Recent changes to bugs

options can't parse --rz=blah-blah

Petr Ovtchenkov — Fri, 05 Jun 2009 16:25:17 -0000

libmisc, options: parser fail to recognize --rz=blah-blah. Test for problem in commit 43675c6.

Suspected that z is last letter ...

possible call of virtual function, when situated in dtor

Petr Ovtchenkov — Thu, 04 Jun 2009 19:46:05 -0000

Problem in:

1. in thread 1 access to object's virtual (!) function from EvManager,

object->Dispatch()

2. in thread 2 object go to dtor (dtor not finished of cause, it safe from 'access' point of view --- object will be destroyed after during EventHandler's dtor).

Reason of problem: I can't access object's virtual methods when situated in ctor or dtor.

Stack:

Program terminated with signal 11, Segmentation fault.
[New process 13587]
[New process 13586]
[New process 13585]
[New process 13577]
[New process 13603]
#0 0xb7f1b372 in stem::NetTransport_base::Dispatch (this=0x9acffa0, _rs=@0x9b01d40)
at NetTransport.cc:326
326 if ( !net.good() ) {
(gdb) bt
#0 0xb7f1b372 in stem::NetTransport_base::Dispatch (this=0x9acffa0, _rs=@0x9b01d40)
at NetTransport.cc:326
#1 0xb7f2463a in stem::EvManager::Send (this=0x9ace7d8, e=@0x9b01d40) at EvManager.cc:374
#2 0xb7f2651a in stem::EvManager::_Dispatch (p=0x9ace7d8) at EvManager.cc:94
#3 0xb7f30e9a in stlp_std::tr2::basic_thread<0u, 0u>::_call<void (*)(stem::EvManager*), stem::EvManager*> (p=0x9ace910) at ../../include/mt/thread:479
#4 0xb79ba4b1 in start_thread () from /lib/libpthread.so.0
#5 0xb793eb1e in clone () from /lib/libc.so.6
(gdb) info threads
5 process 13603 0xb7fc4424 in __kernel_vsyscall ()
4 process 13577 0xb7fc4424 in __kernel_vsyscall ()
3 process 13585 0xb7fc4424 in __kernel_vsyscall ()
2 process 13586 0xb7fc4424 in __kernel_vsyscall ()
* 1 process 13587 0xb7f1b372 in stem::NetTransport_base::Dispatch (this=0x9acffa0, _rs=@0x9b01d40)
at NetTransport.cc:326
(gdb) thread 2
[Switching to thread 2 (process 13586)]#0 0xb7fc4424 in __kernel_vsyscall ()
(gdb) bt
#0 0xb7fc4424 in __kernel_vsyscall ()
#1 0xb79be7f4 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2 0x080b0ee3 in stlp_std::tr2::__condition_variable<false>::wait<false> (this=0xbfcdfaec,
lock=@0xb6273344) at ../../../complement/explore/include/mt/condition_variable:105
#3 0x080b0fac in stlp_std::tr2::__condition_variable<false>::wait<false, stlp_std::connect_processor<stem::NetTransport, char, stlp_std::char_traits<char>, stlp_std::allocator<char>, &(stem::NetTransport::connect(stlp_std::basic_sockstream<char, stlp_std::char_traits<char>, stlp_std::allocator<char> >&))>::_not_empty> (this=0xbfcdfaec, lock=@0xb6273344, pred={me = @0xbfcdf9f4})
at ../../../complement/explore/include/mt/condition_variable:117
#4 0x080b9a0f in stlp_std::connect_processor<stem::NetTransport, char, stlp_std::char_traits<char>, stlp_std::allocator<char>, &(stem::NetTransport::connect(stlp_std::basic_sockstream<char, stlp_std::char_traits<char>, stlp_std::allocator<char> >&))>::worker (this=0xbfcdf9f4)
at ../../../complement/explore/include/sockios/socksrv.cc:285
#5 0x080b9f01 in stlp_std::connect_processor<stem::NetTransport, char, stlp_std::char_traits<char>, stlp_std::allocator<char>, &(stem::NetTransport::connect(stlp_std::basic_sockstream<char, stlp_std::char_traits<char>, stlp_std::allocator<char> >&))>::loop (me=0xbfcdf9f4)
at ../../../complement/explore/include/sockios/socksrv.h:286
