Re: another 2.4.12 + aacraid + SuSE failure.

[Hendrik Visage]

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Attached the versions etc. of the installed software:

On Tue, Nov 06, 2001 at 07:56:54AM -0600, [e-mail] wrote:
> You are the first person that has reported this issue with anything below
> 2.4.10 kernel.  I'm kicking this over to one of our engineers and hopefully
> we can start coming up with something and figure what the fault is here.
> Here is something that Hendrik has found that might help find an answer.
> Hendrik any luck so far?????  Can you kick back and tell what if anything
> you have updated besides the kernel in the system?
> 
> Using SGL (sorcerer.wox.org) Linux 2.4.13 + patches
> It appears to be only for the ext2 FS's and not for the reiserfs.
> 
> Interesting, if you've compiled in kernel debugging & the SysReq key stuff, 
> and then issue an emergency sync (Alt-SysReq-S) it works to break the ext2
> out of the lock. 
> 
> An strace of a hanging e2fsck, hangs at the opening of the device...
> 
> I'll perhaps have to try the -ac patches then ...
> 
> Hendrik
> 
> -----Original Message-----
> From: Chris Pascoe [mailto:[e-mail]]
> Sent: Tuesday, November 06, 2001 7:29 AM
> To: [e-mail]
> Subject: RE: another 2.4.12 + aacraid + SuSE failure.
> 
> 
> Hi Steve,
> 
> I don't understand what you're trying to tell me - so perhaps you read my
> message wrong.  I know about alan's patches, I've written a fair bit of
> kernel code over the past few years for various reasons, and tracked the
> ac kernels along the way - and do know how to clean the kernel tree
> completely, etc.  I thought we also determined it was a kernel problem a
> while back too.
> 
> The problem _is still there_ in the official RH kernel 2.4.9-13 - based on
> Alan's kernel!!!  It's not fixed by the AC patches at 2.4.9, at least.
> It appeared to be fine, but after a few days of running variants of them,
> it dies just the same as before.
> 
> RH7.1 is supposedly "supported" by Dell; the kernel I am running is an
> errata upgrade for it, so it needs to be fixed back in this kernel version
> - going to "vanilla" 2.4.10 and losing the little support that we have
> isn't an option.  Going to non-redhat kernels also isn't an option if I
> want to run the tested XFS kernel releases on my 3 identical production
> servers too, and expect any support from the XFS guys when there's
> hiccups.
> 
> So, I've got a RH 2.4.9-13 compiled locally now with kdb in it.
> Eventually the machine runs out of memory (it seems) if you leave it
> sitting at the "Checking root filesystem" and I get a traceback of the
> kernel state.  If you break to kdb prior to the crash (i.e.  while the
> machine appears hung), or wait for it to crash you get an extremely
> strange traceback on the fsck.ext2 process - that suggests something in
> the kernel has overwritten something in memory in a bad way.  I just hard
> crashed my machine setting breakpoints to try to figure out what was going
> on / where this overwriting happens, so I can't try any more (it's 11pm
> local time, anyway - I should be sleeping).
> 
> Chris
> 
> On Tue, 6 Nov 2001 [e-mail] wrote:
> 
> > Found that the problem is kernel oriented in some way.  I went and got
> Alan
> > Cox's patches for the 2.4.10 and applied the latest did a make mrproper
> > which starts completely over and then applied the aacraid patch again and
> > then recompiled and is coming up clean every time now.  RedHat kernels are
> > built and based on Alan Cox's kernel so there is some patch he has in the
> > kernel that is fixing the issues.  So if you go to kernel.org and go to
> > linux and then kernel and then people his folder is alan and he has
> patches
> > for every 2.4 version there is in this folder.  I was experiencing the
> same
> > hangs due to the fact that I have Mandrake 8.1 loaded on the PE2500
> instead
> > of Redhat and it seems to be for now that Suse and Mandrake have the
> problem
> > for sure and I'm not very sure about Debian at this point.
> >
> > -----Original Message-----
> > From: Chris Pascoe [mailto:[e-mail]]
> > Sent: Monday, November 05, 2001 8:06 PM
> > To: [e-mail]
> > Cc: [e-mail];
> > [e-mail]
> > Subject: Re: another 2.4.12 + aacraid + SuSE failure.
> >
> >
> > Hi Steve,
> >
> > > Been pounding away on recompiling 2.4.10 on PE2500 with PERC3/DI and was
> > > getting the same hang at CHECKING ROOT FILESYSTEM.
> > [...]
> >
> > I'm now seeing these hangs with the RedHat 2.4.9-13 kernel - 4 consecutive
> > reboots now, it's just hung on but it has been fine before.  I'll power
> > cycle the machine (test box) shortly.  Any further ideas / news on this
> bug?
> >
> > Chris
> >
> >
> > _______________________________________________
> > Linux-PowerEdge mailing list
> > [e-mail]
> > http://lists.us.dell.com/mailman/listinfo/linux-poweredge
> >
> 

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