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Date: Sun, 5 Feb 2012 07:53:25 -0500 From: "Frank Ch. Eigler" <fche@...stic.org> To: Neil Horman <nhorman@...driver.com> Cc: Hagen Paul Pfeifer <hagen@...u.net>, Satoru Moriya <satoru.moriya@....com>, David Miller <davem@...emloft.net>, "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "tgraf@...radead.org" <tgraf@...radead.org>, "stephen.hemminger@...tta.com" <stephen.hemminger@...tta.com>, "eric.dumazet@...il.com" <eric.dumazet@...il.com>, Seiji Aguchi <seiji.aguchi@....com>, fche@...rceware.org Subject: Re: [PATCH v2 0/2] Tracepoint for tcp retransmission Hi - On Sat, