Date: Tue, 13 Jul 2004 18:48:21 -0700 (PDT) From: Doug White <dwhite@gumbysoft.com> To: Gary Stanley <gary@outloud.org> Cc: freebsd-current@freebsd.org Subject: Re: Network related procs hang in unusual sfpbsy state Message-ID: <20040713184408.W527@carver.gumbysoft.com> In-Reply-To: <6.1.2.0.2.20040712142407.02d38a98@64.124.166.215> References: <6.1.2.0.2.20040712142407.02d38a98@64.124.166.215>
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On Mon, 12 Jul 2004, Gary Stanley wrote: > New current kernel from about 3 days ago, certain processes hang after > about a day in this state; > > 80 599 1 0 -16 -2 59020 53548 sfpbsy D< ?? 1141:08.65 > /mnt/zeus/web/bin/zeus.web sfpbsy is used in do_sendfile(). It blocks on this if a page for the file its trying to send is busy. It may be blocked on another process or the volume its on is taking a while to page the page in. You might check the logs or whatever for zeus and see if all of them are hung trying to request the same file, or if its on the same filesystem. Anyone who understands the reason things get marked PG_BUSY can chime in here :) -- Doug White | FreeBSD: The Power to Serve dwhite@gumbysoft.com | www.FreeBSD.org
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