Date: Fri, 30 Oct 2015 19:32:39 -0700 From: Adrian Chadd <adrian@freebsd.org> To: freebsd-current <freebsd-current@freebsd.org>, FreeBSD Net <freebsd-net@freebsd.org> Subject: panic in arptimer in r289937 Message-ID: <CAJ-VmonvVyTNuYv_as41yPCFdfR5T3FE45DP9MKAc-eyzXzPUg@mail.gmail.com>
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Hiya,
Here's a panic from arptimer:
(kgdb) bt
#0 doadump (textdump=3D0) at pcpu.h:221
#1 0xffffffff803666b6 in db_fncall (dummy1=3D<value optimized out>,
dummy2=3D<value optimized out>, dummy3=3D<value optimized out>,
dummy4=3D<value optimized out>) at
/usr/home/adrian/work/freebsd/head/src/sys/ddb/db_command.c:568
#2 0xffffffff8036614e in db_command (cmd_table=3D0x0) at
/usr/home/adrian/work/freebsd/head/src/sys/ddb/db_command.c:440
#3 0xffffffff80365ee4 in db_command_loop () at
/usr/home/adrian/work/freebsd/head/src/sys/ddb/db_command.c:493
#4 0xffffffff8036897b in db_trap (type=3D<value optimized out>, code=3D0)
at /usr/home/adrian/work/freebsd/head/src/sys/ddb/db_main.c:251
#5 0xffffffff8096c0f3 in kdb_trap (type=3D9, code=3D0, tf=3D<value
optimized out>) at
/usr/home/adrian/work/freebsd/head/src/sys/kern/subr_kdb.c:654
#6 0xffffffff80d34c81 in trap_fatal (frame=3D0xfffffe022815d7a0,
eva=3D<value optimized out>) at
/usr/home/adrian/work/freebsd/head/src/sys/amd64/amd64/trap.c:829
#7 0xffffffff80d34951 in trap (frame=3D<value optimized out>) at
/usr/home/adrian/work/freebsd/head/src/sys/amd64/amd64/trap.c:203
#8 0xffffffff80d149f7 in calltrap () at
/usr/home/adrian/work/freebsd/head/src/sys/amd64/amd64/exception.S:234
#9 0xffffffff8092c3fb in _rw_wlock_cookie (c=3D0xdeadc0dedeadc2de,
file=3D0xffffffff81211b1f
"/usr/home/adrian/work/freebsd/head/src/sys/netinet/if_ether.c",
line=3D205)
at /usr/home/adrian/work/freebsd/head/src/sys/kern/kern_rwlock.c:261
#10 0xffffffff80a2487f in arptimer (arg=3D0xfffff8005ecc4000) at
/usr/home/adrian/work/freebsd/head/src/sys/netinet/if_ether.c:205
#11 0xffffffff80944c24 in softclock_call_cc (c=3D0xfffff8005ecc40a8,
cc=3D0xffffffff81b2d480, direct=3D0) at
/usr/home/adrian/work/freebsd/head/src/sys/kern/kern_timeout.c:722
#12 0xffffffff80944f87 in softclock (arg=3D<value optimized out>) at
/usr/home/adrian/work/freebsd/head/src/sys/kern/kern_timeout.c:851
#13 0xffffffff808f7eb6 in intr_event_execute_handlers (p=3D<value
optimized out>, ie=3D0xfffff800035a6600) at
/usr/home/adrian/work/freebsd/head/src/sys/kern/kern_intr.c:1262
#14 0xffffffff808f8546 in ithread_loop (arg=3D0xfffff800032c47c0) at
/usr/home/adrian/work/freebsd/head/src/sys/kern/kern_intr.c:1275
