Segmentation fault on closing Sypder3

[robwhalliday]

Description

What steps will reproduce the problem?

1. Start spyder3
2. File | Quit

What is the expected output? What do you see instead?
Get segmentation fault message.

Please provide any additional information below

It appears to be issue with QT5. Also note being run on Debian - cat /proc/version -
Linux version 3.16.0-4-powerpc (debian-kernel@lists.debian.org) (gcc version 4.8.4 (Debian 4.8.4-1) ) #1 Debian 3.16.36-1+deb8u1 (2016-09-03)

Ran form within debugger to provide more information on the problem.

Thread 5 "QDBusConnection" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb4e46460 (LWP 6377)]
0x0c41c5ec in QObject::disconnect(QObject const*, char const*, QObject const*, char const*) () from /usr/lib/powerpc-linux-gnu/libQt5Core.so.5

(gdb) bt
#0 0x0c41c5ec in QObject::disconnect(QObject const*, char const*, QObject const*, char const*) () from /usr/lib/powerpc-linux-gnu/libQt5Core.so.5
#1 0x09f38af4 in ?? () from /usr/lib/powerpc-linux-gnu/libQt5DBus.so.5
#2 0x09f214a4 in ?? () from /usr/lib/powerpc-linux-gnu/libQt5DBus.so.5
#3 0x0c1b6410 in ?? () from /usr/lib/powerpc-linux-gnu/libQt5Core.so.5
#4 0x0ffc4500 in start_thread (arg=0xb4e46460) at pthread_create.c:335
#5 0x0fd279ac in clone () at ../sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S:91

(gdb) info threads
Id Target Id Frame
1 Thread 0xb7fbe2c0 (LWP 6360) "python3" 0x0ffccb98 in __pthread_cond_wait (cond=0x10fcf4e8, mutex=0x10fcf4d0) at pthread_cond_wait.c:186
2 Thread 0xb6a4e460 (LWP 6374) "QXcbEventReader" 0x0fd1aec8 in poll () at ../sysdeps/unix/syscall-template.S:84
3 Thread 0xb60ff460 (LWP 6375) "gmain" 0x0fd1aec8 in poll () at ../sysdeps/unix/syscall-template.S:84
4 Thread 0xb58ff460 (LWP 6376) "gdbus" 0x0fd1aec8 in poll () at ../sysdeps/unix/syscall-template.S:84

• 5 Thread 0xb4e46460 (LWP 6377) "QDBusConnection" 0x0c41c5ec in QObject::disconnect(QObject const*, char const*, QObject const*, char const*) ()
  from /usr/lib/powerpc-linux-gnu/libQt5Core.so.5
  6 Thread 0xb3955460 (LWP 6380) "python3" 0x0ffccb98 in __pthread_cond_wait (cond=0x88da218, mutex=0x88da200) at pthread_cond_wait.c:186
  7 Thread 0xb2fcb460 (LWP 6381) "python3" 0x0ffccb98 in __pthread_cond_wait (cond=0xb309c160, mutex=0xb309c144) at pthread_cond_wait.c:186
  8 Thread 0xb234f460 (LWP 6382) "Qt bearer threa" 0x0fd1aec8 in poll () at ../sysdeps/unix/syscall-template.S:84
  17 Thread 0xae864460 (LWP 6401) "QFileInfoGather" 0x0ffccb98 in __pthread_cond_wait (cond=0x11a593e8, mutex=0x11a593d0) at pthread_cond_wait.c:186
  18 Thread 0xae064460 (LWP 6402) "QFileInfoGather" 0x0ffccb98 in __pthread_cond_wait (cond=0x11aeba58, mutex=0x11aeba40) at pthread_cond_wait.c:186
  19 Thread 0xad3a4460 (LWP 6403) "QFileInfoGather" 0x0ffccb98 in __pthread_cond_wait (cond=0x11af3a38, mutex=0x11af3a20) at pthread_cond_wait.c:186
  21 Thread 0xac2e4460 (LWP 6418) "python3" 0x0fd2a320 in accept4 (fd=512, addr=..., addr_len=0xac2e37bc, flags=524288)
  at ../sysdeps/unix/sysv/linux/accept4.c:40
  22 Thread 0xabae4460 (LWP 6419) "python3" 0x0fd2a320 in accept4 (fd=512, addr=..., addr_len=0xabae37bc, flags=524288)
  at ../sysdeps/unix/sysv/linux/accept4.c:40
  23 Thread 0xab2a4460 (LWP 6423) "python3" 0x0fd28408 in epoll_wait () at ../sysdeps/unix/syscall-template.S:84
  24 Thread 0xaaaa4460 (LWP 6424) "python3" 0x0fd28408 in epoll_wait () at ../sysdeps/unix/syscall-template.S:84

(gdb) info registers
r0 0x9f38af4 166955764
r1 0xb4e45b70 3034864496
r2 0xb4e4d930 3034896688
r3 0x115ec2b0 291422896
r4 0x0 0
r5 0xb4f08ae0 3035663072
r6 0x0 0
r7 0x94 148
r8 0xb4f06b30 3035654960
r9 0x11a01bc 18481596
r10 0xb4f292e0 3035796192
r11 0xc41c390 205636496
r12 0x28288848 673744968
r13 0x1045a004 272998404
r14 0xb7fff018 3087003672
r15 0xffed2a4 268358308
r16 0xb4e464c0 3034866880
r17 0x9fbdb64 167500644
r18 0xbfffda28 3221215784
r19 0xc1b6250 203121232
r20 0xffef2ec 268366572
r21 0x0 0
r22 0x0 0
r23 0x0 0
r24 0xb4f292f0 3035796208
r25 0xb4e45ce8 3034864872
r26 0x115ec2b0 291422896
r27 0xb4f08ae0 3035663072
r28 0xb15e8fa 185985274
r29 0xc4eb02c 206483500
r30 0xc6a7d04 208305412
r31 0x0 0
pc 0xc41c5ec 0xc41c5ec <QObject::disconnect(QObject const*, char const*, QObject const*, char const*)+604>
msr 0xd932 55602
cr 0x48288842 1210615874
lr 0xc41c39c 0xc41c39c <QObject::disconnect(QObject const*, char const*, QObject const*, char const*)+12>
ctr 0xc41c390 205636496
xer 0x20000000 536870912
orig_r3 0xe 14
trap 0x300 768

Version and main components

• Spyder Version: 3.0.2
• Python Version: 3.5.3rc1
• Qt Versions: 5.7.1, PyQt5 5.7 on Linux

Dependencies

pyflakes >=0.6.0 :  1.3.0 (OK)
pep8 >=0.6       :  1.7.0 (OK)
pygments >=2.0   :  2.1.3 (OK)
qtconsole >=4.2.0:  4.2.1 (OK)
nbconvert >=4.0  :  5.0.0 (OK)
pandas >=0.13.1  :  0.19.2 (OK)
numpy >=1.7      :  1.12.0rc2 (OK)
sphinx >=0.6.6   :  1.4.9 (OK)
rope >=0.9.4     :  0.10.3 (OK)
jedi >=0.8.1     :  0.9.0 (OK)
psutil >=0.3     :  5.0.1 (OK)
matplotlib >=1.0 :  1.5.3 (OK)
sympy >=0.7.3    :  None (NOK)
pylint >=0.25    :  1.5.6 (OK)

[robwhalliday]

Recent update the python3-pyqt5 appears to have fixed.

[ccordoba12]

Thanks for letting us know about it, and glad to know things are working fine for you now :-)