All of lore.kernel.org
 help / color / mirror / Atom feed
* short read from NFS client
@ 2012-05-07 17:52 Malahal Naineni
  2012-05-07 18:51 ` Myklebust, Trond
  0 siblings, 1 reply; 2+ messages in thread
From: Malahal Naineni @ 2012-05-07 17:52 UTC (permalink / raw)
  To: linux-nfs

Hi All,

	An application running on an NFS file got short read (received
fewer bytes than requested). At the same time, we noticed few ESTALE
errors for NFS READ Calls in the tcpdump. We lost few packets in the
tcpdump, so can't say if there were any other errors at that time. What
are the circumstances (other than the ones listed below) where NFS
client can send a short read to the application in buffered read system
call?

EOF is not reached, no direct I/O is involved, and the read syscall is not
interrupted, of course!

Thanks, Malahal.


^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: short read from NFS client
  2012-05-07 17:52 short read from NFS client Malahal Naineni
@ 2012-05-07 18:51 ` Myklebust, Trond
  0 siblings, 0 replies; 2+ messages in thread
From: Myklebust, Trond @ 2012-05-07 18:51 UTC (permalink / raw)
  To: Malahal Naineni; +Cc: linux-nfs
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^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2012-05-07 18:52 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-05-07 17:52 short read from NFS client Malahal Naineni
2012-05-07 18:51 ` Myklebust, Trond

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.