On Fri, Aug 31, 2007 at 01:33:04PM +0400, Badalian Vyacheslav wrote:
> 
> >>i not have testing mashine.
> >>we have 2 mashine and dynamic routing. if 1 mashine down - all traffic 
> >>go to second mashine.
> >>I can test is on this mashines but i need that testing mashine will 
> >>reboot on kernel panic (sysctl message). No freezes =)
> >>
> >>Ok. i try 2.6.23-rc4.
> >>    
> >
> >...but without testing machine it can be too much risk! New versions
> >of kernel can break your applications (sometimes they should be at
> >least rebuilded).
> >
> >So, maybe you would better try this, 'less testing', version of my patch:
> >
> >  
> I risk only if RC kernel broke hardware. Mashines use only iptables and 
> TC. All Scrips backuped.

But sometime a new kernel can break binary compatibility with previous
one (e.g. after data structures change) and e.g. iptables or iproute
tools stop working or work in an unpredictable way. There were a few
such changes before 2.6.20 - I don't track current changes too much.
And I'm sure your system uses much more than iptables or TC, even
without your knowledge.

> But if i need to reboot PC by hand (if it freeze) i need drive to 
> servers-room =)

Of course, if previous kernel always boots by default, or even there
is a possibility to use for testing different partition with a copy
of main system this risk should be much smaller.

> 
> > BTW, I think after this BUG could be something more about other CPUs.
> > Could you check this?
> 
> I send to you all info that catch NETCONSOLE. i don't cut any info...

So, it seems something was broken. But, I meant, there can be sometimes
interesting things a few lines before or after the infos too.

> 
> Now 1 mashine work at *"2.6.23-rc4-git2 
> <http://kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.23-rc4-git2.bz2>"
>  
> Backup mashine use 2.6.18*
> 

BTW, -git versions are usually more risky than -rc. And, maybe, let
this 2.6.18 better stay away from this testing...

Thanks,
Jarek P.
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