tsu

4 ms·

1. 1.▲
   by tsu 8y ago

   Having same issue. Seems to be a bug.
2. 2.▲
   Mutt 1.7.0 released(mutt.org)

   2 points by tsu 10y ago|0 comments
3. 3.▲
   by tsu 11y ago

   it seems to me spinlocks are fundamentally dangerous in user space because you cannot disable preemption in user space as you can in kernel space.
4. 4.▲
   by tsu 12y ago

   how slow was that then?
5. 5.▲
   by tsu 12y ago

   compare-and-swap instruction itself may not be privileged operation but user space spin-lock seldom work in user-space (it's dangerous at least), because a user thread could be preempted.