> >
> > The first time the breakpoint is hit on a page, it replaces the text
> > page with anon page. Now lets assume we insert breakpoints in all the
> > pages in a range. Here each page is individually replaced by a non THP
> > anonpage. (since we dont have bulk breakpoint insertion support,
>
On Wed, Jan 25, 2017 at 01:35:10PM -0500, Johannes Weiner wrote:
> On Wed, Jan 25, 2017 at 08:55:22AM -0800, Srikar Dronamraju wrote:
> > > >
> > > > > For THPs page_check_address() always fails. It's better to split them
> > > > > first before trying to replace.
> > > >
> > > > So what does this
On Wed, Jan 25, 2017 at 08:55:22AM -0800, Srikar Dronamraju wrote:
> > >
> > > > For THPs page_check_address() always fails. It's better to split them
> > > > first before trying to replace.
> > >
> > > So what does this mean. uprobes simply fails to work when trying to
> > > place a probe into
On Tue, Jan 24, 2017 at 07:28:13PM +0300, Kirill A. Shutemov wrote:
> For THPs page_check_address() always fails. It's better to split them
> first before trying to replace.
>
> Signed-off-by: Kirill A. Shutemov
> Cc: Oleg Nesterov
> Cc: Peter Zijlstra
Acked-by: Johannes Weiner
On Wed, Jan 25, 2017 at 08:55:22AM -0800, Srikar Dronamraju wrote:
> > >
> > > > For THPs page_check_address() always fails. It's better to split them
> > > > first before trying to replace.
> > >
> > > So what does this mean. uprobes simply fails to work when trying to
> > > place a probe into
On Wed, 2017-01-25 at 08:55 -0800, Srikar Dronamraju wrote:
> >
> > >
> > >
> > > >
> > > > For THPs page_check_address() always fails. It's better to
> > > > split them
> > > > first before trying to replace.
> > > So what does this mean. uprobes simply fails to work when trying
> > > to
> >
> >
> > > For THPs page_check_address() always fails. It's better to split them
> > > first before trying to replace.
> >
> > So what does this mean. uprobes simply fails to work when trying to
> > place a probe into a THP memory region?
>
> Looks like we can end up with endless retry loop in u
On Tue, Jan 24, 2017 at 02:35:59PM -0800, Andrew Morton wrote:
> On Wed, 25 Jan 2017 01:22:17 +0300 "Kirill A. Shutemov"
> wrote:
>
> > On Tue, Jan 24, 2017 at 01:28:49PM -0800, Andrew Morton wrote:
> > > On Tue, 24 Jan 2017 19:28:13 +0300 "Kirill A. Shutemov"
> > > wrote:
> > >
> > > > For T
On Wed, 25 Jan 2017 01:22:17 +0300 "Kirill A. Shutemov"
wrote:
> On Tue, Jan 24, 2017 at 01:28:49PM -0800, Andrew Morton wrote:
> > On Tue, 24 Jan 2017 19:28:13 +0300 "Kirill A. Shutemov"
> > wrote:
> >
> > > For THPs page_check_address() always fails. It's better to split them
> > > first be
On Tue, Jan 24, 2017 at 01:28:49PM -0800, Andrew Morton wrote:
> On Tue, 24 Jan 2017 19:28:13 +0300 "Kirill A. Shutemov"
> wrote:
>
> > For THPs page_check_address() always fails. It's better to split them
> > first before trying to replace.
>
> So what does this mean. uprobes simply fails to
On Tue, 24 Jan 2017 19:28:13 +0300 "Kirill A. Shutemov"
wrote:
> For THPs page_check_address() always fails. It's better to split them
> first before trying to replace.
So what does this mean. uprobes simply fails to work when trying to
place a probe into a THP memory region? How come nobody
On Tue, 2017-01-24 at 19:28 +0300, Kirill A. Shutemov wrote:
> For THPs page_check_address() always fails. It's better to split them
> first before trying to replace.
>
> Signed-off-by: Kirill A. Shutemov
> Cc: Oleg Nesterov
> Cc: Peter Zijlstra
Acked-by: Rik van Riel
For THPs page_check_address() always fails. It's better to split them
first before trying to replace.
Signed-off-by: Kirill A. Shutemov
Cc: Oleg Nesterov
Cc: Peter Zijlstra
---
kernel/events/uprobes.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/events/uprobes
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