560370761000)
libXau.so.6 => /lib64/libXau.so.6 (0x00007f3f98c34000)
librt.so.1 => /lib64/librt.so.1 (0x00007f3f98a2c000)
libm.so.6 => /lib64/libm.so.6 (0x00007f3f98714000)
libjpeg.so.62 => /lib64/libjpeg.so.62 (0x00007f3f984aa000)
Is this issue related to #2527?
yes I believe it is the same issue. can you try the python3_new branch and see if it has the same issue?
Same as before, print warnings when running under valgrind and crashes when run directly:
jonny@jonny-thinkpad ~/projects/electrum (python3_new) {1.8}{6.9.4} $ git log -n1
commit a69ec64c9aafa220135e3eac12b4d8168d700689 (HEAD -> python3_new, origin/python3_new)
Author: ThomasV <thomasv@electrum.org>
Date: Sat Aug 12 21:26:57 2017 +0200
python3 updates
jonny@jonny-thinkpad ~/projects/electrum (python3_new) {1.8}{6.9.4} $ python3 lib/qrscanner.py
Segmentation fault (core dumped)
jonny@jonny-thinkpad ~/projects/electrum (python3_new) {1.8}{6.9.4} $ valgrind python3 lib/qrscanner.py
==4892== Memcheck, a memory error detector
==4892== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==4892== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info
==4892== Command: python3 lib/qrscanner.py
==4892==
==4892== Conditional jump or move depends on uninitialised value(s)
==4892== at 0xE4AE267: ??? (in /usr/lib64/libzbar.so.0.2.0)
==4892== by 0xE49028E: zbar_processor_set_visible (in /usr/lib64/libzbar.so.0.2.0)
==4892== by 0xDC74BDD: ffi_call_unix64 (unix64.S:76)
==4892== by 0xDC7454E: ffi_call (ffi64.c:525)
==4892== by 0xDA5E4FA: _ctypes_callproc (in /usr/lib64/python3.6/lib-dynload/_ctypes.cpython-36m-x86_64-linux-gnu.so)
==4892== by 0xDA5EF03: ??? (in /usr/lib64/python3.6/lib-dynload/_ctypes.cpython-36m-x86_64-linux-gnu.so)
==4892== by 0x4F55643: _PyObject_FastCallDict (in /usr/lib64/libpython3.6m.so.1.0)
==4892== by 0x4FC65EC: ??? (in /usr/lib64/libpython3.6m.so.1.0)
==4892== by 0x5003619: _PyEval_EvalFrameDefault (in /usr/lib64/libpython3.6m.so.1.0)
==4892== by 0x4F88B27: ??? (in /usr/lib64/libpython3.6m.so.1.0)
==4892== by 0x4FC657D: ??? (in /usr/lib64/libpython3.6m.so.1.0)
==4892== by 0x5003619: _PyEval_EvalFrameDefault (in /usr/lib64/libpython3.6m.so.1.0)
==4892==
==4892== Conditional jump or move depends on uninitialised value(s)
==4892== at 0xE48FEB9: ??? (in /usr/lib64/libzbar.so.0.2.0)
==4892== by 0xE4AE0C8: ??? (in /usr/lib64/libzbar.so.0.2.0)
==4892== by 0xE4AAA1E: ??? (in /usr/lib64/libzbar.so.0.2.0)
==4892== by 0xE491753: ??? (in /usr/lib64/libzbar.so.0.2.0)
==4892== by 0xE490FE2: zbar_process_one (in /usr/lib64/libzbar.so.0.2.0)
==4892== by 0xDC74BDD: ffi_call_unix64 (unix64.S:76)
==4892== by 0xDC7454E: ffi_call (ffi64.c:525)
==4892== by 0xDA5E4FA: _ctypes_callproc (in /usr/lib64/python3.6/lib-dynload/_ctypes.cpython-36m-x86_64-linux-gnu.so)
==4892== by 0xDA5EF03: ??? (in /usr/lib64/python3.6/lib-dynload/_ctypes.cpython-36m-x86_64-linux-gnu.so)
==4892== by 0x4F55643: _PyObject_FastCallDict (in /usr/lib64/libpython3.6m.so.1.0)
==4892== by 0x4FC65EC: ??? (in /usr/lib64/libpython3.6m.so.1.0)
==4892== by 0x5003619: _PyEval_EvalFrameDefault (in /usr/lib64/libpython3.6m.so.1.0)
==4892==
None
==4892==
==4892== HEAP SUMMARY:
==4892== in use at exit: 1,183,493 bytes in 9,389 blocks
==4892== total heap usage: 63,666 allocs, 54,277 frees, 79,883,459 bytes allocated
==4892==
==4892== LEAK SUMMARY:
==4892== definitely lost: 160 bytes in 2 blocks
==4892== indirectly lost: 1,552 bytes in 34 blocks
==4892== possibly lost: 375,298 bytes in 2,400 blocks
==4892== still reachable: 806,483 bytes in 6,953 blocks
==4892== suppressed: 0 bytes in 0 blocks
==4892== Rerun with --leak-check=full to see details of leaked memory
==4892==
==4892== For counts of detected and suppressed errors, rerun with: -v
==4892== Use --track-origins=yes to see where uninitialised values come from
==4892== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)
this should be fixed by f70408cef5eff3eead108a06ee11a6106253f74d can you try?
Yay, I ran python lib/qrscanner.py on latest master and it worked! Thanks
great to hear that
There have been some automated crash reports on Fedora 25, I do not have more details than the stack-trace.
Electrum version: 2.8.2
Stack traces: https://retrace.fedoraproject.org/faf/reports/1719943/
Truncated backtrace: