Messages in this thread | | | Date | Wed, 25 Jan 2017 01:22:17 +0300 | From | "Kirill A. Shutemov" <> | Subject | Re: [PATCH 01/12] uprobes: split THPs before trying replace them |
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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" <kirill.shutemov@linux.intel.com> 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?
Looks like we can end up with endless retry loop in uprobe_write_opcode().
> How come nobody noticed (and reported) this when using the feature?
I guess it's not often used for anon memory.
-- Kirill A. Shutemov
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