Do you think it's worth re-compiling with a <gcc-4.1??
----- Original Message ----- From: "Thomas Schmitz" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Wednesday, May 31, 2006 12:42 PM Subject: Re: [ivtv-devel] i2c problems with FC5 and svn ivtv 0.8.0 > On Wednesday 31 May 2006 21:12, Simon Baxter wrote: >> I'm not sure if anyone's following my problems with getting a new PVR-150 >> card and ivtv working with Fedora Core 5. > > I am sure following since I have nearly the same problem on my SuSE 10.1 > system (see my posting "ivtv-0.6.x / gcc-4.1 / SUSE 10.1 problems" of > 2006-05-24) for which there also have been no helpful replies. > The only thing I know is that the problem is depended on the > compiler/linker toolchain. I can only think of two reasons at > the moment: > > 1) a code generation bug in gcc-4.1. > 2) better code optimization in gcc-4.1 breaks some assumptions of > the i2c code. The compiler has really no idea about the dependencies > needed for accessing hardware (e.g a specific store that has to > occur before a load) and may reorder C level statements at will as > long as the C semantics are preserved. > > Given that everything else compiled by the gcc 4.1 looks to be fine > and how often I wrongly tried to blame a compiler for some bugs I > tend to favor 2). > > Thomas > > > _______________________________________________ > ivtv-devel mailing list > [email protected] > http://ivtvdriver.org/mailman/listinfo/ivtv-devel _______________________________________________ ivtv-devel mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-devel