#6 0x080b24e0 in stlp_std::tr2::basic_thread<0u, 0u>::_call<void (*)(stlp_std::connect_processor<stem::NetTransport, char, stlp_std::char_traits<char>, stlp_std::allocator<char>, &(stem::NetTransport::connect(stlp_std::basic_sockstream<char, stlp_std::char_traits<char>, stlp_std::allocator<char> >&))>*), stlp_std::connect_processor<stem::NetTransport, char, stlp_std::char_traits<char>, stlp_std::allocator<char>, &(stem::NetTransport::connect(stlp_std::basic_sockstream<char, stlp_std::char_traits<char>, stlp_std::allocator<char> >&))>*> (p=0xbfcdfb4c) at ../../../complement/explore/include/mt/thread:479
#7 0xb79ba4b1 in start_thread () from /lib/libpthread.so.0
#8 0xb793eb1e in clone () from /lib/libc.so.6
(gdb) thread 3
[Switching to thread 3 (process 13585)]#0 0xb7fc4424 in __kernel_vsyscall ()
(gdb) bt
#0 0xb7fc4424 in __kernel_vsyscall ()
#1 0xb793f336 in epoll_wait () from /lib/libc.so.6
#2 0x080b944b in stlp_std::detail::sockmgr<char, stlp_std::char_traits<char>, stlp_std::allocator<char> >::io_worker (this=0x9acf518) at ../../../complement/explore/include/sockios/sockmgr.cc:196
#3 0x080b99bd in stlp_std::detail::sockmgr<char, stlp_std::char_traits<char>, stlp_std::allocator<char> >::_loop (me=0x9acf518) at ../../../complement/explore/include/sockios/sockmgr.h:147
#4 0x080b241c in stlp_std::tr2::basic_thread<0u, 0u>::_call<void (*)(stlp_std::detail::sockmgr<char, stlp_std::char_traits<char>, stlp_std::allocator<char> >*), stlp_std::detail::sockmgr<char, stlp_std::char_traits<char>, stlp_std::allocator<char> >*> (p=0x9acf2e0)
at ../../../complement/explore/include/mt/thread:479
#5 0xb79ba4b1 in start_thread () from /lib/libpthread.so.0
#6 0xb793eb1e in clone () from /lib/libc.so.6
(gdb) thread 4
[Switching to thread 4 (process 13577)]#0 0xb7fc4424 in __kernel_vsyscall ()
(gdb) bt
#0 0xb7fc4424 in __kernel_vsyscall ()
#1 0xb79c1dd6 in nanosleep () from /lib/libpthread.so.0
#2 0xb7fb454b in stlp_std::tr2::this_thread::sleep (rel_t=@0xbfcdf040) at thread.cc:546
#3 0x080ba16e in stlp_std::tr2::this_thread::sleep<stlp_std::tr2::milliseconds> (rel_t=@0xbfcdf22c)
at ../../../complement/explore/include/mt/thread:640
#4 0xb7db81a4 in ~MetaBaseSet (this=0x9ace360) at mbset.cc:293
#5 0xb7db0b26 in wh::stop_metabase_server () at mbset.cc:1120
#6 0x0809ff8a in comm_test::get_request_flood (this=0xbfce0c7e, __exam_ts=0xbfce0bf8, __exam_counter=0)
at comm_test.cc:820
#7 0x080c0852 in exam::detail::method_invoker<comm_test>::operator() (this=0x9acdf4c, ts=0xbfce0bf8,
count=0) at ../../../complement/explore/include/exam/suite.h:96
#8 0x080c0876 in exam::detail::call_impl_t<exam::detail::method_invoker<comm_test> >::invoke (
this=0x9acdf48, s=0xbfce0bf8, count=0) at ../../../complement/explore/include/exam/suite.h:55
#9 0xb7f777c2 in exam::detail::call::operator() (this=0x9acdf48, ts=0xbfce0bf8, count=0)
at ../../include/exam/suite.h:120
#10 0xb7f77859 in exam::detail::test_case::operator() (this=0x9acdf48, ts=0xbfce0bf8, count=0)
at ../../include/exam/suite.h:139
#11 0xb7f75bf4 in exam::test_suite::run_test_case (this=0xbfce0bf8, v=9, n=0) at suite.cc:255
#12 0xb7f766e0 in exam::test_suite::girdle (this=0xbfce0bf8, start=0) at suite.cc:103
#13 0x080c521f in exam::test_suite::girdle (this=0xbfce0bf8)
at ../../../complement/explore/include/exam/suite.h:198
#14 0x080be8e2 in main (argc=1, argv=0xbfce1094) at test_suite.cc:114
(gdb) thread 5
[Switching to thread 5 (process 13603)]#0 0xb7fc4424 in __kernel_vsyscall ()
(gdb) bt
#0 0xb7fc4424 in __kernel_vsyscall ()
#1 0xb78ef866 in gettimeofday () from /lib/libc.so.6
#2 0xb7fb96f0 in stlp_std::tr2::get_system_time () at date_time.cc:85
#3 0xb7f38c85 in stem::Cron::_loop (p=0x9ace3cc) at Cron.cc:214
#4 0xb7f3d798 in stlp_std::tr2::basic_thread<0u, 0u>::_call<void (*)(stem::Cron*), stem::Cron*> (
p=0x9ad0288) at ../../include/mt/thread:479
#5 0xb79ba4b1 in start_thread () from /lib/libpthread.so.0
#6 0xb793eb1e in clone () from /lib/libc.so.6

