From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 21322 invoked by alias); 1 Feb 2016 05:36:08 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 21312 invoked by uid 89); 1 Feb 2016 05:36:07 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-0.1 required=5.0 tests=AWL,BAYES_00,FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM,KAM_ASCII_DIVIDERS,RCVD_IN_DNSWL_LOW,RP_MATCHES_RCVD,SPF_PASS autolearn=ham version=3.3.2 spammy=sk:unwind, sk:unwind-, H*r:ip*65.55.116.46, H*RU:65.55.116.46 X-HELO: BLU004-OMC1S35.hotmail.com Received: from blu004-omc1s35.hotmail.com (HELO BLU004-OMC1S35.hotmail.com) (65.55.116.46) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES256-SHA256 encrypted) ESMTPS; Mon, 01 Feb 2016 05:36:04 +0000 Received: from BLU170-W78 ([65.55.116.9]) by BLU004-OMC1S35.hotmail.com over TLS secured channel with Microsoft SMTPSVC(7.5.7601.23008); Sun, 31 Jan 2016 21:36:02 -0800 X-TMN: [2gJt+SZGzB7QJgm3/AiCCgO784EtE+FX] Message-ID: From: Maarten Jacobs To: "cygwin@cygwin.com" CC: "Martens, Robert EY28737" Subject: RE: Python stackdump on "succesful" exit after import of python-requests Date: Mon, 01 Feb 2016 05:36:00 -0000 In-Reply-To: References: <7dd1bf85a74041df90f65fb31e9279fe@DG4MBX01-WYN.bell.corp.bce.ca>,, Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-IsSubscribed: yes X-SW-Source: 2016-02/txt/msg00002.txt.bz2 I installed the debug version of gcc and the traceback became a little more= readable: (gdb) bt #0 =A00x66b73de4 in Py_Exit () at /usr/src/debug/python-2.7.10-1/Python/pyt= honrun.c:1780 #1 =A00x76e8e091 in WaitForSingleObjectEx () from /cygdrive/c/WINDOWS/SYSTE= M32/KERNELBASE.dll #2 =A00x76e8dff2 in WaitForSingleObject () from /cygdrive/c/WINDOWS/SYSTEM3= 2/KERNELBASE.dll #3 =A00x610f2730 in sig_send(_pinfo*, siginfo_t&, _cygtls*)@12 (p=3Dp@entry= =3D0x60fd0000, si=3D..., tls=3Dtls@entry=3D0x0) at /usr/src/debug/cygwin-2.= 4.1-1/winsup/cygwin/sigproc.cc:716 #4 =A00x610ef4cc in _pinfo::kill(siginfo_t&)@8 (this=3D0x60fd0000, si=3D...= ) at /usr/src/debug/cygwin-2.4.1-1/winsup/cygwin/signal.cc:252 #5 =A00x610ef9d8 in kill0 (pid=3Dpid@entry=3D4080, si=3D...) at /usr/src/de= bug/cygwin-2.4.1-1/winsup/cygwin/signal.cc:303 #6 =A00x610efbb2 in kill (sig=3Dsig@entry=3D6, pid=3D4080) at /usr/src/debu= g/cygwin-2.4.1-1/winsup/cygwin/signal.cc:312 #7 =A0raise (sig=3Dsig@entry=3D6) at /usr/src/debug/cygwin-2.4.1-1/winsup/c= ygwin/signal.cc:288 #8 =A00x610efe79 in abort () at /usr/src/debug/cygwin-2.4.1-1/winsup/cygwin= /signal.cc:375 #9 =A00x6deb43c1 in __deregister_frame_info_bases (begin=3D0x6e200000) at /= usr/src/debug/gcc-4.9.3-1/libgcc/unwind-dw2-fde.c:216 #10 0x6e1e10e2 in ?? () from /usr/bin/cygexpat-1.dll #11 0x61028bb7 in per_module::run_dtors (this=3D0x6130d6c0) at /usr/src/deb= ug/cygwin-2.4.1-1/winsup/cygwin/dll_init.cc:81 #12 dll::run_dtors (this=3D0x6130d6b8) at /usr/src/debug/cygwin-2.4.1-1/win= sup/cygwin/dll_init.h:72 #13 dll_global_dtors () at /usr/src/debug/cygwin-2.4.1-1/winsup/cygwin/dll_= init.cc:53 #14 0x6118d64d in __call_exitprocs (code=3Dcode@entry=3D0, d=3Dd@entry=3D0x= 0) at /usr/src/debug/cygwin-2.4.1-1/newlib/libc/stdlib/__call_atexit.c:118 #15 0x6114ae88 in exit (code=3D0) at /usr/src/debug/cygwin-2.4.1-1/newlib/l= ibc/stdlib/exit.c:66 #16 0x61006e79 in cygwin_exit (n=3D0) at /usr/src/debug/cygwin-2.4.1-1/wins= up/cygwin/dcrt0.cc:1337 #17 0x610ebf85 in _sigfe () at sigfe.s:38 #18 0x66b73de4 in Py_Exit (sts=3Dsts@entry=3D0) at /usr/src/debug/python-2.