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From: Fred Channey <fchanney@yahoo.com>
To: nobody@gcc.gnu.org
Cc: gcc-prs@gcc.gnu.org,
Subject: Re: libstdc++/10350: thread-safety problem in std::string.
Date: Fri, 02 May 2003 21:46:00 -0000 [thread overview]
Message-ID: <20030502214601.9751.qmail@sources.redhat.com> (raw)
The following reply was made to PR libstdc++/10350; it has been noted by GNATS.
From: Fred Channey <fchanney@yahoo.com>
To: gcc-help@gcc.gnu.org, gcc@gcc.gnu.org, gcc-gnats@gcc.gnu.org,
gcc-bugs@gcc.gnu.org, jkanze@caicheuvreuse.com, nobody@gcc.gnu.org,
gcc-prs@gcc.gnu.org
Cc: fchanney@yahoo.com
Subject: Re: libstdc++/10350: thread-safety problem in std::string.
Date: Fri, 2 May 2003 14:42:19 -0700 (PDT)
We are having some crashes with stdc++. It happens on
a 2-processor i686 machine - the crashes went away if
we boot the same machine with only one processor.
Also, core dumps only happen under heavy loads - no
crashes if the threads are not many.
The core dumps scatters over a handful of places - in
std::string, std::basic_string<wchar_t>, std::map,
std::_Rb_tree, std::__default_alloc_template,
std::pair, std::_List_base, std::_Rb_tree_rebalance,
std::_Rb_tree_rotate_left, etc.
The os is Redhat Linux 7.3, The version we have are
compat-libstdc++-6.2-2.9.0.16
libstdc++3-3.0.4-1
libstdc++-2.96-113
libc-2.2.5-43
glibc-common-2.2.5-43
The cpus are
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 11
model name : Intel(R) Pentium(R) III CPU family
1266MHz
stepping : 1
cpu MHz : 1266.098
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8
apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips : 2529.68
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 11
model name : Intel(R) Pentium(R) III CPU family
1266MHz
stepping : 1
cpu MHz : 1266.098
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8
apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips : 2529.68
Typical trace back of the cores are like these:
---------------------------------------------------------------------------------------------------------
#0 0x082426e8 in std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t>
>::_Rep::_S_create(unsigned, std::allocator<wchar_t>
const&) ()
#1 0x082424dc in wchar_t* std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t>
>::_S_construct<wchar_t const*>(wchar_t const*,
wchar_t const*, std::allocator<wchar_t> const&,
std::forward_iterator_tag) (__beg=0x84b4bdc,
__end=0x84b4bf0,
__a=@0x41b5b50c) at
/usr/local/gcc-3.0.2/include/g++-v3/bits/basic_string.tcc:143
#2 0x082423bc in std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t>
>::basic_string(wchar_t const*,
std::allocator<wchar_t> const&) (this=0x41b5b60c,
__s=0x84b4bdc, __a=@0x41b5b50c)
at
/usr/local/gcc-3.0.2/include/g++-v3/bits/basic_string.h:666
#3 0x081fbb9f in toString(wchar_t const*)
(s=0x84b4bdc) at
/usr/local/gcc-3.0.2/include/g++-v3/bits/stl_alloc.h:571
#4 0x081fcb9e in
PropertyList::SetProperties(VXMLElement const&,
PropertyLevel, VXIMapHolder const&) (this=0x85c6fa4,
doc=@0x85c6f48, level=DIALOG_PROP,
docProps=@0x41b5b6cc) at
/usr/local/gcc-3.0.2/include/g++-v3/bits/stl_pair.h:84
---------------------------------------------------------------------------------------------------------
or
---------------------------------------------------------------------------------------------------------
#0 0x08243539 in std::__default_alloc_template<true,
0>::allocate(unsigned) (__n=24)
at
/usr/local/gcc-3.0.2/include/g++-v3/bits/stl_alloc.h:338
#1 0x082486c7 in
std::_Rb_tree_base<std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>, std::allocator<std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> > >
>
>::_Rb_tree_base(std::allocator<std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> > >
> const&) (this=0x49dfe12c,
__a=@0x49dfe10c) at
/usr/local/gcc-3.0.2/include/g++-v3/bits/stl_alloc.h:184
#2 0x081fec9d in
PropertyList::GetProperties(VXIMapHolder&) const
