Hi, My server always crash and reboot when I start MySQLs which stores the data on NILFS2 filesystem. I found some vmcore, but they are so big and I don't know how to extract useful information from them. ~]# ll -h /var/crash/*/* -rw------- 1 root root 141M Dec 20 16:14 /var/crash/127.0.0.1-2012-12-20-16:14:03/vmcore -rw------- 1 root root 512M Jan 4 16:00 /var/crash/127.0.0.1-2013-01-04-15:59:20/vmcore -rw------- 1 root root 92M Jan 4 16:25 /var/crash/127.0.0.1-2013-01-04-16:25:35/vmcore -rw------- 1 root root 62M Jan 4 16:50 /var/crash/127.0.0.1-2013-01-04-16:50:02/vmcore -rw------- 1 root root 63M Jan 4 18:55 /var/crash/127.0.0.1-2013-01-04-18:55:43/vmcore -rw------- 1 root root 80M Jan 5 14:55 /var/crash/127.0.0.1-2013-01-05-14:55:15/vmcore -rw------- 1 root root 65M Jan 5 15:30 /var/crash/127.0.0.1-2013-01-05-15:30:35/vmcore -rw------- 1 root root 199M Jan 6 15:06 /var/crash/127.0.0.1-2013-01-06-15:06:19/vmcore And below is some snapshot of the screen, hope it's useful: http://d.pr/i/4OZR http://d.pr/i/10M3 http://d.pr/i/HnJn http://d.pr/i/HW6t My environment: kernel: 2.6.32-220.13.1.el6.x86_64 kmod-nilfs2-0.4.3-1.el6.x86_64 nilfs-utils-2.1.4-7.x86_64 Raid: raid10 with SEAGATE ST32000444SS(2TB) * 12 mount: /dev/sdb2 on /data0 type nilfs2 (rw,noatime,gcpid=9047) ~]# nilfs-tune -l /dev/sdb2 nilfs-tune 2.1.4 Filesystem volume name: (none) Filesystem UUID: dcfb7152-a342-48d0-a712-212a3062395e Filesystem magic number: 0x3434 Filesystem revision #: 2.0 Filesystem features: (none) Filesystem state: invalid or mounted,error Filesystem OS type: Linux Block size: 4096 Filesystem created: Mon Dec 3 13:56:51 2012 Last mount time: Sun Jan 6 15:41:34 2013 Last write time: Sun Jan 6 15:41:34 2013 Mount count: 25 Maximum mount count: 50 Reserve blocks uid: 0 (user root) Reserve blocks gid: 0 (group root) First inode: 11 Inode size: 128 DAT entry size: 32 Checkpoint size: 192 Segment usage size: 16 Number of segments: 1246464 Device size: 10456104173568 First data block: 1 # of blocks per segment: 2048 Reserved segments %: 5 Last checkpoint #: 6327388 Last block address: 256856089 Last sequence #: 3862375 Free blocks count: 598300672 Commit interval: 60 # of blks to create seg: 0 CRC seed: 0x3adfb6c3 CRC check sum: 0xca2168f3 CRC check data size: 0x00000118 Thanks --- Elmer Zhang -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
