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Re: [PATCH 00 of 11] x86: separate pmd lifetime from pgd

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From: Ingo Molnar
Subject: Re: [PATCH 00 of 11] x86: separate pmd lifetime from pgd
Date: Monday, January 28, 2008 - 8:17 am

* Jeremy Fitzhardinge <jeremy@goop.org> wrote:


hm, i tried this, and got an early crash:

[   29.389844] VFS: Mounted root (ext3 filesystem) readonly.
[   29.389872] debug: unmapping init memory c0b03000..c0b6f000
[   29.440139] PM: Adding info for No Bus:vcs1
[   29.463676] khelper used greatest stack depth: 2404 bytes left
[   29.467238] PM: Adding info for No Bus:vcsa1
[   29.541785] PANIC: double fault, gdt at c1d16000 [255 bytes]
[   29.541785] double fault, tss at c1d19100
[   29.541785] eip = c011fa95, esp = c3bf6000
[   29.541785] eax = c3bf6010, ebx = c0b6fc08, ecx = 0000007b, edx = 00000000
[   29.541785] esi = f76a7df4, edi = c011fa90

i think it's one of your patches :) Bisecting it down to the right one 
now. Config attached.

	Ingo
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Messages in current thread:
[PATCH 00 of 11] x86: separate pmd lifetime from pgd, Jeremy Fitzhardinge, (Fri Jan 25, 2:23 pm)
[PATCH 01 of 11] xen: fix mismerge in masking pte flags, Jeremy Fitzhardinge, (Fri Jan 25, 2:23 pm)
[PATCH 02 of 11] x86: use the same pgd_list for PAE and 64-bit, Jeremy Fitzhardinge, (Fri Jan 25, 2:23 pm)
[PATCH 03 of 11] x86: add mm parameter to paravirt_alloc_pd, Jeremy Fitzhardinge, (Fri Jan 25, 2:23 pm)
[PATCH 04 of 11] x86: fix early_ioremap pagetable ops, Jeremy Fitzhardinge, (Fri Jan 25, 2:23 pm)
[PATCH 05 of 11] x86: demacro asm-x86/pgalloc_32.h, Jeremy Fitzhardinge, (Fri Jan 25, 2:23 pm)
[PATCH 06 of 11] x86: unify PAE/non-PAE pgd_ctor, Jeremy Fitzhardinge, (Fri Jan 25, 2:23 pm)
[PATCH 07 of 11] x86: don't special-case pmd allocations a ..., Jeremy Fitzhardinge, (Fri Jan 25, 2:23 pm)
[PATCH 08 of 11] xen: deal with pmd being allocated/freed, Jeremy Fitzhardinge, (Fri Jan 25, 2:23 pm)
[PATCH 09 of 11] x86: preallocate pmds at pgd creation time, Jeremy Fitzhardinge, (Fri Jan 25, 2:23 pm)
[PATCH 10 of 11] x86: allocate and initialize unshared pmds, Jeremy Fitzhardinge, (Fri Jan 25, 2:23 pm)
[PATCH 11 of 11] x86: defer cr3 reload when doing pud_clear(), Jeremy Fitzhardinge, (Fri Jan 25, 2:23 pm)
Re: [PATCH 00 of 11] x86: separate pmd lifetime from pgd, Ingo Molnar, (Mon Jan 28, 8:17 am)
Re: [PATCH 00 of 11] x86: separate pmd lifetime from pgd, Jeremy Fitzhardinge, (Mon Jan 28, 8:39 am)
Re: [PATCH 00 of 11] x86: separate pmd lifetime from pgd, Ingo Molnar, (Mon Jan 28, 8:41 am)
Re: [PATCH 00 of 11] x86: separate pmd lifetime from pgd, Ingo Molnar, (Mon Jan 28, 8:47 am)
Re: [PATCH 00 of 11] x86: separate pmd lifetime from pgd, Jeremy Fitzhardinge, (Mon Jan 28, 9:20 am)
Re: [PATCH 04 of 11] x86: fix early_ioremap pagetable ops, Ian Campbell, (Thu Jan 31, 12:01 pm)
Re: [PATCH 04 of 11] x86: fix early_ioremap pagetable ops, Jeremy Fitzhardinge, (Thu Jan 31, 12:52 pm)
Re: [PATCH 04 of 11] x86: fix early_ioremap pagetable ops, Ingo Molnar, (Thu Jan 31, 1:37 pm)
Re: [PATCH 04 of 11] x86: fix early_ioremap pagetable ops, Jeremy Fitzhardinge, (Thu Jan 31, 1:41 pm)