Re: ext2_free_blocks (fwd)

From: Pavel Machek (pavel@suse.cz)
Date: Tue Jan 18 2000 - 18:07:16 EST


Hi!

> > > I ran fsck -f /dev/sda3 but it
> > >didn't find any errors.
> > [...]
> > >Jan 10 02:33:36 eric kernel: EXT2-fs error (device sd(8,3)): A
> > >ext2_free_blocks: Freeing blocks not in datazone - block = 1918987635,
> > >count = 1
> >
> > That means somebody tried to mark a metadata block as free. ext2 prevents
> > this and printk a warning. It means some severe fs corruption is going on.
> >
>
> I receive a similar bug report a few weeks ago:
>
> * kernel 2.2.13, 108 GB md disk array, probably scsi
>
> * ext2 error messages about broken directory entries.
> > Oct 21 23:13:04 news2 kernel: EXT2-fs error (device md(9,3)):
> > ext2_add_entry: bad entry in directory #10022921: directory entry across
> > blocks - offset=7152, inode=843004500, rec_len=17248, name_len=45
>
> * debugfs and fsck said that the directory is ok, ie. we had a data
> corruption during read, the disk was ok.

Maybe it is time for crc loop device? I have it written, but userland
tools are missing.
                                                                Pavel

-- 
I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care."
Panos Katsaloulis describing me w.r.t. patents me at discuss@linmodems.org

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