Hello,
With curiosity, today I tried to enable ipv6 in avahi-daemon.conf (I
don't really understand what avahi-daemon does, though) and start the
daemon using rc.d script, then I hit a kernel panic. I updated the
tree and build world yesterday before the trial (because I wanted
Intel HDA support, but it was another story).
# uname -a
FreeBSD elvenbow.cc.kyushu-u.ac.jp 6.2-STABLE FreeBSD 6.2-STABLE #0: Wed May 23
20:27:20 JST 2007
root@elvenbow.cc.kyushu-u.ac.jp:/usr/obj/usr/src/sys/ELVENBOW amd64
The output of kgdb with stack backtrace follows:
------
# kgdb /usr/obj/usr/src/sys/ELVENBOW/kernel.debug vmcore.3
kgdb: kvm_nlist(_stopped_cpus):
kgdb: kvm_nlist(_stoppcbs):
[GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so:
Undefined symbol "ps_pglobal_lookup"]
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for
details.
This GDB was configured as "amd64-marcel-freebsd".
Unread portion of the kernel message buffer:
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0xffffff015057d198
fault code = supervisor read data, page not present
instruction pointer = 0x8:0xffffffff80508175
stack pointer = 0x10:0xffffffffb75af7c0
frame pointer = 0x10:0xffffff007857d100
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 2670 (avahi-daemon)
trap number = 12
panic: page fault
Uptime: 14m43s
Dumping 2045 MB (2 chunks)
chunk 0: 1MB (159 pages) ... ok
chunk 1: 2046MB (523567 pages) 2030 2014 1998 1982 1966 1950 1934 1918 1902
1886 1870 1854 1838 1822 1806 1790 1774 1758 1742 1726 1710 1694 1678 1662 1646
1630 1614 1598 1582 1566 1550 1534 1518 1502 1486 1470 1454 1438 1422 1406 1390
1374 1358 1342 1326 1310 1294 1278 1262 1246 1230 1214 1198 1182 1166 1150 1134
1118 1102 1086 1070 1054 1038 1022 1006 990 974 958 942 926 910 894 878 862 846
830 814 798 782 766 750 734 718 702 686 670 654 638 622 606 590 574 558 542 526
510 494 478 462 446 430 414 398 382 366 350 334 318 302 286 270 254 238 222 206
190 174 158 142 126 110 94 78 62 46 30 14
#0 doadump () at pcpu.h:172
172 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) where
#0 doadump () at pcpu.h:172
#1 0x0000000000000004 in ?? ()
#2 0xffffffff8041da53 in boot (howto=260)
at /usr/src/sys/kern/kern_shutdown.c:409
#3 0xffffffff8041e056 in panic (fmt=0xffffff0059884980 "\bJ ")
at /usr/src/sys/kern/kern_shutdown.c:565
#4 0xffffffff8063ecd1 in trap_fatal (frame=0xffffff0059884980,
eva=18446742975690328584) at /usr/src/sys/amd64/amd64/trap.c:668
#5 0xffffffff8063f042 in trap_pfault (frame=0xffffffffb75af710, usermode=0)
at /usr/src/sys/amd64/amd64/trap.c:580
#6 0xffffffff8063f2f3 in trap (frame {tf_rdi = -1093868727912, tf_rsi =
3623878728, tf_rdx = -1097492606640, tf_rcx = 671088564, tf_r8 = 3623878728,
tf_r9 = 0, tf_rax = 3623878725, tf_rbx = -1093868727912, tf_rbp =
-1097492606720, tf_r10 = 0, tf_r11 = 1, tf_r12 = -1218774912, tf_r13 = 17,
tf_r14 = 0, tf_r15 = -1097492606720, tf_trapno = 12, tf_addr = -1093868727912,
tf_flags = -2142209856, tf_err = 0, tf_rip = -2142207627, tf_cs = 8, tf_rflags =
66070, tf_rsp = -1218775088, tf_ss = 16})
at /usr/src/sys/amd64/amd64/trap.c:353
#7 0xffffffff806297bb in calltrap ()
at /usr/src/sys/amd64/amd64/exception.S:168
#8 0xffffffff80508175 in ip6_setpktopts (control=0xffffff007857d100,
opt=0xffffffffb75af880, stickyopt=0xffffff015057d198, priv=0, uproto=17)
at /usr/src/sys/netinet6/ip6_output.c:2992
#9 0xffffffff80517911 in udp6_output (in6p=0xffffff005bb03980,
m=0xffffff007853c800, addr6=0xffffffffb75af880,
control=0xffffff007857d100, td=0xffffff0059884980)
at /usr/src/sys/netinet6/udp6_output.c:170
#10 0xffffffff80519607 in udp6_send (so=0xffffff00529df000, flags=0,
m=0xffffff007853c800, addr=0xffffff0001031c20, control=0xffffff007857d100,
td=0xffffff0059884980) at /usr/src/sys/netinet6/udp6_usrreq.c:794
#11 0xffffffff80461f0c in sosend (so=0xffffff00529df000,
addr=0xffffff0001031c20, uio=0xffffffffb75afa70, top=0xffffff007853c800,
control=0xffffff007857d100, flags=0, td=0xffffff0059884980)
at /usr/src/sys/kern/uipc_socket.c:836
#12 0xffffffff80469968 in kern_sendit (td=0xffffff0059884980, s=16,
mp=0xffffffffb75afb30, flags=0, control=0xffffff007857d100, segflg=52)
at /usr/src/sys/kern/uipc_syscalls.c:772
#13 0xffffffff8046ad57 in sendit (td=0xffffff0059884980, s=16,
mp=0xffffffffb75afb30, flags=0) at /usr/src/sys/kern/uipc_syscalls.c:712
#14 0xffffffff8046af56 in sendmsg (td=0xffffff0059884980,
uap=0xffffffffb75afbc0) at /usr/src/sys/kern/uipc_syscalls.c:920
#15 0xffffffff8063fb31 in syscall (frame {tf_rdi = 16, tf_rsi =
140737488348864, tf_rdx = 0, tf_rcx = 0, tf_r8 = 0, tf_r9 = 0, tf_rax = 28,
tf_rbx = 16, tf_rbp = 140737488348864, tf_r10 = 0, tf_r11 = 582, tf_r12 = 0,
tf_r13 = 5436220, tf_r14 = 1, tf_r15 = 140737488348912, tf_trapno = 12, tf_addr
= 5537800, tf_flags = 12, tf_err = 2, tf_rip = 34374036316, tf_cs = 43,
tf_rflags = 518, tf_rsp = 140737488348744, tf_ss = 35})
at /usr/src/sys/amd64/amd64/trap.c:803
#16 0xffffffff80629958 in Xfast_syscall ()
at /usr/src/sys/amd64/amd64/exception.S:270
#17 0x0000000800da2b5c in ?? ()
Previous frame inner to this frame (corrupt stack?)
------
Please request additional information if needed...
Regards,
--
Yoshiaki Kasahara
Research Institute for Information Technology, Kyushu University
kasahara@nc.kyushu-u.ac.jp