* Re: Something is broken with SATA RAID ?
[not found] <1109810381l.5754l.0l@werewolf.able.es>
@ 2005-03-03 5:03 ` Brad Campbell
0 siblings, 0 replies; only message in thread
From: Brad Campbell @ 2005-03-03 5:03 UTC (permalink / raw)
To: J.A. Magallon; +Cc: Lista Linux-Kernel, RAID Linux
J.A. Magallon wrote:
> Hi...
>
> I posted this in other mail, but now I can confirm this.
>
> I have a box with a SATA RAID-5, and with 2.6.11-rc3-mm2+libata-dev1
> works like a charm as a samba server, I dropped it 12Gb from an
> osx client, and people does backups from W2k boxes and everything was fine.
> With 2.6.11-rc4-mm1, it hangs shortly after the mac starts copying
> files. No oops, no messages... It even hanged on a local copy (wget),
> so I will discard samba as the buggy piece in the puzzle.
>
> I'm going to make a definitive test with rc5-mm1 vs rc5-mm1+libata-dev1.
> I already know that plain rc5-mm1 hangs. I have to wait the md reconstruction
> of the 1.2 TB to check rc5-mm1+libata (and no user putting things there...)
>
> But, anyone has a clue about what is happening ? I have seen other
> reports of RAID related hangs... Any important change after rc3 ?
> Any important bugfix in libata-dev1 ? Something broken in -mm ?
There was (is) a bug in -rc4-mm1 that may still be there in -rc5-mm1 related to the way RAID-5 and
RAID-6 writes out blocks that can cause a deadlock in the raid code. Do you processes just hang in
the D state and any access to /proc/mdstat do the same thing?
Can you try with just 2.6.11+libata+libata-dev?
I moved to 2.6.11+libata+libata-dev+netdev and all my problems went away.
CC'd to linux-raid
Regards,
Brad
--
"Human beings, who are almost unique in having the ability
to learn from the experience of others, are also remarkable
for their apparent disinclination to do so." -- Douglas Adams
^ permalink raw reply [flat|nested] only message in thread