https://bugs.kde.org/show_bug.cgi?id=396220
Bug ID: 396220
Summary: vex x86->IR: unhandled instruction bytes: 0xC4 0xE2
0x41 0xF7
Product: valgrind
Version: 3.13.0
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
Assignee: jsew...@acm.org
Reporter: johnce...@hotmail.com
Target Milestone: ---
Hi, I am trying to run Valgrind on SPEC CPU benchmark, and encountered the
following error:
Essentially, Valgrind aborted with the following error:
vex x86->IR: unhandled instruction bytes: 0xC4 0xE2 0x41 0xF7
I'd be happy to check a patch when available to confirm a fix.
1530817135.71: ==27439== Nulgrind, the minimal Valgrind tool
1530817135.71: ==27439== Copyright (C) 2002-2017, and GNU GPL'd, by Nicholas
Nethercote.
1530817135.71: ==27439== Using Valgrind-3.13.0 and LibVEX; rerun with -h for
copyright info
1530817135.71: ==27439== Command:
../run_base_refrate_mytest-m32.0003/perlbench_r_base.mytest-m32 -I./lib
checkspam.pl 2500 5 25 11 150 1 1 1 1
1530817135.71: ==27439==
1530817135.71: vex x86->IR: unhandled instruction bytes: 0xC4 0xE2 0x41 0xF7
1530817135.71: ==27439== valgrind: Unrecognised instruction at address
0x81521dd.
1530817135.71: ==27439== at 0x81521DD: Perl_sv_upgrade (sv.c:1522)
1530817135.71: ==27439== by 0x815676F: Perl_sv_setpvn (sv.c:4927)
1530817135.71: ==27439== by 0x81577F7: Perl_newSVpvn (sv.c:9202)
1530817135.71: ==27439== by 0x80A756B: perl_construct (perl.c:249)
1530817135.71: ==27439== by 0x804ADDD: main (perlmain.c:114)
1530817135.71: ==27439== Your program just tried to execute an instruction that
Valgrind
1530817135.71: ==27439== did not recognise. There are two possible reasons for
this.
1530817135.71: ==27439== 1. Your program has a bug and erroneously jumped to a
non-code
1530817135.71: ==27439== location. If you are running Memcheck and you just
saw a
1530817135.71: ==27439== warning about a bad jump, it's probably your
program's fault.
1530817135.71: ==27439== 2. The instruction is legitimate but Valgrind doesn't
handle it,
1530817135.71: ==27439== i.e. it's Valgrind's fault. If you think this is
the case or
1530817135.71: ==27439== you are not sure, please let us know and we'll try
to fix it.
1530817135.71: ==27439== Either way, Valgrind will now raise a SIGILL signal
which will
1530817135.71: ==27439== probably kill your program.
1530817135.71: ==27439==
1530817135.71: ==27439== Process terminating with default action of signal 4
(SIGILL)
1530817135.71: ==27439== Illegal opcode at address 0x81521DD
1530817135.71: ==27439== at 0x81521DD: Perl_sv_upgrade (sv.c:1522)
1530817135.71: ==27439== by 0x815676F: Perl_sv_setpvn (sv.c:4927)
1530817135.71: ==27439== by 0x81577F7: Perl_newSVpvn (sv.c:9202)
1530817135.71: ==27439== by 0x80A756B: perl_construct (perl.c:249)
1530817135.71: ==27439== by 0x804ADDD: main (perlmain.c:114)
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