Messages in this thread | | | Date | Mon, 19 Jun 2023 16:50:12 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH v1] x86/apic: Fix kernel panic when "intremap=off" and "x2apic_phys" are set |
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On Sat, Jun 17, 2023 at 02:52:36AM +0530, Dheeraj Kumar Srivastava wrote: > x2APIC mode requires "Interrupt Remapping" to be enabled and the > "physical x2apic" driver can be used only when x2APIC mode is enabled. > However when "intremap=off" and "x2apic_phys" kernel command line > parameters are passed, "physical x2apic" driver is being used even when > x2APIC mode is disabled ("intremap=off" disables x2APIC mode). > This results in the below kernel panic: > > unchecked MSR access error: RDMSR from 0x80f at rIP: 0xffffffff87eab4ec
Not a kernel panic - that's a warning about accessing a non-existent MSR.
Can you send full dmesg? Privately is fine too.
How exactly do you trigger this? What hw?
Thx.
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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