bind 9.4 acache crashes

Sotiris Tsimbonis tsimbonis at forthnet.gr
Thu Apr 9 07:26:51 UTC 2009


On 9/4/2009 10:10 πμ, Sotiris Tsimbonis wrote:
> On 7/4/2009 12:09 μμ, Sotiris Tsimbonis wrote:
>> On 6/4/2009 9:23 μμ, JINMEI Tatuya / 神明達哉 wrote:
>>> At Fri, 03 Apr 2009 18:38:01 +0300,
>>> Sotiris Tsimbonis <tsimbonis at forthnet.gr> wrote:
>>>
>>>> Anyone else seen crashes like these?
>>>
>>> FWIW, I've never seen any of these.
>>>
>>
>> Solaris 10, Bind 9.4.3b2
>>
>> Logfile:
>> 10-Mar-2009 09:14:19.460 general: socket.c:2739: fatal error:
>> 10-Mar-2009 09:14:19.461 general: 
>> RUNTIME_CHECK(((pthread_mutex_unlock(((&sock->lock))) == 0) ? 0 : 34) 
>> == 0) failed
>> 10-Mar-2009 09:14:19.461 general: exiting (due to fatal error in library)
>>
> 
> And another one (Solaris 9, bind 9.4.3b2) ...
> 
> 08-Apr-2009 21:14:39.237 general: acache.c:393: INSIST(result == 0) failed
> 08-Apr-2009 21:14:39.237 general: exiting (due to assertion failure)
> 

And another one, with core... (Solaris 10, bind 9.4.3b2)

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This GDB was configured as "sparc-sun-solaris2.10"...
Reading symbols from /lib/libnsl.so.1...done.
Loaded symbols for /lib/libnsl.so.1
Reading symbols from /lib/libsocket.so.1...done.
Loaded symbols for /lib/libsocket.so.1
Reading symbols from /lib/libscf.so.1...done.
Loaded symbols for /lib/libscf.so.1
Reading symbols from /lib/libpthread.so.1...
warning: Lowest section in /lib/libpthread.so.1 is .dynamic at 00000074
done.
Loaded symbols for /lib/libpthread.so.1
Reading symbols from /lib/libthread.so.1...
warning: Lowest section in /lib/libthread.so.1 is .dynamic at 00000074
done.
Loaded symbols for /lib/libthread.so.1
Reading symbols from /lib/libc.so.1...done.
Loaded symbols for /lib/libc.so.1
Reading symbols from /lib/libdoor.so.1...done.
Loaded symbols for /lib/libdoor.so.1
Reading symbols from /lib/libuutil.so.1...done.
Loaded symbols for /lib/libuutil.so.1
Reading symbols from /platform/SUNW,Sun-Fire-V240/lib/libc_psr.so.1...done.
Loaded symbols for /platform/SUNW,Sun-Fire-V240/lib/libc_psr.so.1
Reading symbols from /lib/nss_files.so.1...done.
Loaded symbols for /lib/nss_files.so.1
Reading symbols from /lib/ld.so.1...done.
Loaded symbols for /lib/ld.so.1
Core was generated by `/opt/bind/sbin/named -u named -t /opt/bind -c 
/etc/named.conf'.
Program terminated with signal 11, Segmentation fault.
#0  0xff1b952c in mutex_lock_impl () from /lib/libc.so.1
(gdb) thread apply all bt full

Thread 5 (process 74037    ):
#0  0xff1c097c in ___sigtimedwait () from /lib/libc.so.1
No symbol table info available.
#1  0xff1b45fc in __sigtimedwait () from /lib/libc.so.1
No symbol table info available.
#2  0xff1ac964 in __posix_sigwait () from /lib/libc.so.1
No symbol table info available.
#3  0x001cf3e8 in isc_app_run () at app.c:504
         event = (isc_event_t *) 0x0
         next_event = (isc_event_t *) 0xffbffba8
         task = (isc_task_t *) 0x0
         sset = {__sigbits = {16387, 0, 0, 0}}
         strbuf = 
"\000\000\b<\000\000\b<\000\000\b<\000\000\000\000����\000\000\000\000\000\000\000\000\035Νe\000\000\000\000\000�ΏϋX�\033\234`\000$TΈ\000%Ϋ\200\000$\034\000\000\036\214\000\000$\034L", 
'\0' <repeats 17 times>, 
"$\034\000\000$\034$\000\000\000�\000$\034D\000\036oΐ\000%«Ψ�ΏϋΘ\000\003Ϊx\000\000\000\000\000$hp\000\000\000\000\000\000\000"
         sig = 329004
#4  0x0003da94 in main (argc=7, argv=0xffbffcc4) at main.c:868
         result = 144
         instance = 0x0

Thread 4 (process 336181    ):
#0  0xff1c1058 in ioctl () from /lib/libc.so.1
No symbol table info available.