= 7.10-1/Python/pythonrun.c:1780 #19 0x66ba5281 in handle_system_exit () at /usr/src/debug/python-2.7.10-1/P= ython/pythonrun.c:1152 #20 0x66b7413e in handle_system_exit () at /usr/src/debug/python-2.7.10-1/P= ython/pythonrun.c:1193 #21 PyErr_PrintEx (set_sys_last_vars=3Dset_sys_last_vars@entry=3D1) at /usr= /src/debug/python-2.7.10-1/Python/pythonrun.c:1162 #22 0x66b74bc7 in PyErr_Print () at /usr/src/debug/python-2.7.10-1/Python/p= ythonrun.c:1065 #23 PyRun_SimpleFileExFlags (fp=3D, filename=3D0x60cc5c "gen= erator.py", closeit=3D1, flags=3D0x60cb5c) at /usr/src/debug/python-2.7.10-= 1/Python/pythonrun.c:953 #24 0x66b8ae9e in Py_Main (argc=3Dargc@entry=3D4, argv=3Dargv@entry=3D0x60c= c1c) at /usr/src/debug/python-2.7.10-1/Modules/main.c:640 #25 0x00401750 in main (argc=3D4, argv=3D0x60cc1c) at /usr/src/debug/python= -2.7.10-1/Modules/python.c:23 (gdb) up 9 #9 =A00x6deb43c1 in __deregister_frame_info_bases (begin=3D0x6e200000) at /= usr/src/debug/gcc-4.9.3-1/libgcc/unwind-dw2-fde.c:216 216 =A0 =A0 =A0 gcc_assert (ob); (gdb) So looks like the problem occurs on an "assert". I need to dig further into= this - but that's for tomorrow / later this week. Thanks, Maarten Jacobs ---------------------------------------- > From: maarten256@hotmail.com > To: cygwin@cygwin.com > CC: robert.martens@bell.ca > Subject: RE: Python stackdump on "succesful" exit after import of python-= requests > Date: Sun, 31 Jan 2016 23:55:14 -0500 > > I realized that for me, the "work-around" to use python3 was not practica= l, so I am back to analyzing this problem... And not making much progress. = Some help/assistance would be appreciated! > > I got the following traceback: > > (gdb) r generator.py libvirt /usr/share/libvirt/api/libvirt-api.xml > Starting program: /usr/bin/python generator.py libvirt /usr/share/libvirt= /api/libvirt-api.xml > [New Thread 7028.0xb4] > [New Thread 7028.0x1998] > [New Thread 7028.0x1070] > [New Thread 7028.0x15d8] > [New Thread 7028.0x1d38] > > Found 406 functions in /usr/share/libvirt/api/libvirt-api.xml > Found 0 functions in libvirt-override-api.xml > Generated 338 wrapper functions > > Program received signal SIGABRT, Aborted. > 0x66b73de4 in Py_Exit () at /usr/src/debug/python-2.7.10-1/Python/pythonr= un.c:1780 > 1780 exit(sts); > (gdb) bt > #0 0x66b73de4 in Py_Exit () at /usr/src/debug/python-2.7.10-1/Python/pyth= onrun.c:1780 > #1 0x76e8e091 in WaitForSingleObjectEx () from /cygdrive/c/WINDOWS/SYSTEM= 32/KERNELBASE.dll > #2 0x76e8dff2 in WaitForSingleObject () from /cygdrive/c/WINDOWS/SYSTEM32= /KERNELBASE.dll > #3 0x610f2730 in sig_send(_pinfo*, siginfo_t&, _cygtls*)@12 (p=3Dp@entry= =3D0x60fd0000, si=3D..., tls=3Dtls@entry=3D0x0) at /usr/src/debug/cygwin-2.= 4.1-1/winsup/cygwin/sigproc.cc:716 > #4 0x610ef4cc in _pinfo::kill(siginfo_t&)@8 (this=3D0x60fd0000, si=3D...)