Skip site navigation (1)Skip section navigation (2)
Date:      Mon, 13 Apr 1998 02:33:16 -0700
From:      Studded <Studded@san.rr.com>
To:        FreeBSD Questions <freebsd-questions@FreeBSD.ORG>
Subject:   Odd panic/reboot cycle (panic: get_pv_entry: cannot get a pv_entry_t)
Message-ID:  <3531DBDC.685587D0@san.rr.com>

next in thread | raw e-mail | index | archive | help
I'm experiencing an odd problem with a 2.2.2 machine that has served
faithfully for well over a year. The program running on that machine is
extremely memory intensive and often runs as high as 200M and higher.
Because this memory gets fragmented, we reboot the machine often,
usually every 2 to 3 days. The program itself is in the process of being
rewritten to avoid some of these issues. Up until the last 3 weeks or so
this pattern has served us well. 

	Recently, a fairly consistent pattern has been developing where after a
manual reboot the machine will panic between an hour and two hours later
with the message:

/kernel: panic: get_pv_entry: cannot get a pv_entry_t

After it panics and reboots itself the system is happy for the next 2 or
3 days.

	I've read the comments in /usr/src/sys/i386/i386/pmap.c so I'm
relatively familiar with the meaning of the error message itself. What I
don't understand is why it's rebooting itself regularly after a manual
reboot, and why (running the same startup scripts, processes, etc.) it's
"happy" after a panic instead of being happy after a manual reboot.

	I realize this is all very odd, however any pointers or assistance
would be welcome. 

Doug

PS, searching the archives was useless since a search for pv_entry_t
returned a large number of entries, none of which had that item in it. I
think the problem is related to underscores in the search item.


-- 
***         Chief Operations Officer, DALnet IRC network       ***
*** Proud operator, designer and maintainer of the world's largest
*** Internet Relay Chat server.  5,328 clients and still growing.
*** Try spider.dal.net on ports 6662-4    (Powered by FreeBSD)

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3531DBDC.685587D0>