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Date:      Tue, 4 Aug 1998 15:50:33 -0400 (EDT)
From:      Thomas David Rivers <rivers@dignus.com>
To:        brett@lariat.org, hackers@FreeBSD.ORG
Subject:   Re: More on the crashes
Message-ID:  <199808041950.PAA16333@lakes.dignus.com>
In-Reply-To: <199808041603.KAA02474@lariat.lariat.org>

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Brett Glass <brett@lariat.org> writes:
> 
> Here's some more info on the spontaneous crashes we're seeing under 2.2.7.
> They seem to happen during times of heavy CPU and memory loads; the crash
> this morning occurred when we were doing a backup of the entire disk. We do
> our daily backups by piping the output of dump through gzip -9 and then
> through FTP to a hard disk on another machine. Just before our OS upgrade
> we did several such backups for safety; none of them caused a crash.
> 
> The reboots leave the file system a bit inconsistent.
> 
> At one point, with a kernel that was built slightly differently, we got
> error messages saying  "malloc(): recursive call" (or something similar).
> Once, we saw a panic screen that described a virtual memory error; it
> flashed just before the reboot.
> 
> Has anyone else seen these? I'm concerned that there might be a VM problem
> in 2.2.7. (We can't see any signs of flaky hardware.)
> 
> --Brett
> 
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
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> 

 
 Yes - I've seen it (along with someone else.)  I saw it with the
upgrade from 2.2.5 to 2.2.6.  [Did you see it at 2.2.6?]

 I've already sent a PR for this; it's kern/7367.

 I've taken the liberty of adding this reply to that PR entry... You
may want to look at that entry for other comments/descriptions.

	- Dave Rivers -

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