Date: Thu, 15 May 2014 18:44:37 +0000 From: Radim Kolar <hsn@sendmail.cz> To: Steven Hartland <killing@multiplay.co.uk>, "freebsd-fs@FreeBSD.org" <freebsd-fs@freebsd.org>, "bug-followup@freebsd.org" <bug-followup@freebsd.org> Subject: RE: kern/189355: zfs panic on 10-stable Message-ID: <BLU179-W6204A3A2EA88E7710CA8E4AD360@phx.gbl> In-Reply-To: <BLU179-W50D5CEAEF125A4EA43B865AD360@phx.gbl> References: <201405151240.s4FCe1Hw087808@freefall.freebsd.org>, <14010473114D42CC92756838300EEE64@multiplay.co.uk>, <BLU179-W70FBAE0611B8237808B4F7AD360@phx.gbl>, <BLU179-W50D5CEAEF125A4EA43B865AD360@phx.gbl>
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crash stack from patched kernel
#7 0xc092336c in calltrap () at /usr/src/sys/i386/i386/exception.s:170
#8 0xc069345d in kdb_enter (why=0xc09a7ef8 "panic",
msg=<value optimized out>) at cpufunc.h:71
#9 0xc065710f in panic (fmt=<value optimized out>)
at /usr/src/sys/kern/kern_shutdown.c:823
#10 0xc0939acb in dblfault_handler () at /usr/src/sys/i386/i386/trap.c:1072
#11 0xc0cb8187 in vdev_queue_io_to_issue (vq=0xc46ab300)
at /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_queue.c:489
#12 0xc0cb8119 in vdev_queue_io (zio=0xc486c5b8)
at /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_queue.c:768
#13 0xc0cd8704 in zio_vdev_io_start (ziop=<value optimized out>)
at /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:2617
#14 0xc0cd4e28 in zio_execute (zio=0xc486c5b8)
at /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:1357
#15 0xc0cb7604 in vdev_mirror_io_start (zio=0xc476f000)
at /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_mirror.c:284
#16 0xc0cd854f in zio_vdev_io_start (ziop=<value optimized out>)
at /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:2537
#17 0xc0cd4e28 in zio_execute (zio=0xc476f000)
at /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zio.c:1357
#18 0xc0ca0ddc in spa_load_verify_cb (zilog=0x0, bp=<value optimized out>,
dnp=0xc4b0fa00, arg=<value optimized out>)
at /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c:1887
#19 0xc0c5eb79 in traverse_visitbp (td=0xd93f1120, dnp=0xc46ab300,
bp=0xc4b18100, zb=0xd93f06b0)
at /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_traverse.c:272
#20 0xc0c5edb0 in traverse_visitbp (td=0xd93f1120, dnp=0xc4b0fa00, bp=0x80,
zb=0xd93f07a8)
at /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_traverse.c:306
failing line 489 is:
if (avl_numnodes(&vq->vq_active_tree) >= zfs_vdev_max_active)
return (ZIO_PRIORITY_NUM_QUEUEABLE);
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