Opened 4 years ago

Last modified 42 hours ago

#16830 new enhancement

BFS Needs to be more Robust on Corrupted Disks

Reported by: AGMS Owned by: axeld
Priority: normal Milestone: Unscheduled
Component: File Systems/BFS Version: R1/beta2
Keywords: Cc: agmsmith@…
Blocked By: Blocking:
Platform: All

Description

Often when encountering corrupted data on disk, BFS will do a kernel panic on some virtual memory page in the cache. It would be nicer if it could recover from that sort of error or test for page validity before the VM tries to access it.

Many times checkfs doesn't fix it and thus a reformat is the most reliable way to make it go away.

Attachments (1)

CorruptBFSWriteVMPanic20210305.jpeg​ (331.4 KB ) - added by AGMS 4 years ago.
A kernel panic on a corrupted disk while an innocent program tries to write to a log file.

Download all attachments as: .zip

Change History (2)

by AGMS, 4 years ago

Attachment: CorruptBFSWriteVMPanic20210305.jpeg​ added

A kernel panic on a corrupted disk while an innocent program tries to write to a log file.

comment:1 by waddlesplash, 42 hours ago

Keywords: robust removed

Any reliable way of reproducing this? I can't recall seeing it.

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