Date: Wed, 11 Apr 2018 04:39:58 -0700 From: David Wolfskill <david@catwhisker.org> To: current@freebsd.org Subject: panic: mtx_lock() of spin mutex (null) @ /usr/src/sys/net/iflib.c:3716 Message-ID: <20180411113958.GE1134@albert.catwhisker.org>
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This was running:
FreeBSD g1-215.catwhisker.org 12.0-CURRENT FreeBSD 12.0-CURRENT #156 r3323=
99M/332400:1200061: Wed Apr 11 04:17:45 PDT 2018 root@g1-215.catwhisker=
=2Eorg:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY amd64
during boot, after updating from:
FreeBSD g1-215.catwhisker.org 12.0-CURRENT FreeBSD 12.0-CURRENT #155 r3323=
54M/332357:1200061: Tue Apr 10 04:00:41 PDT 2018 root@g1-215.catwhisker=
=2Eorg:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY amd64
(My build machine, which uses an re((4) NIC, did not encounter the issue.)
It appears that r332389 is implicated.
=2E..
Unread portion of the kernel message buffer:
__curthread () at ./machine/pcpu.h:230
230 __asm("movq %%gs:%1,%0" : "=3Dr" (td)
(kgdb) #0 __curthread () at ./machine/pcpu.h:230
#1 doadump (textdump=3D3) at /usr/src/sys/kern/kern_shutdown.c:361
#2 0xffffffff80433f4c in db_fncall_generic (addr=3D<optimized out>,=20
rv=3D<optimized out>, nargs=3D<optimized out>, args=3D<optimized out>)
at /usr/src/sys/ddb/db_command.c:609
#3 db_fncall (dummy1=3D<optimized out>, dummy2=3D<optimized out>,=20
dummy3=3D<optimized out>, dummy4=3D<optimized out>)
at /usr/src/sys/ddb/db_command.c:657
#4 0xffffffff80433a99 in db_command (last_cmdp=3D<optimized out>,=20
cmd_table=3D<optimized out>, dopager=3D<optimized out>)
at /usr/src/sys/ddb/db_command.c:481
#5 0xffffffff80433814 in db_command_loop ()
at /usr/src/sys/ddb/db_command.c:534
#6 0xffffffff80436a3f in db_trap (type=3D<optimized out>, code=3D<optimize=
d out>)
at /usr/src/sys/ddb/db_main.c:250
#7 0xffffffff80b753e3 in kdb_trap (type=3D3, code=3D-61456, tf=3D<optimize=
d out>)
at /usr/src/sys/kern/subr_kdb.c:697
#8 0xffffffff80f7eaa8 in trap (frame=3D0xfffffe00004377a0)
at /usr/src/sys/amd64/amd64/trap.c:548
#9 <signal handler called>
#10 kdb_enter (why=3D0xffffffff811df9d4 "panic", msg=3D<optimized out>)
at /usr/src/sys/kern/subr_kdb.c:479
#11 0xffffffff80b2feda in vpanic (fmt=3D<optimized out>, ap=3D0xfffffe00004=
37910)
at /usr/src/sys/kern/kern_shutdown.c:826
#12 0xffffffff80b2fca0 in kassert_panic (
fmt=3D0xffffffff811dadca "mtx_lock() of spin mutex %s @ %s:%d")
at /usr/src/sys/kern/kern_shutdown.c:723
#13 0xffffffff80b0ec93 in __mtx_lock_flags (c=3D0xfffff80008c85d88, opts=3D=
0,=20
file=3D0xffffffff81113c90 "/usr/src/sys/net/iflib.c", line=3D<optimized=
out>)
at /usr/src/sys/kern/kern_mutex.c:246
#14 0xffffffff80c466e1 in _task_fn_admin (context=3D0xfffff80008c85c00)
at /usr/src/sys/net/iflib.c:3716
#15 0xffffffff80b73849 in gtaskqueue_run_locked (queue=3D0xfffff80008489500)
at /usr/src/sys/kern/subr_gtaskqueue.c:331
#16 0xffffffff80b735c8 in gtaskqueue_thread_loop (arg=3D<optimized out>)
at /usr/src/sys/kern/subr_gtaskqueue.c:506
#17 0xffffffff80af0064 in fork_exit (
callout=3D0xffffffff80b73540 <gtaskqueue_thread_loop>,=20
arg=3D0xfffffe0844223008, frame=3D0xfffffe0000437ac0)
at /usr/src/sys/kern/kern_fork.c:1039
#18 <signal handler called>
(kgdb)=20
If the dump would be useful, I can put it up for access.
Peace,
david
--=20
David H. Wolfskill david@catwhisker.org
Well, what did you EXPECT from Trump? He has a history of breaking promise=
s.
See http://www.catwhisker.org/~david/publickey.gpg for my public key.
--afaOoWBOIwPZGAW2
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