10.2-stable, zvol + ctld = crash

[mxb]

Hey,
just got panic and reboot:


Dec 10 17:22:32 nas kernel: panic: solaris assert: start < end, file: /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/trim_map.c, line: 219
Dec 10 17:22:32 nas kernel: cpuid = 6
Dec 10 17:22:32 nas kernel: KDB: stack backtrace:
Dec 10 17:22:32 nas kernel: #0 0xffffffff80981be0 at kdb_backtrace+0x60
Dec 10 17:22:32 nas kernel: #1 0xffffffff80945716 at vpanic+0x126
Dec 10 17:22:32 nas kernel: #2 0xffffffff809455e3 at panic+0x43
Dec 10 17:22:32 nas kernel: #3 0xffffffff81c931fd at assfail+0x1d
Dec 10 17:22:32 nas kernel: #4 0xffffffff81a6cd01 at trim_map_segment_add+0x41
Dec 10 17:22:32 nas kernel: #5 0xffffffff81a6c1ef at trim_map_free_locked+0x9f
Dec 10 17:22:32 nas kernel: #6 0xffffffff81a6c128 at trim_map_free+0x98
Dec 10 17:22:32 nas kernel: #7 0xffffffff819b8af0 at arc_release+0x100
Dec 10 17:22:32 nas kernel: #8 0xffffffff819c1b27 at dbuf_dirty+0x357
Dec 10 17:22:32 nas kernel: #9 0xffffffff819c90dc at dmu_write+0xfc
Dec 10 17:22:32 nas kernel: #10 0xffffffff81a6900f at zvol_strategy+0x23f
Dec 10 17:22:32 nas kernel: #11 0xffffffff81a67531 at zvol_geom_start+0x51
Dec 10 17:22:32 nas kernel: #12 0xffffffff808a551e at g_io_request+0x38e
Dec 10 17:22:32 nas kernel: #13 0xffffffff81e34d5d at ctl_be_block_dispatch_dev+0x20d
Dec 10 17:22:32 nas kernel: #14 0xffffffff81e356fd at ctl_be_block_worker+0x5d
Dec 10 17:22:32 nas kernel: #15 0xffffffff809901d5 at taskqueue_run_locked+0xe5
Dec 10 17:22:32 nas kernel: #16 0xffffffff80990c68 at taskqueue_thread_loop+0xa8
Dec 10 17:22:32 nas kernel: #17 0xffffffff8090f07a at fork_exit+0x9a


This is FreeBSD 10.2-STABLE #0 r289883: Sat Oct 24 23:14:33 CEST 2015

Any ideas?

Several ZVOLs are exported to ESXi 6.x.
LUN 2 was added, iSCSI configured on ESX and initiated, ctld restart.

root at nas:~ # cat /etc/ctl.conf

portal-group pg0 {
	discovery-auth-group no-authentication
	listen 0.0.0.0
}

target iqn.2015-03.com.unixconn:target0 {
	auth-group no-authentication
	portal-group pg0

	lun 0 {
		path /dev/zvol/zfspool/iscsi0
		size 250G
	}

	lun 1 {
		path /dev/zvol/zfspool/grey_timemachine0
		size 500G
	}

  lun 2 {
    path /dev/zvol/zfspool/vcenter
    size 200G
  }

}

//mxb