#1  0x001d9d28 in watcher (uap=0x25ab80) at socket.c:2949
         cc = 1
         dvp = {dp_fds = 0x2a0bf0, dp_nfds = 256, dp_timeout = -1}
         strbuf = '\0' <repeats 127 times>
#2  0xff1c04fc in _lwp_start () from /lib/libc.so.1
No symbol table info available.
#3  0xff1c04fc in _lwp_start () from /lib/libc.so.1
No symbol table info available.
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 3 (process 270645    ):
#0  0xff1c0598 in __lwp_park () from /lib/libc.so.1
No symbol table info available.
#1  0xff1ba514 in cond_sleep_queue () from /lib/libc.so.1
No symbol table info available.
#2  0xff1ba630 in cond_wait_queue () from /lib/libc.so.1
No symbol table info available.
#3  0xff1baaa8 in cond_wait_common () from /lib/libc.so.1
No symbol table info available.
#4  0xff1bac40 in _cond_timedwait () from /lib/libc.so.1
No symbol table info available.
#5  0xff1bad34 in cond_timedwait () from /lib/libc.so.1
No symbol table info available.
#6  0xff1bad74 in pthread_cond_timedwait () from /lib/libc.so.1
No symbol table info available.
#7  0x001e06ec in isc_condition_waituntil (c=0x258bb8, m=0x258b88, 
t=0x258bb0) at condition.c:59
         presult = 77
         result = 2460600
         ts = {tv_sec = 1239261464, tv_nsec = 201782000}
         strbuf = "�\000ώ\230\000\034‘ IΫL\203\000\aΩT�\000ώ¨�\033«δ", 
'\0' <repeats 19 times>, 
"\\\000\000\000Έ\000\000\v\216\000\000\027---Type <return> to continue, 
or q <return> to quit---
\035\000\000\000\000\000\000\000\000\001\000\000\000\000\000\020\204\000%\233\200\000\000\000.\001±(Ψ\000\021�07\225<Θ\"ρ,Ψ�\000�\b\000\034γ|\t\230Ν\230\000\000\000\000�\000�\b\000\034ε\020\000\000\000\000\000\000\000"
#8  0x001ce460 in run (uap=0x258b80) at timer.c:721
         now = {seconds = 1239261463, nanoseconds = 782707000}
         result = 2460600
#9  0xff1c04fc in _lwp_start () from /lib/libc.so.1
No symbol table info available.
#10 0xff1c04fc in _lwp_start () from /lib/libc.so.1
No symbol table info available.
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 2 (process 205109    ):
#0  0x00088840 in destroy_disp_ok (disp=0x999a058) at dispatch.c:627
No locals.
#1  0x0008e860 in dns_dispatch_removeresponse (resp=0x0, 
sockevent=0x1526) at dispatch.c:3038
         mgr = (dns_dispatchmgr_t *) 0x0
         disp = (dns_dispatch_t *) 0x999a058
         dispsock = (dispsocket_t *) 0x1526
         ev = (dns_dispatchevent_t *) 0x0
         bucket = 5414
         killit = 880199176
         events = {head = 0xff04fe80, tail = 0x49dda118}
         qid = (dns_qid_t *) 0x253e50
#2  0x0011af38 in fctx_cancelquery (queryp=0x37b5f5f8, deventp=0x0, 
finish=0x0, no_response=isc_boolean_true) at resolver.c:683
         fctx = (fetchctx_t *) 0x37b54108
         query = (resquery_t *) 0x37b5f5f8
         rtt = 800000
         factor = 0
         find = (dns_adbfind_t *) 0x37b5f5f8
         addrinfo = (dns_adbaddrinfo_t *) 0x1
         socket = (isc_socket_t *) 0x0
#3  0x0011d36c in fctx_timeout (task=0x35e1a990, event=0x4ef14e0) at 
resolver.c:2756
         fctx = (fetchctx_t *) 0x37b54108
         query = (resquery_t *) 0x37b5f5f8
#4  0x001cbca8 in run (uap=0x256b80) at task.c:867
No locals.
