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Date:      Fri, 29 May 2009 14:08:09 -0500 (CDT)
From:      Larry Rosenman <ler@lerctr.org>
To:        Kip Macy <kmacy@freebsd.org>
Cc:        freebsd-current@freebsd.org
Subject:   Re: ZFS Crash
Message-ID:  <alpine.BSF.2.00.0905291407080.81644@thebighonker.lerctr.org>
In-Reply-To: <3c1674c90905291129h7bd6fb6ai6ab772e3aed624d@mail.gmail.com>
References:  <alpine.BSF.2.00.0905250040230.1781@borg> <3c1674c90905242253n544c3f0cqb10952f349391ce7@mail.gmail.com> <454b8cc37c60ab7af2663ba70ddbfd59.squirrel@webmail.lerctr.org> <5a9a181a12e9e4ef864d23ae063f7277.squirrel@webmail.lerctr.org>  <alpine.BSF.2.00.0905250803350.79867@borg> <alpine.BSF.2.00.0905260702300.1820@borg> <3c1674c90905280055h740bce23p33b18fefacf31196@mail.gmail.com> <alpine.BSF.2.00.0905280724480.58845@borg> <alpine.BSF.2.00.0905291242060.77764@thebighonker.lerctr.org> <3c1674c90905291129h7bd6fb6ai6ab772e3aed624d@mail.gmail.com>

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On Fri, 29 May 2009, Kip Macy wrote:

> I'm fairly certain I know what the problem is. The (de)compress
> functions allocate their own memory completely independently of the
> arc limits. The allocations are blocking so the system will try to
> page in attempt to provide the requested memory.
>
>
> Cheers,
> Kip
Is there anything else I can supply?  Is the minute-by-minute
vmstat info useful?  Should I keep running it?

I'm willing to be a guinea pig for code changes.


-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 512-248-2683                 E-Mail: ler@lerctr.org
US Mail: 430 Valona Loop, Round Rock, TX 78681-3893



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