Date: Fri, 6 Oct 2017 19:46:38 -0700 From: bob prohaska <fbsd@www.zefox.net> To: Svatopluk Kraus <onwahe@gmail.com> Cc: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org>, bob prohaska <fbsd@www.zefox.net> Subject: Re: pmap fault during buildworld on rpi2 Message-ID: <20171007024638.GA41063@www.zefox.net> In-Reply-To: <CAFHCsPUKE67a-YdG4BKVyA_WiRBikD2chd-0nFiwmu_qB7KUMg@mail.gmail.com> References: <20171006155854.GA40189@www.zefox.net> <CAFHCsPUKE67a-YdG4BKVyA_WiRBikD2chd-0nFiwmu_qB7KUMg@mail.gmail.com>
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On Sat, Oct 07, 2017 at 01:13:19AM +0200, Svatopluk Kraus wrote: > I have already suggested the following: > https://lists.freebsd.org/pipermail/freebsd-arm/2017-September/016697.html > I read your message and didn't understand it well enough to follow the advice. > Nevertheless, I'm not sure that I understand the way how it happens. > Does it crash on rebooting or during buildworld? During buildworld. > Are you saying that > all kernels after r322520 crash during buildworld with pmap panic? > Correct, to a good approximation. The approximation is that on one occasion, very shortly after r322520, a kernel managed to complete a buildworld without a panic. That makes one success out of about five tries. Mark Millard reported what seemed like a similar panic about a year ago, but it went away by itself. When the successful build following r322520 happened I expected the same thing to happen. It didn't. bob prohaska > > On Fri, Oct 6, 2017 at 5:58 PM, bob prohaska <fbsd@www.zefox.net> wrote: > > For about one month now, buildworld has been crashing with > > a pmap error. Rebooting an older kernel always seems to solve > > the problem, but on rebooting the newly-compiled system the > > pmap fault happens again on the next buildworld. > > > > There seems to be no such problem during other compilations. > > > > A top window freezes with cc and ld as the dominant processes. > > > > The last kernel I have which works is r322520. > > > > Since nobody else seems to be reporting this behavior > > it's tempting to think the problem is local. Can anyone > > suggest where I might look? Console, top and log are at: > > http://www.zefox.net/~fbsd/rpi2/crashes/crash_10_6_17/ > > > > Thanks for reading, > > > > bob prohaska > > > > _______________________________________________ > > freebsd-arm@freebsd.org mailing list > > https://lists.freebsd.org/mailman/listinfo/freebsd-arm > > To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org"
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