Re: [PATCH] mm: add resched points to remap_pmd_range/ioremap_pmd_range

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri 24-07-15 09:56:27, Jörn Engel wrote:
> On Fri, Jul 24, 2015 at 09:04:21AM +0200, Michal Hocko wrote:
> > On Thu 23-07-15 14:54:33, Spencer Baugh wrote:
> > > From: Joern Engel <joern@xxxxxxxxx>
> > > 
> > > Mapping large memory spaces can be slow and prevent high-priority
> > > realtime threads from preempting lower-priority threads for a long time.
> > 
> > How can a lower priority task block the high priority one? Do you have
> > preemption disabled?
> 
> Yes.

Yes what? PREEMT enabled and still low priority task starving a high
priority one? What is your exact setup?
-- 
Michal Hocko
SUSE Labs

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>



[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux]     [Linux OMAP]     [Linux MIPS]     [ECOS]     [Asterisk Internet PBX]     [Linux API]