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" <kirill@xxxxxxxxxxxxx> 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" <kirill.shutemov@xxxxxxxxxxxxxxx> 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. > > OK, can we please include discussion of these things in the changelog? Okay, I'll try to come up with a test case too. -- Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