(this=0x47a62f3c, m=@0x49dfe33c)
at
/usr/local/gcc-3.0.2/include/g++-v3/bits/stl_tree.h:647
---------------------------------------------------------------------------------------------------------
or
---------------------------------------------------------------------------------------------------------
#0 0x42029241 in kill () from /lib/i686/libc.so.6
#1 0x400ccc4b in raise () from
/lib/i686/libpthread.so.0
#2 0x4202a7d2 in abort () from /lib/i686/libc.so.6
#3 0x40095405 in __cxxabiv1::__terminate(void (*)())
(handler=0x8055aa4 <abort>)
at
../../../../libstdc++-v3/libsupc++/eh_terminate.cc:47
#4 0x40095440 in __cxxabiv1::__unexpected(void (*)())
(handler=0x8386db0) at
../../../../libstdc++-v3/libsupc++/eh_terminate.cc:57
#5 0x400955b0 in __cxa_rethrow () at
../../../../libstdc++-v3/libsupc++/eh_throw.cc:77
#6 0x4005ce0a in std::__throw_length_error(char
const*) (__s=0x8273d51 "basic_string::_S_create")
at ../../../../libstdc++-v3/src/functexcept.cc:70
#7 0x0824265f in std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t>
>::_Rep::_S_create(unsigned, std::allocator<wchar_t>
const&) (__capacity=1176815353, __alloc=@0x4a9fddbc)
at
/usr/local/gcc-3.0.2/include/g++-v3/bits/basic_string.tcc:368
#8 0x08242568 in std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t>
>::_M_mutate(unsigned, unsigned, unsigned)
(this=0x4a9fde80, __pos=103073528, __len1=0, __len2=1)
at
/usr/local/gcc-3.0.2/include/g++-v3/bits/stl_alloc.h:572
#9 0x08242f8e in std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t>
>::replace(std::__normal_iterator<wchar_t*,
std::basic_string<wchar_t, std::char_traits<wchar_t>,
std::allocator<wchar_t> > >,
std::__normal_iterator<wchar_t*,
std::basic_string<wchar_t, std::char_traits<wchar_t>,
std::allocator<wchar_t> > >, unsigned, wchar_t)
(this=0x4a9fde80, __i1=
{<iterator<std::random_access_iterator_tag,wchar_t,int,wchar_t*,wchar_t&>>
= {<No data fields>}, _M_current = 0x5eb7e294},
__i2=
{<iterator<std::random_access_iterator_tag,wchar_t,int,wchar_t*,wchar_t&>>
= {<No data fields>}, _M_current = 0x5eb7e294},
__n2=1, __c=57) at
/usr/local/gcc-3.0.2/include/g++-v3/bits/basic_string.tcc:566
#10 0x08242ea6 in std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t>
>::append(unsigned, wchar_t) (
this=0x4a9fde80, __n=1, __c=57) at
/usr/local/gcc-3.0.2/include/g++-v3/bits/basic_string.h:254
#11 0x081dd391 in SBinetValidator::Serialize() const
(this=0x4a9fdf0c)
at
/usr/local/gcc-3.0.2/include/g++-v3/bits/basic_string.h:460
---------------------------------------------------------------------------------------------------------
or
---------------------------------------------------------------------------------------------------------
#0 std::_Rb_tree<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >,
std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>,
std::_Select1st<std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> > >
>, std::less<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>, std::allocator<std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> > >
>
>::insert_unique(std::_Rb_tree_iterator<std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>, std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>&, std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>*>, std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> > >
const&) (this=0x4b5fe12c, __position=0x4b5fe0ac,
__v=@0x4b5fe0cc) at
/usr/local/gcc-3.0.2/include/g++-v3/bits/basic_string.h:246
#1 0x081fed79 in
PropertyList::GetProperties(VXIMapHolder&) const
(this=0x44281064, m=@0x4b5fe33c)
at
/usr/local/gcc-3.0.2/include/g++-v3/bits/stl_tree.h:191
#2 0x08227e73 in
GrammarManager::GetRecProperties(PropertyList const&,
int) const (this=0x44281034, props=@0x44281064,
timeout=-1)
at GrammarManager.cpp:1014
---------------------------------------------------------------------------------------------------------
or
