Re: ACPI early ioremap problems II

2008-01-20 Thread Andi Kleen
On Mon, Jan 21, 2008 at 12:50:00AM +0100, Ingo Molnar wrote: > > * Andi Kleen <[EMAIL PROTECTED]> wrote: > > > As a followup I see this problem on three different 64bit machines > > now. Symptom is usually that only one core is active because ACPI > > doesn't see the other processors in its tab

Re: ACPI early ioremap problems II

2008-01-20 Thread Ingo Molnar
* Andi Kleen <[EMAIL PROTECTED]> wrote: > As a followup I see this problem on three different 64bit machines > now. Symptom is usually that only one core is active because ACPI > doesn't see the other processors in its tables. to be able to have a chance to fix it we need you meet the minimum

Re: ACPI early ioremap problems II

2008-01-20 Thread Andi Kleen
As a followup I see this problem on three different 64bit machines now. Symptom is usually that only one core is active because ACPI doesn't see the other processors in its tables. -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL

Re: ACPI early ioremap problems

2008-01-19 Thread Andi Kleen
> hm, so are you saying that on 64-bit there's in essence no usable > ioremap facility between zap_low_mappings() and paging_init()? > (early_ioremap() is not usable anymore, and ioremap() is not yet > usable.) I guess we'll have to pick up the 32-bit early_ioremap() code > for 64-bit as well.

Re: ACPI early ioremap problems

2008-01-19 Thread Ingo Molnar
* Andi Kleen <[EMAIL PROTECTED]> wrote: > On Sat, Jan 19, 2008 at 04:30:55PM +0100, Ingo Molnar wrote: > > > > that case it's a 64-bit early_ioremap() bug that we want to find > > > > even if ACPI didnt use early_ioremap(). > > > > > > > > and this all runs before zap_low_mappings(), right? > >

Re: ACPI early ioremap problems

2008-01-19 Thread Andi Kleen
On Sat, Jan 19, 2008 at 04:30:55PM +0100, Ingo Molnar wrote: > > > that case it's a 64-bit early_ioremap() bug that we want to find > > > even if ACPI didnt use early_ioremap(). > > > > > > and this all runs before zap_low_mappings(), right? > > > > No after. Since some time x86-64 does the equi

Re: ACPI early ioremap problems

2008-01-19 Thread Ingo Molnar
(Cc:-ing to lkml, because this might interest others too) * Andi Kleen <[EMAIL PROTECTED]> wrote: > > would be interesting to figure out what's going on here - i doubt > > it's an ACPI bug, because then we'd be getting a hard page fault, > > right? In > > ACPI hasn't changed at all in git-x86