From: Jakub Wilk <jwilk@jwilk.net>
To: Jonny Grant <jg@jguk.org>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>, <linux-man@vger.kernel.org>
Subject: Re: core(5)
Date: Sat, 6 Jun 2020 16:50:03 +0200 [thread overview]
Message-ID: <20200606145003.x37j5hywuyn32lpf@jwilk.net> (raw)
In-Reply-To: <9000a831-9a0f-0577-5755-95b301218383@jguk.org>
* Jonny Grant <jg@jguk.org>, 2020-06-06, 14:18:
>3) Could i ask to clarify my understanding. For this "The binary being
>executed by the process does not have read
> permission enabled."
>-- is this when the binary permissions are changed after it starts
>running?
No, AFAICS the permission check is done when the process starts.
>4) I noticed %P always gave me P1200 even after a reboot I recall, I
>had expected it be '1', do you see similar?
Here %P expands to the pid of the process, as expected:
$ uname -rv
5.6.0-2-amd64 #1 SMP Debian 5.6.14-1 (2020-05-23)
$ sudo sysctl -w kernel.core_pattern="%P-%e-%s.core"
kernel.core_pattern = %P-%e-%s.core
$ ulimit -c unlimited
$ sh -c 'kill -ABRT $$'
Aborted (core dumped)
$ ls *.core
7154-sh-6.core
--
Jakub Wilk
next prev parent reply other threads:[~2020-06-06 14:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-06 13:18 core(5) Jonny Grant
2020-06-06 14:50 ` Jakub Wilk [this message]
2020-06-06 15:45 ` core(5) Jonny Grant
2020-06-06 18:32 ` core(5) Jakub Wilk
2020-06-06 19:39 ` core(5) Michael Kerrisk (man-pages)
2020-06-06 21:16 ` core(5) Jonny Grant
2020-06-08 16:18 ` core(5) Michael Kerrisk (man-pages)
2020-06-08 16:06 ` core(5) Michael Kerrisk (man-pages)
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