Hi,
We're looking at doing a build of Naviserver tagged as 4.99.7. But we seem
to be hitting an intermittent seg fault or bus error during the "make test".
Sometimes the tests complete cleanly.
It's often while running ns_conn.test, usually it PASSED ns_conn-1.2 then
crashes.
This is on a Debian 7.8 server.
Built by doing:
./autogen.sh --with-tcl=/usr/lib/tcl8.5
./configure --with-tcl=/usr/lib/tcl8.5 --prefix=/usr/local/ns
--enable-symbols --enable-threads
make
make test
I have core dumps. There's a backtrace at the end of the bus error (but gdb
isn't my area so apologies if there's nothing useful in there).
Is this anything of concern?
--
David
Qcode Software Limited
http://www.qcode.co.uk
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `./nsd/nsd -u root -c -d -t
/root/naviserver/tests/test.nscfg /root/naviserver/t'.
Program terminated with signal 7, Bus error.
#0 Ns_MutexLock (mutex=0x206c617665757274) at mutex.c:239
239 mutexPtr = GETMUTEX(mutex);
(gdb) info threads
Id Target Id Frame
18 Thread 0x2b8bd7b5f700 (LWP 7173) 0x00002b8bd685b5f2 in
Tcl_ExternalToUtfDString () from /usr/lib/libtcl8.5.so.0
17 Thread 0x2b8bdc580700 (LWP 7192) pthread_cond_timedwait@@GLIBC_2.3.2
()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
16 Thread 0x2b8bdc37f700 (LWP 7189) 0x00002b8bd7075d13 in *__GI___poll
(fds=<optimized out>, nfds=<optimized out>,
timeout=timeout@entry=30000) at ../sysdeps/unix/sysv/linux/poll.c:87
15 Thread 0x2b8bdc17e700 (LWP 7188) 0x00002b8bd7075d13 in *__GI___poll
(fds=<optimized out>, nfds=<optimized out>,
timeout=timeout@entry=30000) at ../sysdeps/unix/sysv/linux/poll.c:87
14 Thread 0x2b8bdbf7d700 (LWP 7187) 0x00002b8bd7075d13 in *__GI___poll
(fds=<optimized out>, nfds=<optimized out>,
timeout=timeout@entry=30000) at ../sysdeps/unix/sysv/linux/poll.c:87
13 Thread 0x2b8bdbd7c700 (LWP 7186) 0x00002b8bd7075d13 in *__GI___poll
(fds=<optimized out>, nfds=<optimized out>,
timeout=timeout@entry=30000) at ../sysdeps/unix/sysv/linux/poll.c:87
12 Thread 0x2b8bdbb7b700 (LWP 7185) 0x00002b8bd7075d13 in *__GI___poll
(fds=<optimized out>, nfds=<optimized out>,
timeout=timeout@entry=30000) at ../sysdeps/unix/sysv/linux/poll.c:87
11 Thread 0x2b8bdb97a700 (LWP 7184) 0x00002b8bd7075d13 in *__GI___poll
(fds=<optimized out>, nfds=<optimized out>,
timeout=timeout@entry=30000) at ../sysdeps/unix/sysv/linux/poll.c:87
10 Thread 0x2b8bdb779700 (LWP 7183) 0x00002b8bd7075d13 in *__GI___poll
(fds=<optimized out>, nfds=<optimized out>,
timeout=timeout@entry=10000) at ../sysdeps/unix/sysv/linux/poll.c:87
9 Thread 0x2b8bdb578700 (LWP 7182) pthread_cond_timedwait@@GLIBC_2.3.2
()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
8 Thread 0x2b8bdb377700 (LWP 7181) pthread_cond_timedwait@@GLIBC_2.3.2
()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
7 Thread 0x2b8bdb176700 (LWP 7180) pthread_cond_timedwait@@GLIBC_2.3.2
()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
6 Thread 0x2b8bdaf75700 (LWP 7179) pthread_cond_timedwait@@GLIBC_2.3.2
()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
5 Thread 0x2b8bdad74700 (LWP 7178) pthread_cond_timedwait@@GLIBC_2.3.2
()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
4 Thread 0x2b8bda567700 (LWP 7177) pthread_cond_timedwait@@GLIBC_2.3.2
()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:216
3 Thread 0x2b8bd7ed7700 (LWP 7174) 0x00002b8bd707a453 in select () at
../sysdeps/unix/syscall-template.S:82
2 Thread 0x2b8bd77522e0 (LWP 7172) do_sigwait (set=0x7fff74ac2f50,
sig=0x7fff74ac2f4c)
at
../nptl/sysdeps/unix/sysv/linux/../../../../../sysdeps/unix/sysv/linux/sigwait.c:65
* 1 Thread 0x2b8bdcba2700 (LWP 7196) Ns_MutexLock
(mutex=0x206c617665757274) at mutex.c:239
(gdb) bt
#0 Ns_MutexLock (mutex=0x206c617665757274) at mutex.c:239