= at /usr/src/debug/cygwin-2.4.1-1/winsup/cygwin/signal.cc:252 > #5 0x610ef9d8 in kill0 (pid=3Dpid@entry=3D7028, si=3D...) at /usr/src/deb= ug/cygwin-2.4.1-1/winsup/cygwin/signal.cc:303 > #6 0x610efbb2 in kill (sig=3Dsig@entry=3D6, pid=3D7028) at /usr/src/debug= /cygwin-2.4.1-1/winsup/cygwin/signal.cc:312 > #7 raise (sig=3Dsig@entry=3D6) at /usr/src/debug/cygwin-2.4.1-1/winsup/cy= gwin/signal.cc:288 > #8 0x610efe79 in abort () at /usr/src/debug/cygwin-2.4.1-1/winsup/cygwin/= signal.cc:375 > #9 0x6deb43c1 in cyggcc_s-1!.deregister_frame_info_bases () from /usr/bin= /cyggcc_s-1.dll > #10 0x6e1e10e2 in ?? () from /usr/bin/cygexpat-1.dll > #11 0x61028bb7 in per_module::run_dtors (this=3D0x6130d980) at /usr/src/d= ebug/cygwin-2.4.1-1/winsup/cygwin/dll_init.cc:81 > #12 dll::run_dtors (this=3D0x6130d978) at /usr/src/debug/cygwin-2.4.1-1/w= insup/cygwin/dll_init.h:72 > #13 dll_global_dtors () at /usr/src/debug/cygwin-2.4.1-1/winsup/cygwin/dl= l_init.cc:53 > #14 0x6118d64d in __call_exitprocs (code=3Dcode@entry=3D0, d=3Dd@entry=3D= 0x0) at /usr/src/debug/cygwin-2.4.1-1/newlib/libc/stdlib/__call_atexit.c:118 > #15 0x6114ae88 in exit (code=3D0) at /usr/src/debug/cygwin-2.4.1-1/newlib= /libc/stdlib/exit.c:66 > #16 0x61006e79 in cygwin_exit (n=3D0) at /usr/src/debug/cygwin-2.4.1-1/wi= nsup/cygwin/dcrt0.cc:1337 > #17 0x610ebf85 in _sigfe () at sigfe.s:38 > #18 0x66b73de4 in Py_Exit (sts=3Dsts@entry=3D0) at /usr/src/debug/python-= 2.7.10-1/Python/pythonrun.c:1780 > #19 0x66ba5281 in handle_system_exit () at /usr/src/debug/python-2.7.10-1= /Python/pythonrun.c:1152 > #20 0x66b7413e in handle_system_exit () at /usr/src/debug/python-2.7.10-1= /Python/pythonrun.c:1193 > #21 PyErr_PrintEx (set_sys_last_vars=3Dset_sys_last_vars@entry=3D1) at /u= sr/src/debug/python-2.7.10-1/Python/pythonrun.c:1162 > #22 0x66b74bc7 in PyErr_Print () at /usr/src/debug/python-2.7.10-1/Python= /pythonrun.c:1065 > #23 PyRun_SimpleFileExFlags (fp=3D, filename=3D0x60cc5c "g= enerator.py", closeit=3D1, flags=3D0x60cb5c) at /usr/src/debug/python-2.7.1= 0-1/Python/pythonrun.c:953 > #24 0x66b8ae9e in Py_Main (argc=3Dargc@entry=3D4, argv=3Dargv@entry=3D0x6= 0cc1c) at /usr/src/debug/python-2.7.10-1/Modules/main.c:640 > #25 0x00401750 in main (argc=3D4, argv=3D0x60cc1c) at /usr/src/debug/pyth= on-2.7.10-1/Modules/python.c:23 > > I'm used to looking at tracebacks from C++ executables, so most of this f= eels familiar. > > It would appear that deregister_frame_info_bases () (on #9) causes the ab= ort to happen. As far as I have been able to figure out, all of this happen= s while the instance of Python is being shut down. > > This is also not a new problem, as this was apparently already reported i= n November of 2014: > > http://readlist.com/lists/cygwin.com/cygwin/15/75280.html > > Unfortunately that thread does not go any further than what is also appar= ent from my traceback. > > Does anybody have suggestions on how to further debug this issue? > > Thanks, > > Maarten Jacobs > >> From: maarten256@hotmail.com >> To: robert.martens@bell.ca; cygwin@cygwin.com >> Subject: RE: Python stackdump on "succesful" exit after import of python= -requests >> Date: Sat, 30 Jan 2016 18:21:45 -0500 >> >> Interesting - I had the same issue earlier this week; I worked around it= by using python3 instead, which didn't cause the same issue. (I figured it= was just me not doing something right). >> >> Obviously that doesn't explain the behavior but I didn't have time to