The memory requirement for Valgrind is “several times as much memory as the application you’re testing needs without Valgrind.”
How much memory does your application use normally? -- John Dallman From: Padala Dileep [mailto:padala.dil...@gmail.com] Sent: 25 January 2019 10:00 To: valgrind-users@lists.sourceforge.net Subject: [Valgrind-users] What is the memory ( RAM ) requirement for running valgrind Hi My system has 4GB memory ( arm-linux ) . But when I try to run the valgrind, the process becomes very slow, and it gets rebooted with a message "valgrind: the 'impossible' happened' How much RAM is expected to be present in the system to run valgrind for 15-20 mins atleast. If i stop the process, before 100% memory gets over, it dumps the evaluation till that point. But it is only for 5 mins of Run. and it has not hit all the threads as the process is running slowly. ==1382== Memcheck, a memory error detector ==1382== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==1382== Using Valgrind-3.14.0 and LibVEX; rerun with -h for copyright info ==1382== Command: Frm20xd ==1382== --1382-- VALGRIND INTERNAL ERROR: Valgrind received a signal 11 (SIGSEGV) - exiting --1382-- si_code=1; Faulting address: 0xFFFF0FE3; sp: 0x426987b0 valgrind: the 'impossible' happened: Killed by fatal signal host stacktrace: ==1382== at 0x58184470: getUIntLittleEndianly (guest_arm_toIR.c:196) ==1382== by 0x58184470: disInstr_ARM_WRK.isra.36 (guest_arm_toIR.c:16118) ==1382== by 0x5818E2B3: disInstr_ARM (guest_arm_toIR.c:23690) ==1382== by 0x581501D3: bb_to_IR (guest_generic_bb_to_IR.c:365) ==1382== by 0x581328AF: LibVEX_FrontEnd (main_main.c:560) ==1382== by 0x58133043: LibVEX_Translate (main_main.c:1185) ==1382== by 0x58059CBB: vgPlain_translate (m_translate.c:1813) ==1382== by 0x58095F53: handle_chain_me (scheduler.c:1134) ==1382== by 0x58097FFF: vgPlain_scheduler (scheduler.c:1483) ==1382== by 0x580F0F27: thread_wrapper (syswrap-linux.c:103) ==1382== by 0x580F0F27: run_a_thread_NORETURN (syswrap-linux.c:156) ==1382== by 0xFFFFFFFF: ??? Once I stop the process before it gets exited like above, It is dumping the evaluation it was doing. = ==1375== Process terminating with default action of signal 2 (SIGINT) ==1375== at 0x53B90E8: std::string::_Rep::_S_create(unsigned int, unsigned int, std::allocator<char> const&) (in /lib/libstdc++.so.6.0.17) ==1375== by 0x7DD155E7: ??? ==1375== ==1375== HEAP SUMMARY: ==1375== in use at exit: 16,558 bytes in 292 blocks ==1375== total heap usage: 1,449 allocs, 1,157 frees, 53,262 bytes allocated ==1375== ==1375== LEAK SUMMARY: ==1375== definitely lost: 0 bytes in 0 blocks ==1375== indirectly lost: 0 bytes in 0 blocks ==1375== possibly lost: 0 bytes in 0 blocks ==1375== still reachable: 16,558 bytes in 292 blocks ==1375== of which reachable via heuristic: ==1375== stdstring : 5,178 bytes in 194 blocks ==1375== suppressed: 0 bytes in 0 blocks ==1375== Rerun with --leak-check=full to see details of leaked memory ==1375== ==1375== For counts of detected and suppressed errors, rerun with: -v ==1375== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0) Thanks & Regards, Dileep Padala ----------------- Siemens Industry Software Limited is a limited company registered in England and Wales. Registered number: 3476850. Registered office: Faraday House, Sir William Siemens Square, Frimley, Surrey, GU16 8QD.
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