[lkml]   [2009]   [Dec]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [Fdutils] DMA cache consistency bug introduced in 2.6.28
> > Does pmqos work with apci=off etc.? 
> yes
> > I didn't think it shut down
> > the classic "HLT" idle, does it?
> it does if you specify a latency of 0; it will then go into the
> spin-only state until you give up your latency requirement

I looked at it this evening, but it seems like pm_qos is not
interrupt safe (e.g. calls blocking notifiers) and floppy currently does
enable/disable_hlt from interrupts and bottom halves.

Would need some more infrastructure work or restructuring
of the floppy driver.

-- -- Speaking for myself only.

 \ /
  Last update: 2009-12-26 17:43    [W:0.296 / U:7.700 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site