misc/181966: Kernel panic in ZFS I/O: solaris assert: BP_EQUAL(bp, &zio->io_bp_orig); zio.c line 2955 [9.2/amd64]

Charlie R 3zstbn24xn at snkmail.com
Mon Sep 9 15:20:00 UTC 2013

>Number:         181966
>Category:       misc
>Synopsis:       Kernel panic in ZFS I/O: solaris assert: BP_EQUAL(bp, &zio->io_bp_orig); zio.c line 2955 [9.2/amd64]
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Sep 09 15:20:00 UTC 2013
>Originator:     Charlie R
>Release:        9.2-RC2/amd64 (r254368)
FreeBSD localhost 9.2-RC2 FreeBSD 9.2-RC2 #0 r254368: Thu Aug 15 18:49:04 UTC 2013     root at bake.isc.freebsd.org:/usr/obj/usr/src/sys/GENERIC  amd64 # 8GB RAM
In the middle of normal read/write I/O, with a scrub running in the background, the ZFS layer caused the system to panic after triggering the following assertion:

panic: solaris assert: BP_EQUAL(bp, &zio->io_bp_orig), file: /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c, line: 2955
cpuid = 1
KDB: stack backtrace:
#0 0xffffffff80947966 at kdb_backtrace+0x66
#1 0xffffffff8090d98e at panic:0x1ce
#2 0xffffffff8196b12a at assfail+0x1a
#3 0xffffffff818a1280 at zio_done:0x120
#4 0xffffffff8189ee73 at zio_execute+0xc3
#5 0xffffffff80954534 at taskqueue_run_locked+0x74
#6 0xffffffff809554e6 at taskqueue_thread_loop+0x46
#7 0xffffffff808db65f at fork_exit+0x11f
#8 0xffffffff80cdc19e at fork_trampoline+0xe

This is on a RAID-Z3 twelve drive ZFS array with the individual providers using GELI.  It's an amd64 system (Intel Core 2, multiple cores).
Have a RAID-Z3 ZFS array on twelve drives over GELI.  Had a zpool scrub running in the background and some read/write I/O.


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