Re: kernel BUG with 2.4.27-om20041102-tab on SMP when doing heavy I/O

Peter Cordes <[email protected]>
Newsgroups gmane.linux.cluster.openmosix.devel
Message-ID <[email protected]>
On Sat, Oct 01, 2005 at 03:57:09AM +0200, Moshe Bar wrote:
> Hard to think of where the bug (if any) might be.

 Yeah, I feel like I'm fumbling in the dark with unstable kernels, and
nothing seems likely enough to merit seriously trying to do any hacking :(
esp. since I'm still busy wrapping my head around cfengine2 and fai to keep
my clusters manageable.  At least I'm confident the hardware is ok.  I've
run memtester a lot while the system is up and running (and memtest86 for a
few hours during some reboot downtime), so I don't think there's a problem
there.

> What gcc did you use
> to compile  your kernel?

 Debian Sarge's default compiler, gcc 3.3.5.  (See the kernel version string
from my original message, which is still quoted below :)

> On 9/30/05, Peter Cordes <[email protected]> wrote:
> > On Tue, Sep 27, 2005 at 03:13:32PM -0300, Peter Cordes wrote:
> > >  I have been running  2.4.27-om20041102-tab (peter-OPrYhD/TZC/[email protected])
> > > (gcc version 3.3.5 (Debian 1:3.3.5-13)) #1 SMP Wed Sep 7  on my dual Opteron
> > > cluster.  The master node has 4GB of RAM, and the other 7 nodes have 2GB.
> > > All with gigabit ethernet.  The master has an Intel e100 built in to the
> > > mobo too, which is used to connect to the outside world.
> > >
> > >  My kernel config is
> > > CONFIG_MOSIX=y
> > > # CONFIG_MOSIX_TOPOLOGY is not set
> > > CONFIG_MOSIX_SECUREPORTS=y
> > > CONFIG_MOSIX_DISCLOSURE=3
> > > # CONFIG_MOSIX_FS is not set
> > > CONFIG_MOSIX_PIPE_EXCEPTIONS=y
> > > # CONFIG_MOSIX_NO_OOM is not set
> > > CONFIG_MOSIX_EXT_LOCALTIME=y
> > >
> > >  My filesystems are JFS on RAID0 and RAID1 partitions of two SATA drives,
> > > connected to the SATA_SIL ports on the Tyan S2882 motherboard.
> >
> >  I was also using channel bonding (modprobe bonding mode=4) on my gigabit
> > ethernet interfaces.
> > ...

-- 
#define X(x,y) x##y
Peter Cordes ;  e-mail: X(peter@cor , des.ca)

"The gods confound the man who first found out how to distinguish the hours!
 Confound him, too, who in this place set up a sundial, to cut and hack
 my day so wretchedly into small pieces!" -- Plautus, 200 BC


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