We have one server became readonly after update DMX.

Error logs:

Buffer I/O error on device dm-1, logical block 1545

lost page write due to I/O error on dm-1

ext3_abort called.

EXT3-fs error (device dm-1): ext3_journal_start_sb: Detected aborted journal

Remounting filesystem read-only

qla2xxx 0000:0d:00.0: scsi(0:0:0): Abort command issued — 1 11299f0 2002.

qla2xxx 0000:0d:00.1: scsi(1:0:0): Abort command issued — 1 113a04c 2002.

……

qla2xxx 0000:0d:00.0: Unable to read SFP data (102/a0/0).

process `sysctl’ is using deprecated sysctl (syscall) net.ipv6.neigh.eth3.base_reachable_time; Use net.ipv6.neigh.eth3.base_reachable_time_ms instead.

ext3_abort called.

EXT3-fs error (device dm-1): ext3_remount: Abort forced by user

ext3_abort called.

mount -o remount,rw /apps

mount: block device /dev/mapper/xxxx is write-protected, mounting read-only

Solution: reboot the server, all fixed 🙁