Re: [PATCH] amr(4) testers needed...

On Thursday, 13 July 2006 at 12:51:20 -0700, Doug Ambrisko wrote:
> Scott Long writes:
> | Joao Barros wrote:
> | > On 7/11/06, John Baldwin <john_at_baldwin.cx> wrote:
> | > 
> | >> I have a patch for amr(4) that is a forward-port of a Scott Long patch 
> | >> for 4.x
> | >> that fixes some severe data corruption with amr(4) + PAE on 4.x with > 
> | >> 4GB of
> | >> RAM.  I need the patch tested on current though so I can get it into 
> | >> HEAD and
> | >> eventually into 4.x.  The patch for head is at
> | >> http://www.freebsd.org/~jhb/patches/amr_head.patch  It shouldn't break
> | >> anything and should basically be a nop.  I think the patch will apply 
> | >> to 6.x
> | >> (and possibly 5.x) as well.  Thanks!
> | >>
> | > 
> | > I can test it on i386 without PAE. Is that test enough?
> | 
> | Note that this problem is only present when you're using a management
> | app at the same time as heavy disk activity is going on. If you're
> | not using a management app (and few people are, the lack of apps is why
> | I didn't catch this in the first place), then you're completely safe.
> | John's email might be taken as a little alarmist in this respect.
> 
> Hmm, I wonder why we don't see it or maybe we are :-(  We don't usually
> hit the disk hard but have a management app. running.  I've seen
> some strangeness.

I am using this utility every hour in cron, now i have 4 processes in D
state 

24429  ??  D      0:00.01 /usr/local/sbin/megarc -ldInfo -LAll -a0
35394  ??  D      0:00.02 /usr/local/sbin/megarc -ldInfo -LAll -a0
37976  ??  D      0:00.02 /usr/local/sbin/megarc -ldInfo -LAll -a0
40526  ??  D      0:00.02 /usr/local/sbin/megarc -ldInfo -LAll -a0

I understand Scott position, but worried that megarc not killing by
SIGKILL signal, it's not normal. I want to try preceding version of amr
driver. Also i have 5.5 box as load balance pair for this one and never
see such hangs on it.



> 
> Doug A.
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= Best regards, Nikolay Pavlov. <<<------------------------------------ = 
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