#15 0xffffffff808f57a4 in fork_exit (callout=3D0xffffffff808f84a0
<ithread_loop>, arg=3D0xfffff800032c47c0, frame=3D0xfffffe022815dac0) at
/usr/home/adrian/work/freebsd/head/src/sys/kern/kern_fork.c:1011
#16 0xffffffff80d14f2e in fork_trampoline () at
/usr/home/adrian/work/freebsd/head/src/sys/amd64/amd64/exception.S:609
#17 0x0000000000000000 in ?? ()
Current language: auto; currently minimal
(kgdb) print *(struct llentry *)c_arg
$2 =3D {lle_next =3D {le_next =3D 0x0, le_prev =3D 0xfffff8005e867dc8},
r_l3addr =3D {addr4 =3D {s_addr =3D 16782508}, addr6 =3D {__u6_addr =3D
{__u6_addr8 =3D 0xfffff8005ecc4010 "=EF=BF=BD\024", __u6_addr16 =3D
0xfffff8005ecc4010,
__u6_addr32 =3D 0xfffff8005ecc4010}}}, ll_addr =3D {mac_aligned =3D
110869256150596, mac16 =3D 0xfffff8005ecc4020, mac8 =3D 0xfffff8005ecc4020
"D\036=EF=BF=BD=EF=BF=BD=EF=BF=BDd"}, spare0 =3D 0, spare1 =3D 0, lle_tbl =
=3D 0xfffff8005e867e00,
lle_head =3D 0xfffff8005e867dc8, lle_free =3D 0xffffffff80a2c5d0
<in_lltable_destroy_lle>, la_hold =3D 0x0, la_numheld =3D 0, la_expire =3D
2110, la_flags =3D 1, la_asked =3D 0, la_preempt =3D 5, ln_state =3D 0,
ln_router =3D 0, ln_ntick =3D 0,
lle_refcnt =3D 1, lle_chain =3D {le_next =3D 0x0, le_prev =3D 0x0},
lle_timer =3D {c_links =3D {le =3D {le_next =3D 0x0, le_prev =3D
0xffffffff81b2d588}, sle =3D {sle_next =3D 0x0}, tqe =3D {tqe_next =3D 0x0,
tqe_prev =3D 0xffffffff81b2d588}},
c_time =3D 9066299815445, c_precision =3D 322122525000, c_arg =3D
0xfffff8005ecc4000, c_func =3D 0xffffffff80a246e0 <arptimer>, c_lock =3D
0x0, c_flags =3D 0, c_iflags =3D 144, c_cpu =3D 0}, lle_lock =3D {lock_obje=
ct
=3D {
lo_name =3D 0xffffffff8120fbce "lle", lo_flags =3D 90374144, lo_data
=3D 0, lo_witness =3D 0xfffffe0000b53c80}, rw_lock =3D 1}}
..
(kgdb) print *((struct llentry *)c_arg)->lle_tbl
$4 =3D {llt_link =3D {sle_next =3D 0xdeadc0dedeadc0de}, llt_af =3D -5590382=
42,
llt_hsize =3D -559038242, lle_head =3D 0xdeadc0dedeadc0de, llt_ifp =3D
0xdeadc0dedeadc0de, llt_lookup =3D 0xdeadc0dedeadc0de,
llt_alloc_entry =3D 0xdeadc0dedeadc0de, llt_delete_entry =3D
0xdeadc0dedeadc0de, llt_prefix_free =3D 0xdeadc0dedeadc0de,
llt_dump_entry =3D 0xdeadc0dedeadc0de, llt_hash =3D 0xdeadc0dedeadc0de,
llt_match_prefix =3D 0xdeadc0dedeadc0de,
llt_free_entry =3D 0xdeadc0dedeadc0de, llt_foreach_entry =3D
0xdeadc0dedeadc0de, llt_link_entry =3D 0xdeadc0dedeadc0de,
llt_unlink_entry =3D 0xdeadc0dedeadc0de, llt_fill_sa_entry =3D
0xdeadc0dedeadc0de,
llt_free_tbl =3D 0xdeadc0dedeadc0de}
:(
Any ideas on where next to look?
-adrian
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