https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118578
Bug ID: 118578
Summary: simple code crash on some AlmaLinux 8.4 but works on
other machines of the same OS
Product: gcc
Version: 12.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: Yang.Li at synopsys dot com
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org
Target Milestone: ---
OS: AlmaLinux release 8.4
Kernel: Linux 4.18.0-425.3.1.el8.x86_64 x86_64
How to produce:
1. On AlmaLinux 8.4 machine:
$echo 'void main(void){}' | g++ -fsanitize=thread -xc -
2. on some machine:
$./a.out
FATAL: ThreadSanitizer: unexpected memory mapping
0x80000008a000-0x80000008e000
3. On another AlmaLinux 8.4 machine:
$./a.out
<No error>
A workaround is to select machine with cpu_code "E5-2660v3". But this may
reduce much our available machines to run regression.
Is this a known issue, or any solution can be found from GCC / sannitizer?
Regards,
Leon
