Messages in this thread |  | | Date | Mon, 16 Dec 2013 15:43:43 +0100 | From | Ludovic Desroches <> | Subject | Re: possible regression on 3.13 when calling flush_dcache_page |
| |
Hello,
On Fri, Dec 13, 2013 at 10:59:09AM +0900, Joonsoo Kim wrote: > On Thu, Dec 12, 2013 at 03:36:19PM +0100, Ludovic Desroches wrote: > > fix mmc mailing list address error > > > > On Thu, Dec 12, 2013 at 03:31:50PM +0100, Ludovic Desroches wrote: > > > Hi, > > > > > > With v3.13-rc3 I have an error when the atmel-mci driver calls > > > flush_dcache_page (log at the end of the message). > > > > > > Since I didn't have it before, I did a git bisect and the commit introducing > > > the error is the following one: > > > > > > 106a74e slab: replace free and inuse in struct slab with newly introduced active > > > > > > I don't know if this commit has introduced a bug or if it has revealed a bug > > > in the atmel-mci driver. > > Hello, > > I think that this commit may not introduce a bug. This patch remove one > variable on slab management structure and replace variable name. So there > is no functional change. >
If I have reverted this patch and other ones you did on top of it and the issue disappear.
> I doubt that side-effect of this patch reveals a bug in other place. > Side-effect is reduced memory usage for slab management structure. It would > makes some slabs have more objects with more density since slab management > structure is sometimes on the page for objects. So if it diminishes, more > objects can be in the page. > > Anyway, I will look at it more. If you have any progress, please let me know.
No progress at the moment.
Regards
Ludovic
> > Thanks. > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo@kvack.org. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
|  |