Package: perl Version: 5.8.8-4 Severity: normal
The perl program in question is a single thread process using Net::Pcap to capture and analyze network traffic. Every few weeks the program hangs in pthread_setcanceltype(). Following is some additional diagnostics info: `gdb program PID_of_perl_process` 0xf7e75189 in pthread_setcanceltype () from /lib/tls/libc.so.6 (gdb) backtrace #0 0xf7e75189 in pthread_setcanceltype () from /lib/tls/libc.so.6 #1 0x080c7d1e in Perl_sv_clear () #2 0x080c7e75 in Perl_sv_free () #3 0x080b41b6 in Perl_sighandler () #4 <signal handler called> #5 0xf7dfd23a in free () from /lib/tls/libc.so.6 #6 0xf7dfedfc in malloc () from /lib/tls/libc.so.6 #7 0x080ab78f in Perl_safesysmalloc () #8 0x080c9ad8 in Perl_sv_grow () #9 0x080d79b0 in Perl_sv_setsv_flags () #10 0x080d8903 in Perl_sv_mortalcopy () #11 0x080c542b in Perl_pp_aelem () #12 0x080bd469 in Perl_runops_standard () #13 0x08060ffd in Perl_get_cv () #14 0x080647cc in Perl_call_sv () #15 0xf7d14c76 in callback_wrapper () from /usr/lib/perl5/auto/Net/Pcap/Pcap.so #16 0xf7ced551 in pcap_read () from /usr/lib/libpcap.so.0.7 #17 0xf7ceeb0a in pcap_loop () from /usr/lib/libpcap.so.0.7 #18 0xf7d187e0 in XS_Net__Pcap_loop () from /usr/lib/perl5/auto/Net/Pcap/Pcap.so #19 0x080c4981 in Perl_pp_entersub () #20 0x080bd469 in Perl_runops_standard () #21 0x08065422 in perl_run () #22 0x0805ffcd in main () `ps aux | grep programname` userid 13868 0.4 0.8 19496 16828 pts/2 S+ Feb22 75:01 /usr/bin/perl -w /dev/fd/3/./programname `cat /proc/programPID/wchan` _stext I'm investigating is forcing LinuxThreads instead of NPTL will bypass the issue. Also, I've had a RHEL4 machine hang in futex. Can you please that perl interpreter with single threaded code does not explicitly call pthreads? Thanks, Michal -- System Information: Debian Release: testing/unstable APT prefers stable APT policy: (500, 'stable'), (90, 'testing') Architecture: i386 (x86_64) Shell: /bin/sh linked to /bin/bash Kernel: Linux 2.6.18-ncdm-amd64-k8 Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) Versions of packages perl depends on: ii libc6 2.3.6-7 GNU C Library: Shared libraries ii libdb4.4 4.4.20-3 Berkeley v4.4 Database Libraries [ ii libgdbm3 1.8.3-3 GNU dbm database routines (runtime ii perl-base 5.8.8-4 The Pathologically Eclectic Rubbis ii perl-modules 5.8.8-4 Core Perl modules Versions of packages perl recommends: ii perl-doc 5.8.8-6.1 Perl documentation -- no debconf information -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
