Worker package crashes in avfs with Ubuntu 12.04 i386

Stacktrace :

 #0 0x0023c757 in strchrnul () from /lib/i386-linux-gnu/libc.so.6
 No symbol table info available.
 #1 0x001fe8a9 in vfprintf () from /lib/i386-linux-gnu/libc.so.6
 No symbol table info available.
 #2 0x002bc8f1 in __vfprintf_chk () from /lib/i386-linux-gnu/libc.so.6
 No symbol table info available.
 #3 0x002a45da in __vsyslog_chk () from /lib/i386-linux-gnu/libc.so.6
 No symbol table info available.
 #4 0x002a49f7 in __syslog_chk () from /lib/i386-linux-gnu/libc.so.6
 No symbol table info available.
 #5 0x00b8c6e2 in ?? () from /usr/lib/libavfs.so.0
 No symbol table info available.
 #6 0x00baafca in ?? () from /usr/lib/libavfs.so.0
 No symbol table info available.
 #7 0x00badecb in ?? () from /usr/lib/libavfs.so.0
 No symbol table info available.
 #8 0x00b8f9de in ?? () from /usr/lib/libavfs.so.0
 No symbol table info available.
 #9 0x00b9459f in ?? () from /usr/lib/libavfs.so.0
 No symbol table info available.
 #10 0x00b94658 in ?? () from /usr/lib/libavfs.so.0
 No symbol table info available.
 #11 0x080fa610 in ?? ()

I had to recompile Worker without avfs support to have it work.
It was working fine on Ubuntu 11.10 but crashes on Ubuntu 12.04 because of a bug in avfs.
Package : Worker 2.18.1-1