Linux-kernel mailing list archive 1998-31,: Re: is this fs corruption?

# Re: is this fs corruption?

Theodore Y. Ts'o (tytso@MIT.EDU)
Wed, 5 Aug 1998 19:01:34 -0400

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Date: Wed, 5 Aug 1998 14:37:18 +0200 (CEST)
From: Andrea Arcangeli <arcangeli@mbox.queen.it>

Is this a sing of fs corrution? Now I have disabled DMA on my trusted
hardware and I' ll see what fsck will report the next week.

Well, I can't say for sure, since it's theoretically possible this was
caused by a hardware failure or a weird kernel bug. However, the fsck
messages are more indicative of a filesystem which wasn't cleanly
unmounted before a shutdown, or possibly one caused by the bug caused by
the Debian upgrade which replaces shared libraries and then reboots.
Since /etc/init still has a pointer to the old (and now deleted) shared
library, the space can't be reclaimed, so the filesystem can't be
cleanly unmounted.

I believe newer versions of /etc/init can be sent a signal asking it to
re-exec itself, thus clearing this condition. In any cases, if thse
were all the e2fsck messages you saw, they were all pretty harmless in
that they wouldn't cause any data loss.

- Ted

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