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Another two crashes by same user+version, still in the Handshake but now in debug mode (adding here as suggested by Michal).
Core was generated by `xrdcp -r root://eospublic.cern.ch//eos/experiment/SOMEPATH /tmp'.
Program terminated with signal 11, Segmentation fault.
#0 0x00002b55739bb079 in vfprintf () from /lib64/libc.so.6
(gdb) bt
#0 0x00002b55739bb079 in vfprintf () from /lib64/libc.so.6
#1 0x00002b5573a83ff5 in __vsnprintf_chk () from /lib64/libc.so.6
#2 0x00002b5572dd303b in vsnprintf (__ap=0x2b557903c7b0, __fmt=0x2b5572ee0bd0 "[%s] Received a wait response to endsess request, will wait for %d seconds before replaying the endsess request",
__n=1024, __s=0x2b557c01bf30 "[r\001|U+") at /usr/include/bits/stdio2.h:78
#3 XrdCl::Log::Say (this=0x20db830, level=level@entry=XrdCl::Log::DebugMsg, topic=topic@entry=512,
format=format@entry=0x2b5572ee0bd0 "[%s] Received a wait response to endsess request, will wait for %d seconds before replaying the endsess request", list=list@entry=0x2b557903c9c0)
at /usr/src/debug/xrootd-5.4.0/src/XrdCl/XrdClLog.cc:112
#4 0x00002b5572dd3c9f in XrdCl::Log::Debug (this=<optimized out>, topic=topic@entry=512,
format=format@entry=0x2b5572ee0bd0 "[%s] Received a wait response to endsess request, will wait for %d seconds before replaying the endsess request")
at /usr/src/debug/xrootd-5.4.0/src/XrdCl/XrdClLog.cc:292
#5 0x00002b5572e9068b in XrdCl::AsyncSocketHandler::HandleHandShake (this=this@entry=0x2b55840d4dd0, msg=...) at /usr/src/debug/xrootd-5.4.0/src/XrdCl/XrdClAsyncSocketHandler.cc:582
#6 0x00002b5572e90b3a in XrdCl::AsyncSocketHandler::OnReadWhileHandshaking (this=0x2b55840d4dd0) at /usr/src/debug/xrootd-5.4.0/src/XrdCl/XrdClAsyncSocketHandler.cc:527
#7 0x00002b5572e90f55 in XrdCl::AsyncSocketHandler::Event (this=0x2b55840d4dd0, type=1 '\001') at /usr/src/debug/xrootd-5.4.0/src/XrdCl/XrdClAsyncSocketHandler.cc:227
#8 0x00002b5572df88c7 in (anonymous namespace)::SocketCallBack::Event (this=0x2b55840c5ff0, chP=<optimized out>, cbArg=<optimized out>, evFlags=<optimized out>)
at /usr/src/debug/xrootd-5.4.0/src/XrdCl/XrdClPollerBuiltIn.cc:83
#9 0x00002b557338291d in XrdSys::IOEvents::Poller::CbkXeq (this=this@entry=0x211b780, cP=cP@entry=0x2b55840cfa10, events=1, eNum=0, eTxt=<optimized out>)
at /usr/src/debug/xrootd-5.4.0/src/XrdSys/XrdSysIOEvents.cc:695
#10 0x00002b5573383b29 in XrdSys::IOEvents::PollE::Dispatch (this=this@entry=0x211b780, cP=0x2b55840cfa10, pollEv=<optimized out>) at /usr/src/debug/xrootd-5.4.0/src/XrdSys/XrdSysIOEventsPollE.icc:277
#11 0x00002b5573383d19 in XrdSys::IOEvents::PollE::Begin (this=0x211b780, syncsem=<optimized out>, retcode=<optimized out>, eTxt=<optimized out>)
at /usr/src/debug/xrootd-5.4.0/src/XrdSys/XrdSysIOEventsPollE.icc:232
#12 0x00002b557338054d in XrdSys::IOEvents::BootStrap::Start (parg=0x7ffe467218f0) at /usr/src/debug/xrootd-5.4.0/src/XrdSys/XrdSysIOEvents.cc:133
