Date: Mon, 18 May 2009 21:42:12 -0500 (CDT) From: "Larry Rosenman" <ler@lerctr.org> To: "Kip Macy" <kmacy@freebsd.org> Cc: Adam McDougall <mcdouga9@egr.msu.edu>, current@freebsd.org Subject: Re: Fatal trap 12: page fault panic with recent kernel with ZFS Message-ID: <89bf2a3ec987be637c12029a7cd76508.squirrel@webmail.lerctr.org> In-Reply-To: <3c1674c90905181815r49a5bbe2u5d4a73e4f91f89a6@mail.gmail.com> References: <20090518145614.GF82547@egr.msu.edu> <alpine.BSF.2.00.0905181031240.35767@thebighonker.lerctr.org> <alpine.BSF.2.00.0905181830490.1756@borg> <3c1674c90905181659g1d20f0f1w3f623966ae4440ec@mail.gmail.com> <alpine.BSF.2.00.0905181906001.2008@borg> <3c1674c90905181800x469d3cabx5df959d3585b4b5a@mail.gmail.com> <040ce5cee10b3b92fd127bbce83f4c77.squirrel@webmail.lerctr.org> <3c1674c90905181815r49a5bbe2u5d4a73e4f91f89a6@mail.gmail.com>
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On Mon, May 18, 2009 8:15 pm, Kip Macy wrote: > On Mon, May 18, 2009 at 6:05 PM, Larry Rosenman <ler@lerctr.org> wrote: >> >> On Mon, May 18, 2009 8:00 pm, Kip Macy wrote: >>> On Mon, May 18, 2009 at 5:06 PM, Larry Rosenman <ler@lerctr.org> wrote: >>>> On Mon, 18 May 2009, Kip Macy wrote: >>>> >>>>> The ARC cache allocates wired memory. The ARC will grow until there >>>>> is >>>>> vm pressure. >>>> >>>> My crash this AM was with 4G real, and the ARC seemed to grow and >>>> grow, >>>> then >>>> we started paging, and then crashed. >>>> >>>> Even with the VM pressure it seemed to grow out of control. >>>> >>> >>> >>> >>> >>> You're running the most recent HEAD? >> >> Yes. Also, this used to work just fine (as recently as a 8-may-2009 >> kernel) >> with 4G real. >> >> It used to leave about 2700M free. >> >> The changes in the last week apparently changed something. >> >> When I crashed this AM, I re-csup'ed. That's the kernel that's running >> now. > > > > Please update to r192360 and let me know if that helps. > > > Thanks, > Kip > I've put that code in place. I'm going to let my normal backups etc run. Thanks for the quick patch! LER -- 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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