#1 0x00002b8bd5f569ed in LockArrayObj (interp=interp@entry=0xa0022a0,
arrayObj=0xa05a8b0, create=create@entry=0) at tclvar.c:1265
#2 0x00002b8bd5f55f7e in NsTclNsvArrayObjCmd (UNUSED_clientData=<optimized
out>, interp=0xa0022a0, objc=3, objv=0xa060c38)
at tclvar.c:669
#3 0x00002b8bd681fdbe in ?? () from /usr/lib/libtcl8.5.so.0
#4 0x00002b8bd68624be in ?? () from /usr/lib/libtcl8.5.so.0
#5 0x00002b8bd68a427b in TclObjInterpProcCore () from
/usr/lib/libtcl8.5.so.0
#6 0x00002b8bd681fdbe in ?? () from /usr/lib/libtcl8.5.so.0
#7 0x00002b8bd68209f5 in ?? () from /usr/lib/libtcl8.5.so.0
#8 0x00002b8bd6820546 in Tcl_EvalEx () from /usr/lib/libtcl8.5.so.0
#9 0x00002b8bd5f431cb in Ns_TclEval (dsPtr=dsPtr@entry=0x0,
server=<optimized out>,
script=script@entry=0x9fb2884 "\n # If necessary due to running
this code in a different environment, you\n # can have the newly
spawned worker thread first source this file here.\n
tst_cond_worker\n ") at tclinit.c:334
#10 0x00002b8bd5f54073 in NsTclThread (arg=0x9fb2870) at tclthread.c:834
#11 0x00002b8bd65e884c in NsThreadMain (arg=<optimized out>) at thread.c:227
#12 0x00002b8bd65e9839 in ThreadMain (arg=<optimized out>) at pthread.c:809
#13 0x00002b8bd753bb50 in start_thread (arg=<optimized out>) at
pthread_create.c:304
#14 0x00002b8bd708095d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#15 0x0000000000000000 in ?? ()
(gdb) frame 15
#15 0x0000000000000000 in ?? ()
(gdb) frame 14
#14 0x00002b8bd708095d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
112 in ../sysdeps/unix/sysv/linux/x86_64/clone.S
(gdb) frame 13
#13 0x00002b8bd753bb50 in start_thread (arg=<optimized out>) at
pthread_create.c:304
304 pthread_create.c: No such file or directory.
(gdb) frame 12
#12 0x00002b8bd65e9839 in ThreadMain (arg=<optimized out>) at pthread.c:809
809 NsThreadMain(arg);
(gdb) frame 11
#11 0x00002b8bd65e884c in NsThreadMain (arg=<optimized out>) at thread.c:227
227 (*thrPtr->proc) (thrPtr->arg);
(gdb) frame 10
#10 0x00002b8bd5f54073 in NsTclThread (arg=0x9fb2870) at tclthread.c:834
834 (void) Ns_TclEval(dsPtr, argPtr->server, argPtr->script);
(gdb) frame 9
#9 0x00002b8bd5f431cb in Ns_TclEval (dsPtr=dsPtr@entry=0x0,
server=<optimized out>,
script=script@entry=0x9fb2884 "\n # If necessary due to running
this code in a different environment, you\n # can have the newly
spawned worker thread first source this file here.\n
tst_cond_worker\n ") at tclinit.c:334
334 if (Tcl_EvalEx(interp, script, -1, 0) != TCL_OK) {
(gdb) frame 8
#8 0x00002b8bd6820546 in Tcl_EvalEx () from /usr/lib/libtcl8.5.so.0
(gdb) frame 7
#7 0x00002b8bd68209f5 in ?? () from /usr/lib/libtcl8.5.so.0
(gdb) frame 6
#6 0x00002b8bd681fdbe in ?? () from /usr/lib/libtcl8.5.so.0
(gdb) frame 5
#5 0x00002b8bd68a427b in TclObjInterpProcCore () from
/usr/lib/libtcl8.5.so.0
(gdb) frame 4
#4 0x00002b8bd68624be in ?? () from /usr/lib/libtcl8.5.so.0
(gdb) frame 3
#3 0x00002b8bd681fdbe in ?? () from /usr/lib/libtcl8.5.so.0
(gdb) frame 2
#2 0x00002b8bd5f55f7e in NsTclNsvArrayObjCmd (UNUSED_clientData=<optimized
out>, interp=0xa0022a0, objc=3, objv=0xa060c38)
at tclvar.c:669
669 arrayPtr = LockArrayObj(interp, objv[2], 0);
(gdb) frame 1
#1 0x00002b8bd5f569ed in LockArrayObj (interp=interp@entry=0xa0022a0,
arrayObj=0xa05a8b0, create=create@entry=0) at tclvar.c:1265
1265 Ns_MutexLock(&(arrayPtr->bucketPtr->lock));
(gdb) frame 0
#0 Ns_MutexLock (mutex=0x206c617665757274) at mutex.c:239
239 mutexPtr = GETMUTEX(mutex);
(gdb) list
234 Ns_GetTime(&startTime);
235 #endif
236
237 assert(mutex != NULL);
238
239 mutexPtr = GETMUTEX(mutex);
240 if (unlikely(!NsLockTry(mutexPtr->lock))) {
241 NsLockSet(mutexPtr->lock);
242 ++mutexPtr->nbusy;
243
(gdb)
------------------------------------------------------------------------------
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