Date: Sat, 5 Mar 2016 17:24:26 +0300 From: Dmitry Sivachenko <trtrmitya@gmail.com> To: Eugene Grosbein <eugen@grosbein.net> Cc: FreeBSD Stable ML <stable@freebsd.org> Subject: Re: nfs_getpages: error 4 Message-ID: <9BBCBDD0-4DAD-4189-9AAA-9FD94A458F7E@gmail.com> In-Reply-To: <56DAE6D2.5040309@grosbein.net> References: <A2A32332-4D9D-40DF-9DEC-EE9000879416@gmail.com> <56DACD4E.3070905@grosbein.net> <550ADE4F-9F60-44FB-BF07-A1384A6B7B1A@gmail.com> <56DAE033.9020304@grosbein.net> <ED06D277-F19B-46F4-BD61-08B6AD10326B@gmail.com> <56DAE6D2.5040309@grosbein.net>
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> On 05 Mar 2016, at 17:01, Eugene Grosbein <eugen@grosbein.net> wrote: >=20 > 05.03.2016 20:42, Dmitry Sivachenko =D0=BF=D0=B8=D1=88=D0=B5=D1=82: >=20 >>> and to discover what version is broken. And show full mount = command/option set. >> I already included mount flags from fstab in my original e-mail: >>=20 >> rw,bg,intr,soft >=20 > If that's only options you use, there is another workaround: add = options > rsize=3D1024,wsize=3D1024 to avoid possible packet = reassemply/defragmentation > related bugs. I wonder how rsize=3Dwsize=3D1024 will affect performance? I have = 10GBit network and I expect to achieve comparable throughput. >=20 > Again, error 4 is EINTR so you could disable both "soft" and "intr" = options for test. "soft" is meaningless in such setup, because "file system calls will = fail after retrycnt round trip timeout intervals" but "The default is a = retry count of zero, which means to keep retrying forever". If I understand "intr" correctly, it matters only when server becomes = unresponsive, that is "server is not responding" message should be in my = logs. But I have no such a message. > Anyway, re-read mount_nfs(8) manual page, section BUGS before switch = to NFSv4. That is why I chose to use NFSv3, I thought it is more mature and stable = implementation.
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