amule assert failure: *** buffer overflow detected ***: amule terminated

[Danilo Piazzalunga]

Automatic crash report generated by apport.

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: amule 2.3.1-11
ProcVersionSignature: Ubuntu 3.13.0-8.27-generic 3.13.2
Uname: Linux 3.13.0-8-generic x86_64
ApportVersion: 2.13.2-0ubuntu2
Architecture: amd64
AssertionMessage: *** buffer overflow detected ***: amule terminated
CurrentDesktop: Unity
Date: Wed Feb 12 03:15:08 2014
ExecutablePath: /usr/bin/amule
InstallationDate: Installed on 2013-12-27 (46 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
ProcCmdline: amule
ProcEnviron:
 LANGUAGE=it_IT
 PATH=(custom, user)
 XDG_RUNTIME_DIR=<set>
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
Signal: 6
SourcePackage: amule
StacktraceTop:
 __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7f542b7148de "*** %s ***: %s terminated\n") at ../sysdeps/posix/libc_fatal.c:175
 __GI___fortify_fail (msg=<optimized out>, msg@entry=0x7f542b714875 "buffer overflow detected") at fortify_fail.c:37
 __GI___chk_fail () at chk_fail.c:28
 __fdelt_chk (d=<optimized out>) at fdelt_chk.c:25
 GSocket::Input_Timeout() () from /usr/lib/x86_64-linux-gnu/libwx_baseu_net-2.8.so.0
Title: amule assert failure: *** buffer overflow detected ***: amule terminated
UpgradeStatus: Upgraded to trusty on 2013-12-31 (43 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7f542b7148de "*** %s ***: %s terminated\n") at ../sysdeps/posix/libc_fatal.c:175
 __GI___fortify_fail (msg=<optimized out>, msg@entry=0x7f542b714875 "buffer overflow detected") at fortify_fail.c:37
 __GI___chk_fail () at chk_fail.c:28
 __fdelt_chk (d=<optimized out>) at fdelt_chk.c:25
 GSocket::Input_Timeout() () from /tmp/apport_sandbox_b3yFVu/usr/lib/x86_64-linux-gnu/libwx_baseu_net-2.8.so.0

[Seth Arnold (seth-arnold)]

I believe this crash happened because the number of file descriptors open in the process was above 1024, the limit for the select() system call that is used in the underlying wxWidgets toolkit. I suggest using 'ulimit -n 1023' (or pick a smaller number) in whatever shell is used to start amule.

Ideally, amule would either manage its file descriptors more carefully or amule would switch to using the epoll API for socket readiness notification, either via a different wxWidgets API (if one is available) or managing its own sockets.

I suggest filing a bug with upstream amule developers.

Thanks for reporting this issue to Ubuntu.