lkml.org 
[lkml]   [2009]   [Sep]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Regression in suspend to ram in 2.6.31-rc kernels
On Fri, Sep 04, 2009 at 12:29:04AM +0200, Zdenek Kabelac wrote:
> Ok - another bisect game played - and unexpected winner is:
>
> (fat: add ->sync_fs)
>
> f83d6d46e7adf241a064a4a425e5cd8a8fd8925f
>
> Reverting this commit with current -rc8 kernel makes the system happy
> during the suspend/resume cycle. Obviously it has it price :) so just
> plain revert is probably not a good solution so the problem looks
> 'more serious' (fat is not the only fs with this patch) thus adding
> original author to this thread.

Note that when you rever this patch on a current kernel you do actually
get different behvaviour than when going back to before this commit.

In 2.6.30 we called ->write_super in the various sync functions and
then ->sync_fs, in 2.6.31-rc8 you would not call any syncing at all
anymore. I think this patch might just be a symptom for a situation
where the suspend code causes a sync and the mmc driver can't handle
it anymore.


\
 
 \ /
  Last update: 2009-09-04 01:27    [W:0.380 / U:0.576 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site