Skype Community > idle screensaver crash

Mikel Ward (Work)

Wed Jun 24 2009, 05:27

Since I upgraded to Ubuntu 9.04, Skype has started crashing.

I noticed it was happening only when I went away from the computer.

Starting it from a terminal with core dumps enabled gives this information:

CODE

$ skype
skype: ../../src/xcb_io.c:242: process_responses: Assertion `(((long) (dpy->last_request_read) - (long) (dpy->request)) <= 0)' failed.
zsh: abort (core dumped)  skype

$ gdb skype core.32239
(no debugging symbols found)
...

gdb> where
#0  0xb806a430 in __kernel_vsyscall ()
#1  0xb6f406d0 in raise () from /lib/tls/i686/cmov/libc.so.6
#2  0xb6f42098 in abort () from /lib/tls/i686/cmov/libc.so.6
#3  0xb6f395ce in __assert_fail () from /lib/tls/i686/cmov/libc.so.6
#4  0xb6e667d7 in ?? () from /usr/lib/libX11.so.6
#5  0xb6e66ccd in _XReply () from /usr/lib/libX11.so.6
#6  0xb7f81506 in XScreenSaverQueryInfo () from /usr/lib/libXss.so.1
#7  0x08648892 in ?? ()
#8  0x083f0790 in ?? ()
#9  0x0828b69c in ?? ()
#10 0x082f36ae in ?? ()
#11 0xb71a24ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#12 0xb6ff949e in clone () from /lib/tls/i686/cmov/libc.so.6

I'm going to try disabling my screen saver, which I hope will fix the problem.

Mikel Ward (Work)

Wed Jul 1 2009, 01:18

Disabling the screensaver has not prevented the problem, however I do lock my screen when I leave my computer, and that uses the screensaver.

Am I the only one having this problem?

bigblen

Fri Jul 3 2009, 02:43

No. I get similar (Ubuntu 9.04)

*** glibc detected *** /usr/bin/skype.real: double free or corruption (fasttop): 0xb509d018 ***
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6[0xb6edc604]
/lib/tls/i686/cmov/libc.so.6(cfree+0x96)[0xb6ede5b6]
/usr/lib/libX11.so.6[0xb6dbf6ce]
/usr/lib/libX11.so.6(_XReply+0x10d)[0xb6dbfccd]
/usr/lib/libXss.so.1(XScreenSaverQueryInfo+0x96)[0xb7eda506]
/usr/bin/skype.real[0x8648892]
/usr/bin/skype.real[0x85b4895]

Mikel Ward (Work)

Wed Jul 15 2009, 06:16

https://bugs.launchpad.net/medibuntu/+bug/372593 provides a possible workaround:

CODE

sudo dpkg-divert --rename --add /usr/bin/skype
cat > ~/skype.temp <<"EOF"
#!/bin/bash
export MALLOC_CHECK_=0
LD_PRELOAD=/usr/lib32/libv4l/v4l1compat.so /usr/bin/skype.distrib "$@"
EOF
sudo mv ~/skype.temp /usr/bin/skype
sudo chmod 0755 /usr/bin/skype

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