Messages in this thread | | | Subject | Re: [RFC]mm/zsmalloc,: trigger BUG_ON in function zs_map_object. | From | Yisheng Xie <> | Date | Wed, 29 Mar 2017 15:53:21 +0800 |
| |
Hi Sergey,
Thanks for your comment! On 2017/3/29 14:42, Sergey Senozhatsky wrote: > On (03/29/17 09:20), Minchan Kim wrote: >> Hello, >> >> On Tue, Mar 28, 2017 at 03:20:22PM +0800, Yisheng Xie wrote: >>> Hi, all, >>> >>> We had backport the no-lru migration to linux-4.1, meanwhile change the >>> ZS_MAX_ZSPAGE_ORDER to 3. Then we met a BUG_ON(!page[1]). >> >> Hmm, I don't know how you backported. >> >> There isn't any problem with default ZS_MAX_ZSPAGE_ORDER. Right? >> So, it happens only if you changed it to 3? > > I agree with Minchan. too much things could have gone wrong during the backport. > >> Could you tell me what is your base kernel? and what zram/zsmalloc >> version(ie, from what kernel version) you backported to your >> base kernel? > > agree again. > > > > Yisheng, do you have this commit applied? No, we missed this patch, I will try it. Really thanks for that.
Thanks Yisheng Xie
> > commit c102f07ca0b04f2cb49cfc161c83f6239d17f491 > Author: Junil Lee <junil0814.lee@lge.com> > Date: Wed Jan 20 14:58:18 2016 -0800 > > zsmalloc: fix migrate_zspage-zs_free race condition > > > -ss > > . >
| |