[Bug 199405] Panic trying to mount ZFS pool after 10.1 update

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=199405

--- Comment #2 from Chris Smith <drsmithy at gmail.com> ---
(In reply to Steven Hartland from comment #1)

Hi, 

Tried with 10-STABLE this morning and no luck, though it's a different line
reported in space_map.c.

root at freebsd:~ # cat /var/crash/core.txt.0
freebsd dumped core - see /var/crash/vmcore.0

Tue Apr 14 20:58:16 UTC 2015

FreeBSD freebsd 10.1-STABLE FreeBSD 10.1-STABLE #0 r281528: Tue Apr 14 20:40:23
UTC 2015     root at freebsd:/usr/obj/usr/src/sys/GENERIC  amd64

panic: solaris assert: range_tree_space(rt) == space (0x6b34cb000 ==
0x6b3525000), file:
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/space_map.c,
line: 131

GNU gdb 6.1.1 [FreeBSD]
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This GDB was configured as "amd64-marcel-freebsd"...

Unread portion of the kernel message buffer:
panic: solaris assert: range_tree_space(rt) == space (0x6b34cb000 ==
0x6b3525000), file:
/usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/space_map.c,
line: 131
cpuid = 1
KDB: stack backtrace:
#0 0xffffffff80973b90 at kdb_backtrace+0x60
#1 0xffffffff80937c15 at panic+0x155
#2 0xffffffff81c0922f at assfail3+0x2f
#3 0xffffffff81a8c5a5 at space_map_load+0x3d5
#4 0xffffffff81a721be at metaslab_load+0x2e
#5 0xffffffff81a73da7 at metaslab_alloc+0x777
#6 0xffffffff81ab4166 at zio_dva_allocate+0x76
#7 0xffffffff81ab1542 at zio_execute+0x162
#8 0xffffffff80981f75 at taskqueue_run_locked+0xe5
#9 0xffffffff80982a08 at taskqueue_thread_loop+0xa8
#10 0xffffffff80906d6a at fork_exit+0x9a
#11 0xffffffff80d1d5de at fork_trampoline+0xe
Uptime: 54s
Dumping 408 out of 8167 MB:..4%..12%..24%..32%..44%..51%..63%..71%..83%..91%



Will compile -CURRENT and try that tonight.

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