linux-kernel - Re: [Patch -tip 1/3] Tracing/ftrace: Relay unhandled entry output

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 25 Sep 2008 17:56:32 +0200
From:	"Frédéric Weisbecker" <fweisbec@...il.com>
To:	"Pekka Paalanen" <pq@....fi>
Cc:	"Steven Rostedt" <rostedt@...dmis.org>,
	"Ingo Molnar" <mingo@...e.hu>, linux-kernel@...r.kernel.org
Subject: Re: [Patch -tip 1/3] Tracing/ftrace: Relay unhandled entry output

2008/9/25 Pekka Paalanen <pq@....fi>:
> My understanding is that the pipe will be broken only, if the trace
> framework believes tracing is disabled. Recall the discussion about
> tracer_enabled = 0. Which is a bug, and I hoped Steven would have
> commented on how to fix that properly.
>
> Or was it fixed already, and this is a different issue?
> I didn't notice.

Actually there was two bugs which broke the pipe:
_ As you say the old one when none tracer put tracer_enabled = 0
_ And the new one I described here.

I think the first is fixed since none tracer has been replaced by "nop
tracer" (a recently implemented) which doesn't touch
tracer_enabled at all.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/