login
Header Space

 
 

Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24

Score:
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]
To: Pekka Enberg <penberg@...>
Cc: Linus Torvalds <torvalds@...>, Rafael J. Wysocki <rjw@...>, Pawel Staszewski <pstaszewski@...>, LKML <linux-kernel@...>, Adrian Bunk <bunk@...>, Andrew Morton <akpm@...>, Natalie Protasevich <protasnb@...>
Date: Monday, March 31, 2008 - 2:56 pm

On Sun, 30 Mar 2008, Pekka Enberg wrote:


Yes, that means that __GFP_ZERO can be passed to the page allocator there. 
Same thing as happens when kmalloc() calls kmalloc_large() (as you pointed 
out before). The harm is zeroing an allocated object twice in rare cases 
that trigger the fallback path and that is avoided by Linus' patch.

For the fix to get rid of the backtraces that started this discussion see
commit 9c312058b2e530722c7bd30c1b6f26eea35dc5fe

--
Previous message: [thread] [date] [author]
Next message: [thread] [date] [author]

Messages in current thread:
2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Thu Mar 27, 6:53 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Fri Mar 28, 6:37 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Thomas Gleixner, (Fri Mar 28, 6:24 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Fri Mar 28, 12:12 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Thomas Gleixner, (Fri Mar 28, 12:18 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Thomas Gleixner, (Fri Mar 28, 6:58 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Peter Zijlstra, (Fri Mar 28, 7:00 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Adrian Bunk, (Fri Mar 28, 7:13 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Peter Zijlstra, (Fri Mar 28, 7:44 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Thomas Gleixner, (Fri Mar 28, 7:16 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Adrian Bunk, (Fri Mar 28, 7:31 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Fri Mar 28, 12:17 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Ingo Molnar, (Fri Mar 28, 4:42 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Fri Mar 28, 6:33 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Adrian Bunk, (Fri Mar 28, 1:06 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Thu Mar 27, 10:30 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Fri Mar 28, 12:10 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 12:47 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Fri Mar 28, 6:28 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Ingo Molnar, (Mon Mar 31, 9:34 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Adrian Bunk, (Fri Mar 28, 1:36 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Ingo Molnar, (Fri Mar 28, 4:33 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Haavard Skinnemoen, (Fri Mar 28, 7:29 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Fri Mar 28, 12:11 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Yinghai Lu, (Thu Mar 27, 11:31 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Kamalesh Babulal, (Mon Mar 31, 6:14 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Mon Mar 31, 8:10 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Christoph Lameter, (Thu Mar 27, 11:24 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 12:00 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Christoph Lameter, (Fri Mar 28, 2:33 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 3:25 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Christoph Lameter, (Sat Mar 29, 4:42 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Sat Mar 29, 5:29 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Christoph Lameter, (Mon Mar 31, 2:45 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Pekka Enberg, (Sat Mar 29, 7:52 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Christoph Lameter, (Mon Mar 31, 2:56 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Pekka Enberg, (Fri Mar 28, 1:15 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 1:27 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Christoph Lameter, (Fri Mar 28, 2:37 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 3:32 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Pekka Enberg, (Fri Mar 28, 2:08 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 2:20 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Pekka Enberg, (Fri Mar 28, 3:59 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 4:24 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Andrew Morton, (Fri Mar 28, 2:47 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 3:37 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Linus Torvalds, (Fri Mar 28, 3:59 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Christoph Lameter, (Fri Mar 28, 2:53 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Christoph Lameter, (Fri Mar 28, 2:38 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Paweł Staszewski, (Fri Mar 28, 6:48 am)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Andrew Morton, (Fri Mar 28, 1:46 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Fri Mar 28, 5:57 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Carlos R. Mafra, (Thu Mar 27, 8:18 pm)
Re: 2.6.25-rc7-git2: Reported regressions from 2.6.24, Rafael J. Wysocki, (Thu Mar 27, 8:23 pm)
speck-geostationary