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 [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• References:
  • [PATCH] enable interrupts in user path of page fault.
    • From: Steven Rostedt <[email protected]>
  • Re: [PATCH] enable interrupts in user path of page fault.
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH] enable interrupts in user path of page fault.
    • From: Steven Rostedt <[email protected]>

• Prev by Date: Re: Per container statistics (containerstats)
• Next by Date: divorce CONFIG_X86_PAE from CONFIG_HIGHMEM64G
• Previous by thread: Re: [PATCH] enable interrupts in user path of page fault.
• Next by thread: Re: [PATCH] enable interrupts in user path of page fault.
• Index(es):
  • Date
  • Thread

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