On Tue, 7 May 2019 00:22:03 +0900
Masami Hiramatsu wrote:
> Hi Steve,
>
> It seems I missed this message...
No problem. The number of times I missed messages... ugh.
>
> >
> > I'm curious, what interrupt handler are kprobes executing in that needs
> > random user space addresses?
>
>
Hi Steve,
It seems I missed this message...
On Thu, 21 Mar 2019 22:46:02 -0400
Steven Rostedt wrote:
> On Mon, 18 Mar 2019 15:43:17 +0900
> Masami Hiramatsu wrote:
>
> > WARN_ON_IN_IRQ() assumes that the access_ok() and following
> > user memory access can sleep. But this assumption is not
>
On Mon, 18 Mar 2019 15:43:17 +0900
Masami Hiramatsu wrote:
> WARN_ON_IN_IRQ() assumes that the access_ok() and following
> user memory access can sleep. But this assumption is not
> always correct; when the pagefault is disabled, following
> memory access will just returns -EFAULT and never
WARN_ON_IN_IRQ() assumes that the access_ok() and following
user memory access can sleep. But this assumption is not
always correct; when the pagefault is disabled, following
memory access will just returns -EFAULT and never sleep.
Add pagefault_disabled() check in WARN_ON_ONCE() so that
it can
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