Re: Linux 3.19-rc3

[Michal Hocko]

On Thu 08-01-15 10:37:50, Mark Langsdorf wrote:
> On 01/08/2015 09:08 AM, Michal Hocko wrote:
> >[CCing linux-mm and CMA people]
> >[Full message here:
> >http://article.gmane.org/gmane.linux.ports.arm.kernel/383669]
> 
> >>[ 1054.095277] DMA: 109*64kB (UR) 53*128kB (R) 8*256kB (R) 0*512kB 0*1024kB
> >>0*2048kB 1*4096kB (R) 0*8192kB 0*16384kB 1*32768kB (R) 0*65536kB = 52672kB
> >>[ 1054.108621] Normal: 191*64kB (MR) 0*128kB 0*256kB 0*512kB 0*1024kB
> >>0*2048kB 0*4096kB 0*8192kB 0*16384kB 0*32768kB 0*65536kB = 12224kB
> >[...]
> >>[ 1054.142545] Free swap  = 6598400kB
> >>[ 1054.145928] Total swap = 8388544kB
> >>[ 1054.149317] 262112 pages RAM
> >>[ 1054.152180] 0 pages HighMem/MovableOnly
> >>[ 1054.155995] 18446744073709544361 pages reserved
> >>[ 1054.160505] 8192 pages cma reserved
> >
> >Besides underflow in the reserved pages accounting mentioned in other
> >email the free lists look strange as well. All free blocks with some memory
> >are marked as reserved. I would suspect something CMA related.
> 
> I get the same failure with CMA turned off entirely. I assume that means
> CMA is not the culprit.

OK. Do you see all the free page blocks completely reserved without CMA
as well?

-- 
Michal Hocko
SUSE Labs
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