https://bugs.kde.org/show_bug.cgi?id=375839
Bug ID: 375839
Summary: Temporary storage exhusted , when long sequence of
vfmadd231ps instructions to be executed
Product: valgrind
Version: 3.12.0
Platform: Compiled Sources
OS: Linux
Status: UNCONFIRMED
Severity: crash
Priority: NOR
Component: general
Assignee: jsew...@acm.org
Reporter: jacek.cz...@intel.com
Target Milestone: ---
Created attachment 103747
--> https://bugs.kde.org/attachment.cgi?id=103747&action=edit
output from GDB showing faulty instruction sequence + log from run valgrind
I noticed a valgrind crash with error: "Temporary storage exhusted" in a case
when there is long sequence(50+) of instructions:
..
vfmadd231ps ymm0,ymm1,ymm2
vfmadd231ps ymm0,ymm1,ymm2
vfmadd231ps ymm0,ymm1,ymm2
vfmadd231ps ymm0,ymm1,ymm2
....
In attachment there is full crash message and sequence of instructions as seen
in GDB (intel syntax) that made this crash happen.
This sequence of instructions was created using JIt assembler xbyak
(https://github.com/herumi/xbyak). I can attach linux project if needed.
Notes:
- valgrind was build from source (3.12)
- commandline use: <path to valgrind 3.12>/bin/valgrind --tool=memcheck <my
project with sequence of vfmadd231ps ymm0,ymm1,ymm2>
- Operating System: Fedora 21, uname -a:
Linux linux-brix 3.14.5 #1 SMP Fri Mar 13 16:27:51 CET 2015 x86_64 x86_64
x86_64 GNU/Linux
- without valgrind program works fine ,( does nothing as it was modified for
exploiting this problem)
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