From: "Frank Ch. Eigler" <fche@redhat.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: "Török Edwin" <edwintorok@gmail.com>,
mingo@elte.hu, srostedt@redhat.com, sandmann@daimi.au.dk,
linux-kernel@vger.kernel.org, viro@ZenIV.linux.org.uk
Subject: Re: [PATCH 2/2] tracing: identify which executable object the userspace address belongs to
Date: Thu, 27 Nov 2008 07:48:51 -0500 [thread overview]
Message-ID: <20081127124851.GC23480@redhat.com> (raw)
In-Reply-To: <1227782505.4454.1393.camel@twins>
Hi -
On Thu, Nov 27, 2008 at 11:41:45AM +0100, Peter Zijlstra wrote:
> > > Impact: modify+improve the userstacktrace tracing visualization feature
> > > [...]
> > > You'll see stack entries like:
> > > /lib/libpthread-2.7.so[+0xd370]
> > > [...]
> >
> > Can you suggest an actual distribution & architecture where this
> > facility may be tested/used? It appears to require frame-pointer
> > stuff that AFAIK is not generally turned on for user-space.
>
> gentoo, just rebuild world with frame pointers ;-)
Well, that only goes so far. If this feature turns out unable to work
without distributors recompiling all their stuff on, for example, x86-64,
then expectations need to be reset.
- FChE
next prev parent reply other threads:[~2008-11-27 12:49 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-22 11:28 [PATCH 0/2] tracing: userspace stacktraces Török Edwin
2008-11-22 11:28 ` [PATCH 1/2] tracing: add support for userspace stacktraces in tracing/iter_ctrl Török Edwin
2008-11-23 8:37 ` Ingo Molnar
2008-11-23 10:39 ` [PATCH 3/3] tracing/stack-tracer: introduce CONFIG_USER_STACKTRACE_SUPPORT Török Edwin
2008-11-22 11:28 ` [PATCH 2/2] tracing: identify which executable object the userspace address belongs to Török Edwin
2008-11-23 8:47 ` [PATCH] vfs, seqfile: make mangle_path() global Ingo Molnar
2008-11-23 21:06 ` Randy Dunlap
2008-11-23 21:24 ` [PATCH] fix comment style on mangle_path Török Edwin
2008-11-23 21:36 ` Ingo Molnar
2008-11-28 10:05 ` [PATCH] vfs, seqfile: make mangle_path() global Al Viro
2008-11-28 17:08 ` Ingo Molnar
2008-11-23 8:53 ` [PATCH 2/2] tracing: identify which executable object the userspace address belongs to Ingo Molnar
2008-11-23 10:39 ` [PATCH 1/3] tracing/stack-tracer: fix style issues Török Edwin
2008-11-23 10:39 ` [PATCH 2/3] tracing/stack-tracer: fix locking Török Edwin
2008-11-23 10:52 ` Ingo Molnar
2008-11-23 10:59 ` Török Edwin
2008-11-23 11:01 ` Ingo Molnar
2008-11-23 11:04 ` Török Edwin
2008-11-23 11:07 ` Ingo Molnar
2008-11-23 11:08 ` [PATCH] tracing/stack-tracer: avoid races accessing file Török Edwin
2008-11-23 11:20 ` Ingo Molnar
2008-11-25 14:40 ` [PATCH 2/2] tracing: identify which executable object the userspace address belongs to Frank Ch. Eigler
2008-11-26 9:59 ` Török Edwin
2008-11-27 10:41 ` Peter Zijlstra
2008-11-27 12:48 ` Frank Ch. Eigler [this message]
2008-11-27 13:02 ` Peter Zijlstra
2008-11-27 13:03 ` Török Edwin
2008-11-27 14:10 ` Ingo Molnar
2008-11-27 14:27 ` Török Edwin
2008-11-27 14:51 ` Ingo Molnar
2008-12-09 19:49 ` Török Edwin
2008-11-23 8:26 ` [PATCH 0/2] tracing: userspace stacktraces Ingo Molnar
2008-11-23 9:24 ` Török Edwin
2008-11-23 9:30 ` Ingo Molnar
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