From: Dmitriy Yakovlev <bombermag@gmail.com>
To: users@dpdk.org
Subject: [dpdk-users] Broken hash table functions with CFLAGS -O3
Date: Fri, 15 Jan 2016 04:20:03 +0300 [thread overview]
Message-ID: <CALq5hH1wwF+KyTgqNfYNM-Tpj6CuxffUfMBcHZS0B7Md4E4Lew@mail.gmail.com> (raw)
Hello.
I trying to use hash tables for adding struct ip:port as key.
When trying to add duplicated key it's successfuly added second time, not
always, but sometimes.
Please see this youtube video, where I'm demonstrating this bug:
https://www.youtube.com/watch?v=vsXVxISpmnU
Code on github: https://github.com/BombermaG/bug-app
When using CFLAGS -O2 this problem cannot be repeated.
It's problem with -O3 flag and I must use O2 or how can I solve it?
Thank you for helping.
(Sorry if this message double posting).
Spec info. Tell me, if you need more info.
dpdk 2.2.0
Linux 3.10.0-229.el7.x86_64 #1 SMP Fri Mar 6 11:36:42 UTC 2015 x86_64
x86_64 x86_64 GNU/Linux
gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.8.5/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla
--enable-bootstrap --enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-gnu-unique-object
--enable-linker-build-id --with-linker-hash-style=gnu
--enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto
--enable-plugin --enable-initfini-array --disable-libgcj
--with-isl=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/isl-install
--with-cloog=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/cloog-install
--enable-gnu-indirect-function --with-tune=generic --with-arch_32=x86-64
--build=x86_64-redhat-linux
Thread model: posix
gcc version 4.8.5 20150623 (Red Hat 4.8.5-4) (GCC)
Intel(R) Xeon(R) CPU E5-2643 v2 @ 3.50GHz
next reply other threads:[~2016-01-15 1:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-15 1:20 Dmitriy Yakovlev [this message]
2016-01-18 14:25 ` Pablo de Lara
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