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[95.108.172.115]) by smtp.gmail.com with ESMTPSA id r191sm1335217lfe.28.2016.03.09.06.00.06 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 09 Mar 2016 06:00:06 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 9.2 \(3112\)) Subject: Re: nfs_getpages: error 4 From: Dmitry Sivachenko In-Reply-To: Date: Wed, 9 Mar 2016 17:00:05 +0300 Cc: Eugene Grosbein , FreeBSD Stable ML Content-Transfer-Encoding: quoted-printable Message-Id: <3EDE50FC-73C5-4993-8ABA-DE824E442D48@gmail.com> References: <56DACD4E.3070905@grosbein.net> <550ADE4F-9F60-44FB-BF07-A1384A6B7B1A@gmail.com> <56DAE033.9020304@grosbein.net> <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> To: Konstantin Belousov X-Mailer: Apple Mail (2.3112) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Mar 2016 14:00:17 -0000 > On 05 Mar 2016, at 23:10, Dmitry Sivachenko = wrote: >=20 >=20 >> On 05 Mar 2016, at 21:35, Konstantin Belousov = wrote: >>=20 >> 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. >>=20 >> 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 >=20 >=20 > Unfortunately I already rebooted this machine because our developers = needed it and processes did not stop after kill -9. >=20 > 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.=