Messages in this thread | | | Date | Fri, 12 Dec 2003 15:44:01 +0000 | From | Dave Jones <> | Subject | Re: [DOCUMENTATION] Revised Unreliable Kernel Locking Guide |
| |
On Fri, Dec 12, 2003 at 04:24:18PM +1100, Rusty Russell wrote: > OK, I've put the html version up for your reading pleasure: the diff > is quite extensive and hard to read. > > http://www.kernel.org/pub/linux/kernel/people/rusty/kernel-locking/ > > Feedback welcome,
Hi Rusty, Might be worth mentioning in the Per-CPU data section that code doing operations on CPU registers (MSRs and the like) needs to be protected by an explicit preempt_disable() / preempt_enable() pair if it's doing operations that it expects to run on a specific CPU.
For examples, see arch/i386/kernel/msr.c & cpuid.c
Dave
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |