On 2015/10/30 10:32, Dag-Erling Smørgrav wrote: > Can those of you who are experiencing this bug on 10 please try to build > and run a kernel from head@287591 or newer (with your 10 userland) and > report back? > > # svnlite co svn://svn.freebsd.org/base/head@287591 /tmp/head > # cd /tmp/head > # make buildkernel KERNCONF=GENERIC > # make installkernel KERNCONF=GENERIC KODIR=/boot/head > # nextboot -k head > # shutdown -r now > > DES >
Hi, Dag-Erling,
I'm not able to reboot machines where I've seen this crash right now,
but I can report:
* Can't reproduce the problem in a VirtualBox VM running
10.2-RELEASE-p6 amd64.
* But I can get a back trace after compiling the 10.2-RELEASE-p6
sources and a core dump from one of the machines where the problem happens:
(gdb) bt full
#0 mutex_lock_common (m=0x801c33100, abstime=0x0, cvattach=0) at
atomic.h:143
No locals.
#1 0x0000000801263557 in __sfp () at /usr/src/lib/libc/stdio/findfp.c:148
n = <value optimized out>
fp = <value optimized out>
g = <value optimized out>
#2 0x00000008012470ab in _BIG5_mbrtowc (pwc=<value optimized out>,
s=<value optimized out>, n=Cannot access memory at address 0x1
) at /usr/src/lib/libc/locale/big5.c:113
wc = <value optimized out>
#3 0x0000000801211cc0 in serv_unmarshal_func (buffer=0x801c33100 "",
buffer_size=0, retval=0x8014c6130, ap=0x18b95,
cache_mdata=<value optimized out>)
at /usr/src/lib/libc/net/getservent.c:1071
serv = (struct servent *) 0x0
orig_buf = 0x802031040 "0aL\001\b"
orig_buf_size = <value optimized out>
ret_errno = <value optimized out>
p = <value optimized out>
alias = <value optimized out>
#4 0x0000000801234cff in _nsdispatch (retval=0x7fffdfdfca70,
disp_tab=0x801498680, database=0x80126de7c "\"%s\", \"%s\")...\n",
method_name=0x80126de24 ".conf", defaults=0x2)
at /usr/src/lib/libc/net/nsdispatch.c:541
ap = {{gp_offset = 48, fp_offset = 48,
overflow_arg_area = 0x7fffdfdfca38, reg_save_area = 0x7fffdfdfc870}}
mdata = (void *) 0x80126ddfc
cache_data = {key = 0x17d0 <Address 0x17d0 out of bounds>,
key_size = 34369025376, info = 0x7fffdfdfc9e0}
isthreaded = 1
serrno = 22
result = <value optimized out>
st = <value optimized out>
fb_method = <value optimized out>
srclist = <value optimized out>
srclistsize = <value optimized out>
cache_flag = <value optimized out>
method = <value optimized out>
saved_depth = <value optimized out>
#5 0x0000000801213121 in nis_setservent (result=0x801c33100,
mdata=<value optimized out>, ap=0x0)
at /usr/src/lib/libc/net/getservent.c:812
st = (struct nis_state *) 0x0
st = (struct nis_state *) 0x0
st = (struct nis_state *) 0x0
st = (struct nis_state *) 0x0
rv = <value optimized out>
#6 0x0000000801213029 in files_setservent (retval=0x801c33100,
mdata=<value optimized out>, ap=<value optimized out>)
at /usr/src/lib/libc/net/getservent.c:451
st = (struct files_state *) 0x1
st = (struct files_state *) 0x1
st = (struct files_state *) 0x1
st = (struct files_state *) 0x1
st = (struct files_state *) 0x1
st = (struct files_state *) 0x1
st = (struct files_state *) 0x1
rv = <value optimized out>
f = 0
#7 0x000000080120f373 in _dns_getaddrinfo (rv=<value optimized out>,
---Type <return> to continue, or q <return> to quit---
cb_data=<value optimized out>, ap=<value optimized out>)
at /usr/src/lib/libc/net/getaddrinfo.c:2266
sentinel = {ai_flags = 3, ai_family = 0, ai_socktype = 21716848,
ai_protocol = 8, ai_addrlen = 21795400, ai_canonname = 0x8014c6130 "",
ai_addr = 0x802031040, ai_next = 0x2}
q = {next = 0x7fffdfdfc690, name = 0x800b11e08 "E\211.1??P1?\2135yj!",
qclass = -538982744, qtype = 32767, answer = 0x801c06c00 "\225\213\001",
anslen = 11616604, n = 8}
q2 = {next = 0x8014b5f80,
name = 0x801213590 "D$\020L\211D$\bH\211\f$H\2155}S(", qclass =
-538982832,
qtype = 32767, answer = 0x800b12a85 "\203??", anslen = 101269, n = 0}
cur = (struct addrinfo *) 0x3
pai = <value optimized out>
hostname = <value optimized out>
res = <value optimized out>
ai = <value optimized out>
#8 0x000000080120ca61 in strcspn (s=0x801c33100 "",
charset=<value optimized out>) at /usr/src/lib/libc/string/strcspn.c:59
tbl = {34393355264, 34389385984, 34389386167, 34389386056}
bit = <value optimized out>
s1 = <value optimized out>
#9 0x0000000000478a86 in blocking_getaddrinfo (c=0x801c66700,
req=0x801c46300)
at
/usr/src/usr.sbin/ntp/libntp/../../../contrib/ntp/libntp/ntp_intres.c:352
ai_res = (struct addrinfo *) 0x0
node = 0x7fffdfdfcbe8 "\002"
service = 0xc <Address 0xc out of bounds>
worker_ctx = (dnsworker_ctx *) 0x80200e060
resp_octets = Cannot access memory at address 0x600
(gdb)
Cheers,
Matthew
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