Hi Henrik! Two months ago you suggested me to run squid through the valgrind (sorry for not replying). Could you please have a look at the result and advice the direction for further investigation? The valgrind output is below. Thank you, Anton Golubev ENGECON [root@ ~]# valgrind -v --show-reachable=yes squid ==16329== Memcheck, a memory error detector. ==16329== Copyright (C) 2002-2005, and GNU GPL'd, by Julian Seward et al. ==16329== Using LibVEX rev 1575, a library for dynamic binary translation. ==16329== Copyright (C) 2004-2005, and GNU GPL'd, by OpenWorks LLP. ==16329== Using valgrind-3.1.1, a dynamic binary instrumentation framework. ==16329== Copyright (C) 2000-2005, and GNU GPL'd, by Julian Seward et al. ==16329== --16329-- Command line --16329-- squid --16329-- Startup, with flags: --16329-- -v --16329-- --show-reachable=yes --16329-- Contents of /proc/version: --16329-- Linux version 2.6.9-42.EL (buildcentos@build-i386) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-3)) #1 Sat Aug 12 09:17:58 CDT 2006 --16329-- Arch and subarch: X86, x86-sse2 --16329-- Valgrind library directory: /usr/lib/valgrind --16329-- Reading syms from /lib/ld-2.3.4.so (0x4000000) --16329-- Reading syms from /usr/local/sbin/squid (0x8048000) --16329-- Reading syms from /usr/lib/valgrind/x86-linux/memcheck (0xB0000000) --16329-- object doesn't have a dynamic symbol table --16329-- Reading suppressions file: /usr/lib/valgrind/default.supp --16329-- REDIR: 0x4012450 (index) redirected to 0xB001BC86 (vgPlain_x86_linux_REDIR_FOR_index) --16329-- Reading syms from /usr/lib/valgrind/x86-linux/vgpreload_core.so (0x4018000) --16329-- Reading syms from /usr/lib/valgrind/x86-linux/vgpreload_memcheck.so (0x401B000) --16329-- REDIR: 0x40125F0 (strlen) redirected to 0x401DE90 (strlen) --16329-- Reading syms from /lib/libcrypt-2.3.4.so (0x402A000) --16329-- Reading syms from /lib/tls/libpthread-2.3.4.so (0x4058000) --16329-- Reading syms from /lib/tls/libm-2.3.4.so (0x406A000) --16329-- Reading syms from /lib/libnsl-2.3.4.so (0x408D000) --16329-- Reading syms from /lib/tls/libc-2.3.4.so (0x40A3000) --16329-- REDIR: 0x40007A0 (_dl_sysinfo_int80) redirected to 0xB001BC83 (???) --16329-- REDIR: 0x410D870 (memset) redirected to 0x401E588 (memset) --16329-- REDIR: 0x410DD90 (memcpy) redirected to 0x401E1A8 (memcpy) --16329-- REDIR: 0x410CA10 (rindex) redirected to 0x401DB9C (rindex) --16329-- REDIR: 0x4108910 (mallopt) redirected to 0x401D8AA (mallopt) --16329-- REDIR: 0x410E5F0 (rawmemchr) redirected to 0x401E618 (rawmemchr) --16329-- REDIR: 0x410C630 (strlen) redirected to 0x401DE74 (strlen) --16329-- REDIR: 0x4107660 (malloc) redirected to 0x401C386 (malloc) --16329-- REDIR: 0x4107380 (calloc) redirected to 0x401D639 (calloc) --16329-- REDIR: 0x4107CA0 (realloc) redirected to 0x401D6E4 (realloc) --16329-- REDIR: 0x410C0D0 (strcmp) redirected to 0x401E114 (strcmp) --16329-- REDIR: 0x410D370 (memchr) redirected to 0x401E184 (memchr) --16329-- REDIR: 0x410BF60 (index) redirected to 0x401DC4C (index) --16329-- REDIR: 0x410C140 (strcpy) redirected to 0x401DEC8 (strcpy) --16329-- REDIR: 0x41055B0 (free) redirected to 0x401CE7D (free) --16329-- REDIR: 0x410C830 (strncmp) redirected to 0x401E0C4 (strncmp) --16329-- REDIR: 0x410E6C0 (strchrnul) redirected to 0x401E5FC (strchrnul) --16329-- REDIR: 0x410DA60 (stpcpy) redirected to 0x401E348 (stpcpy) --16329-- Reading syms from /lib/libnss_files-2.3.4.so (0x42DB000) --16329-- Reading syms from /lib/libnss_dns-2.3.4.so (0x4021000) --16329-- Reading syms from /lib/libresolv-2.3.4.so (0x42E6000) --16329-- REDIR: 0x410C950 (strncpy) redirected to 0x401DF84 (strncpy) --16329-- REDIR: 0x410C6E0 (strnlen) redirected to 0x401DE50 (strnlen) --16329-- discard syms at 0x42DB000-0x42E6000 in /lib/libnss_files-2.3.4.so due to munmap() --16329-- discard syms at 