From: desmond@squish.Berkeley.EDU (Desmond A. Kirkpatrick) Subject: Re: EXT FS free-list / df BUG Date: 24 Feb 1993 15:53:00
In article <1mfe0kINN4c4@escargot.xx.rmit.OZ.AU> rcopg@minyos.xx.rmit.OZ.AU (Paul Gortmaker) writes:
desmond@ic.Berkeley.EDU (Desmond A. Kirkpatrick) writes:
>A few others have mentioned file system problems in the context of
>ethernet cards. I saw 'shrinking' filesystems even before I got my
>ethernet card. I think there is still a bug in either EXTFS free list
>management or else df.
more [...stuff deleted]
Perhaps your problem is one of the documented bugs in extfs. In the
man page for extfs, it says (under the BUGS section) that:
"When a mounted filesystem is checked, superblock information are modified
on the disk and not in the memory copy."
I ran efsck from another partition, while the one in question was
unmounted, and all was well. (ie. it fixed the errors from a kernel panic)
Regards,
Paul.
Thanks Paul. Yep, you're right. But ...Been there, Done that. Found
that out with some experiments on /tmp the next day (I think the BUGS
section should be updated with your comment - took me awhile to try
'umount' when I was also seeing the problems on my root disk!). And
what about ROOT. Kind of a problem.
I think the fact that I could demonstrate free-block lossage with 'rm
*' (ie, I shouldn't have to run efsck to keep my free list intact) is
still an undocumented bug. :(
I want to move to ext2 or xiafs: do you know if either of these have
problems with:
1) free block lossage
2) the above mounted fsck bug
3) the logical partition (SCSI?) fdisk bug mentioned in recent news
(extra sectors are needed to store file table info between
partitions and I can't figure out how many - so I can have
only 4 partitions)
With all the flames about fs' and speed, I don't want to add to them.
In fact, speed, smeed. I just want to keep my files.
Desmond Kirkpatrick
P.S.: wow, my first post to comp.os.linux and I get a response from
'down-under' :) !!