Date: Sun, 22 Mar 2015 11:31:49 -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: <B37718FD-4316-4E79-A6D8-75CD8AE4A322@freebsd.org> In-Reply-To: <20150322151934.GA31108@ci0.org> References: <AF7A0CA1-6A0C-47CC-B096-646BBD235862@freebsd.org> <20150322151934.GA31108@ci0.org>
next in thread | previous in thread | raw e-mail | index | archive | help
> On 22 Mar 2015, at 10:19, Olivier Houchard <mlfbsd@ci0.org> wrote: > > On Sun, Mar 22, 2015 at 06:54:06AM -0500, Michael Tuexen wrote: >> Dear all, >> > > Hi Michael, > >> 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: >> >> panic: pmap_demote_section: No l2_bucket for wired mapping >> >> It might be related to >> https://svnweb.freebsd.org/changeset/base/280324 >> >> Any idea what is going on? >> > > Doest backing rev 280324 out fixes it ? I'm at a loss as to why my commit Update: I was able to login and add set vm.pmap.sp_enabled=0 to /boot/loader.rc This way I was able to back out r280324 and recompile the kernel now. Once that is finished I'll enable superpage support and will report if the issue shows up or not. 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. > > Regards, > > Olivier >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?B37718FD-4316-4E79-A6D8-75CD8AE4A322>