0x4021000-0x4027000 in /lib/libnss_dns-2.3.4.so due to munmap() --16329-- discard syms at 0x42E6000-0x42F9000 in /lib/libresolv-2.3.4.so due to munmap() ==16329== ==16329== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 27 from 2) --16329-- --16329-- supp: 21 Ubuntu-stripped-ld.so --16329-- supp: 6 dl_relocate_object ==16329== malloc/free: in use at exit: 717,860 bytes in 1,271 blocks. ==16329== malloc/free: 1,681 allocs, 410 frees, 748,566 bytes allocated. ==16329== ==16329== searching for pointers to 1,271 not-freed blocks. ==16329== checked 1,890,128 bytes. ==16329== ==16329== LEAK SUMMARY: ==16329== definitely lost: 0 bytes in 0 blocks. ==16329== possibly lost: 3,192 bytes in 95 blocks. ==16329== still reachable: 714,668 bytes in 1,176 blocks. ==16329== suppressed: 0 bytes in 0 blocks. --16329-- memcheck: sanity checks: 18 cheap, 1 expensive --16329-- memcheck: auxmaps: 0 auxmap entries (0k, 0M) in use --16329-- memcheck: auxmaps: 0 searches, 0 comparisons --16329-- memcheck: secondaries: 30 issued (1920k, 1M) --16329-- memcheck: secondaries: 54 accessible and distinguished (3456k, 3M) --16329-- tt/tc: 20,739 tt lookups requiring 21,882 probes --16329-- tt/tc: 20,739 fast-cache updates, 6 flushes --16329-- translate: new 7,725 (157,693 -> 2,835,558; ratio 179:10) [0 scs] --16329-- translate: dumped 0 (0 -> ??) --16329-- translate: discarded 607 (12,936 -> ??) --16329-- scheduler: 932,092 jumps (bb entries). --16329-- scheduler: 18/15,346 major/minor sched events. --16329-- sanity: 19 cheap, 1 expensive checks. --16329-- exectx: 30,011 lists, 428 contexts (avg 0 per list) --16329-- exectx: 2,118 searches, 1,692 full compares (798 per 1000) --16329-- exectx: 0 cmp2, 80 cmp4, 0 cmpAll --16331-- discard syms at 0x42DB000-0x42E6000 in /lib/libnss_files-2.3.4.so due to munmap() --16331-- discard syms at 0x4021000-0x4027000 in /lib/libnss_dns-2.3.4.so due to munmap() --16331-- discard syms at 0x42E6000-0x42F9000 in /lib/libresolv-2.3.4.so due to munmap() ==16331== ==16331== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 27 from 2) --16331-- --16331-- supp: 21 Ubuntu-stripped-ld.so --16331-- supp: 6 dl_relocate_object ==16331== malloc/free: in use at exit: 717,860 bytes in 1,271 blocks. ==16331== malloc/free: 1,681 allocs, 410 frees, 748,566 bytes allocated. ==16331== ==16331== searching for pointers to 1,271 not-freed blocks. ==16331== checked 1,890,124 bytes. ==16331== ==16331== LEAK SUMMARY: ==16331== definitely lost: 0 bytes in 0 blocks. ==16331== possibly lost: 3,192 bytes in 95 blocks. ==16331== still reachable: 714,668 bytes in 1,176 blocks. ==16331== suppressed: 0 bytes in 0 blocks. --16331-- memcheck: sanity checks: 18 cheap, 1 expensive --16331-- memcheck: auxmaps: 0 auxmap entries (0k, 0M) in use --16331-- memcheck: auxmaps: 0 searches, 0 comparisons --16331-- memcheck: secondaries: 30 issued (1920k, 1M) --16331-- memcheck: secondaries: 54 accessible and distinguished (3456k, 3M) --16331-- tt/tc: 20,709 tt lookups requiring 21,859 probes --16331-- tt/tc: 20,709 fast-cache updates, 6 flushes --16331-- translate: new 7,669 (156,655 -> 2,821,259; ratio 180:10) [0 scs] --16331-- translate: dumped 0 (0 -> ??) --16331-- translate: discarded 607 (12,936 -> ??) --16331-- scheduler: 931,529 jumps (bb entries). --16331-- scheduler: 18/15,381 major/minor sched events. --16331-- sanity: 19 cheap, 1 expensive checks. --16331-- exectx: 30,011 lists, 428 contexts (avg 0 per list) --16331-- exectx: 2,118 searches, 1,692 full compares (798 per 1000) --16331-- exectx: 0 cmp2, 80 cmp4, 0 cmpAll --16342-- discard syms at 0x42DB000-0x42E6000 in /lib/libnss_files-2.3.4.so due to munmap() --16342-- discard syms at 0x4021000-0x4027000 in /lib/libnss_dns-2.3.4.so due to munmap() --16342-- discard syms at 0x42E6000-0x42F9000 in /lib/libresolv-2.3.4.so due to