Re: [BUG sparc64] 2.6.16-git6 broke X11 on Ultra5 with ATI Mach64

From: Mikael Pettersson <[email protected]>
Date: Fri, 28 Jul 2006 12:35:24 +0200 (MEST)

> FAULT: write(1) old_entry[e00001ffe1970f8a]
> FAULT: After, entry[e00001ffe1970f8a]
> FAULT: write(1) old_entry[e00001ffe1970f8a]
> FAULT: After, entry[e00001ffe1970f8a]
> 
> The last two lines then repeat semi-infinitely, and they
> were generated at an extremely high rate.

It looks like the TSB is never updated.

Do you have CONFIG_HUGETLB_PAGE disabled by chance?
I bet that's part of what helps trigger this bug.

Meanwhile I think I know what's wrong, I'll let you
know when I have a fix to test out.

Thanks a lot.
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