Date: Sun, 22 Mar 2015 13:05:43 -0500 From: Michael Tuexen <tuexen@freebsd.org> To: Olivier Houchard <mlfbsd@ci0.org> Cc: "freebsd-arm@freebsd.org" <arm@freebsd.org> Subject: Re: panic: pmap_demote_section: No l2_bucket for wired mapping Message-ID: <667A250D-91AC-4B81-97E3-4C351BB35577@freebsd.org> In-Reply-To: <20150322151934.GA31108@ci0.org> References: <AF7A0CA1-6A0C-47CC-B096-646BBD235862@freebsd.org> <20150322151934.GA31108@ci0.org>
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> On 22 Mar 2015, at 10:19, Olivier Houchard <mlfbsd@ci0.org> wrote: >=20 > On Sun, Mar 22, 2015 at 06:54:06AM -0500, Michael Tuexen wrote: >> Dear all, >>=20 >=20 > Hi Michael,=20 >=20 >> running head on a Raspberry Pi became unstable. When running >> r280329 for a while (the machine is exposed to the Internet, so >> ssh logins are continuously tried), the machine panics: >>=20 >> panic: pmap_demote_section: No l2_bucket for wired mapping >>=20 >> It might be related to >> https://svnweb.freebsd.org/changeset/base/280324 >>=20 >> Any idea what is going on? >>=20 >=20 > Doest backing rev 280324 out fixes it ? I'm at a loss as to why my = commit=20 OK, testing done. Backing out 280324 does NOT help. So the issue is not = related to this patch. Disabling superpages helps to work around the issue. Best regards Michael > could provoke this, and can't seem to reproduce it on my pandaboard. > Another possibility is that rev 280327, which makes it possible to map > library's code using superpages, uncovered a bug somewhere. >=20 > Regards, >=20 > Olivier >=20
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