Subject: Re: Processes getting stuck in disk wait on current currents
To: Wolfgang Rupprecht <firstname.lastname@example.org>
From: Chuck Silvers <email@example.com>
Date: 02/18/2001 19:21:56
I just copied 500 MB from NFS to a local filesystem with "tar | (cd && tar)"
on an x86 and it worked fine.
can you get a crashdump while some processes are hung in biowait?
On Sun, Feb 18, 2001 at 03:34:03PM -0800, Wolfgang Rupprecht wrote:
> > On my system trace from DDB gave good data - basically the system
> > is healthy and sitting in the idle loop, no interrupts masked, pingable on
> > the network etc.
> Seems that one of my machines is now doing this too. Yesterday rdists
> to it would mysteriously hang and eventually get aborted by the
> sending side. I could still log into that machine via ssh, but that
> rdist was stuck.
> Just to make sure that it wasn't an ffs corruption bug I went single
> user, mounted an NFS /usr and newfs-ed the local one. Then I did a
> tar copy from the NFS-ed /usr to the clean local partition. The tar
> also hung after a few 10's of megs. The writing tar is waiting on
> "biowait" flags 0x4006 according to DDB. (This is even with
> "genfs_vnops.c,v 1.29 2001/02/18")
> Does this ring a bell for anyone?
> Wolfgang Rupprecht <firstname.lastname@example.org>
> Coming soon: GPS mapping tools for Open Systems. http://www.gnomad-mapping.com/