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]