Forum OpenACS Q&A: Re: OpenACS clustering setup and how it relates to xotcl-core.
We got a signal 11 core today on our live system. I was able to connect up to it with gdb and get a backtrace. Here is the backtrace.
Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/local/ns/bin/nsd... ... Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". --Type RET for more, q to quit, c to continue without paging-- Core was generated by `/usr/local/ns/bin/nsd -u root -g web -i -t /web/etc/config.tcl'. Program terminated with signal SIGSEGV, Segmentation fault. #0 __GI_abort () at abort.c:107 107 abort.c: No such file or directory. [Current thread is 1 (Thread 0x7fcc74ff9700 (LWP 37))] (gdb) bt #0 __GI_abort () at abort.c:107 #1 0x00007fccba4b3064 in skgdbgcra () from /opt/oracle/instantclient_21_1/libclntsh.so.21.1 #2 0x00007fccba480693 in skgesigCrash () from /opt/oracle/instantclient_21_1/libclntsh.so.21.1 #3 0x00007fccba4809de in skgesig_sigactionHandler () from /opt/oracle/instantclient_21_1/libclntsh.so.21.1 #4 signal handler called #5 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50 #6 0x00007fccc2292859 in __GI_abort () at abort.c:79 #7 0x00007fccc24cf27f in Panic (fmt=optimized out) at log.c:943 #8 0x00007fccc215bf8d in Tcl_PanicVA () from /usr/local/ns/lib/libtcl8.6.so #9 0x00007fccc215c0ff in Tcl_Panic () from /usr/local/ns/lib/libtcl8.6.so #10 0x00007fccc25143ca in Abort (signal=optimized out) at unix.c:1119 #11 signal handler called #12 0x00007fccc24b825c in NsTclConnChanProc (UNUSED_sock=optimized out, arg=0x7fcbf581d460, why=1) at connchan.c:694 #13 0x00007fccc24e279d in SockCallbackThread (UNUSED_arg=optimized out) at sockcallback.c:531 #14 0x00007fccc2210fd4 in NsThreadMain (arg=optimized out) at thread.c:232 #15 0x00007fccc221169f in ThreadMain (arg=optimized out) at pthread.c:870 #16 0x00007fccc1b72609 in start_thread (arg=optimized out) at pthread_create.c:477 #17 0x00007fccc238f293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95Any Ideas on what could be causing the signal 11 issue? If you want me to open a new discussion on it I can.. Thanks! Marty