fu= rther investigate the issue with python 2.7. >> >> I ran into the issue when I was trying to build libvirt-python on Cygwin. >> >> I'd be curious to know what the real root cause for this abort is. >> >> Thanks, >> >> Maarten Jacobs >> >> ---------------------------------------- >> From: robert.martens@bell.ca >> To: cygwin@cygwin.com >> Subject: Python stackdump on "succesful" exit after import of python-req= uests >> Date: Fri, 29 Jan 2016 21:38:54 +0000 >> >> >> Hello, >> I am having a strange issue with Python 2.7 on cygwin. >> Whenever a script of mine imports 'requests' (python-requests installed = via cygwin installer), after it closes I get an "Aborted" message and a sta= ck dump. >> >> This consistently causes the issue: >> $ python >> Python 2.7.10 (default, Jun 1 2015, 18:17:45) >> [GCC 4.9.2] on cygwin >> Type "help", "copyright", "credits" or "license" for more information. >>>>> import requests >>>>> exit() >> Aborted (core dumped) >> >> And here is the stackdump >> $ cat python2.7.exe.stackdump >> Stack trace: >> Frame Function Args >> 0028C868 61033A23 (00000244, 0000EA60, 000000A4, 0028C8D8) >> 0028C998 610F27E2 (000000C8, 000000CC, 000000B8, 6111295F) >> >> This is what gdb says: >> (gdb) r >> Starting program: /usr/bin/python >> [New Thread 8744.0x1ca0] >> [New Thread 8744.0x24f4] >> [New Thread 8744.0x192c] >> [New Thread 8744.0x11f0] >> Python 2.7.10 (default, Jun 1 2015, 18:17:45) >> [GCC 4.9.2] on cygwin >> Type "help", "copyright", "credits" or "license" for more information. >>>>> import requests >> [New Thread 8744.0x2380] >>>>> quit() >> >> Program received signal SIGABRT, Aborted. >> 0x65c63de4 in Py_Exit () at /usr/src/debug/python-2.7.10-1/Python/python= run.c:1780 >> 1780 exit(sts); >> (gdb) bt >> #0 0x65c63de4 in Py_Exit () at /usr/src/debug/python-2.7.10-1/Python/pyt= honrun.c:1780 >> #1 0x770ff8d1 in ntdll!ZwWaitForSingleObject () from /cygdrive/c/Windows= /SysWOW64/ntdll.dll >> #2 0x765014b9 in WaitForSingleObjectEx () from /cygdrive/c/Windows/syswo= w64/KERNELBASE.dll >> #3 0x000002f8 in ?? () >> #4 0x00000000 in ?? () >> (gdb) continue >> Continuing. >> [New Thread 8744.0x25c4] >> 3 [main] python2.7 8744 cygwin_exception::open_stackdumpfile: Dumping st= ack trace to python2.7.exe.stackdump >> [Thread 8744.0x24f4 exited with code 34304] >> [Thread 8744.0x25c4 exited with code 34304] >> [Thread 8744.0x2380 exited with code 34304] >> [Thread 8744.0x192c exited with code 34304] >> [Inferior 1 (process 8744) exited with code 0103000] >> >> Any ideas? >> >> Thanks, >> Robert Martens >> ADMS >> >> >> -- >> Problem reports: http://cygwin.com/problems.html >> FAQ: http://cygwin.com/faq/ >> Documentation: http://cygwin.com/docs.html >> Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple >> >> -- >> Problem reports: http://cygwin.com/problems.html >> FAQ: http://cygwin.com/faq/ >> Documentation: http://cygwin.com/docs.html >> Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple >> > > -- > Problem reports: http://cygwin.com/problems.html > FAQ: http://cygwin.com/faq/ > Documentation: http://cygwin.com/docs.html > Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple > =20=09=09=20=09=20=20=20=09=09=20=20 -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple