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* Regression still in next for drop migrate type checks
@ 2017-11-03 16:00 Tony Lindgren
  2017-11-03 17:32 ` Andrew Morton
  2017-11-04  8:25 ` Michal Hocko
  0 siblings, 2 replies; 9+ messages in thread
From: Tony Lindgren @ 2017-11-03 16:00 UTC (permalink / raw)
  To: Joonsoo Kim, Michal Hocko, Andrew Morton, Stephen Rothwell
  Cc: Linus Torvalds, Russell King - ARM Linux, linux-kernel

Hi all,

Looks like I'm still carrying patch "mm: distinguish CMA and MOVABLE
isolation in  has_unmovable_pages" from Michal [1] for commit e1d753dff0fa
("mm: drop migrate type checks from has_unmovable_pages") and Linux next
has been broken for CMA for few weeks now as noted in the discussion
also at [1].

What's the status of this regression? How come it's been known
broken for two weeks and still not fixed or reverted in next?
This is clearly is not suitable for "wider testing" ;)

For reference, the symptoms I'm seeing is that at least loadable
modules using fail to work CMA produce the following errors:

# dmesg | grep -B1 cma
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] cma: Reserved 16 MiB at 0xbe800000
--
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Memory: 997000K/1046528K available (9216K kernel code, 815K rwdata, 2464K rodata, 1024K init, 7558K bss, 33144K reserved, 16384K cma-reserved, 243712K highmem)
--
[   22.436920] twl_rtc 48070000.i2c:twl@48:rtc: rtc core: registered 48070000.i2c:twl@48:rtc as rtc0
[   23.593933] cma: cma_alloc: alloc failed, req-size: 32 pages, ret: -16
--
[   24.768920] ehci-omap 4a064c00.ehci: new USB bus registered, assigned bus number 1
[   24.828338] cma: cma_alloc: alloc failed, req-size: 1 pages, ret: -16
--
[   27.030517] DSS: OMAP DSS rev 4.0
[   27.068237] cma: cma_alloc: alloc failed, req-size: 1 pages, ret: -16
--
[   27.651489] random: crng init done
[   27.738494] cma: cma_alloc: alloc failed, req-size: 129 pages, ret: -16

Regards,

Tony


[1] https://lkml.org/lkml/2017/10/19/364

^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2017-11-07  2:20 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-11-03 16:00 Regression still in next for drop migrate type checks Tony Lindgren
2017-11-03 17:32 ` Andrew Morton
2017-11-03 17:57   ` Tony Lindgren
2017-11-04  8:25 ` Michal Hocko
2017-11-04  8:35   ` Michal Hocko
2017-11-06 23:22     ` Tony Lindgren
2017-11-06 14:38   ` Tony Lindgren
2017-11-06 14:42     ` Michal Hocko
2017-11-07  2:20       ` Tony Lindgren

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