Date: Fri, 10 Oct 2008 12:19:11 +0200 From: Laszlo Nagy <gandalf@shopzeus.com> To: Jeremy Chadwick <koitsu@FreeBSD.org>, freebsd-questions@freebsd.org Subject: Re: [SOLVED] Re: 7.1 hangs, shutdown terminated Message-ID: <48EF2C1F.6000004@shopzeus.com> In-Reply-To: <48EF23CB.8020104@shopzeus.com> References: <48EF14E1.9080808@shopzeus.com> <57200BF94E69E54880C9BB1AF714BBCB5DE18C@w2003s01.double-l.local> <48EF1C9C.3020201@shopzeus.com> <20081010091738.GA27925@icarus.home.lan> <48EF23CB.8020104@shopzeus.com>
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>> > Thank you very much! Probably you are right. Our users use shared IMAP > folders and sometimes they keep ten thousands of messages in one > folder. I have increased dirhash_maxmem to 64MB and see what happens. > > Unfortunately, I cannot play with the hardware because it is in a > server park, and it must be up 99.99% on workdays. > > I hope dirhash will solve the problem. I'm setting this to [SOLVED] > and come back if it happens again. (Maybe on monday?) > > By the way, there is nothing in /etc/periodic that would execute "find > / -sx". Can somebody explain what is this for, and why it was started > by root? Is it being used instead for enumerating files in a > directory, when dir hash is full? I'm starting to believe that this was the problem. Within an hour, I see this: shopzeus# sysctl vfs.ufs vfs.ufs.dirhash_docheck: 0 vfs.ufs.dirhash_mem: 33708867 vfs.ufs.dirhash_maxmem: 134217728 vfs.ufs.dirhash_minsize: 2560 Went up to 32MB! L
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