RAID and 2.4.12 ?

RAID and 2.4.12 ?

[Mario Mikocevic]

Hi,

are there any known problems with software raid and kernel 2.4.12 ?

I have several production servers (Dell poweredge 1550) with active
kernels from range of 2.4.8/2.4.9/2.4.12. All of them are quite loaded
with web/ftp/game/realmedia servers.

Only combination of RAID and 2.4.12 gives me trouble, complete hang,
no output, no ping. Unfortunately I can't reproduce it by will, sometimes
it hangs just after few mins of uptime, sometimes after few hours.

I _do_ have few servers running 2.4.12 quite realiably (not a single reboot yet)
but without RAID on them (heavily loaded list server and very heavily loaded
realmedia server).

Combination of 2.4.9 and RAID works without any problem so far.


Any help? Pointers? Patches ?

-- 
Mario Mikočević (Mozgy)
mozgy at hinet dot hr
My favourite FUBAR ...

Re: RAID and 2.4.12 ?

[Jeffrey W. Baker]

On Fri, 19 Oct 2001, Mario Mikocevic wrote:

> Hi,
>
> are there any known problems with software raid and kernel 2.4.12 ?
>
> I have several production servers (Dell poweredge 1550) with active
> kernels from range of 2.4.8/2.4.9/2.4.12. All of them are quite loaded
> with web/ftp/game/realmedia servers.
>
> Only combination of RAID and 2.4.12 gives me trouble, complete hang,
> no output, no ping. Unfortunately I can't reproduce it by will, sometimes
> it hangs just after few mins of uptime, sometimes after few hours.
>
> I _do_ have few servers running 2.4.12 quite realiably (not a single reboot yet)
> but without RAID on them (heavily loaded list server and very heavily loaded
> realmedia server).
>
> Combination of 2.4.9 and RAID works without any problem so far.

I only have anecdotal evidence, but 2.4.12 worked fine for my on a single
SCSI disk but as soon as I mounted my root device on RAID 0, the kernel
would oops  (after ~30 seconds up uptime) and all processes which write to
the disk would be unkillable.

I switched to 2.4.12-ac3 with no problems (yet).

-jwb