(kgdb) thread 134
[Switching to thread 134 (Thread 100212)]#0 sched_switch (td=0xffffff00018966a0, newtd=0xffffffff8047c428, flags=Variable "flags" is not available.
) at /usr/src/sys/kern/sched_ule.c:1904
1904 cpuid = PCPU_GET(cpuid);
(kgdb) bt
#0 sched_switch (td=0xffffff00018966a0, newtd=0xffffffff8047c428, flags=Variable "flags" is not available.
) at /usr/src/sys/kern/sched_ule.c:1904
#1 0x000000000000004c in ?? ()
#2 0xffffffff80465dca in mi_switch (flags=25781920, newtd=0x1) at /usr/src/sys/kern/kern_synch.c:442
#3 0xffffffff8048f560 in sleepq_timedwait (wchan=0xffffffffaec0c878) at /usr/src/sys/kern/subr_sleepqueue.c:577
#4 0xffffffff8046631d in _sleep (ident=0xffffffffaec0c878, lock=0xffffffff809e68a0, priority=272076800, wmesg=0xffffffff8079242b "devdrn", timo=100)
at /usr/src/sys/kern/kern_synch.c:224
#5 0xffffffff8042c5ec in destroy_devl (dev=0xffffff0006996200) at /usr/src/sys/kern/kern_conf.c:757
#6 0xffffffff8042c831 in destroy_dev (dev=0xffffff0006996200) at /usr/src/sys/kern/kern_conf.c:789
#7 0xffffffffaeb33e33 in ?? ()
#8 0xffffff00018966a0 in ?? ()
#9 0xffffff00018966a0 in ?? ()
#10 0x0000000300002000 in ?? ()
#11 0xffffff0006996200 in ?? ()
#12 0x00000000000000fd in ?? ()
#13 0xffffffffaec0c900 in ?? ()
#14 0xffffff0010b6f9b0 in ?? ()
#15 0xffffffff803f48e4 in devfs_close (ap=0xffffffffaec0c960) at /usr/src/sys/fs/devfs/devfs_vnops.c:372
#16 0xffffffff804e7402 in vn_close (vp=0xffffff0010b6f9b0, flags=3, file_cred=0xffffff00017fb500, td=0xffffff00018966a0) at vnode_if.h:228
#17 0xffffffff804e74aa in vn_closefile (fp=0xffffff001024eca8, td=0xffffff00018966a0) at /usr/src/sys/kern/vfs_vnops.c:868
#18 0xffffffff80430ac1 in fdrop (fp=0xffffff001024eca8, td=0xffffff00018966a0) at file.h:297
#19 0xffffffff80431f46 in closef (fp=0xffffff001024eca8, td=0xffffff00018966a0) at /usr/src/sys/kern/kern_descrip.c:1958
#20 0xffffffff80432767 in kern_close (td=0xffffff00018966a0, fd=Variable "fd" is not available.
) at /usr/src/sys/kern/kern_descrip.c:1054
#21 0xffffffff806e0ae7 in syscall (frame=0xffffffffaec0cc70) at /usr/src/sys/amd64/amd64/trap.c:852
---Type <return> to continue, or q <return> to quit---
#22 0xffffffff806c700b in Xfast_syscall () at /usr/src/sys/amd64/amd64/exception.S:290
#23 0x0000000800e186fc in ?? ()
(kgdb) thread 135
[Switching to thread 135 (Thread 100210)]#0 sched_switch (td=0xffffff0010c21350, newtd=0xffffffff8047c428, flags=Variable "flags" is not available.
) at /usr/src/sys/kern/sched_ule.c:1904
1904 cpuid = PCPU_GET(cpuid);
(kgdb) bt
#0 sched_switch (td=0xffffff0010c21350, newtd=0xffffffff8047c428, flags=Variable "flags" is not available.
) at /usr/src/sys/kern/sched_ule.c:1904
#1 0x0000000100000000 in ?? ()
#2 0xffffffff80465dca in mi_switch (flags=281154384, newtd=0x1) at /usr/src/sys/kern/kern_synch.c:442
#3 0xffffffff8046aca3 in thread_suspend_switch (td=0xffffff0010c21350) at /usr/src/sys/kern/kern_thread.c:863
#4 0xffffffff8046c3b2 in thread_single (mode=1) at /usr/src/sys/kern/kern_thread.c:711
#5 0xffffffff8043dfa4 in exit1 (td=0xffffff0010c21350, rv=9) at /usr/src/sys/kern/kern_exit.c:164
#6 0xffffffff8045fb81 in sigexit (td=0xffffff0010c21350, sig=0) at /usr/src/sys/kern/kern_sig.c:2876
#7 0xffffffff80461900 in postsig (sig=9) at /usr/src/sys/kern/kern_sig.c:2748
#8 0xffffffff80490f2c in ast (framep=0xffffffffaeedbc70) at /usr/src/sys/kern/subr_trap.c:250
#9 0xffffffff806c79e9 in doreti_ast () at /usr/src/sys/amd64/amd64/exception.S:486
#10 0x0000000801009bb0 in ?? ()
#11 0x0000000000000005 in ?? ()
#12 0x0000000000000000 in ?? ()
#13 0x0000000000000000 in ?? ()
#14 0x0000000000000000 in ?? ()
#15 0x8080808080808080 in ?? ()
#16 0x00000000000001c6 in ?? ()
#17 0x0000000801009bb0 in ?? ()
#18 0x0000000801208120 in ?? ()