munmap() ==16342== ==16342== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 27 from 2) --16342-- --16342-- supp: 21 Ubuntu-stripped-ld.so --16342-- supp: 6 dl_relocate_object ==16342== malloc/free: in use at exit: 717,860 bytes in 1,271 blocks. ==16342== malloc/free: 1,703 allocs, 432 frees, 767,174 bytes allocated. ==16342== ==16342== searching for pointers to 1,271 not-freed blocks. ==16342== checked 1,890,140 bytes. ==16342== ==16342== LEAK SUMMARY: ==16342== definitely lost: 0 bytes in 0 blocks. ==16342== possibly lost: 3,192 bytes in 95 blocks. ==16342== still reachable: 714,668 bytes in 1,176 blocks. ==16342== suppressed: 0 bytes in 0 blocks. --16342-- memcheck: sanity checks: 18 cheap, 1 expensive --16342-- memcheck: auxmaps: 0 auxmap entries (0k, 0M) in use --16342-- memcheck: auxmaps: 0 searches, 0 comparisons --16342-- memcheck: secondaries: 31 issued (1984k, 1M) --16342-- memcheck: secondaries: 54 accessible and distinguished (3456k, 3M) --16342-- tt/tc: 21,587 tt lookups requiring 22,915 probes --16342-- tt/tc: 21,587 fast-cache updates, 6 flushes --16342-- translate: new 8,097 (166,847 -> 2,981,031; ratio 178:10) [0 scs] --16342-- translate: dumped 0 (0 -> ??) --16342-- translate: discarded 607 (12,936 -> ??) --16342-- scheduler: 938,637 jumps (bb entries). --16342-- scheduler: 18/15,905 major/minor sched events. --16342-- sanity: 19 cheap, 1 expensive checks. --16342-- exectx: 30,011 lists, 457 contexts (avg 0 per list) --16342-- exectx: 2,160 searches, 1,705 full compares (789 per 1000) --16342-- exectx: 0 cmp2, 80 cmp4, 0 cmpAll --16354-- discard syms at 0x42DB000-0x42E6000 in /lib/libnss_files-2.3.4.so due to munmap() --16354-- discard syms at 0x4021000-0x4027000 in /lib/libnss_dns-2.3.4.so due to munmap() --16354-- discard syms at 0x42E6000-0x42F9000 in /lib/libresolv-2.3.4.so due to munmap() ==16354== ==16354== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 27 from 2) --16354-- --16354-- supp: 21 Ubuntu-stripped-ld.so --16354-- supp: 6 dl_relocate_object ==16354== malloc/free: in use at exit: 717,860 bytes in 1,271 blocks. ==16354== malloc/free: 1,715 allocs, 444 frees, 784,553 bytes allocated. ==16354== ==16354== searching for pointers to 1,271 not-freed blocks. ==16354== checked 1,890,140 bytes. ==16354== ==16354== LEAK SUMMARY: ==16354== definitely lost: 0 bytes in 0 blocks. ==16354== possibly lost: 3,192 bytes in 95 blocks. ==16354== still reachable: 714,668 bytes in 1,176 blocks. ==16354== suppressed: 0 bytes in 0 blocks. --16354-- memcheck: sanity checks: 18 cheap, 1 expensive --16354-- memcheck: auxmaps: 0 auxmap entries (0k, 0M) in use --16354-- memcheck: auxmaps: 0 searches, 0 comparisons --16354-- memcheck: secondaries: 31 issued (1984k, 1M) --16354-- memcheck: secondaries: 54 accessible and distinguished (3456k, 3M) --16354-- tt/tc: 21,605 tt lookups requiring 22,937 probes --16354-- tt/tc: 21,605 fast-cache updates, 6 flushes --16354-- translate: new 8,098 (166,855 -> 2,981,484; ratio 178:10) [0 scs] --16354-- translate: dumped 0 (0 -> ??) --16354-- translate: discarded 607 (12,936 -> ??) --16354-- scheduler: 942,342 jumps (bb entries). --16354-- scheduler: 18/15,966 major/minor sched events. --16354-- sanity: 19 cheap, 1 expensive checks. --16354-- exectx: 30,011 lists, 457 contexts (avg 0 per list) --16354-- exectx: 2,182 searches, 1,727 full compares (791 per 1000) --16354-- exectx: 0 cmp2, 80 cmp4, 0 cmpAll --16363-- discard syms at 0x42DB000-0x42E6000 in /lib/libnss_files-2.3.4.so due to munmap() --16363-- discard syms at 0x4021000-0x4027000 in /lib/libnss_dns-2.3.4.so due to munmap() --16363-- discard syms at 0x42E6000-0x42F9000 in /lib/libresolv-2.3.4.so due to munmap() ==16363== ==16363== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 27 from 2) --16363-- --16363-- supp: 21 Ubuntu-stripped-ld.so --16363-- supp: 6 dl_relocate_object ==16363== malloc/free: in use at exit: 717,860 bytes in 1,271 blocks. ==16363== malloc/free: 1,727 allocs, 456 frees, 801,932 bytes allocated. ==16363== ==16363== searching for pointers to 1,271 not-freed blocks. ==16363== checked 1,890,140 bytes. ==16363== ==16363== LEAK SUMMARY: ==16363== definitely lost: 0 bytes in 0 blocks. ==16363== possibly lost: 3,192 bytes in 95 blocks. ==16363== still reachable: 714,668 bytes in 1,176 blocks. ==16363== suppressed: 0 bytes in 0 blocks. --16363-- memcheck: sanity checks: 18 cheap, 1 expensive --16363-- memcheck: auxmaps: 0 auxmap entries (0k, 0M) in use --16363-- memcheck: auxmaps: 0 searches, 0 comparisons --16363-- memcheck: secondaries: 31 issued (1984k, 1M) --16363-- memcheck: secondaries: 54 accessible and distinguished (3456k, 3M) --16363-- tt/tc: 21,636 tt lookups requiring 22,971 probes --16363-- tt/tc: 21,636 fast-cache updates, 6 flushes --16363-- translate: new 8,105 (167,087 -> 2,985,137; ratio 178:10) [0 scs] --16363-- translate: dumped 0 (0 -> ??) --16363-- translate: discarded 607 (12,936 -> ??) --16363-- scheduler: 946,056 jumps (bb entries). --16363-- scheduler: 18/16,034 major/minor sched events. --16363-- sanity: 19 cheap, 1 expensive checks. --16363-- exectx: 30,011 lists, 457 contexts (avg 0 per list) --16363-- exectx: 2,204 searches, 1,749 full compares (793 per 1000) --16363-- exectx: 0 cmp2, 80 cmp4, 0 cmpAll --16372-- discard syms at 0x42DB000-0x42E6000 in /lib/libnss_files-2.3.4.so due to munmap() --16372-- discard syms at 0x4021000-0x4027000 in /lib/libnss_dns-2.3.4.so due to munmap() --16372-- discard syms at 0x42E6000-0x42F9000 in /lib/libresolv-2.3.4.so due to munmap() ==16372== ==16372== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 27 from 2) --16372-- --16372-- supp: 21 Ubuntu-stripped-ld.so --16372-- supp: 6 dl_relocate_object ==16372== malloc/free: in use at exit: 717,860 bytes in 1,271 blocks. ==16372== malloc/free: 1,739 allocs, 468 frees, 819,311 bytes allocated. ==16372== ==16372== searching for pointers to 1,271 not-freed blocks. ==16372== checked 1,890,140 bytes. ==16372== ==16372== LEAK SUMMARY: ==16372== definitely lost: 0 bytes in 0 blocks. ==16372== possibly lost: 3,192 bytes in 95 blocks. ==16372== still reachable: 714,668 bytes in 1,176 blocks. ==16372== suppressed: 0 bytes in 0 blocks. --16372-- memcheck: sanity checks: 18 cheap, 1 expensive --16372-- memcheck: auxmaps: 0 auxmap entries (0k, 0M) in use --16372-- memcheck: auxmaps: 0 searches, 0 comparisons --16372-- memcheck: secondaries: 31 issued (1984k, 1M) --16372-- memcheck: secondaries: 54 accessible and distinguished (3456k, 3M) --16372-- tt/tc: 21,656 tt lookups requiring 22,995 probes --16372-- tt/tc: 21,656 fast-cache updates, 6 flushes --16372-- translate: new 8,107 (167,117 -> 2,985,525; ratio 178:10) [0 scs] --16372-- translate: dumped 0 (0 -> ??) --16372-- translate: discarded 607 (12,936 -> ??) --16372-- scheduler: 949,762 jumps (bb entries). --16372-- scheduler: 18/16,096 major/minor sched events. --16372-- sanity: 19 cheap, 1 expensive checks. --16372-- exectx: 30,011 lists, 457 contexts (avg 0 per list) --16372-- exectx: 2,226 searches, 1,771 full compares (795 per 1000) --16372-- exectx: 0 cmp2, 80 cmp4, 0 cmpAll --16381-- discard syms at 0x42DB000-0x42E6000 in /lib/libnss_files-2.3.4.so due to munmap() --16381-- discard syms at 0x4021000-0x4027000 in /lib/libnss_dns-2.3.4.so due to munmap() --16381-- discard syms at 0x42E6000-0x42F9000 in /lib/libresolv-2.3.4.so due to munmap() ==16381== ==16381== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 27 from 2) --16381-- --16381-- supp: 21 Ubuntu-stripped-ld.so --16381-- supp: 6 dl_relocate_object ==16381== malloc/free: in use at exit: 717,860 bytes in 1,271 blocks. ==16381== malloc/free: 1,751 allocs, 480 frees, 836,690 bytes