I/O errors

Posted on May 28, 2013

My Ubuntu 12.10 instance failed with the following errors. According to DO support, it is an issue with my VM, not the host. Did anyone else experience this? I think it is a bit dodgy, as it was quite a vanilla install running almost idle (apart from a single “wget” cronjob once an hour).

At the moment I am running fio tests to see whether I can recreate the issue (according to this thread; https://bugzilla.redhat.com/show_bug.cgi?id=549981 )

[1544221.948170] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [1544221.948528] ata1.00: failed command: WRITE DMA [1544221.948742] ata1.00: cmd ca/00:08:48:6b:47/00:00:00:00:00/e1 tag 0 dma 4096 out [1544221.948742] res 40/00:01:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout) [1544221.949336] ata1.00: status: { DRDY } [1544221.949736] ata1: soft resetting link [1544222.108664] ata1.01: NODEV after polling detection [1544222.109957] ata1.00: configured for MWDMA2 [1544222.109964] ata1.00: device reported invalid CHS sector 0 [1544222.109998] sd 0:0:0:0: >[sda] [1544222.110007] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [1544222.110011] sd 0:0:0:0: >[sda] [1544222.110016] Sense Key : Aborted Command [current] [descriptor] [1544222.110020] Descriptor sense data with sense descriptors (in hex): [1544222.110022] 72 0b 00 00 00 00 00 0c 00 0a 80 00 00 00 00 00 [1544222.110035] 00 00 00 00 [1544222.110040] sd 0:0:0:0: >[sda] [1544222.110042] Add. Sense: No additional sense information [1544222.110045] sd 0:0:0:0: >[sda] CDB: [1544222.110046] Write(10): 2a 00 01 47 6b 48 00 00 08 00 [1544222.110058] end_request: I/O error, dev sda, sector 21457736 [1544222.110309] end_request: I/O error, dev sda, sector 21457736 [1544222.110553] ata1: EH complete [1544222.110575] Aborting journal on device sda-8. [1544222.122581] EXT4-fs error (device sda): ext4_journal_start_sb:370: Detected aborted journal [1544222.122895] EXT4-fs (sda): Remounting filesystem read-only [1630835.680044] EXT4-fs (sda): error count: 2 [1630835.680049] EXT4-fs (sda): initial error at 1369663750: ext4_journal_start_sb:370 [1630835.680052] EXT4-fs (sda): last error at 1369663750: ext4_journal_start_sb:370

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Moisey Uretsky

May 29, 2013

If you have a ticket # I can look into it further for you and see if there are any other possible issues that may have caused a problem. <br> <br>Thanks