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https://issues.apache.org/jira/browse/STDCXX-851?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12587416#action_12587416
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Martin Sebor commented on STDCXX-851:
-------------------------------------
Another piece of info from the debugger that might be of use -- looks like
{{\_C_rdbuf}} has an invalid value:
{noformat}
(gdb) p *this
$2 = {__vptr = 0x809912c, __v_St9basic_iosIcSt11char_traitsIcEE = {
__b_St8ios_base = {__vptr = 0x8099140, _C_rdbuf = 0x6, _C_prec = 0,
_C_wide = 4098, _C_fmtfl = 0, _C_state = 0 '\0', _C_except = 0 '\0',
_C_usr = 0x0, _C_loc = {_C_body = 0x80a75a0}}, _C_fill = 0}}
{noformat}
> [EDG eccp/Linux] SIGSEGV in std::Init::~Init()
> ----------------------------------------------
>
> Key: STDCXX-851
> URL: https://issues.apache.org/jira/browse/STDCXX-851
> Project: C++ Standard Library
> Issue Type: Bug
> Components: 27. Input/Output
> Affects Versions: 4.2.0
> Environment: EDG eccp 3.9/Linux
> Reporter: Martin Sebor
> Priority: Critical
> Fix For: 4.2.2
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> After fixing STDCXX-849 a good number of tests compiled with EDG eccp 3.9 on
> Linx/x86 fail with a {{SIGSEGV}} like the one below:
> {noformat}
> $ make -r 21.string.io.stdcxx-250 && gdb -q 21.string.io.stdcxx-250
> eccp -c -I/home/sebor/stdcxx/include/ansi -D_RWSTDDEBUG
> -I/home/sebor/stdcxx/include -I/build/sebor/stdcxx-eccp-3.9-11s/include
> -I/home/sebor/stdcxx/tests/include -A -x
> --template_directory=/build/sebor/stdcxx-eccp-3.9-11s/lib -g
> --display_error_number --remarks --diag_suppress
> 193,236,340,401,261,479,487,678,679,815
> /home/sebor/stdcxx/tests/regress/21.string.io.stdcxx-250.cpp
> eccp 21.string.io.stdcxx-250.o -o 21.string.io.stdcxx-250
> -L/build/sebor/stdcxx-eccp-3.9-11s/rwtest -lrwtest11s
> --template_directory=/build/sebor/stdcxx-eccp-3.9-11s/lib
> -L/build/sebor/stdcxx-eccp-3.9-11s/lib -lstd11s -lm
> rm 21.string.io.stdcxx-250.o
> Using host libthread_db library "/lib64/libthread_db.so.1".
> (gdb) run
> Starting program:
> /build/sebor/stdcxx-eccp-3.9-11s/tests/21.string.io.stdcxx-250
> Program received signal SIGSEGV, Segmentation fault.
> 0x08066dd7 in _ZNSo5flushEv (this=0x5ae140)
> at /home/sebor/stdcxx/include/ostream.cc:48
> 48 __res = this->rdbuf ()->pubsync ();
> Current language: auto; currently c++
> Missing separate debuginfos, use: debuginfo-install gcc.i386 glibc.i686
> (gdb) where
> #0 0x08066dd7 in _ZNSo5flushEv (this=0x5ae140)
> at /home/sebor/stdcxx/include/ostream.cc:48
> #1 0x00513b51 in std::ios_base::Init::~Init () from /usr/lib/libstdc++.so.6
> #2 0x005290f0 in ?? () from /usr/lib/libstdc++.so.6
> #3 0x008f2907 in __cxa_finalize () from /lib/libc.so.6
> #4 0x00507c54 in ?? () from /usr/lib/libstdc++.so.6
> #5 0x005a9588 in ?? () from /usr/lib/libstdc++.so.6
> #6 0x00000007 in ?? ()
> #7 0x00000282 in ?? ()
> #8 0x00507c2a in ?? () from /usr/lib/libstdc++.so.6
> #9 0x005ac5d4 in ?? () from /usr/lib/libstdc++.so.6
> #10 0xf7fde290 in ?? ()
> #11 0xff8353b8 in ?? ()
> #12 0x005831dc in ?? () from /usr/lib/libstdc++.so.6
> #13 0x00000007 in ?? ()
> #14 0x008c2fc0 in ?? () from /lib/ld-linux.so.2
> #15 0xff835448 in ?? ()
> #16 0x008b5b22 in _dl_fini () from /lib/ld-linux.so.2
> Backtrace stopped: previous frame inner to this frame (corrupt stack?)
> {noformat}
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