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Date:      Thu, 1 Oct 1998 15:24:43 -0700
From:      "Morgan Davis" <mdavis@cts.com>
To:        <freebsd-stable@FreeBSD.ORG>
Subject:   KERNEL PANICS in 2.2.7-RELEASE server
Message-ID:  <003b01bded8a$499df3c0$b617a3cd@ctsd2.cts.com>

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The machine is a Pentium II 266MHz with 256MB RAM, and pumps out 2.5 MB/s
(that's mega_bytes_) via an Intel EtherExpress in 100BaseT mode.  This
server was just upgraded from 2.2.6-RELEASE to 2.2.7-RELEASE (including a
newly built kernel based chiefly on GENERIC), and ever since it exhibits
these intermittent panics:

Fatal trap 12: page fault while in kernel mode
fault virtual address	= 0x18
fault code			= supervisor write, page not present
instruction pointer	= 0x8:0xf011e3d1
stack pointer		= 0x10:0xefbffe9c
frame pointer		= 0x10:0xefbffec0
code segment		= base 0x0, limit 0xfffff, type 0x1b
				= DPL 0, pres 1, def32 1, gran 1
processor eflags		= interrupt enabled, resume , IOPL = 0
current process		= 501 (pnserver)
interrupt mask		=
panic: page fault

The panics seem to occur during periods of high activity after running for a
couple of hours.  Otherwise, it appears to operate fine.  Prior to the Intel
card, it was running an SMC Rev C (de driver) card that was even more
sensitive and paniced frequently.  I'm considering reverting back to 2.2.6
unless there is a known issue with 2.2.7-RELEASE that has been resolved
in -stable.  Or maybe there is no some new kernel tweaks required in 2.2.7
to avoid this?

Any assistance is much appreciated.

Thanks.


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