Olof, Thanks for the response. Is there a piece of code in Linux which does the Machine check recovery and continue normal execution ? Thanks and Regards, Marri
-----Original Message----- From: Olof Johansson [mailto:[EMAIL PROTECTED] Sent: Monday, September 29, 2008 11:05 AM To: Tirumala Reddy Marri Cc: [email protected] Subject: Re: Disabling L1 D-cache and side effects On Mon, Sep 29, 2008 at 10:05:41AM -0700, Tirumala Reddy Marri wrote: > > Hi, > I had to bring up a PPC based SOC with L1 dcache disabled. I did > that and tried to boot Linux using RAMDISK/NFS mount. In RAMDISK I see > the file system errors. In case of NFS mount I see error saying failed > to load ld.so library. > > Could you guys please share thoughts what are the different side > effects might be causing this. There are a number of things you have to be careful about when you disable caches. Depending on your implementation, you likely can't use lwarx/stwcx, cache ops will not work, etc. Also, are you 100% sure that this is caused only by disabling L1D, and not by any other problems with your silicon? If you're doing early bringup of you'll have a whole lot of debug work in front of you, and this mailing list is probably not the best place to bring your homework. -Olof _______________________________________________ Linuxppc-dev mailing list [email protected] https://ozlabs.org/mailman/listinfo/linuxppc-dev
