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From: Linus Torvalds <torvalds@linux-foundation.org>
To: David Howells <dhowells@redhat.com>
Cc: David Sterba <dsterba@suse.cz>,
	Rasmus Villemoes <linux@rasmusvillemoes.dk>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Peter Zijlstra <peterz@infradead.org>,
	raven@themaw.net, Christian Brauner <christian@brauner.io>,
	keyrings@vger.kernel.org, linux-usb@vger.kernel.org,
	linux-block <linux-block@vger.kernel.org>,
	LSM List <linux-security-module@vger.kernel.org>,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>,
	Linux API <linux-api@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [GIT PULL] pipe: Notification queue preparation
Date: Thu, 5 Dec 2019 09:12:42 -0800	[thread overview]
Message-ID: <CAHk-=wgwwJ+ZEtycujFdNmpS8TjwCYyT+oHfV7d-GekyaX91xg@mail.gmail.com> (raw)
In-Reply-To: <1593.1575554217@warthog.procyon.org.uk>

On Thu, Dec 5, 2019 at 5:57 AM David Howells <dhowells@redhat.com> wrote:
>
> David Sterba <dsterba@suse.cz> wrote:
>
> > [<0>] pipe_write+0x1be/0x4b0
>
> Can you get me a line number of that?  Assuming you've built with -g, load
> vmlinux into gdb and do "i li pipe_write+0x1be".

If the kernel is built with debug info (which you need for the gdb
command anyway), it's much better to just use

   ./scripts/decode_stacktrace.sh

which gives all the information for the whole backtrace.

It would be interesting to hear if somebody else is waiting on the
read side too.

             Linus

  reply	other threads:[~2019-12-05 17:13 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-25 22:39 [GIT PULL] pipe: Notification queue preparation David Howells
2019-11-30 23:05 ` pr-tracker-bot
2019-12-05 12:58 ` David Sterba
2019-12-05 13:56 ` David Howells
2019-12-05 17:12   ` Linus Torvalds [this message]
2019-12-05 17:24     ` Linus Torvalds
2019-12-05 17:21   ` David Sterba
2019-12-05 17:33     ` Linus Torvalds
2019-12-05 17:25   ` David Howells
2019-12-05 18:18     ` David Sterba

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