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Date: Wed, 13 Apr 2005 00:23:39 +0800
From: Young Lee <ncisoft@163.com>
To: Uzi Klein <uzi@bmby.com>
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cc: freebsd-stable@freebsd.org
Subject: Re: FreeBSD 5.3 SMP freezes with MySQL 4.1
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I had repeated the panic by reset debug.mpsafenet from 0 to 1,
after that, the system  automatically reboot after several hours,
and if debug.mpsafenet was set to 0, the system is stable.

so i guess this is a tcp stack or NIC driver SMP thread-safe issue,
normally my server got over 1000 interrupts/s on bge, I have plan
to replace the onboard bge NIC to fxp and set debug.mpsafenet 
to 1 to see what will happen this week. 

-- 
Young Lee


On Thu, 31 Mar 2005 18:03:08 +0200
Uzi Klein <uzi@bmby.com> wrote:
> Young Lee wrote:
> > Thank you very much. My server's uptime last two days by refer to 
> > Klein's configuration, it's impactful, thanks to Klein. 
> > 
> > My concern of stablility is focus on mysql's build options as
> > BUILD_STATIC & BUILD_OPTIMIZED, but it looks like ridiculous
> > without any logicality, build_static should have not any different
> > between dynamatic lib. I will do some testing after the current
> > configuration to be proven by uptime over one week, and try to
> > find out how to repeat the panic.
> > 
> 
> I think the real change was usin linuxthreads for SMP honestly.
> The BUILD_STATIC & BUILD_OPTIMIZED only increase speed by not setting 
> shared libs and enables assembly AFAIK.
> 
> -- 
> Uzi Klein
> Software Development Manager
> BMBY Software Systems Ltd
> 2 Hataasia St., Yokneam, Israel
> P: +972 4  959 79 89
> F: +972 3  617 93 36
> http://www.bmby.com
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