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[Bug 228344] Acer Ferrari 1000 resets on resume with CONFIG_MTRR
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Wed, 28 Feb 2007 10:41:22 -0700 (MST)
  • Message-id: <20070228174122.F407225C887@xxxxxxxxxxxxxxxxxxxxxx>
https://bugzilla.novell.com/show_bug.cgi?id=228344





------- Comment #38 from bk@xxxxxxxxxx 2007-02-28 10:41 MST -------
Created an attachment (id=121632)
--> (https://bugzilla.novell.com/attachment.cgi?id=121632&action=view)
Program for reading the fixed-range MTRR values man

Test program for reading current fixed-range MTRR values, enable CONFIG_X86_MSR
and load msr.ko.

Assumes that msr.ko device files are created as /dev/cpu/<#CPU>/msr by udev
(default)

Example output from broken system (each 64-bit column is from one CPU):

MSR 0x250: 1e1e1e1e1e1e1e1e | 0606060606060606
MSR 0x258: 1e1e1e1e1e1e1e1e | 0606060606060606
MSR 0x259: 0000000000000000 | 0000000000000000
MSR 0x268: 1515151515151515 | 0505050505050505
MSR 0x269: 1515151515151515 | 0505050505050505
MSR 0x26a: 0000000000000000 | 0000000000000000
MSR 0x26b: 0000000000000000 | 0000000000000000
MSR 0x26c: 1515151500000000 | 0505050500000000
MSR 0x26d: 1515151515151515 | 0505050505050505
MSR 0x26e: 1515151515151515 | 0505050505050505
MSR 0x26f: 1515151515151515 | 0505050505050505

In fixed setup, the register dump blocks from all CPUs are identical and do not
change e.g. after resume from disk.


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