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Re: install_special_mapping && vm_pgoff (Was: vvar, gup && coredump)
- From: Pedro Alves <palves at redhat dot com>
- To: Oleg Nesterov <oleg at redhat dot com>, Andy Lutomirski <luto at amacapital dot net>, Hugh Dickins <hughd at google dot com>, Linus Torvalds <torvalds at linux-foundation dot org>
- Cc: Jan Kratochvil <jan dot kratochvil at redhat dot com>, Sergio Durigan Junior <sergiodj at redhat dot com>, GDB Patches <gdb-patches at sourceware dot org>, "linux-kernel at vger dot kernel dot org" <linux-kernel at vger dot kernel dot org>
- Date: Mon, 16 Mar 2015 19:40:31 +0000
- Subject: Re: install_special_mapping && vm_pgoff (Was: vvar, gup && coredump)
- Authentication-results: sourceware.org; auth=none
- References: <878ufc9kau dot fsf at redhat dot com> <20150305154827 dot GA9441 at host1 dot jankratochvil dot net> <87zj7r5fpz dot fsf at redhat dot com> <20150305205744 dot GA13165 at host1 dot jankratochvil dot net> <20150311200052 dot GA22654 at redhat dot com> <20150312143438 dot GA4338 at redhat dot com> <CALCETrW5rmAHutzm_OwK2LTd_J0XByV3pvWGyW=AmC=v7rLfhQ at mail dot gmail dot com> <20150312165423 dot GA10073 at redhat dot com> <20150312174653 dot GA13086 at redhat dot com> <20150316190154 dot GA18472 at redhat dot com>
Thanks for looking over all this, guys. Really appreciated.
On 03/16/2015 07:01 PM, Oleg Nesterov wrote:
> is wrong. To verify, I changed show_map_vma() to expose pgoff even if !file,
> but this test-case can show the problem too:
Might be good to add tests like this to selftests/ once all
this is sorted.
Pedro Alves