Re: data loss in 2.6.9-rc1-mm1

[Fabio Coatti <cova@ferrara.linux.it>]

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Alle 13:05, venerdì 27 agosto 2004, Anton Altaparmakov ha scritto:

>
> The difference is exactly 4096 bytes, i.e. 1 whole page.  Seems like an
> off-by-one error somewhere in the file access or page cache code.
>
> It would be interesting to know whether the read is truncated or whether
> the write is truncated.  

I can confirm very bad behaviour on my machine running 2.6.9-rc1-mm1

I've noticed curruption of rpm database, (symptom: error: db4 error(-30989) 
from dbcursor->c_get: DB_PAGE_NOTFOUND: Requested page not found )

So I've tried to rebuild the database, failing with the same error.

I've completely wiped out the database direcory, copied another one from a 
similar machine (just for testing). Now under 2.6.7-mm7 all database is read 
just fine, but under 2.6.9-rc1-mm1 i get the same error DB_PAGE_NOTFOUND, so 
I suspect read error.
If I try to tar the archive, I get several errors, i.e.:
tar: /var/lib/rpm/Packages: File shrank by 4096 bytes; padding with zeros
(2.6.9-rc1-mm1)


Filesystem: jfs
system: P IV 1.70 
Attached you can find my config file for 2.6.9-rc1-mm1.

I can make tests if needed.

-- 
Fabio "Cova" Coatti    http://members.ferrara.linux.it/cova     
Ferrara Linux Users Group           http://ferrara.linux.it
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Old SysOps never die... they simply forget their password.

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