Date: Fri, 13 May 2011 13:00:54 -0400 From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org> To: cronfy <cronfy@gmail.com> Cc: freebsd-questions <freebsd-questions@freebsd.org> Subject: Re: how to diagnose server freeze with ddb? Message-ID: <444o4yo7qx.fsf@lowell-desk.lan> In-Reply-To: <BANLkTik9fT0uZitSFonZ0_2ZtG6risBH=A@mail.gmail.com> (cronfy@gmail.com's message of "Wed, 11 May 2011 18:03:13 %2B0400") References: <BANLkTik9fT0uZitSFonZ0_2ZtG6risBH=A@mail.gmail.com>
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cronfy <cronfy@gmail.com> writes: > I have a server that freezes under high load sometimes. It is on > FreeBSD 7.3. It does not respond neither by network nor to keyboard. > In the same time I can hit Ctrl-Alt-ESC and go to debugger - it works. > > What can I try to do in DDB to find out the reason of server freezing? There are a lot of ddb(4) commands that show the state of the system, and there isn't a lot to go on here. "show locks", "show alllocks", "show intr", "show pcpu" are some of the commands that occur to me as ones I would look at first.
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