From: Oleg Nesterov <oleg@redhat.com>
To: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>,
Namhyung Kim <namhyung@kernel.org>,
"zhangwei(Jovi)" <jovi.zhangwei@huawei.com>,
Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
Steven Rostedt <rostedt@goodmis.org>,
linux-kernel@vger.kernel.org
Subject: Re: uprobe support mix of ftrace and perf
Date: Thu, 22 Nov 2018 15:32:10 +0100 [thread overview]
Message-ID: <20181122143209.GE28270@redhat.com> (raw)
In-Reply-To: <20181120220156.7d94d8c707570411870222fd@kernel.org>
Hi Masami,
On 11/20, Masami Hiramatsu wrote:
>
> Hello Oleg,
>
> I have a question about the (revert) commit 48212542067a
> ("tracing/uprobes: Revert "Support mix of ftrace and perf""). I found
> this limitation still exists on uprobe events.
Yes...
> Would you have any plan or idea to fix this issue? I thought this revert
> patch was a tentative one, and should be fixed afterwards.
To be honest, I was going to fix this "soon" many years ago, but today I simply
can't recall how this code actually works and what exactly we need to do to
support ftrace/perf at the same time...
I'll try to read this code later, but I can't promise anything :/
Oleg.
next prev parent reply other threads:[~2018-11-22 14:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-20 13:01 uprobe support mix of ftrace and perf Masami Hiramatsu
2018-11-22 14:32 ` Oleg Nesterov [this message]
2018-11-26 8:16 ` Masami Hiramatsu
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