Re: some question about order0 page allocation
From: Michal Hocko <mhocko@kernel.org>
Date: 2016-10-14 15:26:20
On Fri 14-10-16 17:29:34, yoma sophian wrote: [...]
[ 5515.127555] dialog invoked oom-killer: gfp_mask=0x80d0, order=0, oom_score_adj=0
This looks like a GFP_KERNEL + something allocation
[ 5515.444859] Normal: 4314*4kB (UEMC) 3586*8kB (UMC) 131*16kB (MC) 21*32kB (C) 6*64kB (C) 1*128kB (C) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 49224kB
And it seems like CMA blocks are spread in all orders and no unmovable allocations can fallback in them. It seems that there should be some movable blocks but I do not have any idea why those are not used. Anyway this is where I would start investigating. -- Michal Hocko SUSE Labs -- 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>