Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_attr patch series v3) | KernelTrap

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_attr patch series v3)

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From: Ingo Molnar <mingo@...>

To: Andi Kleen <ak@...>

Cc: <linux-kernel@...>, <tglx@...>, <jbeulich@...>, <venkatesh.pallipadi@...>

Subject: Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_attr patch series v3)

Date: Friday, January 18, 2008 - 12:48 pm

* Andi Kleen <ak@suse.de> wrote:

quoted text> That rule of thumb makes sense if someone does a series from scratch, 
> but redoing a large existing series just because someone else sneaked 
> in a white space patch at the wrong time does not seem to be very 
> efficient to me.

i pointed it out how to port a larger series ontop of a whitespace 
cleanup patch:

 http://lkml.org/lkml/2008/1/18/281

the "there's an easy technique" bit. Repeat that method for every patch 
and you'll have your series ported ontop the whitespace cleanups. (with 
no risks)

	Ingo
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Messages in current thread:

[PATCH] [0/36] Great change_page_attr patch series v3, Andi Kleen, (Wed Jan 16, 6:14 pm)

Re: [PATCH] [0/36] Great change_page_attr patch series v3, Ingo Molnar, (Fri Jan 18, 5:56 am)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Ingo Molnar, (Fri Jan 18, 11:33 am)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Ingo Molnar, (Fri Jan 18, 11:56 am)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Andi Kleen, (Fri Jan 18, 12:01 pm)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Ingo Molnar, (Fri Jan 18, 12:07 pm)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Andi Kleen, (Fri Jan 18, 12:16 pm)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Ingo Molnar, (Fri Jan 18, 12:21 pm)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Andi Kleen, (Fri Jan 18, 12:34 pm)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Ingo Molnar, (Fri Jan 18, 12:48 pm)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Andi Kleen, (Fri Jan 18, 1:19 pm)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Ingo Molnar, (Mon Jan 21, 12:40 pm)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Andi Kleen, (Mon Jan 21, 1:13 pm)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Thomas Gleixner, (Tue Jan 22, 9:12 am)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Andi Kleen, (Tue Jan 22, 9:23 am)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Thomas Gleixner, (Tue Jan 22, 10:06 am)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Andi Kleen, (Tue Jan 22, 10:21 am)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Thomas Gleixner, (Tue Jan 22, 8:35 pm)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Andi Kleen, (Wed Jan 23, 4:09 am)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Ingo Molnar, (Tue Jan 22, 8:00 pm)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Andi Kleen, (Wed Jan 23, 5:05 am)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Andi Kleen, (Fri Jan 18, 12:05 pm)

Re: CPA boot crash (was: [PATCH] [0/36] Great change_page_at..., Ingo Molnar, (Fri Jan 18, 11:38 am)

[PATCH] [35/36] Remove set_kernel_exec, Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [36/36] Clean up pte_exec, Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [34/36] CPA: Add a BUG_ON checking for someone setti..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [32/36] CPA: Change comments of external interfaces ..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [33/36] CPA: Make kernel_text test match boot mappin..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [31/36] CPA: Fix reference counting when changing al..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [30/36] CPA: Always do full TLB flush when splitting..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [29/36] CPA: Only unmap kernel init pages in text ma..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [28/36] CPA: Remove unnecessary masking of address, Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [27/36] CPA: Only queue actually unused page table p..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [25/36] CPA: Fix inaccurate comments in 64bit change..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [26/36] CPA: Dump pagetable when inconsistency is de..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [24/36] CPA: Limit cache flushing to pages that real..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [23/36] CPA: Make change_page_attr() more robust aga..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [22/36] CPA: Reorder TLB / cache flushes to follow I..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [21/36] CPA: Use wbinvd() macro instead of inline as..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [20/36] CPA: Don't flush the caches when the CPU sup..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [19/36] CPA: Use page granuality TLB flushing in cha..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [18/36] CPA: Use macros to modify the PG_arch_1 page..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [17/36] CPA: CLFLUSH support in change_page_attr(), Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [16/36] CPA: Change 32bit back to init_mm semaphore ..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [15/36] CPA: Change kernel_map_pages to not use c_p_..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [14/36] CPA: Add simple self test at boot, Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [13/36] CPA: Return the page table level in lookup_a..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [12/36] Extract page table dumping code from i386 fa..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [11/36] Don't drop NX bit in pte modifier functions ..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [10/36] Add pte_pgprot on i386, Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [9/36] Add pte accessors for the global bit, Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [8/36] CPA: Do a simple self test at boot, Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [7/36] Shrink __PAGE_KERNEL/__PAGE_KERNEL_EXEC on no..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [6/36] CPA Handle 4K split pages at boot on 64bit, Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [5/36] CPA: Implement change_page_attr_addr entry po..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [4/36] CPA: Undo white space changes, Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [3/36] Undo pageattr_64 parts of 4157e20af49a04d75a8..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [2/36] Undo pageattr_32 portions of 11c9734cbcf4c586..., Andi Kleen, (Wed Jan 16, 6:15 pm)

[PATCH] [1/36] Undo pat cpa patch, Andi Kleen, (Wed Jan 16, 6:14 pm)

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