Too many NetTransport_base::_close

Petr Ovtchenkov — Fri, 29 May 2009 14:36:47 -0000

On destruction of NetTransportMgr a few NetTransport_base::_close calls:

NetTransport_base::_close 5a37762d-6397-4113-830b-cdea0b5562b9
NetTransport_base::_close 5a37762d-6397-4113-830b-cdea0b5562b9
NetTransportMgr 5a37762d-6397-4113-830b-cdea0b5562b9 loop exit
NetTransport_base::_close 5a37762d-6397-4113-830b-cdea0b5562b9
NetTransport_base::_close 5a37762d-6397-4113-830b-cdea0b5562b9

Oh, 4 calls for _NetTransport_base::close... not good.

sockios not pass unit test

Petr Ovtchenkov — Tue, 24 Oct 2006 06:15:15 -0000

libsockios not pass unit tests in stldbg mode.
Stack:

#0 0xffffe410 in __kernel_vsyscall ()
#1 0xa7cfd288 in pthread_join ()
from /lib/libpthread.so.0
#2 0xa7f13dc0 in xmt::Thread::join (this=0x80c38f8)
at xmt.cc:497
#3 0xa7f1c2dd in ~ThreadMgr (this=0xafd39a0c) at
thr_mgr.cc:38
#4 0x0809beb5 in ~sockmgr_stream_MP
(this=0xafd39820) at sockmgr.h:192
#5 0x08097cca in test_read0_srv () at
read0_on_exec.cc:236
#6 0x0805f711 in
boost::unit_test::ut_detail::invoker<boost::unit_test::ut_detail::unused>::invoke<void
(*)()> (this=0xafd3a027, f=@0x80c08ac) at
callback.hpp:56
#7 0x0805f73a in
boost::unit_test::ut_detail::callback0_impl_t<boost::unit_test::ut_detail::unused,
void (*)()>::invoke (this=0x80c08a8) at
callback.hpp:89
#8 0xa7eb93bc in
boost::unit_test::callback0<boost::unit_test::ut_detail::unused>::operator()
(
this=0x80c0920) at callback.hpp:118
#9 0xa7eb93f0 in boost::unit_test::(anonymous
namespace)::zero_return_wrapper::operator() (
this=0x80c0a14) at unit_test_monitor.ipp:39
#10 0xa7eb941b in
boost::unit_test::ut_detail::invoker<int>::invoke<boost::unit_test::
(anonymous namespace)::zero_return_wrapper>
(this=0xafd3a0a3, f=@0x80c0a14) at callback.hpp:42
#11 0xa7eb9449 in
boost::unit_test::ut_detail::callback0_impl_t<int,
boost::unit_test::(anonymous
namespace)::zero_return_wrapper>::invoke
(this=0x80c0a10) at callback.hpp:89
#12 0xa7e9caa1 in
boost::unit_test::callback0<int>::operator()
(this=0xafd3a7ac) at callback.hpp:118
#13 0xa7e9b4de in
boost::execution_monitor::catch_signals
(this=0xa7ef6654, F=@0xafd3a7ac,
catch_system_errors=true, timeout=0) at
execution_monitor.ipp:428
#14 0xa7e9b9e7 in boost::execution_monitor::execute
(this=0xa7ef6654, F=@0xafd3a7ac,
catch_system_errors=true, timeout=0) at
execution_monitor.ipp:225
#15 0xa7eb8efa in
boost::unit_test::unit_test_monitor_t::execute_and_translate
(this=0xa7ef6654,
tc=@0x80c08d0) at unit_test_monitor.ipp:56
#16 0xa7ea8685 in
boost::unit_test::framework_impl::visit
(this=0xa7ef65e0, tc=@0x80c08d0)
at framework.ipp:100
#17 0xa7ecf2bc in
boost::unit_test::traverse_test_tree (tc=@0x80c08d0,
V=@0xa7ef65e0)
at unit_test_suite.ipp:154
#18 0xa7ecff13 in
boost::unit_test::traverse_test_tree (id=65556,
V=@0xa7ef65e0)
at unit_test_suite.ipp:196
#19 0xa7ecf96e in
boost::unit_test::traverse_test_tree
(suite=@0x80bf500, V=@0xa7ef65e0)
at unit_test_suite.ipp:167
#20 0xa7ecff31 in
boost::unit_test::traverse_test_tree (id=1,
V=@0xa7ef65e0) at unit_test_suite.ipp:198
#21 0xa7e9e358 in boost::unit_test::framework::run
(id=1, continue_test=true) at framework.ipp:324
#22 0xa7eb8c3b in main (argc=Cannot access memory at
address 0x0
) at unit_test_main.ipp:49
#23 0xa7be8e00 in __libc_start_main ()
from /lib/libc.so.6
#24 0x08056501 in _start ()

(read0 test)