Messages in this thread | | | Subject | Re: [PATCH] Revert "x86/apic: Remove init_bsp_APIC()" | From | Dou Liyang <> | Date | Thu, 30 Nov 2017 14:28:18 +0800 |
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Hi, Ville
At 11/30/2017 05:25 AM, Ville Syrjälä wrote: > On Wed, Nov 29, 2017 at 09:15:19AM +0800, Dou Liyang wrote: >> Hi Ville, >> >> At 11/28/2017 10:53 PM, Ville Syrjala wrote: >>> From: Ville Syrjälä <ville.syrjala@linux.intel.com> >>> >>> This reverts commit b371ae0d4a194b178817b0edfb6a7395c7aec37a. >>> >>> Causes my P3 UP machine to hang at boot with "lapic". >>> >>> Cc: Dou Liyang <douly.fnst@cn.fujitsu.com> >>> Cc: Thomas Gleixner <tglx@linutronix.de> >>> Cc: yinghai@kernel.org >>> Cc: bhe@redhat.com >>> Cc: Ingo Molnar <mingo@redhat.com> >>> Cc: "H. Peter Anvin" <hpa@zytor.com> >>> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> >>> --- >> >> Could you give me the dmesg log of your P3 UP machine? > > This is with the revert:
Oops, Sorry about my ambiguous description, I knew the revert patch could work.
Actually, It's an interesting problem. your machine (UP system without ACPI table and MP table) will make the interrupt mode in a rare situation:
Virtual Wire Mode with no configuration
My test cases also simulate this situation, can work well. I hope to know why you machine hang?
So, the true thing I want to get is the log without the revert. or could you tell me the phenomenon and reason of your machine hang directly. :-)
Thanks, dou
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