Date: Tue, 22 Feb 2011 23:31:12 +0100 From: Martin Matuska <mm@FreeBSD.org> To: Henner Heck <Henner.Heck@web.de> Cc: freebsd-stable@freebsd.org Subject: Re: FreeBSD 8.2 Release, ZFS + Samba, running out of memory Message-ID: <4D643930.9020104@FreeBSD.org> In-Reply-To: <4D6430D9.8060609@web.de> References: <4D6430D9.8060609@web.de>
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There looks like a known bug of not activating memory pages if using sendfile(2). This was fixed by kib@ in revision 218795 of stable/8. Please try the following patch and report the result: http://people.freebsd.org/~mm/patches/releng_8_2/218795.zfs.patch Dňa 22.02.2011 22:55, Henner Heck wrote / napísal(a): > > Hello, > > i experience freezing of my FreeBSD machine when performing certain > operations > on a Samba share. > > Technical info: > - FreeBSD 8.2 Release 64 Bit (it also happened with 8.2 RC3) > - Samba 3.5.6.1 > - Athlon II Quadcore, 4 GB Ram > - 1 SSD with a ZFS pool (No.0) containing the FreeBSD system > - 12x2TB RaidZ2 pool (No.1) for data, created on 12 GEOM eli encrypted > partitions on 12 disks, > shared to a Windows 7 PC with Samba, > 8 of the disks are attached to 2 Marvell SATA controllers, 4 to the > onboard controller > - ZPool v15, ZFS v4 > > Scenarios (checked using top): > > A: > When copying files from one directory in pool 1 to another, the free > memory drops from > about 3700M to abaout 200M in the process, but seems to stabilize then. > > B: > When copying the files onto a Windows machine using the Samba share, > the free memory seems to stabilize at about 100M. > > C: > When computing a hashvalue of files from the share on Windows or doing a > binary compare to copies of the files stored on the Windows PC (using > Total Commander), > the free memory on the FreeBSD machine drops even lower and shortly > after the BSD system freezes.
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