Re: [PATCH] eliminte NMI entry/ exit code

George Anzinger wrote:

The NMI entry and exit code fiddles with bits in the preempt count. Ifan NMI happens while some other code is doing the same, bits will belost. This patch removes this modify code from the NMI path till we cancome up with something better.


Humour me for a minute here...
NMI restores preempt_count back to its old value upon exit, right?
So what does a race case look like?

Nick

--
SUSE Labs, Novell Inc.

Send instant messages to your online friends http://au.messenger.yahoo.com-

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Follow-Ups:
- Re: [PATCH] eliminte NMI entry/ exit code
  - From: George Anzinger <[email protected]>

References:
- [PATCH] eliminte NMI entry/ exit code
  - From: George Anzinger <[email protected]>

Prev by Date: [PATCH] eliminte NMI entry/ exit code
Next by Date: Re: [patch] Real-Time Preemption, -RT-2.6.13-rc4-V0.7.53-01, High Resolution Timers & RCU-tasklist features
Previous by thread: [PATCH] eliminte NMI entry/ exit code
Next by thread: Re: [PATCH] eliminte NMI entry/ exit code
Index(es):
- Date
- Thread

[Index of Archives] [Kernel Newbies] [Netfilter] [Bugtraq] [Photo] [Gimp] [Yosemite News] [MIPS Linux] [ARM Linux] [Linux Security] [Linux RAID] [Video 4 Linux] [Linux for the blind]