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Hi Adrian, Hmmm, the meter programcould not be started. So, the child process decided to exit. That invoked all the destructors were called in the chold. Apparently, the on for XrdOucStream hicupped. I should be able to reproduce this. That said, the problem here is that it can't start the meter program and there should be a message in the log saying why. This is probably fastest way to avoid this problem. Andy On Sun, 20 Oct 2019, Adrian Sevcenco wrote: > Hi! I have a strange situation on a server (from an ALICE colleague) that > runs xrootd-server-4.9.1 from epel and have a cored dump each 30s with the > below content > any idea what is going on? > > Thank you! > Adrian > > Reading symbols from /usr/bin/cmsd...Reading symbols from > /usr/lib/debug/usr/bin/cmsd.debug...done. > done. > [New LWP 1557] > [Thread debugging using libthread_db enabled] > Using host libthread_db library "/lib64/libthread_db.so.1". > Core was generated by `/usr/bin/cmsd -b -n server -l > /home/xrootd/alicexrdrun/logs/cmslog -s /home/xro'. > Program terminated with signal 6, Aborted. > #0 0x00007ff528cfa2c7 in __GI_raise (sig=sig@entry=6) at > ../nptl/sysdeps/unix/sysv/linux/raise.c:55 > 55 return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig); > Missing separate debuginfos, use: debuginfo-install > bzip2-libs-1.0.6-13.el7.x86_64 elfutils-libelf-0.172-2.el7.x86_64 > elfutils-libs-0.172-2.el7.x86_64 libattr-2.4.46-13.el7.x86_64 > libcap-2.22-9.el7.x86_64 libgcrypt-1.5.3-14.el7.x86_64 > libgpg-error-1.12-3.el7.x86_64 libselinux-2.5-14.1.el7.x86_64 > lz4-1.7.5-2.el7.x86_64 pcre-8.32-17.el7.x86_64 > systemd-libs-219-62.el7_6.9.x86_64 > xrootd-aggregatingname2name-1.0.1-1.el7.centos.x86_64 > xz-libs-5.2.2-1.el7.x86_64 zlib-1.2.7-18.el7.x86_64 > (gdb) bt > #0 0x00007ff528cfa2c7 in __GI_raise (sig=sig@entry=6) at > ../nptl/sysdeps/unix/sysv/linux/raise.c:55 > #1 0x00007ff528cfb9b8 in __GI_abort () at abort.c:90 > #2 0x00007ff5296097d5 in __gnu_cxx::__verbose_terminate_handler () at > ../../../../libstdc++-v3/libsupc++/vterminate.cc:95 > #3 0x00007ff529607746 in __cxxabiv1::__terminate (handler=<optimized out>) > at ../../../../libstdc++-v3/libsupc++/eh_terminate.cc:38 > #4 0x00007ff529607773 in std::terminate () at > ../../../../libstdc++-v3/libsupc++/eh_terminate.cc:48 > #5 0x00007ff529607371 in __cxxabiv1::__gxx_personality_v0 > (version=<optimized out>, actions=<optimized out>, exception_class=<optimized > out>, ue_header=<optimized out>, context=<optimized out>) > at ../../../../libstdc++-v3/libsupc++/eh_personality.cc:670 > #6 0x00007ff5290a09b4 in _Unwind_ForcedUnwind_Phase2 > (exc=exc@entry=0x7ff5253a1d70, context=context@entry=0x7ff5253a0870) at > ../../../libgcc/unwind.inc:175 > #7 0x00007ff5290a0d04 in _Unwind_ForcedUnwind (exc=0x7ff5253a1d70, > stop=stop@entry=0x7ff529ac6180 <unwind_stop>, stop_argument=<optimized out>) > at ../../../libgcc/unwind.inc:207 > #8 0x00007ff529ac6302 in __GI___pthread_unwind (buf=<optimized out>) at > unwind.c:129 > #9 0x00007ff529ac6435 in __pthread_enable_asynccancel () at > ../nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S:80 > #10 0x00007ff529ac6752 in close () at ../sysdeps/unix/syscall-template.S:81 > #11 0x00007ff529d1ed6c in XrdOucStream::Close (this=this@entry=0x6519a0 > <XrdCms::Meter>, hold=hold@entry=0) at > /usr/src/debug/xrootd-4.9.1/src/XrdOuc/XrdOucStream.cc:295 > #12 0x000000000042df58 in ~XrdOucStream (this=0x6519a0 <XrdCms::Meter>, > __in_chrg=<optimized out>) at > /usr/src/debug/xrootd-4.9.1/src/XrdOuc/XrdOucStream.hh:56 > #13 XrdCmsMeter::~XrdCmsMeter (this=0x6519a0 <XrdCms::Meter>, > __in_chrg=<optimized out>) at > /usr/src/debug/xrootd-4.9.1/src/XrdCms/XrdCmsMeter.cc:108 > #14 0x00007ff528cfdc29 in __run_exit_handlers (status=255, > listp=0x7ff52908a6c8 <__exit_funcs>, > run_list_atexit=run_list_atexit@entry=true) at exit.c:77 > #15 0x00007ff528cfdc77 in __GI_exit (status=<optimized out>) at exit.c:99 > #16 0x00007ff529d1f282 in XrdOucStream::Exec (this=this@entry=0x6519a0 > <XrdCms::Meter>, parm=0x7ff5253a0ad0, inrd=inrd@entry=0, efd=efd@entry=0) at > /usr/src/debug/xrootd-4.9.1/src/XrdOuc/XrdOucStream.cc:498 > #17 0x00007ff529d1f6f8 in XrdOucStream::Exec (this=this@entry=0x6519a0 > <XrdCms::Meter>, theCmd=0x7372e0 "@9q", inrd=inrd@entry=0, efd=efd@entry=0) > at /usr/src/debug/xrootd-4.9.1/src/XrdOuc/XrdOucStream.cc:396 > #18 0x000000000042e43c in XrdCmsMeter::Run (this=0x6519a0 <XrdCms::Meter>) at > /usr/src/debug/xrootd-4.9.1/src/XrdCms/XrdCmsMeter.cc:330 > #19 0x000000000042e5a9 in XrdCmsMeterRun (carg=<optimized out>) at > /usr/src/debug/xrootd-4.9.1/src/XrdCms/XrdCmsMeter.cc:65 > #20 0x00007ff529d08617 in XrdSysThread_Xeq (myargs=0x738000) at > /usr/src/debug/xrootd-4.9.1/src/XrdSys/XrdSysPthread.cc:86 > #21 0x00007ff529abfdd5 in start_thread (arg=0x7ff5253a1700) at > pthread_create.c:307 > #22 0x00007ff528dc202d in clone () at > ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 > > > > > ######################################################################## > Use REPLY-ALL to reply to list > > To unsubscribe from the XROOTD-L list, click the following link: > https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-L&A=1 > ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-L list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-L&A=1