---------------------------------------------------------------------------------------------------------
0 std::_Rb_tree_rotate_left(std::_Rb_tree_node_base*,
std::_Rb_tree_node_base*&) (__x=0x47af89f8,
__root=@0x48a1ef0c)
at
/usr/local/gcc-3.0.2/include/g++-v3/bits/stl_tree.h:253
#1 0x08248458 in
std::_Rb_tree_rebalance(std::_Rb_tree_node_base*,
std::_Rb_tree_node_base*&) (__x=0x48a6e0c8,
__root=@0x48a1ef0c)
at
/usr/local/gcc-3.0.2/include/g++-v3/bits/stl_tree.h:323
#2 0x0824811a in
std::_Rb_tree<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >,
std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>,
std::_Select1st<std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> > >
>, std::less<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>, std::allocator<std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> > >
> >::_M_insert(std::_Rb_tree_node_base*,
std::_Rb_tree_node_base*,
std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> > >
const&) (this=0x4dcfdd6c,
__x_=0x0, __y_=0x47af83c0, __v=@0x4dcfdd0c) at
/usr/local/gcc-3.0.2/include/g++-v3/bits/stl_tree.h:866
#3 0x08247a85 in
std::_Rb_tree<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >,
std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>,
std::_Select1st<std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> > >
>, std::less<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>, std::allocator<std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> > >
>
>::insert_unique(std::_Rb_tree_iterator<std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>, std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>&, std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>*>, std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> > >
const&) (this=0x4dcfdd6c,
__position=0x4dcfdcec, __v=@0x4dcfdd0c) at
/usr/local/gcc-3.0.2/include/g++-v3/bits/stl_tree.h:941
#4 0x081fed79 in
PropertyList::GetProperties(VXIMapHolder&) const
(this=0x47d795dc, m=@0x4dcfdf7c)
at
/usr/local/gcc-3.0.2/include/g++-v3/bits/stl_tree.h:191
---------------------------------------------------------------------------------------------------------
or
---------------------------------------------------------------------------------------------------------
#0 std::_Rb_tree<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >,
std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>,
std::_Select1st<std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> > >
>, std::less<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>, std::allocator<std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> > >
>
>::insert_unique(std::_Rb_tree_iterator<std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>, std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>&, std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
>*>, std::pair<std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> >
const, std::basic_string<wchar_t,
std::char_traits<wchar_t>, std::allocator<wchar_t> > >
const&) (this=0x492fe12c, __position=0x492fe0ac,
__v=@0x492fe0cc) at
/usr/local/gcc-3.0.2/include/g++-v3/bits/basic_string.h:238
#1 0x081fed79 in
PropertyList::GetProperties(VXIMapHolder&) const
(this=0x48563eac, m=@0x492fe33c)
at
/usr/local/gcc-3.0.2/include/g++-v3/bits/stl_tree.h:191
#2 0x08227e73 in
GrammarManager::GetRecProperties(PropertyList const&,
int) const (this=0x48563e7c, props=@0x48563eac,
timeout=-1)
at GrammarManager.cpp:1014
---------------------------------------------------------------------------------------------------------
And I have more.
The software was build with gcc 3.0.2.
Any ideas?
Thanks!
Fred
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next reply other threads:[~2003-05-02 21:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-02 21:46 Fred Channey [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-05-05 11:46 John Love-Jensen
2003-05-02 21:36 Fred Channey
2003-04-08 16:16 jkanze
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