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Re: [Evms-devel] XFS + evms + x86_64 + network hangs...

To: Nathan Scott <nathans@xxxxxxx>
Subject: Re: [Evms-devel] XFS + evms + x86_64 + network hangs...
From: Hendrik Visage <hvisage@xxxxxxxxxxxxxx>
Date: Thu, 3 Jun 2004 07:42:18 +0200
Cc: Hendrik Visage <hvisage@xxxxxxxxxxxxxx>, Jan De Landtsheer <jan@xxxxxxxxxxxx>, Jord Tanner <jord@xxxxxxxxxxxxx>, evms-devel@xxxxxxxxxxxxxxxxxxxxx, linux-xfs@xxxxxxxxxxx
In-reply-to: <20040603092835.A1045786@wobbly.melbourne.sgi.com>
References: <40BB48A3.1050205@indygecko.com> <20040601083234.GB4347@hvs.envisage.co.za> <20040601193038.A999249@wobbly.melbourne.sgi.com> <1086085280.19799.45.camel@Jan-DEV.dct.be> <20040602081013.GB32633@frodo> <20040602081626.GC11107@hvs.envisage.co.za> <20040603092835.A1045786@wobbly.melbourne.sgi.com>
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On Thu, Jun 03, 2004 at 09:28:35AM +1000, Nathan Scott wrote:
> On Wed, Jun 02, 2004 at 10:16:26AM +0200, Hendrik Visage wrote:
> > On Wed, Jun 02, 2004 at 06:10:13PM +1000, Nathan Scott wrote:
> > > still help me greatly.  The common theme from the two folks
> > > who sent me info is use of rsync, and thats what I was using
> > > when I hit it too.. but subsequent runs on exactly the same
> > > data and devices has proved unsuccessful at reproducing.  I'll
> > > keep plugging away.
> > 
> > I've found that when I do "ethernet" rsyncs, I use a different data set
> > (huge directories like the SuSE 9.1 DVDs), as I copy part, it hangs,
> > copy another part, it hangs etc.
> 
> by "hangs" do you mean the kernel becomes unresponsive?  panics?
> your shell prompt never returns?

Kernel and console unresponsive. 
Nothing on console.

I initiated the rsync from another machine (ie. xterm or console), while I
watched the console on the x86_64. The moment the rsync stopped sending
data from the i386, the x86_64's console is also unresponsive. From then
on pings fail, I don't see any updates to the screens (were using "vmstat 1"
in one test), and a reset/power-cycle is needed to revive.

> are you seeing filesystem corruption or "just" these hangs?

Haven't yet noticed corruption, as I were rsyncing, so it checksummed and
sent, and the compressed files is difficult check for corruption if
only half sent in anycase :(

Pleasure.


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