Re: kernel boot hangs after x86: insert_resorce for lapic addr after e820_reserve_resources

From: Yinghai Lu
Date: Sun May 18 2008 - 17:00:58 EST

On Sun, May 18, 2008 at 8:41 AM, Ciaran McCreesh
<ciaran.mccreesh@xxxxxxxxxxxxxx> wrote:
> On Sat, 17 May 2008 20:55:20 -0700
> "Yinghai Lu" <yhlu.kernel@xxxxxxxxx> wrote:
>> On Sat, May 17, 2008 at 5:41 PM, Ciaran McCreesh
>> <ciaran.mccreesh@xxxxxxxxxxxxxx> wrote:
>> > The commit 3def3d6ddf43dbe20c00c3cbc38dfacc8586998f (x86:
>> > insert_resorce for lapic addr after e820_reserve_resources) causes
>> > my x86_64 box to to lock up early on in the boot process. Reverting
>> > only this commit with current git head gives a successful boot.
>> can you try to boot with apic=verbose? please don't revert that
>> patch...
>> wonder if init_apic_mapping need some delay with that strange chipset.
> I don't see any additional information with apic=verbose with the
> broken kernel (although I only have a screen's worth of text that I can
> see -- the kernel doesn't get far enough to let me grab it). I've
> attached dmesg from a working kernel with apic=verbose in case that
> helps.

or try to boot with initcall_debug to see where did it hang.

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