1.3.27 doesn't seem quite NPTL ready, it always crashes at shutdown here on Fedora Core 4 (IIRC also on FC3 and 1.3.2x the last time I tried). No such problems when setting LD_ASSUME_KERNEL=2.4.1. The backtrace I'm able to obtain looks pretty much useless, but always practically the same, here goes anyway: #0 0x00ddd223 in _Unwind_DeleteException () from /lib/libgcc_s.so.1 #1 0x00dddf82 in _Unwind_Backtrace () from /lib/libgcc_s.so.1 #2 0x00dde015 in _Unwind_ForcedUnwind () from /lib/libgcc_s.so.1 #3 0x00b65c5e in _Unwind_ForcedUnwind () from /lib/libpthread.so.0 #4 0x00b63cc7 in __pthread_unwind () from /lib/libpthread.so.0 #5 0x00b5e3a8 in sigcancel_handler () from /lib/libpthread.so.0 #6 0x00b6f440 in __kernel_sigreturn () #7 0x00b6f402 in __kernel_vsyscall () #8 0x008e6ee6 in __nanosleep_nocancel () from /lib/libc.so.6 #9 0x0091dce7 in usleep () from /lib/libc.so.6 #10 0x00159b82 in ?? () #11 0x00002710 in ?? () #12 0xffffffff in ?? () #13 0x00000000 in ?? () (gdb) (Yes, I have the debug symbols for VDR available and installed.) This is a pretty much patched VDR with lots of plugins, neither of which I can really disable. Perhaps someone with a more vanilla setup can reproduce?