RE: NFS Client and SMP

["Elgar, Jeremy" <JElgar@ndsuk.com>]

I am having a similar problem that I had been putting down to a problem with
an OpenBSD box,

Copying a large (n>20) number of file from local disk to an nfs share (on
the BSD box)
causes the server to totally freeze (have to reboot) normally have to bring
the local machines nic up and down to get anything back. kill's on the cp's
wont do anything

happened with each 2.4.x from 4 onwards, on an SMP Dual PIII 933 2Gb Ram

Oddly enough its only on a 'cp -r dir' or 'cp dir/*' it seems to hang, (so
much so that I have been doing a for each script hack, upto now.

All other machines (a mixture of Debian and open BSD boxes are okay)

I can supply / test if it turns out to be a linux problem.

Jeremy

  

> -----Original Message-----
> From: Oliver Paukstadt [mailto:pstadt@stud.fh-heilbronn.de]
> Sent: 28 August 2001 17:17
> To: Linux-Kernel
> Subject: NFS Client and SMP
> 
> 
> HY HY
> 
> I have massive problems using client nfs on SMP boxes.
> I can reproduce it 2.4.[0-7] on s390 and s390x and with 
> 2.4.[0-8] on IA32.
> 
> Try to reproduce starting massive IO on an nfs mounted 
> volume, eg. tar it
> to /dev/null.
> I tested it against verious servers, eg Slowlaris, HP-UX, 
> DEC, Linux 2.2,
> Linux 2.4, no tar survived.
> using NFS v2 or v3 caused no differences.
> One Intel we have to identical machines with identical setup 
> and only the
> box locks up running nfs client (we switched the roles of the boxes)
> 
> On S390 it took 5 to 30 minutes to lock the system, on Intel 
> sometimes it
> took up to 3 hours.
> 
> Running the system with only one cpu caused no hangs, all 
> tars finished.
> 
> BYtE Oli
> 
> +++LINUX++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ++++++++++++
> +++Manchmal stehe ich sogar nachts auf und installiere mir 
> eins....+++++++
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ++++++++++++ 
>  
> 
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