allocated. ==16381== ==16381== searching for pointers to 1,271 not-freed blocks. ==16381== checked 1,890,140 bytes. ==16381== ==16381== LEAK SUMMARY: ==16381== definitely lost: 0 bytes in 0 blocks. ==16381== possibly lost: 3,192 bytes in 95 blocks. ==16381== still reachable: 714,668 bytes in 1,176 blocks. ==16381== suppressed: 0 bytes in 0 blocks. --16381-- memcheck: sanity checks: 18 cheap, 1 expensive --16381-- memcheck: auxmaps: 0 auxmap entries (0k, 0M) in use --16381-- memcheck: auxmaps: 0 searches, 0 comparisons --16381-- memcheck: secondaries: 32 issued (2048k, 2M) --16381-- memcheck: secondaries: 54 accessible and distinguished (3456k, 3M) --16381-- tt/tc: 21,672 tt lookups requiring 23,013 probes --16381-- tt/tc: 21,672 fast-cache updates, 6 flushes --16381-- translate: new 8,107 (167,117 -> 2,985,525; ratio 178:10) [0 scs] --16381-- translate: dumped 0 (0 -> ??) --16381-- translate: discarded 607 (12,936 -> ??) --16381-- scheduler: 953,468 jumps (bb entries). --16381-- scheduler: 18/16,156 major/minor sched events. --16381-- sanity: 19 cheap, 1 expensive checks. --16381-- exectx: 30,011 lists, 457 contexts (avg 0 per list) --16381-- exectx: 2,248 searches, 1,793 full compares (797 per 1000) --16381-- exectx: 0 cmp2, 80 cmp4, 0 cmpAll --16390-- discard syms at 0x42DB000-0x42E6000 in /lib/libnss_files-2.3.4.so due to munmap() --16390-- discard syms at 0x4021000-0x4027000 in /lib/libnss_dns-2.3.4.so due to munmap() --16390-- discard syms at 0x42E6000-0x42F9000 in /lib/libresolv-2.3.4.so due to munmap() ==16390== ==16390== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 27 from 2) --16390-- --16390-- supp: 21 Ubuntu-stripped-ld.so --16390-- supp: 6 dl_relocate_object ==16390== malloc/free: in use at exit: 717,860 bytes in 1,271 blocks. ==16390== malloc/free: 1,763 allocs, 492 frees, 854,069 bytes allocated. ==16390== ==16390== searching for pointers to 1,271 not-freed blocks. ==16390== checked 1,890,140 bytes. ==16390== ==16390== LEAK SUMMARY: ==16390== definitely lost: 0 bytes in 0 blocks. ==16390== possibly lost: 3,192 bytes in 95 blocks. ==16390== still reachable: 714,668 bytes in 1,176 blocks. ==16390== suppressed: 0 bytes in 0 blocks. --16390-- memcheck: sanity checks: 19 cheap, 1 expensive --16390-- memcheck: auxmaps: 0 auxmap entries (0k, 0M) in use --16390-- memcheck: auxmaps: 0 searches, 0 comparisons --16390-- memcheck: secondaries: 32 issued (2048k, 2M) --16390-- memcheck: secondaries: 54 accessible and distinguished (3456k, 3M) --16390-- tt/tc: 21,688 tt lookups requiring 23,031 probes --16390-- tt/tc: 21,688 fast-cache updates, 6 flushes --16390-- translate: new 8,107 (167,117 -> 2,985,525; ratio 178:10) [0 scs] --16390-- translate: dumped 0 (0 -> ??) --16390-- translate: discarded 607 (12,936 -> ??) --16390-- scheduler: 957,174 jumps (bb entries). --16390-- scheduler: 19/16,217 major/minor sched events. --16390-- sanity: 20 cheap, 1 expensive checks. --16390-- exectx: 30,011 lists, 457 contexts (avg 0 per list) --16390-- exectx: 2,270 searches, 1,815 full compares (799 per 1000) --16390-- exectx: 0 cmp2, 80 cmp4, 0 cmpAll --16399-- discard syms at 0x42DB000-0x42E6000 in /lib/libnss_files-2.3.4.so due to munmap() --16399-- discard syms at 0x4021000-0x4027000 in /lib/libnss_dns-2.3.4.so due to munmap() --16399-- discard syms at 0x42E6000-0x42F9000 in /lib/libresolv-2.3.4.so due to munmap() ==16399== ==16399== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 27 from 2) --16399-- --16399-- supp: 21 Ubuntu-stripped-ld.so --16399-- supp: 6 dl_relocate_object ==16399== malloc/free: in use at exit: 717,860 bytes in 1,271 blocks. ==16399== malloc/free: 1,775 allocs, 504 frees, 871,448 bytes allocated. ==16399== ==16399== searching for pointers to 1,271 not-freed blocks. ==16399== checked 1,890,140 bytes. ==16399== ==16399== LEAK SUMMARY: ==16399== definitely lost: 