Date: Tue, 16 Apr 2013 13:01:49 -0700 From: Jim Harris <jim.harris@gmail.com> To: David Wolfskill <david@catwhisker.org> Cc: "current@freebsd.org" <current@freebsd.org> Subject: Re: Stack Overflow in GEOM Message-ID: <CAJP=Hc_PxNWE2uMTAXG2VK7ptJ4Hc4sPGPixFF2GE5=YeBuHfA@mail.gmail.com> In-Reply-To: <20130416181348.GR1404@albert.catwhisker.org> References: <201304161756.r3GHuVmu003474@slippy.cwsent.com> <20130416181348.GR1404@albert.catwhisker.org>
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On Tue, Apr 16, 2013 at 11:13 AM, David Wolfskill <david@catwhisker.org>wrote: > On Tue, Apr 16, 2013 at 10:56:31AM -0700, Cy Schubert wrote: > > Has anyone see this before? Just updated my CURRENT partitions on my > > testbed and laptop. The laptop just boots but I've managed to capture > this > > on my testbed (attached to a serial port on another system). > > > > This is HEAD from yesterday (Apr 15) morning (PDT). The partition being > > booted is ada0s1d. On my laptop it's ada0s3a. KSTACK_PAGES is 4. Is > there a > > way to quickly display that kern.kstack_pages from DDB? > > ... > > panic: stack overflow detected; backtrace may be corrupted > > cpuid = 1 > > KDB: enter: panic > > [ thread pid 13 tid 100009 ] > > .... > > I'm seeing this, but my situation is ... reversed: my build machine came > up OK: > > FreeBSD freebeast.catwhisker.org 10.0-CURRENT FreeBSD 10.0-CURRENT #1134 > r249538M/249542:1000030: Tue Apr 16 09:15:49 PDT 2013 > root@freebeast.catwhisker.org:/usr/obj/usr/src/sys/GENERIC i386 > > but my laptop exhibits symptoms that I *believe* resemble those you > cited. (I was unable to get a crash dump, and the machine rebooted too > quickly after I typed "panic" at the ddb prompt. I don't have a serial > console on the laptop.) > > I had thought that it might be nvidia-driver-related (again), but I also > note that the laptop has a single SATA drive, while the build machine > has SCSI (possibly SAS -- machine is powered off for the day, since its > work is done) drives. Laptop also has 2x the memory the build machine > does. (They are each i386.) > > My last successful smoke-test for head on the laptop was yesterday: > > FreeBSD g1-227.catwhisker.org 10.0-CURRENT FreeBSD 10.0-CURRENT #869 > r249502M/249503:1000030: Mon Apr 15 05:23:38 PDT 2013 > root@g1-227.catwhisker.org:/usr/obj/usr/src/sys/CANARY i386 > > I had built head @r249538 this morning, and that's the build where > my smoke-test failed. > > This stack trace corruption was noted on svn-src-head@ as well, and appears to be fixed with r249564. -Jim
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