Messages in this thread | | | From | "Michael S. Zick" <> | Subject | Re: [BUG FIX] Make x86_32 uni-processor Atomic ops, Atomic | Date | Thu, 28 May 2009 15:58:58 -0500 |
| |
On Thu May 28 2009, Pavel Machek wrote: > On Thu 2009-05-28 08:29:13, Michael S. Zick wrote: > > On Thu May 28 2009, Pavel Machek wrote: > > > Hi! > > > > > > > The observation that executing an unnecessary 'lock' opcode in some > > > > cases slows down the machine is not felt by myself to be significant > > > > to duplicating my observations. Note: I have been wrong before. > > > > > > > > This is as informative as I can make the message. > > > > > > > > PS: *not* a single machine failure, tested on five machines, owned > > > > by four different people, two brands, with different use histories. > > > > > > I have seen some problems on via c7m based machines, where some 'smart > > > bios person' implemented EC access in AML (normally, it is accessed > > > from ec.c driver). Maybe you have similary bad bios? > > > > > > > How to tell or distingush? > > Did your looking at the dmidecode output show you that? > > Disassemble DSDT, and if you see strange code duplicating kernel's > ec.c driver, you have similar problem...
Someone did that but wasn't looking for "strange code" - just fixing some entry size errors. You can find the replacement DSDT here: http://forum.netbookuser.com/viewtopic.php?pid=6512#p6512
(Which I am not using, since it mostly cosmetic.)
Mike > Pavel
| |