| commit | c1217a75ea102d4e69321f210fab60bc47b9a48e | [log] [tgz] |
|---|---|---|
| author | Kirill Korotaev <dev@openvz.org> | Wed Oct 17 18:04:33 2007 +0200 |
| committer | Thomas Gleixner <tglx@inhelltoy.tec.linutronix.de> | Wed Oct 17 20:15:31 2007 +0200 |
| tree | fffa575916b27bac17dfb751300ed2e1f9107f0c | |
| parent | f891dd18c107d582c3ab98da5209c930e16baf78 [diff] |
x86: mark read_crX() asm code as volatile Some gcc versions (I checked at least 4.1.1 from RHEL5 & 4.1.2 from gentoo) can generate incorrect code with read_crX()/write_crX() functions mix up, due to cached results of read_crX(). The small app for x8664 below compiled with -O2 demonstrates this (i686 does the same thing):