We have a Mail Server (CentOS 6.5) with these component:
- Postfix
- Dovecot
- Mysql
- MailScanner (spamassassin,clamav)
- GFS2 Partition
Last night the server crashed and this is the kernel logs before that:
May 11 01:07:01 mail1 kernel: original: gfs2_fallocate+0xdc/0x540 [gfs2]
May 11 01:07:01 mail1 kernel: pid: 24608
May 11 01:07:01 mail1 kernel: lock type: 2 req lock state : 1
May 11 01:07:01 mail1 kernel: new: gfs2_fallocate+0xdc/0x540 [gfs2]
May 11 01:07:01 mail1 kernel: pid: 24608
May 11 01:07:01 mail1 kernel: lock type: 2 req lock state : 1
May 11 01:07:01 mail1 kernel: G: s:EX n:2/28b165f5 f:yfIqob t:EX d:EX/0 a:1 v:0 r:4 m:200
May 11 01:07:01 mail1 kernel: H: s:EX f:W e:0 p:24608 [imap] gfs2_fallocate+0xdc/0x540 [gfs2]
May 11 01:07:01 mail1 kernel: H: s:EX f:W e:0 p:24608 [imap] gfs2_fallocate+0xdc/0x540 [gfs2]
May 11 01:07:01 mail1 kernel: H: s:EX f:W e:0 p:24608 [imap] gfs2_fallocate+0xdc/0x540 [gfs2]
May 11 01:07:01 mail1 kernel: H: s:EX f:W e:0 p:24608 [imap] gfs2_fallocate+0xdc/0x540 [gfs2]
May 11 01:07:01 mail1 kernel: H: s:EX f:W e:0 p:24608 [imap] gfs2_fallocate+0xdc/0x540 [gfs2]
May 11 01:07:01 mail1 kernel: H: s:EX f:W e:0 p:24608 [imap] gfs2_fallocate+0xdc/0x540 [gfs2]
May 11 01:07:01 mail1 kernel: H: s:EX f:W e:0 p:24608 [imap] gfs2_fallocate+0xdc/0x540 [gfs2]
I found these solutions in this post titled: /var/log/messages shows lines like "H: s:EX f:W e:0 p:19456 [imap] gfs2_fallocate+0xdc/0x540 [gfs2]" repeated many times and GFS2 file system becomes inaccessible in RHEL 6 but we're not a Red Hat subscriber.
In the Dovecot logs I found the message:
MySQL server has gone away
NOTE: Presently the MySQL data is stored on that GFS2 partition.
Does anyone have any ideas on how to resolve this problem?
