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Message-ID: <87ilwonj0c.fsf@email.froward.int.ebiederm.org>
Date:   Fri, 19 Nov 2021 11:38:11 -0600
From:   ebiederm@...ssion.com (Eric W. Biederman)
To:     Kyle Huey <me@...ehuey.com>
Cc:     linux-kernel@...r.kernel.org,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Oleg Nesterov <oleg@...hat.com>,
        Al Viro <viro@...IV.linux.org.uk>, linux-api@...r.kernel.org,
        Kees Cook <keescook@...omium.org>,
        Robert O'Callahan <rocallahan@...il.com>
Subject: Re: [PATCH 6/6] coredump: Limit coredumps to a single thread group

Kyle Huey <me@...ehuey.com> writes:

>> Solve this by making a userspace visible change to only kill a single
>> process/thread group. [...] With LinuxThreads long gone I don't
>> expect anyone to have a notice this behavior change in practice.
>
> FWIW rr's test suite does have an explicit test that we correctly record and 
> replay the old behavior. We don't actually care what that behavior is though,
> so we will update our tests.

Thanks.  I am keep being afraid someone will have a program where it
actually matters.  But so far so good.

Eric

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