0 bytes in 0 blocks. ==16399== possibly lost: 3,192 bytes in 95 blocks. ==16399== still reachable: 714,668 bytes in 1,176 blocks. ==16399== suppressed: 0 bytes in 0 blocks. --16399-- memcheck: sanity checks: 19 cheap, 1 expensive --16399-- memcheck: auxmaps: 0 auxmap entries (0k, 0M) in use --16399-- memcheck: auxmaps: 0 searches, 0 comparisons --16399-- memcheck: secondaries: 32 issued (2048k, 2M) --16399-- memcheck: secondaries: 54 accessible and distinguished (3456k, 3M) --16399-- tt/tc: 21,704 tt lookups requiring 23,049 probes --16399-- tt/tc: 21,704 fast-cache updates, 6 flushes --16399-- translate: new 8,107 (167,117 -> 2,985,525; ratio 178:10) [0 scs] --16399-- translate: dumped 0 (0 -> ??) --16399-- translate: discarded 607 (12,936 -> ??) --16399-- scheduler: 960,879 jumps (bb entries). --16399-- scheduler: 19/16,277 major/minor sched events. --16399-- sanity: 20 cheap, 1 expensive checks. --16399-- exectx: 30,011 lists, 457 contexts (avg 0 per list) --16399-- exectx: 2,292 searches, 1,837 full compares (801 per 1000) --16399-- exectx: 0 cmp2, 80 cmp4, 0 cmpAll --16408-- discard syms at 0x42DB000-0x42E6000 in /lib/libnss_files-2.3.4.so due to munmap() --16408-- discard syms at 0x4021000-0x4027000 in /lib/libnss_dns-2.3.4.so due to munmap() --16408-- discard syms at 0x42E6000-0x42F9000 in /lib/libresolv-2.3.4.so due to munmap() ==16408== ==16408== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 27 from 2) --16408-- --16408-- supp: 21 Ubuntu-stripped-ld.so --16408-- supp: 6 dl_relocate_object ==16408== malloc/free: in use at exit: 717,860 bytes in 1,271 blocks. ==16408== malloc/free: 1,787 allocs, 516 frees, 888,827 bytes allocated. ==16408== ==16408== searching for pointers to 1,271 not-freed blocks. ==16408== checked 1,890,140 bytes. ==16408== ==16408== LEAK SUMMARY: ==16408== definitely lost: 0 bytes in 0 blocks. ==16408== possibly lost: 3,192 bytes in 95 blocks. ==16408== still reachable: 714,668 bytes in 1,176 blocks. ==16408== suppressed: 0 bytes in 0 blocks. --16408-- memcheck: sanity checks: 19 cheap, 1 expensive --16408-- memcheck: auxmaps: 0 auxmap entries (0k, 0M) in use --16408-- memcheck: auxmaps: 0 searches, 0 comparisons --16408-- memcheck: secondaries: 32 issued (2048k, 2M) --16408-- memcheck: secondaries: 54 accessible and distinguished (3456k, 3M) --16408-- tt/tc: 21,720 tt lookups requiring 23,067 probes --16408-- tt/tc: 21,720 fast-cache updates, 6 flushes --16408-- translate: new 8,107 (167,117 -> 2,985,525; ratio 178:10) [0 scs] --16408-- translate: dumped 0 (0 -> ??) --16408-- translate: discarded 607 (12,936 -> ??) --16408-- scheduler: 964,585 jumps (bb entries). --16408-- scheduler: 19/16,337 major/minor sched events. --16408-- sanity: 20 cheap, 1 expensive checks. --16408-- exectx: 30,011 lists, 457 contexts (avg 0 per list) --16408-- exectx: 2,314 searches, 1,859 full compares (803 per 1000) --16408-- exectx: 0 cmp2, 80 cmp4, 0 cmpAll --16417-- discard syms at 0x42DB000-0x42E6000 in /lib/libnss_files-2.3.4.so due to munmap() --16417-- discard syms at 0x4021000-0x4027000 in /lib/libnss_dns-2.3.4.so due to munmap() --16417-- discard syms at 0x42E6000-0x42F9000 in /lib/libresolv-2.3.4.so due to munmap() ==16417== ==16417== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 27 from 2) --16417-- --16417-- supp: 21 Ubuntu-stripped-ld.so --16417-- supp: 6 dl_relocate_object ==16417== malloc/free: in use at exit: 717,860 bytes in 1,271 blocks. ==16417== malloc/free: 1,799 allocs, 528 frees, 906,206 bytes allocated. ==16417== ==16417== searching for pointers to 1,271 not-freed blocks. ==16417== checked 1,890,140 bytes. ==16417== ==16417== LEAK SUMMARY: ==16417== definitely lost: 0 bytes in 0 blocks. ==16417== possibly lost: 3,192 bytes in 95 blocks. ==16417== still reachable: 714,668 bytes in 1,176 blocks. ==16417== suppressed: 0 bytes in 0 blocks. --16417-- memcheck: sanity checks: 19 cheap, 1 expensive --16417-- memcheck: auxmaps: 0 auxmap entries (0k, 0M) in use --16417-- memcheck: auxmaps: 0 searches, 0 comparisons --16417-- memcheck: secondaries: 33 issued (2112k, 2M) --16417-- memcheck: secondaries: 54 accessible and distinguished (3456k, 3M) --16417-- tt/tc: 21,740 tt lookups requiring 23,091 probes --16417-- tt/tc: 21,740 fast-cache updates, 6 flushes --16417-- translate: new 8,107 (167,117 -> 2,985,525; ratio 178:10) [0 scs] --16417-- translate: dumped 0 (0 -> ??) --16417-- translate: discarded 607 (12,936 -> ??) --16417-- scheduler: 968,309 jumps (bb entries). --16417-- scheduler: 19/16,401 major/minor sched events. --16417-- sanity: 20 cheap, 1 expensive checks. --16417-- exectx: 30,011 lists, 457 contexts (avg 0 per list) --16417-- exectx: 2,336 searches, 1,881 full compares (805 per 1000) --16417-- exectx: 0 cmp2, 80 cmp4, 0 cmpAll --16426-- discard syms at 0x42DB000-0x42E6000 in /lib/libnss_files-2.3.4.so due to munmap() --16426-- discard syms at 0x4021000-0x4027000 in /lib/libnss_dns-2.3.4.so due to munmap() --16426-- discard syms at 0x42E6000-0x42F9000 in /lib/libresolv-2.3.4.so due to munmap() ==16426== ==16426== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 27 from 2) --16426-- --16426-- supp: 21 Ubuntu-stripped-ld.so --16426-- supp: 6 dl_relocate_object ==16426== malloc/free: in use at exit: 717,860 bytes in 1,271 blocks. ==16426== malloc/free: 1,811 allocs, 540 frees, 923,585 bytes allocated. ==16426== ==16426== searching for pointers to 1,271 not-freed blocks. ==16426== checked 1,890,140 bytes. ==16426== ==16426== LEAK SUMMARY: ==16426== definitely lost: 0 bytes in 0 blocks. ==16426== possibly lost: 3,192 bytes in 95 blocks. ==16426== still reachable: 714,668 bytes in 1,176 blocks. ==16426== suppressed: 0 bytes in 0 blocks. --16426-- memcheck: sanity checks: 19 cheap, 1 expensive --16426-- memcheck: auxmaps: 0 auxmap entries (0k, 0M) in use --16426-- memcheck: auxmaps: 0 searches, 0 comparisons --16426-- memcheck: secondaries: 33 issued (2112k, 2M) --16426-- memcheck: secondaries: 54 accessible and distinguished (3456k, 3M) --16426-- tt/tc: 21,758 tt lookups requiring 23,112 probes --16426-- tt/tc: 21,758 fast-cache updates, 6 flushes --16426-- translate: new 8,107 (167,117 -> 2,985,525; ratio 178:10) [0 scs] --16426-- translate: dumped 0 (0 -> ??) --16426-- translate: discarded 607 (12,936 -> ??) --16426-- scheduler: 972,024 jumps (bb entries). --16426-- scheduler: 19/16,463 major/minor sched events. --16426-- sanity: 20 cheap, 1 expensive checks. --16426-- exectx: 30,011 lists, 457 contexts (avg 0 per list) --16426-- exectx: 2,358 searches, 1,903 full compares (807 per 1000) --16426-- exectx: 0 cmp2, 80 cmp4, 0 cmpAll --16435-- discard syms at 0x42DB000-0x42E6000 in /lib/libnss_files-2.3.4.so due to munmap() --16435-- discard syms at 0x4021000-0x4027000 in /lib/libnss_dns-2.3.4.so due to munmap() --16435-- discard syms at 0x42E6000-0x42F9000 in /lib/libresolv-2.3.4.so due to munmap() ==16435== ==16435== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 27 from 2) --16435-- --16435-- supp: 21 Ubuntu-stripped-ld.so --16435-- supp: 6 dl_relocate_object ==16435== malloc/free: in use at exit: 717,860 bytes in 1,271 blocks. ==16435== malloc/free: 1,823 allocs, 552 frees, 940,964 bytes allocated. ==16435== ==16435== searching for pointers to 1,271 not-freed blocks. ==16435== checked 1,890,140 bytes. ==16435== ==16435== LEAK SUMMARY: ==16435== definitely lost: 0 bytes in 0 blocks. ==16435== possibly lost: 3,192 bytes in 95 blocks. ==16435== still reachable: 714,668 bytes in 1,176 blocks. ==16435== suppressed: 0 bytes in 0 blocks. --16435-- memcheck: sanity checks: 19 cheap, 1 expensive --16435-- memcheck: auxmaps: 0 auxmap entries (0k, 0M) in use --16435-- memcheck: auxmaps: 0 searches, 0 comparisons --16435-- memcheck: secondaries: 33 issued (2112k, 2M) --16435-- memcheck: secondaries: 54 accessible and distinguished (3456k, 3M) --16435-- tt/tc: 21,774 tt lookups requiring 23,130 probes --16435-- tt/tc: 21,774 fast-cache updates, 6 flushes --16435-- translate: new 8,107 (167,117 -> 2,985,525; ratio 178:10) [0 scs] --16435-- translate: dumped 0 (0 -> ??) --16435-- translate: discarded 607 (12,936 -> ??) --16435-- scheduler: 975,730 jumps (bb entries). --16435-- scheduler: 19/16,523 major/minor sched events. --16435-- sanity: 20 cheap, 1 expensive checks. --16435-- exectx: 30,011 lists, 457 contexts (avg 0 per list) --16435-- exectx: 2,380 searches, 1,925 full compares (808 per 1000) --16435-- exectx: 0 cmp2, 80 cmp4, 0 cmpAll --16330-- discard syms at 0x42DB000-0x42E6000 in /lib/libnss_files-2.3.4.so due to munmap() --16330-- discard syms at 0x4021000-0x4027000 in /lib/libnss_dns-2.3.4.so due to munmap() --16330-- discard syms at 0x42E6000-0x42F9000 in /lib/libresolv-2.3.4.so due to munmap() ==16330== ==16330== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 27 from 2) --16330-- --16330-- supp: 21 Ubuntu-stripped-ld.so --16330-- supp: 6 dl_relocate_object ==16330== malloc/free: in use at exit: 717,860 bytes in 1,271 blocks. ==16330== malloc/free: 1,841 allocs, 570 frees, 967,026 bytes allocated. ==16330== ==16330== searching for pointers to 1,271 not-freed blocks. ==16330== checked 1,890,160 bytes. ==16330== ==16330== LEAK SUMMARY: ==16330== definitely lost: 0 bytes in 0 blocks. ==16330== possibly lost: 3,192 bytes in 95 blocks. ==16330== still reachable: 714,668 bytes in 1,176 blocks. ==16330== suppressed: 0 bytes in 0 blocks. --16330-- memcheck: sanity checks: 19 cheap, 1 expensive --16330-- memcheck: auxmaps: 0 auxmap entries (0k, 0M) in use --16330-- memcheck: auxmaps: 0 searches, 0 comparisons --16330-- memcheck: secondaries: 33 issued (2112k, 2M) --16330-- memcheck: secondaries: 54 accessible and distinguished (3456k, 3M) --16330-- tt/tc: 21,966 tt lookups requiring 23,344 probes --16330-- tt/tc: 21,966 fast-cache updates, 6 flushes --16330-- translate: new 8,234 (169,487 -> 3,024,912; ratio 178:10) [0 scs] --16330-- translate: dumped 0 (0 -> ??) --16330-- translate: discarded 607 (12,936 -> ??) --16330-- scheduler: 982,674 jumps (bb entries). --16330-- scheduler: 19/16,642 major/minor sched events. --16330-- sanity: 20 cheap, 1 expensive checks. --16330-- exectx: 30,011 lists, 468 contexts (avg 0 per list) --16330-- exectx: 2,413 searches, 1,947 full compares (806 per 1000) --16330-- exectx: 0 cmp2, 80 cmp4, 0 cmpAll -----Original Message----- From: Henrik Nordstrom [mailto:henrik@xxxxxxxxxxxxxxxxxxx] Sent: Friday, April 27, 2007 5:37 PM To: Anton Golubev Cc: squid-users@xxxxxxxxxxxxxxx Subject: Re: squid crashes rapidly with glibc errors fre 2007-04-27 klockan 15:46 +0400 skrev Anton Golubev: > Hello squid users, > > I'm trying to figure out, why usually quite stable squid started to > crash rapidly on newly installed server with CentOS 4.4. Time to crash > is up to several seconds, then moderate requests load is applied. > Relevant log records are following: > > 2007/04/25 17:42:54| Validated 10907 Entries > 2007/04/25 17:42:54| store_swap_size = 107484k > 2007/04/25 17:42:54| storeLateRelease: released 0 objects > *** glibc detected *** corrupted double-linked list: 0x0a378818 *** Ugh.. something stomped on anothers memory. Can you try if this problem can be trapped in more detail using valgrind? Install valgrind and valgrind-devel Rebuild Squid with the --with-valgrind option Start Squid using valgrind and try making it crash (or at least get ugly warnings from valgrind). Squid will run a bit slower, so some patience may be needed. Regards Henrik
Attachment:
smime.p7s
Description: S/MIME cryptographic signature
