[Bug 922037] Re: reduce brightness key freezes system

Hi Licanueto, Can you upload the information of Dell N5010? Doing like the bug description and attachments for this bug. Thanks -Youquan -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/922037 Title:

[Bug 605686] Re: nointremap needed - Blocked an interrupt request due to source-id verificiation failure

Hi klhsieh, I did not encouter the issue of source-id verification failure when interrupt remapping opend at platform with 5520 chipset. What's the result of print IRTE? Adding apic=verbose kernel option, it also can printf out of setting IRTE. Thanks -Youquan -- You received this bug

[Bug 922037] Re: reduce brightness key freezes system

This issue comes from broken BIOS SMI (like generated when you kick specifica keys etc) hang because it does not aware of OS in x2apic mode. So the workround way is to blacklist issued platform. Yes. there are other T420 platforms have the issue

[Bug 605686] Re: nointremap needed - Blocked an interrupt request due to source-id verificiation failure

Hi klhsieh, Does the intremap=nosid kernel options work for you? Thanks -Youquan -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/605686 Title: nointremap needed - Blocked an interrupt request due

[Bug 922037] Re: reduce brightness key freezes system

Hi Lukas, No. this bug is about BIOS SMI broken in x2APIC mode. While the bug at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1007765 does not enable x2APIC at all. so there are different bugs. Thanks -Youquan -- You received this bug notification because you are a member of Ubuntu

[Bug 922037] Re: reduce brightness key freezes system

Please try to apply the attached patch to 3.7-rc kernel, then try if it issue is fixed or not. ** Patch added: set-x2apic-blacklist.patch https://bugs.launchpad.net/ubuntu/+source/linux/+bug/922037/+attachment/3442662/+files/0001-x86-apic-set-x2apic-blacklist.patch -- You received this bug

[Bug 922037] Re: reduce brightness key freezes system

Hi, Can you update ThinkPad T420 BIOS to at least version 1.39, Version: 83ET69WW (1.39 ), then have a try to enable x2apic. Thanks -Youquan -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/922037

[Bug 605686] Re: nointremap needed - Blocked an interrupt request due to source-id verificiation failure

No. your work round is very risk by merely jumping off the panic check. It will push the whole system into unstable situation if the timer interrupt is not guaranteed to route through the interrupt remapping when interrupt remapping is actually enabled. The source id checking in interrupt

[Bug 605686] Re: nointremap needed - Blocked an interrupt request due to source-id verificiation failure

It is the platform issue of not support source id check since my drafting/testing patch works. Currently, there is an upstream patch which will allow the interrupt remppaing to ignore source id checking, so it will be possible to work round this issue by adding kernel option intremap=nosid

[Bug 605686] Re: [maverick] nointremap needed - Blocked an interrupt request due to source-id verificiation failure

diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c index 1315ac6..0ccb571 100644 --- a/drivers/pci/intr_remapping.c +++ b/drivers/pci/intr_remapping.c @@ -453,7 +453,8 @@ int free_irte(int irq) static void set_irte_sid(struct irte *irte, unsigned int svt,