Re: Strange errors with 2.4.22 patches (from Chris) and bonnie++

[Hans Reiser <reiser@namesys.com>]

Jens Benecke wrote:

>Hi,
>
>I applied the 2.4.22 patches from Chris Mason's SuSE FTP directory for data
>logging etc:
>
>available at 
>http://mirrors.mathematik.uni-bielefeld.de/pub/linux/suse/people/mason
>patches/data-logging/2.4.22/ or
>mirror.mcs.anl.gov/suse-people/mason/patches/data-logging/2.4.22/
>
>root         3109 Jul 11 21:10 02-akpm-b_journal_head-1.diff
>root        17133 Jul 11 21:10 04-reiserfs-sync_fs-4.diff
>root       155659 Jul 11 21:09 05-data-logging-39.diff
>root          650 Jul 11 21:10 06-write_times.diff
>root        41276 Jul 11 21:09 07-reiserfs-quota-28.diff
>root         3275 Jul 11 21:15 08-kinoded-9.diff
>root         2653 Jul 11 21:10 10-reiserfs-quota-link-fix.diff
>root          898 Oct 10 12:25 README
>
>This system is running 2.4.22-kernel from Debian (stable) with the
>GRsecurity 1.9.12 patch, on P4 optimization and no other patches, except
>for the above.
>
>
>Two problems appeared with the above patches:
>
>a) Synchronizing with drbd (www.drbd.org) shared devices slowed down to 
>   a crawl. I guess this might have something to do with the way drbd
>   inserts itself between block device and file system and the changed
>   sync behavoiur.
>   Sync rates were >5000k/s before and <500k/s after I patched.
>
>b) bonnie++ on a (previously created) reiserfs partition (with 
>   mkreiserfs 3.6.6) exited with random "disk full" errors, although 
>   the disk was never full. This didn't happen before.
>
>
>Details:
>
>  
>
>>bonnie++ -d . -s 2048 -m master1 -r 1024 -x 2 -u nobody:nogroup
>>    
>>
>
>Now bonnie++ exits randomly with "no space left on device" when 'df' clearly
>shows there is ample space left:
>
>Writing with putc()...  
>Writing intelligently...
>Can't write block.
>Bonnie: drastic I/O error (write(2)): No space left on device
>
>-rw-------    1 nobody   nogroup  474931200 Nov 28 22:04 Bonnie.19345.000
>-rw-------    1 nobody   nogroup         0 Nov 28 22:04 Bonnie.19345.001
>
>Dateisystem          1k-Blöcke    Benutzt Verfügbar Ben% montiert auf
>/dev/ide/host0/bus0/target0/lun0/part7
>                       3044184    945424   2098760  32% /var
>
>
>This did not happen before I applied the patches.
>To be honest, I don't know how to debug this.
>
>There is nothing in the syslog and nothing via 'dmesg' related to drbd or
>reiserfs.
>
>
>I would appreciate any help.
>Thank you! :-)
>
>
>  
>
there may be a holiday related delay in Chris's response, don't 
interpret it as a lack of interest....

-- 
Hans