[lkml]   [2010]   [Mar]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] Prevent nested interrupts when the IRQ stack is near overflowing v2
> I think the patch as posted solves a real problem, but also perpetuates a bad 
> situation.
> At minimum we should print a (one-time) warning that some badness occured.
> That would push us either in the direction of improving drivers, or towards
> improving the generic code.

What should a driver do to prevent that? I don't see what it could do
short of castrating itself (like refusing to use multiple ports)
As Linus says the driver doesn't know if setting IRQF_DISABLED is safe.

-- -- Speaking for myself only.

 \ /
  Last update: 2010-03-25 19:29    [W:0.113 / U:3.524 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site