Re: severe FS corruption w/ reiserfs and 2.5.72-bk3

[Joern Nettingsmeier]

hello oleg !

thanks for your quick reply!

Oleg Drokin wrote:
> Joern Nettingsmeier <[e-mail]> wrote:
> 
> JN> i just completely and utterly trashed my filesystems with 2.5.72-bk2 and 
> JN> reiserfs. there are metric shitloads of errors on journal replay and i 
> JN> end up in repair mode. did a couple of --rebuild-tree's, but new errors 
> JN> cropped up after every reboot.
> JN> happens both on scsi and ide drives and ate almost all of my machine...
> 
> Hm. Can I ask for your kernel config, and kernel logs (if possible),
> reiserfsck /dev/device -l /somewhere/device.log , and send those logs to
> me too.

sorry, i can't really get anything in and out of that box.
i've been able to extract some parts of the fsck log, they look like this:

vpf-10680: The file [2406 26400] has the wrong block count in the 
StatData (8), should be (1)
vpf-10680: The file [2406 49744] has the wrong block count in the 
StatData (8), should be (1)
vpf-10680: The file [2406 30103] has the wrong block count in the 
StatData (8), should be (1)
vpf-10680: The file [2406 47443] has the wrong block count in the 
StatData (8), should be (1)
vpf-10680: The file [2406 55026] has the wrong block count in the 
StatData (8), should be (1)
vpf-10680: The file [2406 28681] has the wrong block count in the 
StatData (8), should be (1)
vpf-10680: The file [2406 21611] has the wrong block count in the 
StatData (8), should be (1)
vpf-10680: The file [2406 21610] has the wrong block count in the 
StatData (8), should be (1)
vpf-10680: The file [10 33567] has the wrong block count in the StatData 
(8), should be (1)
vpf-10680: The file [10 33568] has the wrong block count in the StatData 
(8), should be (1)

it tells me it can fix it with the --fixable option, done that a couple 
of times, new errors after that.

i can't send you my kernel config, because the kernel tree was one of 
the first things that got eaten.... the entire tree ended up in 
lost+found all in pieces. unfortunately i deleted it. :(

it's an smp box with 2 p3s, intel bx chipset, aic7xxx scsi, ide and scsi 
compiled into the kernel, reiserfs too. tagged queuing enabled, ignore 
word validation bits enabled, use dma by default enabled. it has 3 scsi 
discs, 2 of which are striped, and one ide which has one huge partition 
of 175G. the scsi discs are 4, 9 and 9 gig.
no atapi devices, only a scsi cdrom and a burner.

the box is so f&%$ed up, when i try to cat a logfile i get:
vpf-10640: the on-disk and the correct bitmaps differs.
nothing else.
:(

> JN> unfortunately i did a number of things at once: upgrade the kernel from 
> JN> .72 (which has worked for me quite well), add an ide drive (i didn't 
> JN> have ide in my kernel before, and geez! is that module code broken :)) 
> JN> and shuffle partitions around. which makes the problem hard to pinpoint.
> 
> Not sure what bk3 is for, I have yesterday's bk snapshot and it works for me,
> I seem to be unable to reach bkbits.net for today.
> 
> JN> if anyone wants me to do some forensics on the machine, speak up. 
> JN> otherwise i'll swipe it clean and start over from scratch.
> 
> I wonder if you can create clean fs, copy some stuff there with 2.5.72-mm2
> and see what happens?

/var is totally FUBAR, the system won't boot into my fallback kernel. i 
don't have a second machine around to compile another kernel on... sorry.

i might be able to put the ide disk into another box tomorrow and try 
another reiserfsck with proper logging, but i have no place to check the 
scsi disks. i'll keep you posted when i get it done.

best,

jörn

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Jörn Nettingsmeier
Kurfürstenstr 49, 45138 Essen, Germany
http://spunk.dnsalias.org (my server)
http://www.linuxdj.com/audio/lad/ (Linux Audio Developers)