#5  0xff1c04fc in _lwp_start () from /lib/libc.so.1
No symbol table info available.
#6  0xff1c04fc in _lwp_start () from /lib/libc.so.1
No symbol table info available.
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 1 (process 139573    ):
#0  0xff1b952c in mutex_lock_impl () from /lib/libc.so.1
No symbol table info available.
#1  0x00071b84 in dns_acache_cancelentry (entry=0xc0c1f00) at acache.c:1660
         acache = (dns_acache_t *) 0x3b0ad0b8
#2  0x000cb760 in acache_cancelentry (mctx=0x246870, entry=0xc0c1f00, 
cbargp=0xff06c6ac) at rbtdb.c:6552
No locals.
#3  0x000cbd60 in rdataset_putadditional (acache=0x3969990, 
rdataset=0x4, type=dns_rdatasetadditional_fromauth, qtype=255)
     at rbtdb.c:6755
         rbtdb = (dns_rbtdb_t *) 0x3989190
         rbtnode = (dns_rbtnode_t *) 0x1980b9b0
         raw = (unsigned char *) 0xff3a2400 ""
---Type <return> to continue, or q <return> to quit---
         current_count = 2
         header = (rdatasetheader_t *) 0x3fb7018
         nodelock = (nodelock_t *) 0x3969990
         total_count = 4
         count = 2
         acarray = (acachectl_t *) 0xff3a2400
         entry = (dns_acacheentry_t *) 0xc0c1f00
         cbarg = (acache_cbarg_t *) 0x1ac10138
#4  0x001135f4 in dns_rdataset_putadditional (acache=0x32266cb0, 
rdataset=0x6ba52b0, type=dns_rdatasetadditional_fromauth, qtype=255)
     at rdataset.c:703
No locals.
#5  0x00041aa4 in query_addadditional2 (arg=0x6ba52b0, name=0xff06dc58, 
qtype=25) at query.c:1392
         rdataset_base = (dns_rdataset_t *) 0x6ba52b0
         client = (ns_client_t *) 0x6b922b0
         result = 4294967295
         node = (dns_dbnode_t *) 0x0
         cnode = (dns_dbnode_t *) 0x0
         db = (dns_db_t *) 0x0
         cdb = (dns_db_t *) 0x0
         fname = (dns_name_t *) 0x6bada60
         mname0 = (dns_name_t *) 0xff06c820
         cfname = {magic = 1145983854, ndata = 0x6ba3954 
"\005nsher\bforthnet\002gr", length = 19, labels = 4, attributes = 1,
   offsets = 0x0, buffer = 0xff06d490, link = {prev = 0xffffffff, next = 
0xffffffff}, list = {head = 0x0, tail = 0x0}}
         rdataset = (dns_rdataset_t *) 0x0
         sigrdataset = (dns_rdataset_t *) 0x0
         crdataset = (dns_rdataset_t *) 0x0
         crdataset_next = (dns_rdataset_t *) 0x6ba36d8
         dbuf = (isc_buffer_t *) 0x6ba36d8
         b = {magic = 1114990113, base = 0x6ba3954, length = 424, used = 
19, current = 0, active = 0, link = {prev = 0xffffffff,
     next = 0xffffffff}, mctx = 0x0}
         version = (dns_dbversion_t *) 0x0
         cversion = (dns_dbversion_t *) 0x0
         added_something = isc_boolean_false
         need_addname = isc_boolean_false
         need_sigrrset = 112874160
         zone = (dns_zone_t *) 0x0
         additionaltype = dns_rdatasetadditional_fromauth
#6  0x000fd27c in dns_rdata_additionaldata (rdata=0xff06dcf8, 
add=0x4168c <query_addadditional2>, arg=0xff06dd90)
     at rdata/generic/md_3.c:192
         result = 112874160
#7  0x00112ffc in dns_rdataset_additionaldata (rdataset=0x6ba52b0, 
add=0x4168c <query_addadditional2>, arg=0xff06dd90) at rdataset.c:599
         rdata = {data = 0x3fb706d "\005nsher\bforthnet\002gr", length = 
