Messages in this thread | | | Date | Sat, 23 Jan 1999 06:33:03 -0500 (EST) | From | Alexander Viro <> | Subject | Re: [OFFTOPIC] Re: Linux Kernel constraints! |
| |
On Sat, 23 Jan 1999, pleXus wrote:
> Can someone more knowledgeable explain to me whether or not the KERNEL runs > on more than one processor.. I am curious, because that would be > interesting to hear.
It does. Kernel is not a separate process and system call is served on the same processor where the process runs. What the original article probably refered to is the kernel_lock. It doesn't cover everything, so saying that there can't be two processors actually running in the kernel mode is wrong. But it still covers too many places in the kernel. Bottom halves are SMP-safe, so they may run on *all* processors simultaneously.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |