Package: libc6 Version: 2.3.2.ds1-22 Severity: normal When calling pthread_exit in a program which has called chroot, the program exits with the error message
libgcc_s.so.1 must be installed for pthread_cancel to work The problem is that the nptl library needs the stack unwind code from libgcc_s.so.1, and it uses dlopen to load this library. I tried to install arlad, configured to use posix threads. This program chroots to /usr/arla/cache at startup, before doing any interesting thread operations. Then the later dlopen by the nptl code naturally fails, and it displays the above error message and calls _exit. I'm not terribly familiar with the POSIX standard or with POSIX threads, but it seems unintuitive and probably not standards compliant that a threaded server program can't use chroot at startup. A workaround seems to be to link the program with an explicit -lgcc_s on the command line, in addition to -lpthread, but as far as I understand, one should never need to link explicitly with libgcc_s. Regards, /Niels -- System Information: Debian Release: 3.1 Architecture: i386 (i686) Kernel: Linux 2.6.16.1-nisse Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1) Versions of packages libc6 depends on: ii libdb1-compat 2.1.3-7 The Berkeley database routines [gl -- no debconf information
