Hi, ALL, My name is Igor and I'm a cross-platform developer.
Recently my program started experiencing crashes, so I decided to try valgrind. Here is the session: [code] igor@WaylandGnome ~/dbhandler/Debug/dbhandler $ valgrind --leak-check=yes ./dbhandler ==16807== Memcheck, a memory error detector ==16807== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al. ==16807== Using Valgrind-3.21.0 and LibVEX; rerun with -h for copyright info ==16807== Command: ./dbhandler ==16807== vex amd64->IR: unhandled instruction bytes: 0x8F 0xEA 0x78 0x10 0xD0 0x8 0x4 0x0 0x0 0x89 vex amd64->IR: REX=0 REX.W=0 REX.R=0 REX.X=0 REX.B=0 vex amd64->IR: VEX=0 VEX.L=0 VEX.nVVVV=0x0 ESC=NONE vex amd64->IR: PFX.66=0 PFX.F2=0 PFX.F3=0 ==16807== valgrind: Unrecognised instruction at address 0x40149d7. ==16807== at 0x40149D7: get_common_indices.constprop.0 (in /lib64/ld-linux-x86-64.so.2) ==16807== by 0x401604E: init_cpu_features.constprop.0 (in /lib64/ld-linux-x86-64.so.2) ==16807== by 0x4016360: _dl_x86_init_cpu_features (in /lib64/ld-linux-x86-64.so.2) ==16807== by 0x401974B: _dl_sysdep_start (in /lib64/ld-linux-x86-64.so.2) ==16807== by 0x401AECD: _dl_start (in /lib64/ld-linux-x86-64.so.2) ==16807== by 0x4019D17: ??? (in /lib64/ld-linux-x86-64.so.2) ==16807== Your program just tried to execute an instruction that Valgrind ==16807== did not recognise. There are two possible reasons for this. ==16807== 1. Your program has a bug and erroneously jumped to a non-code ==16807== location. If you are running Memcheck and you just saw a ==16807== warning about a bad jump, it's probably your program's fault. ==16807== 2. The instruction is legitimate but Valgrind doesn't handle it, ==16807== i.e. it's Valgrind's fault. If you think this is the case or ==16807== you are not sure, please let us know and we'll try to fix it. ==16807== Either way, Valgrind will now raise a SIGILL signal which will ==16807== probably kill your program. ==16807== ==16807== Process terminating with default action of signal 4 (SIGILL) ==16807== Illegal opcode at address 0x40149D7 ==16807== at 0x40149D7: get_common_indices.constprop.0 (in /lib64/ld-linux-x86-64.so.2) ==16807== by 0x401604E: init_cpu_features.constprop.0 (in /lib64/ld-linux-x86-64.so.2) ==16807== by 0x4016360: _dl_x86_init_cpu_features (in /lib64/ld-linux-x86-64.so.2) ==16807== by 0x401974B: _dl_sysdep_start (in /lib64/ld-linux-x86-64.so.2) ==16807== by 0x401AECD: _dl_start (in /lib64/ld-linux-x86-64.so.2) ==16807== by 0x4019D17: ??? (in /lib64/ld-linux-x86-64.so.2) ==16807== ==16807== HEAP SUMMARY: ==16807== in use at exit: 0 bytes in 0 blocks ==16807== total heap usage: 0 allocs, 0 frees, 0 bytes allocated ==16807== ==16807== All heap blocks were freed -- no leaks are possible ==16807== ==16807== For lists of detected and suppressed errors, rerun with: -s ==16807== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0) Illegal instruction [/code] What is the problem? I'm running Gentoo Linux. Thank you. _______________________________________________ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
