Date: Fri, 26 Jan 2007 22:40:26 +0100 From: Remco Bressers <remco@signet.nl> To: Kris Kennaway <kris@obsecurity.org> Cc: Remco Bressers <rbressers@signet.nl>, freebsd-bugs@FreeBSD.org Subject: Re: kern/103455: "swap_pager: indefinite wait buffer" with page file enabled (causes lockups) Message-ID: <1169847626.12665.4.camel@localhost> In-Reply-To: <20070126185857.GB15976@xor.obsecurity.org> References: <200701251040.l0PAeNie054614@freefall.freebsd.org> <20070126185857.GB15976@xor.obsecurity.org>
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On vr, 2007-01-26 at 13:58 -0500, Kris Kennaway wrote: > On Thu, Jan 25, 2007 at 10:40:23AM +0000, Remco Bressers wrote: > > The following reply was made to PR kern/103455; it has been noted by GNATS. > > > > From: Remco Bressers <rbressers@signet.nl> > > To: bug-followup@FreeBSD.org, nick@nickwithers.com > > Cc: > > Subject: Re: kern/103455: "swap_pager: indefinite wait buffer" with page > > file enabled (causes lockups) > > Date: Thu, 25 Jan 2007 09:38:21 +0100 > > > > Hi, > > > > I noticed the same problem on 6.2-RELEASE on a heavily loaded storage > > system running rsync. > > When multiple clients connect to the rsync box and start filling up the > > memory with file-lists, the machine (once in a while) locks up with the > > same messages : > > > > swap_pager: indefinite wait buffer: bufobj: 0, blkno: 43638, size: 4096 > > swap_pager: indefinite wait buffer: bufobj: 0, blkno: 43947, size: 32768 > > swap_pager: indefinite wait buffer: bufobj: 0, blkno: 44007, size: 4096 > > swap_pager: indefinite wait buffer: bufobj: 0, blkno: 47939, size: 32768 > > > > The machine becomes non-responsive unfortunatly. > > Are you sure it's the same, i.e. are you also using a swap file? > > Kris I'm using a swap filesystem. The machine has 1GB of RAM : > swapinfo -h Device 1K-blocks Used Avail Capacity /dev/da0s1b 2097152 56K 2.0G 0% > dmesg is giving me the following memory info : real memory = 1073676288 (1023 MB) avail memory = 1028702208 (981 MB) The machine stops when it's very heavily used (e.g. many client hosts are sending data via rsync to this hosts). I/O is pretty heavy and running on a 3Ware 9550SX-12 on 10 500GB Seagate 7200.9 disks. The RAID controller verified the disks and thei're all correct. No ECC or S.M.A.R.T. errors, so i guess it isn't cabling or anything. Regards, Remco Bressers Signet B.V.
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