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Fighting massive data loss bugsFighting massive data loss bugsPosted Jul 23, 2009 22:56 UTC (Thu) by dlang (✭ supporter ✭, #313)In reply to: Fighting massive data loss bugs by Cato Parent article: Fighting small bugs
is /var a separate mount? if so it should keep going even if / gets remounted ro
if the underlying device becomes ro, the OS can buffer writes in ram that it wants to get to the filesystem, but can't because it's ro.
this causes more lost data, but not more corruption.
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Fighting massive data loss bugs Posted Jul 23, 2009 23:27 UTC (Thu) by Cato (subscriber, #7643) [Link]
In this case there was no separate /var FS, and the updates to /var/log/messages have persisted across at least one reboot. So somehow the root FS was mounted readonly (I got errors on trying to write to files so it really was readonly), yet the log files were being updated on /var ...
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