retitle 755053 nscd crashes frequently thanks Some more information after some debugging: nscd isn't exiting, it's crashing. According to the kernel:
Jul 21 11:25:11 oxylus kernel: nscd[12517]: segfault at 10 ip 0000000000404835 sp 00007fffbac00230 error 6 in nscd[400000+1d000] The instruction pointer and error code are always the same; the stack pointer varies. Less regularly there is a different message, again with the same ip and error, different sp: Jul 18 16:01:00 oxylus kernel: traps: nscd[2063] general protection ip:410fe4 sp:7f43b80131e0 error:0 in nscd[400000+1d000] The core files produced by the crash vary: -rw------- 1 root staff 450560 Jul 21 11:25 core.1405938311.nscd.12517 -rw------- 1 root staff 450560 Jul 21 11:25 core.1405938311.nscd.12509 -rw------- 1 root staff 450560 Jul 21 11:25 core.1405938311.nscd.12502 -rw------- 1 root staff 450560 Jul 21 11:25 core.1405938311.nscd.12490 -rw------- 1 root staff 450560 Jul 18 16:01 core.1405695660.nscd.2090 -rw------- 1 root staff 450560 Jul 18 16:01 core.1405695660.nscd.2077 -rw------- 1 root staff 15196160 Jul 18 16:01 core.1405695660.nscd.2057 -rw------- 1 root staff 450560 Jul 18 16:01 core.1405695660.nscd.2047 -rw------- 1 root staff 15241216 Jul 18 16:01 core.1405695660.nscd.941 -rw------- 1 root staff 450560 Jul 18 15:57 core.1405695423.nscd.931 -rw------- 1 root staff 450560 Jul 18 15:57 core.1405695423.nscd.919 -rw------- 1 root staff 450560 Jul 18 15:57 core.1405695423.nscd.910 -rw------- 1 root staff 15376384 Jul 18 15:57 core.1405695423.nscd.6875 -rw------- 1 root staff 450560 Jul 18 14:00 core.1405688417.nscd.6867 -rw------- 1 root staff 450560 Jul 18 14:00 core.1405688417.nscd.6855 -rw------- 1 root staff 450560 Jul 18 14:00 core.1405688416.nscd.6847 -rw------- 1 root staff 450560 Jul 18 14:00 core.1405688416.nscd.6837 -rw------- 1 root staff 17481728 Jul 18 14:00 core.1405688416.nscd.11188 -rw------- 1 root staff 15196160 Jul 18 10:08 core.1405674489.nscd.11166 -rw------- 1 root staff 49029120 Jul 18 10:08 core.1405674489.nscd.12591 -rw------- 1 root staff 450560 Jul 17 16:57 core.1405612661.nscd.12584 -rw------- 1 root staff 450560 Jul 17 16:57 core.1405612661.nscd.12576 -rw------- 1 root staff 450560 Jul 17 16:57 core.1405612661.nscd.12569 -rw------- 1 root staff 450560 Jul 17 16:57 core.1405612661.nscd.12560 -rw------- 1 root staff 15196160 Jul 17 16:57 core.1405612660.nscd.12329 -rw------- 1 root staff 450560 Jul 17 16:57 core.1405612641.nscd.12322 -rw------- 1 root staff 450560 Jul 17 16:57 core.1405612641.nscd.12315 -rw------- 1 root staff 446464 Jul 17 16:51 core.1405612269.nscd.10456 -rw------- 1 root staff 446464 Jul 17 16:51 core.1405612269.nscd.10449 -rw------- 1 root staff 446464 Jul 17 16:51 core.1405612269.nscd.10442 -rw------- 1 root staff 446464 Jul 17 16:51 core.1405612269.nscd.10432 -rw------- 1 root staff 446464 Jul 17 16:49 core.1405612163.nscd.9976 -rw------- 1 root staff 446464 Jul 17 16:49 core.1405612162.nscd.9969 -rw------- 1 root staff 446464 Jul 17 16:49 core.1405612149.nscd.9873 -rw------- 1 root staff 446464 Jul 17 16:49 core.1405612149.nscd.9866 -rw------- 1 root staff 446464 Jul 17 16:49 core.1405612149.nscd.9859 -rw------- 1 root staff 446464 Jul 17 16:49 core.1405612148.nscd.9848 The larger core files are from the general protection faults; the smaller ones are from the segfaults. Sadly neither seem too useful: $ gdb --silent -c /var/local/core/core.1405938311.nscd.12517 [New LWP 12517] warning: no loadable sections found in added symbol-file system-supplied DSO at 0x7fffbadac000 Core was generated by `/usr/sbin/nscd'. Program terminated with signal 11, Segmentation fault. #0 0x0000000000404835 in ?? () warning: not using untrusted file ".gdbinit" (gdb) bt #0 0x0000000000404835 in ?? () #1 0x0000000000000021 in ?? () #2 0x00007fdaec2a65c0 in ?? () #3 0x0000000000000001 in ?? () #4 0x0000000000000000 in ?? () $ gdb --silent -c /var/local/core/core.1405695660.nscd.2057 [New LWP 2063] [New LWP 2057] [New LWP 2062] [New LWP 2059] [New LWP 2060] [New LWP 2061] [New LWP 2064] [New LWP 2058] warning: no loadable sections found in added symbol-file system-supplied DSO at 0x7fff621fe000 Core was generated by `/usr/sbin/nscd'. Program terminated with signal 11, Segmentation fault. #0 0x0000000000410fe4 in ?? () warning: not using untrusted file ".gdbinit" (gdb) bt #0 0x0000000000410fe4 in ?? () #1 0x00007f43b8013778 in ?? () #2 0x00007f43b80137f0 in ?? () #3 0x00007f43b8013710 in ?? () #4 0x0000000053c936ac in ?? () #5 0x000073756c79786f in ?? () #6 0x0000000000000000 in ?? () -- Sam Morris <https://robots.org.uk/> 3412 EA18 1277 354B 991B C869 B219 7FDB 5EA0 1078 -- To UNSUBSCRIBE, email to debian-glibc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20140721104407.ga31...@traxus.robots.org.uk