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MX700 kernel: loop: Write error

daniele.monni1
Level 1
Level 1

‎04-26-2017 09:45 AM - edited ‎03-18-2019 01:03 PM

Hello,

One of my mx700s during the call does not receive or send more audio even if it is not lost.

In log peripherals.log I found this error repeated

2017-04-26T15:45:44.147+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: loop: Write error at byte offset 8457216, length 1024.

2017-04-26T15:45:44.147+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: Buffer I/O error on device loop3, logical block 8259

2017-04-26T15:45:44.187+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: lost page write due to I/O error on loop3

2017-04-26T15:45:44.187+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: loop: Write error at byte offset 8460288, length 1024.

2017-04-26T15:45:44.187+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: Buffer I/O error on device loop3, logical block 8262

2017-04-26T15:45:44.187+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: lost page write due to I/O error on loop3

2017-04-26T15:45:44.187+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: IO error syncing ext2 inode [loop3:00000812]

2017-04-26T15:45:44.237+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: EXT2-fs (loop3): previous I/O error to superblock detected

2017-04-26T15:45:44.237+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel:

2017-04-26T15:45:44.237+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: loop: Write error at byte offset 1024, length 1024.

2017-04-26T15:45:44.237+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: Buffer I/O error on device loop3, logical block 1

2017-04-26T15:45:44.237+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: lost page write due to I/O error on loop3

2017-04-26T15:45:44.237+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: EXT2-fs (loop3): error: ext2_free_inode: bit already cleared for inode 2066

2017-04-26T15:45:44.266+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: loop: Write error at byte offset 8457216, length 1024.

2017-04-26T15:45:44.266+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: Buffer I/O error on device loop3, logical block 8259

2017-04-26T15:45:44.266+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: lost page write due to I/O error on loop3

2017-04-26T15:45:44.000+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 ntpd[2554]: frequency file /config/ntp/drift.TEMP: Input/output error

2017-04-26T15:45:49.157+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: loop: Write error at byte offset 2048, length 1024.

2017-04-26T15:45:49.157+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: Buffer I/O error on device loop3, logical block 2

2017-04-26T15:45:49.172+00:00 SalaPresidenteLitta E4:AA:5D:A2:53:C1 kernel: lost page write due to I/O error on loop3

Do you think a firmware recovery can be useful or is there any other problem?

Has anyone ever happened?
Regards
Daniele
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Elias Sevilla Duarte
Cisco Employee
Cisco Employee

‎04-27-2017 06:40 PM

From the logs, the issue seem to be memory related.

Try upgrading the software, it will most likely resolve the issue. It is also worth to try a factory reset.

If the above suggestion does not resolve the issue, I would suggest opening a TAC case, as they may have a fix for that.

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