Date: Wed, 9 Mar 2016 17:00:05 +0300 From: Dmitry Sivachenko <trtrmitya@gmail.com> To: Konstantin Belousov <kostikbel@gmail.com> Cc: Eugene Grosbein <eugen@grosbein.net>, FreeBSD Stable ML <stable@freebsd.org> Subject: Re: nfs_getpages: error 4 Message-ID: <3EDE50FC-73C5-4993-8ABA-DE824E442D48@gmail.com> In-Reply-To: <AE60C3D0-35A1-4F2B-BE1A-A0EFA2FDC756@gmail.com> 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> <9BBCBDD0-4DAD-4189-9AAA-9FD94A458F7E@gmail.com> <20160305162747.GA67250@kib.kiev.ua> <415B1CAA-2728-48D0-96F0-C20F02F8A045@gmail.com> <20160305183558.GB67250@kib.kiev.ua> <AE60C3D0-35A1-4F2B-BE1A-A0EFA2FDC756@gmail.com>
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> On 05 Mar 2016, at 23:10, Dmitry Sivachenko <trtrmitya@gmail.com> wrote: > > >> On 05 Mar 2016, at 21:35, Konstantin Belousov <kostikbel@gmail.com> wrote: >> >> But I suspect that you do have enough free or reclamaible pages for OOM >> to not trigger, e.g. because you demonstrated commands output from the >> live system after the situation occured. It more likely was a temporal >> free page shortage, after which the system recovered. >> >> I more believe in a bug in the handling of killed process in vm_fault(). >> Could you get the p_flag value for the hung process ? Like >> ps -o flags <pid> > > > Unfortunately I already rebooted this machine because our developers needed it and processes did not stop after kill -9. > > When this repeats, I will try to keep this server up for longer time and provide any necessary information. So far I got the same error: Mar 8 07:13:08 skazka4 kernel: nfs_getpages: error 4 Mar 8 07:13:08 skazka4 kernel: vm_fault: pager read error, pid 58483 (decodcmd) But the process in question finished successfully.
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