19, rdclass = 1, type = 2, flags = 0, link = {
     prev = 0xffffffff, next = 0xffffffff}}
         result = 0
#8  0x0003f91c in query_addrrset (client=0x6b922b0, namep=0xff06de70, 
rdatasetp=0xff06de5c, sigrdatasetp=0x0, dbuf=0x0, section=2)
     at query.c:1914
         name = (dns_name_t *) 0x6badaf0
         mname = (dns_name_t *) 0x6badaf0
         rdataset = (dns_rdataset_t *) 0x6ba52b0
         mrdataset = (dns_rdataset_t *) 0x0
         sigrdataset = (dns_rdataset_t *) 0x0
         result = 0
#9  0x00046860 in query_find (client=0x6b922b0, event=0x0, qtype=57088) 
at query.c:2183
         tdb = (dns_db_t *) 0x0
---Type <return> to continue, or q <return> to quit---
         tzone = (dns_zone_t *) 0x0
         tversion = (dns_dbversion_t *) 0x0
         db = (dns_db_t *) 0x3989190
         zdb = (dns_db_t *) 0x0
         node = (dns_dbnode_t *) 0x2faf8c8
         type = 12
         fname = (dns_name_t *) 0x0
         zfname = (dns_name_t *) 0x0
         tname = (dns_name_t *) 0x8c910d0
         rdataset = (dns_rdataset_t *) 0x0
         trdataset = (dns_rdataset_t *) 0xff06dee8
         sigrdataset = (dns_rdataset_t *) 0x0
         zrdataset = (dns_rdataset_t *) 0x0
         zsigrdataset = (dns_rdataset_t *) 0x0
         sigrdatasetp = (dns_rdataset_t **) 0x6b922b0
         rdata = {data = 0x0, length = 0, rdclass = 0, type = 0, flags = 
0, link = {prev = 0xffffffff, next = 0xffffffff}}
         rdsiter = (dns_rdatasetiter_t *) 0x0
         want_restart = isc_boolean_false
         authoritative = isc_boolean_true
         is_zone = isc_boolean_true
         need_wildcardproof = isc_boolean_false
         n = 464913080
         nlabels = 4
         order = 1
         dbuf = (isc_buffer_t *) 0xffffea5c
         b = {magic = 1114990113, base = 0x6ba3910, length = 492, used = 
26, current = 0, active = 0, link = {prev = 0xffffffff,
     next = 0xffffffff}, mctx = 0x0}
         result = 4278640228
         eresult = 0
         fixed = {name = {magic = 1114990113, ndata = 0x37c08dec 
"\215Δ", length = 512, labels = 12, attributes = 0, offsets = 0x0,
     buffer = 0xffffffff, link = {prev = 0x29, next = 0x0}, list = {head 
= 0x0, tail = 0x0}},
   offsets = "\000\" 
(4vυx5α\203ΰ\000\000\000\000\000\000\000\000Buf!5α\203ΰ\000\000\002\000\000\000\0005Buf!7ΐ\215μ\000\000\002\000\000\000\000\f", 
'\0' <repeats 11 times>, 
"\002¬\024\035(\000\000\000\000\000\000\020\2047ΐ\216\021\000\000\001Ϋ", 
'\0' <repeats 16 times>, 
"��������\000\000\000\000\000\000\000\0004vυx\000\000\000\000����", 
buffer = {magic = 4294967295, base = 0x0, length = 0,
     used = 882648392, current = 4096, active = 0, link = {prev = 0x0, 
next = 0x0}, mctx = 0x0},
   data = 
"\bV­°\000\000L`\000\000\000\000\000%>P\000\000\215Δ\000\037D\000\000\000\000\000\000\000\000\000�\006ςπ\000\000\000\001", 
'\0' <repeats 16 times>, 
"7ΐ\215μ\000\000\000)\032Η\016P6Η'δ5α�Θ\000\021Φp7ΐ\215x6Η'ΰ�\006σΠ\000\021e`", 
'\0' <repeats 12 times>, "$ίF(\032Η\016H5α�Θ7ΐ\031\"\000\000\017ϊ", '\0' 
<repeats 13 times>, "%«\200\000\000\000@", '\0' <repeats 13 times>, 
"\037\220\000\000\000\000\001\032Η\016H\033΄¦Θ5α�Θ", '\0' <repeats 12 
times>, "�\006σΠ\000\021`\2147Α\211`", '\0' <repeats 12 times>, "7ΐ"...}
