[lkml]   [2006]   [Oct]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] generic signal code (small new feature - userspace signal mask), kernel 2.6.16
On Mon, 2006-10-16 at 15:28 +0200, Andi Kleen wrote:
> Linus Torvalds <> writes:
> >
> > Why? You're doing user-space accesses from within critical sections with a
> > spinlock, and that's just a big no-no. Think page faults, swapping etc.
> He could pin the page in memory like futexes do. One page pinned
> per thread shouldn't be a big DOS issue either.
> -Andi

Whatever the final solution ends up being (assuming this actually goes
somewhere), it should be extensible enough for other uses (for example,
some sort of "please don't preempt me right now" hint for use with
pthread spinlocks.)

Nicholas Miell <>

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2006-10-17 01:19    [W:0.042 / U:9.096 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site