From: wang <wang@cray.com>
To: lustre-devel@lists.lustre.org
Subject: [Lustre-devel] discontiguous kiov pages
Date: Wed, 1 Jun 2011 19:33:31 -0700 [thread overview]
Message-ID: <4DE6F67B.6040207@cray.com> (raw)
Our gnilnd is running into a hole in kiov list in Lustre 2.1:
LustreError: 17837:0:(gnilnd_cb.c:594:kgnilnd_setup_phys_buffer()) Can't make payload
contiguous in I/O VM:page 17, offset 0, nob 6350, kiov_offset 0 kiov_len 2254
LustreError: 17837:0:(gnilnd_cb.c:1751:kgnilnd_send()) unable to setup buffer: -22
Is it now legal for an internal IOV (or KIOV) page to have less than a full page size ?
It used to be that only the first and last page in an IOV were allowed
to be of a offset + length < PAGE_SIZE.
It doesn't have this problem with 1.8 client and 2.1 server.
Wally
next reply other threads:[~2011-06-02 2:33 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-02 2:33 wang [this message]
2011-06-02 13:19 ` [Lustre-devel] discontiguous kiov pages Eric Barton
2011-06-07 23:57 ` Oleg Drokin
2011-06-08 16:08 ` Nic Henke
2011-06-08 20:09 ` Jinshan Xiong
2011-06-09 8:37 ` Peter Jones
2011-06-09 3:16 ` Oleg Drokin
2011-06-09 14:38 ` Eric Barton
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