Re: FYI - Just got a kernel panic - RELENG_4

• Previous message: omestre: "kernel 4.7 x filesystem 4.5"
• In reply to: Marc Ramirez: "FYI - Just got a kernel panic - RELENG_4"
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To: Marc Ramirez <marc.ramirez@bluecirclesoft.com>
Date: Fri, 29 Aug 2003 11:52:16 -0700

On 28 Aug 2003, at 17:34, Marc Ramirez wrote:

> c0271430 T vm_page_remove
> c02714f8 T vm_page_lookup

Your fault address is between those two, so it happened sometime
after you entered vm_page_remove.

This particular failure is often related to running out of KVM/KVA
space (or hardware problems as someone else mentioned), but
without a backtrace it's tough to tell for sure. We had this problem
on one of our machines and recently another fellow had this same
problem.

If you're able to duplicate the panic reliably, then it's likely a
KVM/KVA shortage that you'd fix by rebuilding your kernel with a
larger KVA_PAGES value (see LINT). If this fixes it for you, please
be sure to respond to the list with news of your success so that
others searching for this problem and a solution are able to do so.

If the fault address is variable and the panic is not consistently
reproduceable, then hardware problems are more likely. In many
cases with random panics related to memory allocation or
deallocation, bad RAM is the culprit, but sometimes it can be a
heat issue or a semi-fried CPU that randomly flips bits.

Hope that helps.

Sincerely,
Andrew Kinney
President and
Chief Technology Officer
Advantagecom Networks, Inc.
http://www.advantagecom.net

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• Previous message: omestre: "kernel 4.7 x filesystem 4.5"
• In reply to: Marc Ramirez: "FYI - Just got a kernel panic - RELENG_4"
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