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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-15 15:32:12 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-15 16:25:09 -0800 |
| commit | b5db0e38653bfada34a92f360b4111566ede3842 (patch) | |
| tree | 0ebc72a544e3d879ea5f9f57d5f65448d6bf3250 /Documentation/filesystems/proc.txt | |
| parent | 647df5189fecb2c2fa811421a3f28bf9034e3a70 (diff) | |
| download | lwn-b5db0e38653bfada34a92f360b4111566ede3842.tar.gz lwn-b5db0e38653bfada34a92f360b4111566ede3842.zip | |
Revert "x86 PAT: remove CPA WARN_ON for zero pte"
This reverts commit 58dab916dfb57328d50deb0aa9b3fc92efa248ff, which
makes my Nehalem come to a nasty crawling almost-halt. It looks like it
turns off caching of regular kernel RAM, with the understandable
slowdown of a few orders of magnitude as a result.
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Peter Anvin <hpa@zytor.com>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/filesystems/proc.txt')
0 files changed, 0 insertions, 0 deletions