경준 이메모리 error로 인한 segfault at error 발생
- dmesg 명령어로 서버내의 segfault at error 발견
| [30009.654008] apt-get[31895]: segfault at 7f585cf28314 ip 00007f585ae8bd8b sp 00007ffdc9d50a90 error 4 in libapt-pkg.so.5.0.2[7f585ad30000+1b6000] [40647.542719] apt-cache[9879]: segfault at 7f8099b98314 ip 00007f8097afbd8b sp 00007fff0f7d3ad0 error 4 in libapt-pkg.so.5.0.2[7f80979a0000+1b6000] [42352.282258] apt-get[11551]: segfault at 7f39b97f8314 ip 00007f39b775bd8b sp 00007ffe1a2b5490 error 4 in libapt-pkg.so.5.0.2[7f39b7600000+1b6000] [77873.490677] apt-get[13432]: segfault at 7f686ecf0314 ip 00007f686cc53d8b sp 00007ffdcac3a4c0 error 4 in libapt-pkg.so.5.0.2[7f686caf8000+1b6000] [89321.553935] apt-get[24476]: segfault at 7ff774080314 ip 00007ff771fe3d8b sp 00007ffcf6425aa0 error 4 in libapt-pkg.so.5.0.2[7ff771e88000+1b6000] [125689.025428] apt-get[30691]: segfault at 7fae95190314 ip 00007fae930f3d8b sp 00007ffebf858e30 error 4 in libapt-pkg.so.5.0.2[7fae92f98000+1b6000] [127049.338847] apt-cache[32118]: segfault at 7f97c43e0314 ip 00007f97c2343d8b sp 00007ffd2acfc1c0 error 4 in libapt-pkg.so.5.0.2[7f97c21e8000+1b6000] [128369.878889] check-new-relea[948]: segfault at 7f310971d1a0 ip 00007f310be9c09f sp 00007ffc137b2990 error 4 in libapt-pkg.so.5.0.2[7f310bd40000+1b6000] [165536.388113] apt-get[4491]: segfault at 7fda6b830314 ip 00007fda69793d8b sp 00007ffef45c9bf0 error 4 in libapt-pkg.so.5.0.2[7fda69638000+1b6000] [185062.869293] apt-get[23314]: segfault at 7f49e2100314 ip 00007f49e0063d8b sp 00007ffc271a4590 error 4 in libapt-pkg.so.5.0.2[7f49dff08000+1b6000] [213452.406715] apt-cache[18404]: segfault at 7f812b1e0314 ip 00007f8129143d8b sp 00007ffc680efa10 error 4 in libapt-pkg.so.5.0.2[7f8128fe8000+1b6000] [213897.928483] apt-get[18871]: segfault at 7f356d2d8314 ip 00007f356b23bd8b sp 00007ffd09ae5140 error 4 in libapt-pkg.so.5.0.2[7f356b0e0000+1b6000] [238879.316846] check-new-relea[10717]: segfault at 7ff813440314 ip 00007ff81185bd8b sp 00007ffe80ac28f0 error 4 in libapt-pkg.so.5.0.2[7ff811700000+1b6000] |
- 의심되는 메모리 테스트 진행 ( memory test 선택 )
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- 10분 정도 memtest를 진행합니다. (해당 서버는 error가 많이 검출되어서 40분 진행)
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-> 해당 메모리 테스트는 패키지를 통해서 설치가능합니다. [centos -> yum install memtest86+, ubuntu -> apt install memtest86+ 명령어로 설치가능합니다.]
- 문제 되는 메모리 교체 후 memtest 다시 진행
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-> 메모리 교체후 error 검출되지 않음