Date: Fri, 1 Mar 2019 13:53:37 -0800 From: Lee Damon <nomad@castle.org> To: freebsd-stable@freebsd.org Subject: more fun, upgrading from 10.3-STABLE 10.4-RELENG to 11.2-RELENG - kernel panic Message-ID: <987591af-c860-2427-0f44-7e4cb491ff68@castle.org>
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After discussion with Bob Bishop (thanks for the help!) I've tried to do the following to upgrade one of the old boxes I mentioned previously. cd /usr/src tar ... . rm -rf .??* * svn checkout httpg://svn.freebsd.org/base/releng/10.3 /usr/src compile, installkernel, installworld... Now that the host is running RELENG the next step was to update from 10.4 to 11.2 via freebsd-update freebsd-update freebsd-install freebsd-update upgrade -r 11.2-RELEASE freebsd-update install so far, so good. Now it all falls apart shutdown -r now ... why isn't the host coming back? Oh look, kernel panic. Fatal trap 12: page fault while in kernel mode cpuid = 1; apci id = 01 fault virtual address = 0x84 fault code = supervisor read data, page not present Google searches find references to the same panic type in VMs running 11.1, including https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=220923 The differences are, that's 11.1 not 11.2 (I would presume the fix made it into 11.2 but maybe not) and most notably, that's against VMs and the host I'm doing this on is bare iron (Sun x4500). Still, I gave the two entries in /boot/loader.conf a try, no joy. Exactly the same panic. Recording the boot with slow-mo shows the panic happening just after the USB devices are enumerated by the kernel. It never even tries to mount root. I am able to boot to kernel.old, which appears to be my old 10.4-STABLE kernel. So now I'm kind of stuck. The update has already modified the config files as part of the first pass so rolling back may be a problem and moving forward seems unwise. I have only one x4500 but I have three x4540s running 11.2-STABLE (also installed from source) just fine. Anyone have any brilliant suggestions? I'm thinking of trying to compile 11.2-RELENG in /usr/src so I can try installing that kernel but that'll take several hours at least (it's an old box). nomad
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