[Bug 267225] Panic in pcpu

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 20 Oct 2022 15:22:00 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=267225

Mitchell Horne <mhorne@freebsd.org> changed:

           What    |Removed                     |Added
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                 CC|                            |mhorne@freebsd.org

--- Comment #2 from Mitchell Horne <mhorne@freebsd.org> ---
Hello,

I strongly suspect you have grabbed the wrong backtrace. The backtrace should
contain entries for the exception handler and panic-handling code, e.g. an
entry for vpanic().

When examining a crash dump, kgdb creates one thread for each running CPU. The
command "info threads" will show the list, and you can use the "thread" command
to switch to another thread's context.

Does the panic occur during boot-time or runtime? If you can provide the exact
panic message from the kernel log, e.g. "panic: Fatal page fault at...", that
would be helpful.

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