Messages in this thread | | | Date | Sun, 1 Dec 2019 12:09:31 -0800 (PST) | From | "Kenneth R. Crudup" <> | Subject | Re: [PATCH] x86/pat: Fix off-by-one bugs in interval tree search |
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> > uncached-minus @ 0xfed91000-0xfed92000 > > uncached-minus @ 0xff340000-0xff341000 > > write-combining @ 0x4000000000-0x4010000000 > > uncached-minus @ 0x4010000000-0x4010001000
On Sun, 1 Dec 2019, Ingo Molnar wrote:
> I believe this is the region that caused the problem, the 0x4010000000 > 'end' address of the WC region is the same as the 0x4010000000 'start' > address of the UC- region that follows it.
> > write-combining @ 0x604a800000-0x604b000000 > > uncached-minus @ 0x604b100000-0x604b110000
> This WC region was probably unaffected by the bug.
For my education, and for completeness' sake, is there a proc/sys entry that would tell me which device/module has reserved which PAT region?
-Kenny
-- Kenneth R. Crudup Sr. SW Engineer, Scott County Consulting, Silicon Valley
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