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Re: [repost PATCH] Fix SMP alternatives : use mutex instead of spinlock, text_poke is sleepable

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From: Mathieu Desnoyers
Subject: Re: [repost PATCH] Fix SMP alternatives : use mutex instead of spinlock, text_poke is sleepable
Date: Tuesday, April 22, 2008 - 1:22 pm

* Ingo Molnar (mingo@elte.hu) wrote:

Ingo,

The patch found there should also be pulled (at least the
is_vmalloc_addr -> !core_kernel_text bit) :

http://lkml.org/lkml/2008/4/20/192

On x86_64, module code is not in is_vmalloc_addr range, so we can end up
using virt_to_page on module text addresses.

Mathieu

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Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F  BA06 3F25 A8FE 3BAE 9A68
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Messages in current thread:
[BUG/PATCH] x86 mmiotrace: dynamically disable non-boot CPUs, Pekka Paalanen, (Sun Apr 13, 1:05 pm)
Re: [BUG/PATCH] x86 mmiotrace: dynamically disable non-boo ..., Ingo Molnar, (Sun Apr 13, 11:57 pm)
Re: [BUG/PATCH] x86 mmiotrace: dynamically disable non-boo ..., Pekka Paalanen, (Mon Apr 14, 11:02 am)
Re: [BUG/PATCH] x86 mmiotrace: dynamically disable non-boo ..., Ingo Molnar, (Wed Apr 16, 4:46 am)
Re: [BUG/PATCH] x86 mmiotrace: dynamically disable non-boo ..., Pekka Paalanen, (Wed Apr 16, 10:59 am)
Re: [BUG/PATCH] x86 mmiotrace: dynamically disable non-boo ..., Ingo Molnar, (Wed Apr 16, 11:32 am)
Re: [BUG/PATCH] x86 mmiotrace: dynamically disable non-boo ..., Steven Rostedt, (Wed Apr 16, 12:07 pm)
Re: [BUG/PATCH] x86 mmiotrace: dynamically disable non-boo ..., Pekka Paalanen, (Wed Apr 16, 1:42 pm)
Re: [BUG/PATCH] x86 mmiotrace: dynamically disable non-boo ..., Ingo Molnar, (Wed Apr 16, 1:47 pm)
[BUG] kmalloc_node(GFP_KERNEL) while smp_alt spinlocked, Pekka Paalanen, (Sat Apr 19, 8:41 am)
[PATCH] Fix SMP alternatives : use mutex instead of spinlo ..., Mathieu Desnoyers, (Sat Apr 19, 9:19 am)
Re: [PATCH] Fix SMP alternatives : use mutex instead of sp ..., Pekka Paalanen, (Sat Apr 19, 2:06 pm)
[BUG] CPU hotplug reboots machine (Re: [PATCH] Fix SMP alt ..., Pekka Paalanen, (Sat Apr 19, 2:52 pm)
[PATCH] Check for breakpoint in text_poke to eliminate bug_on, Mathieu Desnoyers, (Sat Apr 19, 2:58 pm)
Re: [PATCH] Check for breakpoint in text_poke to eliminate ..., Pekka Paalanen, (Sat Apr 19, 3:42 pm)
Re: [PATCH] Check for breakpoint in text_poke to eliminate ..., Mathieu Desnoyers, (Sat Apr 19, 5:05 pm)
Re: [PATCH] Check for breakpoint in text_poke to eliminate ..., Pekka Paalanen, (Sun Apr 20, 12:14 am)
Re: [PATCH] Check for breakpoint in text_poke to eliminate ..., Mathieu Desnoyers, (Sun Apr 20, 12:44 pm)
Re: [PATCH] Check for breakpoint in text_poke to eliminate ..., Pekka Paalanen, (Sun Apr 20, 1:18 pm)
Re: [PATCH] Check for breakpoint in text_poke to eliminate ..., Mathieu Desnoyers, (Sun Apr 20, 1:25 pm)
[PATCH] x86_64: fix kernel rodata NX setting, Pekka Paalanen, (Mon Apr 21, 11:48 am)
Re: [PATCH] x86_64: fix kernel rodata NX setting, Steven Rostedt, (Mon Apr 21, 11:57 am)
Re: [PATCH] x86_64: fix kernel rodata NX setting, Ingo Molnar, (Mon Apr 21, 12:03 pm)
[repost PATCH] Fix SMP alternatives : use mutex instead of ..., Pekka Paalanen, (Tue Apr 22, 11:42 am)
Re: [repost PATCH] Fix SMP alternatives : use mutex instea ..., Ingo Molnar, (Tue Apr 22, 12:09 pm)
Re: [repost PATCH] Fix SMP alternatives : use mutex instea ..., Mathieu Desnoyers, (Tue Apr 22, 1:22 pm)
[PATCH v2] x86 mmiotrace: dynamically disable non-boot CPUs, Pekka Paalanen, (Thu Apr 24, 12:39 pm)
Re: [PATCH v2] x86 mmiotrace: dynamically disable non-boot ..., Ingo Molnar, (Sat Apr 26, 4:13 am)
Re: [Nouveau] [BUG/PATCH] x86 mmiotrace: dynamically disab ..., Stephane Marchesin, (Thu Jul 24, 8:34 am)