#13 0x00002b5573389457 in XrdSysThread_Xeq (myargs=0x211b850) at /usr/src/debug/xrootd-5.4.0/src/XrdSys/XrdSysPthread.cc:86
#14 0x00002b5574e47ea5 in start_thread () from /lib64/libpthread.so.0
#15 0x00002b5573a6cb0d in clone () from /lib64/libc.so.6
(gdb) x/i $rip
=> 0x2b55739bb079 <vfprintf+19065>: repnz scas %es:(%rdi),%al
(gdb) p/x $rdi
$1 = 0x4
(gdb) f 3
#3 XrdCl::Log::Say (this=0x20db830, level=level@entry=XrdCl::Log::DebugMsg, topic=topic@entry=512,
format=format@entry=0x2b5572ee0bd0 "[%s] Received a wait response to endsess request, will wait for %d seconds before replaying the endsess request", list=list@entry=0x2b557903c9c0)
at /usr/src/debug/xrootd-5.4.0/src/XrdCl/XrdClLog.cc:112
112 ret = vsnprintf( buffer, size, format, cp );
(gdb) info locals
cp = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x2b557903caa0, reg_save_area = 0x2b557903c9e0}}
size = 1024
buffer = 0x2b557c01bf30 "[r\001|U+"
tz = "?\311\003yU+\000"
tsNow = {tm_sec = 6395136, tm_min = 0, tm_hour = -2079509440, tm_mday = 11093, tm_mon = 34667328, tm_year = 0, tm_wday = 34453552, tm_yday = 0, tm_isdst = 2080401664, tm_gmtoff = 47645999316127,
tm_zone = 0x3000000018 <Address 0x3000000018 out of bounds>}
line = <optimized out>
out = <incomplete type>
ret = <optimized out>
ttNow = {tv_sec = 47646152626944, tv_usec = 47646102505616}
tok = {buff = 0x2b550000007c <Address 0x2b550000007c out of bounds>, token = 0x7a6fccca321ec100 <Address 0x7a6fccca321ec100 out of bounds>, tnext = 0x0, notabs = 2080412848}
now = "\210\224\000|U+\000\000\030\225a", '\000' <repeats 14 times>, "\301\036\062\312\314oz\330\310\003yU+\000\000\300\312\003yU+\000"
ts = "\000\000\002", '\000' <repeats 28 times>
(gdb) l
107 while(1)
108 {
109 va_list cp;
110 va_copy( cp, list );
111 buffer = new char[size];
112 ret = vsnprintf( buffer, size, format, cp );
113 va_end( cp );
114
115 if( ret < 0 )
116 {
(gdb) print list
$2 = (typedef __va_list_tag __va_list_tag *) 0x2b557903c9c0
(gdb) print *list
$3 = {gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x2b557903caa0, reg_save_area = 0x2b557903c9e0}
(gdb) info threads
Id Target Id Frame
7 Thread 0x2b557923e700 (LWP 82) 0x00002b5573a339fd in nanosleep () from /lib64/libc.so.6
6 Thread 0x2b5577f77200 (LWP 80) 0x00002b5574e4ba35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
5 Thread 0x2b5572b02900 (LWP 6794) 0x00002b5574e4bde2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
4 Thread 0x2b5579640700 (LWP 84) 0x00002b5574e4db3b in do_futex_wait.constprop.1 () from /lib64/libpthread.so.0
3 Thread 0x2b557943f700 (LWP 83) 0x00002b5574e4db3b in do_futex_wait.constprop.1 () from /lib64/libpthread.so.0
2 Thread 0x2b5579841700 (LWP 85) 0x00002b5574e4db3b in do_futex_wait.constprop.1 () from /lib64/libpthread.so.0
* 1 Thread 0x2b557903d700 (LWP 81) 0x00002b55739bb079 in vfprintf () from /lib64/libc.so.6
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