From: Christoph Hellwig <hch@infradead.org>
To: Stefan Hajnoczi <stefanha@gmail.com>
Cc: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
Jan Kiszka <jan.kiszka@siemens.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
Prerna Saxena <prerna@linux.vnet.ibm.com>
Subject: Re: [Qemu-devel] [PATCH 1/2] trace: Add simple tracing support
Date: Fri, 21 May 2010 17:26:25 -0400 [thread overview]
Message-ID: <20100521212625.GA21652@infradead.org> (raw)
In-Reply-To: <AANLkTinEIfZyMIQCpxMQdiv7A7r-vNDlPwU9uojCx3Ut@mail.gmail.com>
On Fri, May 21, 2010 at 09:49:56PM +0100, Stefan Hajnoczi wrote:
> http://sourceware.org/systemtap/wiki/AddingUserSpaceProbingToApps
>
> Requires kernel support - not sure if enough of utrace is in mainline
> for this to work out-of-the-box across distros.
Nothing of utrace is in mainline, nevermind the whole systemtap code
which is intentionally keep out of the kernel tree. Using this means
that for every probe in userspace code you need to keep the configured
source tree of the currently running kernel around, which is completely
unusable for typical developer setups.
next prev parent reply other threads:[~2010-05-21 21:26 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-21 9:42 [Qemu-devel] [RFC 0/2] Tracing Stefan Hajnoczi
2010-05-21 9:42 ` [Qemu-devel] [PATCH 1/2] trace: Add simple tracing support Stefan Hajnoczi
2010-05-21 9:49 ` [Qemu-devel] " Stefan Hajnoczi
2010-05-21 11:13 ` Jan Kiszka
2010-05-21 13:10 ` Stefan Hajnoczi
2010-05-21 13:22 ` Jan Kiszka
2010-05-21 12:37 ` [Qemu-devel] " Anthony Liguori
2010-05-21 13:46 ` Jan Kiszka
2010-05-21 14:03 ` Anthony Liguori
2010-05-21 16:52 ` Jan Kiszka
2010-05-21 20:49 ` Stefan Hajnoczi
2010-05-21 21:26 ` Christoph Hellwig [this message]
2010-05-21 21:37 ` Jan Kiszka
2010-05-21 21:06 ` Anthony Liguori
2010-05-21 21:41 ` Jan Kiszka
2010-05-21 21:58 ` Anthony Liguori
2010-05-21 9:42 ` [Qemu-devel] [PATCH 2/2] trace: Trace write requests in virtio-blk, multiwrite, and paio_submit Stefan Hajnoczi
2010-05-21 11:27 ` [Qemu-devel] [RFC 0/2] Tracing Prerna Saxena
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