Python Segfault Error 4
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Segfault Error Codes
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Segfault At Rip Rsp Error 6
segfault in dmesg log? up vote 0 down vote favorite I have a Python daemon running on a 64-bit Linux box. It is crashing. Not a friendly, straightforward to debug, Python exception stack trace sort of crash, either-- this is a segmentation fault. Linux's dmesg log has a succinct post-mortem: python2.7[27509]: segfault at 7fe500000008 ip 00007fe56644a891 sp 00007fe54e1fa230 error 4 in libpython2.7.so.1.0[7fe566359000+193000] python2.7[23517]: segfault at 7f5600000008 segfault error 14 ip 00007f568bb45891 sp 00007f5678e55230 error 4 in libpython2.7.so.1.0[7f568ba54000+193000] libpython2.7.so.1.0 on this system has symbols and I can run objdump -d to get an assembly language dump. So I'm curious to know which function is causing the segfault. How can I decode one of these dmesg segfault notices and find the errant function? One line says "7fe566359000+193000" and the next says "7f568ba54000+193000". I'm guessing this means both segfaults come from the same location. 193000 = 0x2f1e8. I thought that 0x2f1e8 would lead to an instruction in the Python library assembly dump, but it didn't; 0x2f1e8 is well out of range of the disassembly. python linux gdb segmentation-fault objdump share|improve this question asked Jan 21 '14 at 22:03 Multimedia Mike 6,11621939 add a comment| 1 Answer 1 active oldest votes up vote 0 down vote That is the address from the base of the library load, so you should compare it with the load address of .text as returned by (for example) eu-readelf: flame@saladin ~ % eu-readelf -S /usr/lib/libpython2.7.so There are 25 section headers, starting at offset 0x1b1a80: Section Headers: [Nr] Name Type Addr Off Size ES Flags Lk Inf Al [ 0] NULL 0000000000000000 00000000 00000000 0
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Kernel Segfault At Rip Rsp Error 4
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Segfault Error 15
Chat Odoo Studio | Third party apps Tour Pricing Community Docs Odoo Help Welcome! This community is for dmesg segfault error 4 beginners and experts willing to share their Odoo knowledge. It's not a forum to discuss ideas, but a knowledge base of questions and their answers. Hide Intro Register Toggle navigation http://stackoverflow.com/questions/21269999/python-crashed-how-to-decode-segfault-in-dmesg-log Help Trending Newest People Tags Badges Ask a Question -1 segfault error in log file - how do I start troubleshooting that ? cron python2.7 failed dump pipe By amal on 8/3/15, 1:19 AM • 2,738 views HII got this error massage .and i did not find any Solution for it Suddenly odoo in the server does not run and i did https://www.odoo.com/forum/help-1/question/segfault-error-in-log-file-how-do-i-start-troubleshooting-that-89016 not know why Aug 1 11:33:40 odoo kernel: [4594248.334971] python[22204]: segfault at 24 ip 00000000005bb5ef sp 00007f33d67fedd0 error 6 in python2.7[400000+2bd000]odoo kernel: [4594248.334971] python[22204]: segfault at 24 ip 00000000005bb5ef sp 00007f33d67fedd0 error 6 in python2.7[400000+2bd000]Aug 1 11:33:41 odoo kernel: [4594248.938503] Core dump to |/usr/share/apport/apport 1143 11 0 1143 pipe failedAug 1 12:17:01 odoo CRON[22409]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)Aug 1 13:17:01 odoo CRON[23495]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)*odoo is name of the database Flag Reply Comment Share Post 1 Ahmed M.Elmubarak --Ahmed M.Elmubarak-- Odoo Inc. http://www.odoo.com 2763 | 5 3 5 Sudan --Ahmed M.Elmubarak-- Ahmed M.Elmubarak On 8/3/15, 10:39 AM Hello,I don't know the answer but I found these links may related to your question link , link2 Thanks Flag Comment Post Your Answer Please try to give a substantial answer. If you wanted to comment on the question or answer, just use the commenting tool. Please remember that you can always revise your answers - no need to answer the same question twice. Also, please don't forget to vote - it really helps t
Programming, Systems, Leadership and /random June 30, 2008 http://jessenoller.com/blog/2008/06/30/does-anyone-know-what-this-error-is-segfault Does anyone know what this error is? (Segfault) ... nevermind by jesse in Programming, Python Ok, I'm at the end of my sanity. I'm finally over the hell-death which is hand, foot and mouth (courtesy of my daughter) which means I can type segfault error again, and now I'm stuck trying to debug some dastardly segfault. Here is it (courtesy of /var/log/messages): Jun 30 12:49:13 NON kernel: python[29965]: segfault at 000000010000000f rip 000000000044068e rsp 00002aabea0294b0 error 4 This is on a 64 bit machine. The application is heavily, segfault error 4 heavily threaded python using queues for inter-thread communication, and the threads are using libcurl via pycurl under that. I get no exceptions, no errors: Nothing. The interpreter simply dies. If I attach an strace to it, I see this: futex(0x2e4a6300, FUTEX_WAKE, 1) = 0 futex(0x2e4a6300, FUTEX_WAKE, 1) = 0 futex(0x2aaaac10cab0, FUTEX_WAIT, 0, NULL) = -1 EINTR (Interrupted system call) --- SIGALRM (Alarm clock) @ 0 (0) --- rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 --- SIGSEGV (Segmentation fault) @ 0 (0) --- Any ideas? Edit: Never mind, I finally found the answer... I removed: curl.setopt(pycurl.CONNECTTIMEOUT, 120) After reading this mail thread, and the code now flies. I love life. Previous PostFuzzing Python Next PostPython Magazine for ... This work is licensed under aCreative Commons Attribution-NonCommercial-NoDerivs 3.0 United States License.