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Date: Thu, 7 Jun 2007 19:29:35 -0700 (PDT) From: Linus Torvalds <torvalds@...ux-foundation.org> To: Steven Rostedt <rostedt@...dmis.org> cc: Andrew Morton <akpm@...ux-foundation.org>, LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>, Christoph Hellwig <hch@...radead.org>, Andi Kleen <ak@...e.de> Subject: Re: [PATCH] enable interrupts in user path of page fault. On Thu, 7 Jun 2007, Steven Rostedt wrote: > > I didn't realize that userspace was allowed to run with interrupts > disabled. It isn't, normally. You *can* try to do it by using iopl(), but it's not practical. It's certainly not practical to expect a page fault to not enable them again, since we obviously need interrupts enabled just to handle any IO. So don't worry about it. Linus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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