Messages in this thread | | | From | "Doug Smythies" <> | Subject | RE: As of kernel 4.4-rc1 segmentation fault if msr module not loaded. [REGRESSION][BISECTED] | Date | Fri, 27 Nov 2015 08:12:59 -0800 |
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On 2015.11.26 10:10 Borislav Petkov wrote: > On Thu, Nov 26, 2015 at 08:25:43AM -0800, Doug Smythies wrote: >> >> In some distros, the msr module is not loaded by default. >> (I guess not built in by default, would be more correct.) >> I often forget to load it before using "rdmsr" or "wrmsr". >> It was never an issue before, but as of Kernel 4.4-rc1 >> it causes a segmentation fault crash. Example: >> >> # rdmsr -a 0x19a >> Segmentation fault (core dumped)
> You can either cherrypick > http://git.kernel.org/tip/2d5be37d686c4dae8e60d20283d6f44ac2c44f65
Just for completeness: I confirm that the above commit fixes the issue raised herein. Thanks.
... Doug
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