         wildcardname = {name = {magic = 0, ndata = 0x0, length = 0, 
labels = 0, attributes = 0, offsets = 0x0, buffer = 0x0, link = {
       prev = 0x1, next = 0x266e50}, list = {head = 0x1000, tail = 
0xff06f160}},
   offsets = 
"\000\000\000\000\000\000\020\0004vυΔ�\006π΄4vυx\000\b\233Μ�\006ρ@\032Η\016HIOmg�\006ρ°\000\035Ώά\000\000\000\000\000\000\002ψ\000\000\000\001\000\000\000\001\000\000\000\b\000\000\000\000�:$\000\000\000\000\004\000\000\000\b\000\000\000\000�\006πΐ\000\000\000\t\000\000\000\000DNSn\000\000\000\000\000\000\000\024\000\000\000\000\000\000\020\000�\006ρ\230\000\000\000\000\000\000\000", 
buffer = {
     magic = 449252944, base = 0xff06f160, length = 0, used = 16777216, 
current = 4280208320, active = 2468736, link = {prev = 0xb,
       next = 0xfffffffd}, mctx = 0x1000},
   data = 
"\000\000\000\000\200\000\000\000�\006ρ°\000\035ΐl�\006ρΠ\000\035\204$", 
'\0' <repeats 55 times>, 
"\004\032Η\016P\000\000G at 4vυΔ\000\000\000p�\006ρ`\000\000\000\001\v\nmΰ\000\000\000 
\000\000\000\000�\006σ@4\234%H\000\000\020\000\001Ή\\ΐ�����\006ς@\000\b¦\004", 
'\0' <repeats 28 times>, "5α�Π", '\0' <repeats 15 times>, 
"\001\000\000\000\000\000\000\020\204\032Η\016H\033΄¦Θ�\006ς\004\000\000\000)�\006ςπ�\006ςΠ�\006σ@\000\035Η 
\032Η\016H\000\000\002ψ5α\203ΰ\000\000\000\0005α\203ΰ\000\000"}
         version = (dns_dbversion_t *) 0x1bb602b8
         zone = (dns_zone_t *) 0x1e73dd0
         cname = {common = {rdclass = 1, rdtype = 5, link = {prev = 
0xffffffff, next = 0xffffffff}}, mctx = 0x0, cname = {
     magic = 1145983854, ndata = 0x1213f142 
"\003rad\003msn\003com\005nsatc\003net", length = 23, labels = 6, 
attributes = 1,
---Type <return> to continue, or q <return> to quit---
     offsets = 0x0, buffer = 0x0, link = {prev = 0xffffffff, next = 
0xffffffff}, list = {head = 0x0, tail = 0x0}}}
         dname = {common = {rdclass = 0, rdtype = 0, link = {prev = 0x0, 
next = 0x0}}, mctx = 0x0, dname = {magic = 0, ndata = 0x0,
     length = 0, labels = 0, attributes = 0, offsets = 0x82 <Address 
0x82 out of bounds>, buffer = 0x0, link = {prev = 0x0, next = 0x0},
     list = {head = 0x0, tail = 0x2f8}}}
         options = 0
         empty_wild = isc_boolean_false
         noqname = (dns_rdataset_t *) 0xffffe800
         resuming = isc_boolean_false
#10 0x0004a278 in ns_query_start (client=0x6b922b0) at query.c:4626
         result = 4278640384
         message = (dns_message_t *) 0x6b932b0
         rdataset = (dns_rdataset_t *) 0x6ba5e70
         qclient = (ns_client_t *) 0x6b922b0
         qtype = 7036
#11 0x0003551c in client_request (task=0x241c00, event=0xff06fe00) at 
client.c:1750
         namebuf = "\002\n0`\t\210~ΰ7Α\227 7ΐα(\000 
T8\000\000\000\001\000#NΠ\000\f­δ\000 T8", '\0' <repeats 17 times>, 
"\037\003\210�\006ϊd\000\000\000\000\000\000\000\000\000\036ό\000�\006ϊt\002\026\004(;«\222Έ\000 
‘³\006R\217ΰ\000\000\002@����\000 
@\000\000\000\000\002\000\000\000\000\000\000\000\000\000\000\030\000\000\000\000\000\000 
H\000\000\000\000\002άΗ¬9�\006ϊ \000\021�4\000#NπΡΘν\004\000#Nπ", '\0' 
<repeats 12 times>, ";U\227H\000\000\000\000\000\000\000\000\000 
O\000�\006ϊ\200", '\0' <repeats 16 times>, ";«\221ψ\000_%\020\nΛ±"...
