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From: John K. <Joh...@be...> - 2020-02-03 19:51:46
|
Hi John, Thanks for the thoughtful analysis and suggestions on this issue. Unfortunately, I cannot run one CCSP app by itself all of the CCSP apps are necessary and work together. I was running valgrind on only one ccsp app, but when asking valgrind to track-origins, I guess it needed a lot more memory. I am hoping to get a different router which has more memory now that I know what the issue is. Thanks for your help! John From: John Reiser <jr...@bi...> Sent: Thursday, January 30, 2020 9:56 PM To: val...@li... Subject: Re: [Valgrind-users] Valgrind Internal Error: Valgrind received a signal 11 (SIGSEGV) - exiting > 3. How much physical RAM? How much swap space? (The string "out_of_memory" appears in the output.) > > JK - [ 0.000000] Memory: 495376K/507904K available (5078K kernel code, 420K rwdata, 1704K rodata, 208K init, 328K bss, 12528K reserved, 0K highmem) > > Not sure how to get swap space. Run /usr/bin/top, which gives other useful statistics about resources, too. On a 32-bit ARM RaspberryPi model 2 with 1GB RAM the output might begin like this for an "idle" machine: ===== Tasks: 84 total, 1 running, 83 sleeping, 0 stopped, 0 zombie %Cpu(s): 0.1 us, 0.1 sy, 0.0 ni, 99.8 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st MiB Mem : 924.1 total, 582.1 free, 66.0 used, 276.0 buff/cache MiB Swap: 0.0 total, 0.0 free, 0.0 used. 830.5 avail Mem ===== > > > 4. Was valgrind essentially the only process running? > > JK - Definitely not. The TR069 consists of a whole family of CCSP processes that communicate to each other via DBUS. The TR069PA was however the only process running via valgrind > > 5. How many threads? > > JK - 4 threads per CCSP process, including the one running valgrind. So there are many CCSP processes, plus other processes, running on a box with 512 megaBytes of RAM and no swap space. Remember that a process running valgrind (memcheck) requires about 2 to 3 times the memory of a non-checked process. You have exhausted the available RAM. The "out of memory" string was a clue. Reduce the number and size of simultaneous CCSP processes. Reduce the number and size non-CCSP processes. Run valgrind (memcheck) only on the one CCSP process that really interests you. Do not use --trace-children=yes. Instead, make CcspTr069PaSsp into an executable "wrapper" shell script which identifies the correct instance (perhaps by count of invocations), then runs valgrind on a saved copy of the original CcspTr069PaSsp; else just runs the saved copy without valgrind. _______________________________________________ Valgrind-users mailing list Val...@li...<mailto:Val...@li...> https://lists.sourceforge.net/lists/listinfo/valgrind-users<https://lists.sourceforge.net/lists/listinfo/valgrind-users> __________________________________________________________________ Confidential This e-mail and any files transmitted with it are the property of Belkin International, Inc. and/or its affiliates, are confidential, and are intended solely for the use of the individual or entity to whom this e-mail is addressed. If you are not one of the named recipients or otherwise have reason to believe that you have received this e-mail in error, please notify the sender and delete this message immediately from your computer. Any other use, retention, dissemination, forwarding, printing or copying of this e-mail is strictly prohibited. Pour la version fran?aise: http://www.belkin.com/email-notice/French.html F?r die deutsche ?bersetzung: http://www.belkin.com/email-notice/German.html __________________________________________________________________ |