[Bug 194015] New: Fatal double fault on mount root from zfs

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194015

            Bug ID: 194015
           Summary: Fatal double fault on mount root from zfs
           Product: Base System
           Version: 10.1-BETA3
          Hardware: i386
                OS: Any
            Status: Needs Triage
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: KOT at MATPOCKuH.Ru

Created attachment 147805
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=147805&action=edit
panic log

After system hangs I rebooted system and panic on mount root with Fatal double
fault.
OCR of stack trace attached, but it have some OCR specific troubles.
Original screenshots available there:
http://kot.spb.ru/tmp/panic/

I also got same problem on another i386 system with 10.0-RELEASE.
Problem occurs only after unclean shutdown.
Screen photos for two different panics also available on this link.

Problem exists ONLY on i386 systems.

Problem solves after booting amd64 kernel and after "clean" reboot.

My kernel build with gdb support, I can try to collect some additional
information.

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