https://bugs.kde.org/show_bug.cgi?id=469878
Martin Kjær Jørgensen <m...@lagy.org> changed:
What |Removed |Added
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CC| |m...@lagy.org
--- Comment #3 from Martin Kjær Jørgensen <m...@lagy.org> ---
(In reply to tusooa from comment #1)
> ==9898== Memcheck, a memory error detector
> ==9898== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
> ==9898== Using Valgrind-3.20.0-5147d671e4-20221024 and LibVEX; rerun with -h
> for copyright info
> ==9898== Command: ls
> ==9898==
> --9898-- Valgrind options:
> --9898-- -v
> --9898-- Contents of /proc/version:
> --9898-- Linux version 6.1.27-gentoo-r1-x86_64 (REDACTED@REDACTED)
> (x86_64-pc-linux-gnu-gcc (Gentoo 12.2.1_p20230428-r1 p2) 12.2.1 20230428,
> GNU ld (Gentoo 2.39 p6) 2.39.0) #1 SMP PREEMPT_DYNAMIC Wed May 10 18:30:00
> EDT 2023
> --9898--
> --9898-- Arch and hwcaps: AMD64, LittleEndian,
> amd64-cx16-lzcnt-rdtscp-sse3-ssse3-avx-avx2-bmi-f16c-rdrand-rdseed
> --9898-- Page sizes: currently 4096, max supported 4096
> --9898-- Valgrind library directory: /usr/libexec/valgrind
> --9898-- Reading syms from /bin/ls
> --9898-- object doesn't have a symbol table
> --9898-- Reading syms from /lib64/ld-linux-x86-64.so.2
> --9898-- Considering /usr/lib/debug/lib64/ld-linux-x86-64.so.2.debug ..
> --9898-- .. CRC is valid
> --9898-- Reading syms from /usr/libexec/valgrind/memcheck-amd64-linux
> --9898-- object doesn't have a symbol table
> --9898-- object doesn't have a dynamic symbol table
> --9898-- Scheduler: using generic scheduler lock implementation.
> --9898-- Reading suppressions file: /usr/libexec/valgrind/default.supp
> ==9898== embedded gdbserver: reading from
> /tmp/vgdb-pipe-from-vgdb-to-9898-by-user-on-???
> ==9898== embedded gdbserver: writing to
> /tmp/vgdb-pipe-to-vgdb-from-9898-by-user-on-???
> ==9898== embedded gdbserver: shared mem
> /tmp/vgdb-pipe-shared-mem-vgdb-9898-by-user-on-???
> ==9898==
> ==9898== TO CONTROL THIS PROCESS USING vgdb (which you probably
> ==9898== don't want to do, unless you know exactly what you're doing,
> ==9898== or are doing some strange experiment):
> ==9898== /usr/libexec/valgrind/../../bin/vgdb --pid=9898 ...command...
> ==9898==
> ==9898== TO DEBUG THIS PROCESS USING GDB: start GDB like this
> ==9898== /path/to/gdb ls
> ==9898== and then give GDB the following command
> ==9898== target remote | /usr/libexec/valgrind/../../bin/vgdb --pid=9898
> ==9898== --pid is optional if only one valgrind process is running
> ==9898==
> vex amd64->IR: unhandled instruction bytes: 0x62 0xF1 0x7F 0x48 0x7F 0x44
> 0x24 0x1 0x83 0xE7
> 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
> ==9898== valgrind: Unrecognised instruction at address 0x401c126.
> ==9898== at 0x401C126: _dl_start (rtld.c:566)
> ==9898== by 0x401B1D7: ??? (in /lib64/ld-linux-x86-64.so.2)
> ==9898== Your program just tried to execute an instruction that Valgrind
> ==9898== did not recognise. There are two possible reasons for this.
> ==9898== 1. Your program has a bug and erroneously jumped to a non-code
> ==9898== location. If you are running Memcheck and you just saw a
> ==9898== warning about a bad jump, it's probably your program's fault.
> ==9898== 2. The instruction is legitimate but Valgrind doesn't handle it,
> ==9898== i.e. it's Valgrind's fault. If you think this is the case or
> ==9898== you are not sure, please let us know and we'll try to fix it.
> ==9898== Either way, Valgrind will now raise a SIGILL signal which will
> ==9898== probably kill your program.
> ==9898==
> ==9898== Process terminating with default action of signal 4 (SIGILL):
> dumping core
> ==9898== Illegal opcode at address 0x401C126
> ==9898== at 0x401C126: _dl_start (rtld.c:566)
> ==9898== by 0x401B1D7: ??? (in /lib64/ld-linux-x86-64.so.2)
> ==9898==
> ==9898== HEAP SUMMARY:
> ==9898== in use at exit: 0 bytes in 0 blocks
> ==9898== total heap usage: 0 allocs, 0 frees, 0 bytes allocated
> ==9898==
> ==9898== All heap blocks were freed -- no leaks are possible
> ==9898==
> ==9898== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
> zsh: illegal hardware instruction valgrind -v ls
Did you work around your AXV512 issue?
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