Opened 11 years ago

Closed 7 years ago

#5879 closed bug (fixed)

Unexpected exception in kernel mode - SpeedStep driver

Reported by: jahaiku Owned by: pdziepak
Priority: normal Milestone: R1/beta1
Component: Drivers/ACPI Version: R1/Development
Keywords: Cc:
Blocked By: Blocking:
Platform: All


This is gcc4 build of hrev36566 on Acer Aspire One 150 (Intel Atom n270).
I get the error when opening the CPUFreq-Pref-App or using the CPUFreq-Replicant. I can reproduce this 99%.

Attachments (1)

SpeedStepException.jpg (196.6 KB ) - added by jahaiku 11 years ago.

Download all attachments as: .zip

Change History (7)

by jahaiku, 11 years ago

Attachment: SpeedStepException.jpg added

comment:1 by bonefish, 11 years ago

In x86_write_msr(). Most likely your CPU doesn't have/support the MSR in question. The driver might not correctly check that.

comment:2 by tqh, 11 years ago

Owner: changed from tqh to nobody
Status: newassigned

(Speedstep is not really my cup of tea.)

comment:3 by bonefish, 11 years ago

Milestone: R1R1/alpha2
Owner: changed from nobody to czeidler
Version: R1/alpha1R1/Development

comment:4 by scottmc, 10 years ago

Milestone: R1/alpha3R1/beta1

comment:5 by pdziepak, 7 years ago

Owner: changed from czeidler to pdziepak

comment:6 by pdziepak, 7 years ago

Resolution: fixed
Status: assignedclosed

SpeedStep driver has been removed as it didn't support any CPUs with invariant TSC and didn't work on SMP systems.

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