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Date:      Sun, 20 May 2018 14:43:06 +0000
From:      bugzilla-noreply@freebsd.org
To:        fs@FreeBSD.org
Subject:   [Bug 227784] zfs: Fatal trap 9: general protection fault while in kernel mode on shutdown
Message-ID:  <bug-227784-3630-d7ryIpQ4h3@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-227784-3630@https.bugs.freebsd.org/bugzilla/>
References:  <bug-227784-3630@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D227784

--- Comment #9 from Eitan Adler <eadler@FreeBSD.org> ---
The crash is from ports kgdb and is being tracked at bug #228006.

/usr/libexec/kgdb on "shutdown-crash-3" shows
=E2=88=B4/usr/libexec/kgdb kernel/kernel vmcore.5
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain condition=
s.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "amd64-marcel-freebsd".../home/eax/.gdbinit:4: E=
rror
in sourced command file:
No symbol table is loaded.  Use the "file" command.
BFD: /home/eax/crashes/shutdown-crash-3/kernel/kernel: invalid relocation t=
ype
37
BFD: BFD 2.17.50 [FreeBSD] 2007-07-03 assertion fail
/usr/src/gnu/usr.bin/binutils/libbfd/../../../../contrib/binutils/bfd/elf64=
-x86-64.c:276
BFD: /home/eax/crashes/shutdown-crash-3/kernel/kernel: invalid relocation t=
ype
37
BFD: BFD 2.17.50 [FreeBSD] 2007-07-03 assertion fail
/usr/src/gnu/usr.bin/binutils/libbfd/../../../../contrib/binutils/bfd/elf64=
-x86-64.c:276

Cannot access memory at address 0x0
(kgdb) file kernel/kernel.debug
Load new symbol table from "kernel/kernel.debug"? (y or n) y
Reading symbols from kernel/kernel.debug...done.
(kgdb) bt
#0  0x0000000000000000 in ?? ()
Cannot access memory at address 0x0

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