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Date:      Sat, 06 Oct 2012 18:20:58 +0300
From:      Andriy Gapon <avg@FreeBSD.org>
To:        dg17@penx.com
Cc:        freebsd-fs <freebsd-fs@FreeBSD.org>
Subject:   Re: under ZFS, I can reliably crash my systems
Message-ID:  <50704C5A.2060902@FreeBSD.org>
In-Reply-To: <1349534277.45402.7.camel@btw.pki2.com>
References:  <1349447619.89356.13.camel@btw.pki2.com> <506F063F.8050408@FreeBSD.org> <1349534277.45402.7.camel@btw.pki2.com>

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on 06/10/2012 17:37 Dennis Glatting said the following:
> On Fri, 2012-10-05 at 19:09 +0300, Andriy Gapon wrote:
>> on 05/10/2012 17:33 Dennis Glatting said the following:
>>> swap_pager: out of swap space
>>> swap_pager_getswapspace(16): failed
>>> pid 1847 (fstat), uid 0, was killed: out of swap space
>>
>> One thing I can tell you, your kernel and userland are out of sync.
>>
> 
> How so? If svn src and rebuild everything. Do you mean ports?
> 
> Typical src build is:
> 
> svn co svn://svn.pki2.com/base/stable/9/ /disk-1/src
> cd /usr/src; make -j65 buildworld
> make installworld
> yes | make delete-old
> yes | make delete-old-libs
> mergemaster
> cd /sys/amd64/conf/
> ./mkconfig.pl SMUNI.in 
> config SMUNI
> cd ../compile/SMUNI
> make cleandepend && make depend && make
> make install
> 
> That's fairly straight forward.

Why not use buildkernel target with KERNCONF=SMUNI?

Anyway, well, maybe your kernel (the one that produced the crashdump) was from
before the upgrade.  fstat trying to allocate insane amounts of memory during
vmcore processing is a sign that fstat and the kernel were compiled using
different versions of system headers.

-- 
Andriy Gapon



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