Loaded symbols for /boot/kernel/opensolaris.ko.symbols
Reading symbols from /boot/kernel/if_tap.ko.symbols...done.
Loaded symbols for /boot/kernel/if_tap.ko.symbols
Reading symbols from /boot/kernel/if_bridge.ko.symbols...done.
Loaded symbols for /boot/kernel/if_bridge.ko.symbols
Reading symbols from /boot/kernel/bridgestp.ko.symbols...done.
Loaded symbols for /boot/kernel/bridgestp.ko.symbols
Reading symbols from /boot/kernel/aio.ko.symbols...done.
Loaded symbols for /boot/kernel/aio.ko.symbols
Reading symbols from /boot/kernel/amdtemp.ko.symbols...done.
Loaded symbols for /boot/kernel/amdtemp.ko.symbols
Reading symbols from /boot/kernel/cc_htcp.ko.symbols...done.
Loaded symbols for /boot/kernel/cc_htcp.ko.symbols
Reading symbols from /boot/kernel/linprocfs.ko.symbols...done.
Loaded symbols for /boot/kernel/linprocfs.ko.symbols
Reading symbols from /boot/kernel/linux.ko.symbols...done.
Loaded symbols for /boot/kernel/linux.ko.symbols
Reading symbols from /boot/kernel/uhid.ko.symbols...done.
Loaded symbols for /boot/kernel/uhid.ko.symbols
Reading symbols from /boot/kernel/pflog.ko.symbols...done.
Loaded symbols for /boot/kernel/pflog.ko.symbols
Reading symbols from /boot/kernel/pf.ko.symbols...done.
Loaded symbols for /boot/kernel/pf.ko.symbols
Reading symbols from /boot/kernel/nullfs.ko.symbols...done.
Loaded symbols for /boot/kernel/nullfs.ko.symbols
Reading symbols from /boot/kernel/tmpfs.ko.symbols...done.
Loaded symbols for /boot/kernel/tmpfs.ko.symbols
Reading symbols from /boot/kernel/fdescfs.ko.symbols...done.
Loaded symbols for /boot/kernel/fdescfs.ko.symbols
Reading symbols from /boot/kernel/linsysfs.ko.symbols...done.
Loaded symbols for /boot/kernel/linsysfs.ko.symbols
#0  doadump (textdump=<value optimized out>) at pcpu.h:219
219     pcpu.h: No such file or directory.
        in pcpu.h
(kgdb) #0  doadump (textdump=<value optimized out>) at pcpu.h:219
#1  0xffffffff808af5f0 in kern_reboot (howto=260)
    at /usr/src/sys/kern/kern_shutdown.c:447
#2  0xffffffff808af9b4 in panic (fmt=<value optimized out>)
    at /usr/src/sys/kern/kern_shutdown.c:754
#3  0xffffffff81a2c202 in assfail (a=<value optimized out>,
    f=<value optimized out>, l=<value optimized out>)
    at /usr/src/sys/modules/opensolaris/../../cddl/compat/opensolaris/kern/opensolaris_cmn_err.c:81
#4  0xffffffff8189d8a4 in zfs_unregister_callbacks (zfsvfs=0xfffff80168b91000)
    at /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c:1275
#5  0xffffffff8189ddc1 in zfsvfs_teardown (zfsvfs=0xfffff80168b91000,
    unmounting=0)
    at /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vfsops.c:1911
#6  0xffffffff81892023 in zfs_ioc_rollback (
    fsname=0xfffffe000519f000 "server/poudriere/jails/10x64-default-ref/04",
    args=0x0, outnvl=0xfffff8024d8af020)
    at /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c:3570
#7  0xffffffff818909b2 in zfsdev_ioctl (dev=<value optimized out>,
    zcmd=<value optimized out>, arg=<value optimized out>,
    flag=<value optimized out>, td=<value optimized out>)
    at /usr/src/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_ioctl.c:5927
#8  0xffffffff807ac1df in devfs_ioctl_f (fp=0xfffff801d8d96460,
    com=3222821401, data=0xfffff803b1ded3c0, cred=<value optimized out>,
    td=0xfffff8021aaf7920) at /usr/src/sys/fs/devfs/devfs_vnops.c:757
#9  0xffffffff808fdfae in kern_ioctl (td=0xfffff8021aaf7920,
    fd=<value optimized out>, com=0) at file.h:319
#10 0xffffffff808fdd2f in sys_ioctl (td=0xfffff8021aaf7920,
    uap=0xfffffe046d0c2b80) at /usr/src/sys/kern/sys_generic.c:702
#11 0xffffffff80c8f127 in amd64_syscall (td=0xfffff8021aaf7920, traced=0)
    at subr_syscall.c:134
#12 0xffffffff80c7581b in Xfast_syscall ()
    at /usr/src/sys/amd64/amd64/exception.S:391
#13 0x00000008019e408a in ?? ()
Previous frame inner to this frame (corrupt stack?)
Current language:  auto; currently minimal
(kgdb)