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Re: vvar, gup && coredump
- From: Sergio Durigan Junior <sergiodj at redhat dot com>
- To: Oleg Nesterov <oleg at redhat dot com>
- Cc: Andy Lutomirski <luto at amacapital dot net>, Jan Kratochvil <jan dot kratochvil at redhat dot com>, GDB Patches <gdb-patches at sourceware dot org>, Pedro Alves <palves at redhat dot com>, "linux-kernel\ at vger dot kernel dot org" <linux-kernel at vger dot kernel dot org>
- Date: Thu, 12 Mar 2015 13:45:29 -0400
- Subject: Re: 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> <CALCETrUGu5Wc7BbbQ4_tn29JGbyotUJay67EHBEgSa8-bz01Jg at mail dot gmail dot com> <20150312173901 dot GA12225 at redhat dot com>
On Thursday, March 12 2015, Oleg Nesterov wrote:
>> gdb will still need changes, though, right?
>
> This is up to gdb developers. To me, it should simply skip this
> VM_DONTDUMP vma.
If I understood this discussion correctly (and thanks Andy and Oleg for,
*ahem*, dumping all this useful information for us!), GDB will not need
modifications in the Linux kernel in this area. In fact, my patch
already implements the "ignore VM_DONTDUMP mappings" part, so we're
pretty much covered.
Thanks,
--
Sergio
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