         tsigrcode = 
"�\006ύΠ\000\000\000\001\000άΖx\000\000\000\000\000\000\000\0007\221\035\030\006ΑBΠ\000\000\020\000\000\000\000\0007\217�Δ\000#NΠ", 
'\0' <repeats 13 times>, "#Nπ\000\000\000"
         b = {magic = 56, base = 0x21cc00, length = 2213888, used = 
2364416, current = 2380800, active = 0, link = {prev = 0x246870,
     next = 0x4ef4e80}, mctx = 0x444e536e}
         name = (dns_name_t *) 0x37c19720
         status = 65024
         client = (ns_client_t *) 0x6b922b0
         result = 2313216
         sigresult = 0
         buffer = (isc_buffer_t *) 0xe16c18
         tbuffer = {magic = 1114990113, base = 0x6c142d0, length = 42, 
used = 42, current = 42, active = 42, link = {prev = 0xffffffff,
     next = 0xffffffff}, mctx = 0x0}
         view = (dns_view_t *) 0xe16c18
         opt = (dns_rdataset_t *) 0x6b922b0
         ra = isc_boolean_false
         netaddr = {family = 2, type = {in = {S_un = {S_un_b = {s_b1 = 
208 'Π', s_b2 = 69 'E', s_b3 = 34 '"', s_b4 = 6 '\006'},
         S_un_w = {s_w1 = 53317, s_w2 = 8710}, S_addr = 3494191622}}, 
in6 = {_S6_un = {
         _S6_u8 = "ΠE\"\006\000\000\000\000\000\037,ψ�\006ώψ", _S6_u32 = 
{3494191622, 0, 2043128, 4278648568},
         __S6_align = 3494191622}},
     un = 
"ΠE\"\006\000\000\000\000\000\037,ψ�\006ώψ,\fςp�\006�\000,\004G°\000\000\000\024\000\000\000\000����\002\n\020°\000\000\000\000\000%Άθ�\006�\020\000\000\000\000\000\000\000\000\006dvΰ\000$\034\000\000\000\000\000\001\000\000\000\000\000\020\204\006Ή\"°\006Ή\"°�\036Λΐ�:$\000\006dvθ\000\000\000"}, 
zone = 0}
         destaddr = {family = 2, type = {in = {S_un = {S_un_b = {s_b1 = 
193 'Α', s_b2 = 92 '\\', s_b3 = 150 '\226', s_b4 = 3 '\003'},
         S_un_w = {s_w1 = 49500, s_w2 = 38403}, S_addr = 3244070403}}, 
in6 = {_S6_un = {_S6_u8 = "Α\\\226\003\000\000\003Ϊ\006dvΨDisp",
         _S6_u32 = {3244070403, 986, 107247320, 1147761520}, __S6_align 
= 3244070403}},
     un = 
"Α\\\226\003\000\000\003Ϊ\006dvΨDispIέ‘\017\000\000\000Α\000\000\000\004", 
'\0' <repeats 13 times>, 
"\f\000\000\000$\034\000\000\001\000?\000\000\000\000\000\000\000\001\000α]X\006Ήc \006dvΨ\000\000\000\000\006dvΨ\000\000\000\000�\006ώ°\000\003\033X\000\000\000\000DNSI\000#NΠ\000\b*P"}, 
zone = 0}
         match = 0
         id = 38046
         flags = 0
         notimp = 2366464
#12 0x001cbca8 in run (uap=0x256b80) at task.c:867
No locals.
#13 0xff1c04fc in _lwp_start () from /lib/libc.so.1
---Type <return> to continue, or q <return> to quit---
No symbol table info available.
#14 0xff1c04fc in _lwp_start () from /lib/libc.so.1
No symbol table info available.
Backtrace stopped: previous frame identical to this frame (corrupt stack?)



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