> [New Thread 0x7ffff54d3700 (LWP 21044)] > > Program received signal SIGSEGV, Segmentation fault. > [Switching to Thread 0x7ffff697a700 (LWP 21033)]
I assume that's the pthread scheduler thread and the library support built on the system does not include symbols for it. More interestingly I assume 21044 is the interesting thread, because it was running memcpy when we crashed. So... > 0x0000000000000000 in ?? () > (gdb) bt > #0 0x0000000000000000 in ?? () > #1 0x0000000000000000 in ?? () > (gdb) thread > [Current thread is 2 (Thread 0x7ffff697a700 (LWP 21033))] > (gdb) help thread > Use this command to switch between threads. > The new thread ID must be currently known. > > List of thread subcommands: > > thread apply -- Apply a command to a list of threads > thread find -- Find threads that match a regular expression > thread name -- Set the current thread's name > > Type "help thread" followed by thread subcommand name for full documentation. > Type "apropos word" to search for commands related to "word". > Command name abbreviations are allowed if unambiguous. > (gdb) thread apply gdb > (gdb) thread apply bt > (gdb) thread apply bt all > (gdb) help thread apply > Apply a command to a list of threads. > > List of thread apply subcommands: > > thread apply all -- Apply a command to all threads > > Type "help thread apply" followed by thread apply subcommand name for full > documentation. > Type "apropos word" to search for commands related to "word". > Command name abbreviations are allowed if unambiguous. > (gdb) thread apply all bt > > Thread 13 (Thread 0x7ffff54d3700 (LWP 21044)): > #0 __memcpy_ssse3 () at ../sysdeps/x86_64/multiarch/memcpy-ssse3.S:385 > #1 0x000000000040402f in uafs_InitThread () > #2 0x0000000000404075 in get_user_struct () > #3 0x0000000000405c4d in call_syscall () > #4 0x000000000040e79d in afsd_call_syscall () > #5 0x000000000040ba6c in call_syscall_thread () > #6 0x00007ffff7797b50 in start_thread (arg=<optimized out>) at > pthread_create.c:304 > #7 0x00007ffff6a5390d in clone () at > ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 > #8 0x0000000000000000 in ?? () Get a real line number for uafs_InitThread (you probably need to fix OPTF=-O2 in src/libuafs/Makefile or Makefile.common and remake libuafs; This is a bug I noticed last night and haven't fixed, namely, that --enable-debug doesn't override this.) My offhand guess would be an alignment issue. -- Derrick _______________________________________________ OpenAFS-devel mailing list OpenAFS-devel@openafs.org https://lists.openafs.org/mailman/listinfo/openafs-devel
