Date: Sun, 18 Feb 2001 11:36:49 -0800 (PST) From: Matt Dillon <dillon@earth.backplane.com> To: Mike Meyer <mwm@mired.org> Cc: stable@FreeBSD.ORG Subject: Re: Suggestions for diagnosing lockups Message-ID: <200102181936.f1IJanm31380@earth.backplane.com> References: <14991.58225.783986.487533@guru.mired.org>
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:I've got a box that's been running FreeBSD relatively problem-free for
:the last couple of years. I installed 4.2-R about a week ago, and
:started having lockups every night. A second box is checking on the
:problem box once a minute, and logging a message if it famils to
:connect. I can therefore determine that the lockup occurs reliably a
:shortly (less than a minute) after the periodic daily run
:starts. Running the periodic script by hand works fine. So does "make
:world".
:
:I've enabled DDB in the kernel, verified that it worked, then watched
:the system freeze. However, I normally leave X running on the box, and
:...
Try doing the 'edit crontab to run daily in the next minute' trick
after switching out of X into a VT. e.g. 'crontab -e' and create
a dummy entry to run the daily script at a particular time that will
just happen to occur in a minute or two.
I also recommend using 4.2-Stable rather then 4.2-Release. 4.2-Release
has a number of bugs and security holes relative to stable.
-Matt
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