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From: Sam Ravnborg <sam@ravnborg.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Alexey Dobriyan <adobriyan@gmail.com>,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: 2.6.23-rc1: BUG_ON in kmap_atomic_prot()
Date: Mon, 23 Jul 2007 23:37:19 +0200	[thread overview]
Message-ID: <20070723213719.GA9565@uranus.ravnborg.org> (raw)
In-Reply-To: <alpine.LFD.0.999.0707231415511.3607@woody.linux-foundation.org>

> 
> For example, missing from the call graph is
> 
> 	get_page_from_freelist ->
> 	  buffered_rmqueue ->		[ missing - inlined ]
> 	    prep_new_page ->		[ missing - inlined ]
> 	      prep_zero_page ->		[ missing - inlined ]
> 		clear_highpage ->	[ missing - inlined ]
> 		  kmap_atomic ->	[ missing - tailcall ]
> 		    kmap_atomic_prot
> 
> (and I'm also pretty sure gcc 
> is overly aggressive at inlining, and that it causes us pain for 
> debugging, but whatever)

mm/page_alloc.c:static inline void prep_zero_page(struct page *page, int order, gfp_t gfp_flags)
include/linux/highmem.h:static inline void clear_highpage(struct page *page)

So at least two was explicit marked inline.
Now if that made I change i dunno.

	Sam

  reply	other threads:[~2007-07-23 21:36 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <alpine.LFD.0.999.0707221351030.3607@woody.linux-foundation.org>
     [not found] ` <20070723183839.GA5874@martell.zuzino.mipt.ru>
     [not found]   ` <20070723190152.GA5755@martell.zuzino.mipt.ru>
2007-07-23 20:24     ` 2.6.23-rc1: BUG_ON in kmap_atomic_prot() Andrew Morton
2007-07-23 20:40       ` Alexey Dobriyan
2007-07-23 21:01         ` Alexey Dobriyan
2007-07-23 21:11           ` Andrew Morton
2007-07-23 21:28             ` Linus Torvalds
2007-07-23 21:37               ` Sam Ravnborg [this message]
2007-07-24 17:59               ` Adrian Bunk
2007-07-24 18:14                 ` Linus Torvalds
2007-07-24 18:28                   ` Andrew Morton
2007-07-24 19:15                     ` Linus Torvalds
2007-07-24 19:40                       ` Adrian Bunk
2007-07-24 19:48                         ` Linus Torvalds
2007-07-26 18:07                           ` Adrian Bunk
2007-07-26 18:19                             ` Linus Torvalds
2007-07-24 20:27                       ` Andi Kleen
2007-07-24 19:45                         ` Linus Torvalds
2007-07-26  6:09                   ` commit 7e92b4fc34 - x86, serial: convert legacy COM ports to platform devices - broke my serial console H. Peter Anvin
2007-07-23 22:04             ` 2.6.23-rc1: BUG_ON in kmap_atomic_prot() Alexey Dobriyan
2007-07-23 22:27               ` Andrew Morton
2007-07-24  5:20                 ` Alexey Dobriyan
2007-07-24  8:17                 ` Jens Axboe
2007-07-24  8:22                   ` Jens Axboe
2007-07-24  8:34                     ` Andrew Morton
2007-07-24 14:00                       ` Dan Williams
2007-07-24 13:55                     ` Dan Williams
2007-07-24 10:01       ` Mike Galbraith
2007-07-24 10:37         ` Mike Galbraith
2007-07-24 16:28         ` Andrew Morton
2007-07-24 18:25           ` Linus Torvalds
2007-07-24 20:05             ` Alexey Dobriyan
2007-07-25  5:09             ` Mike Galbraith

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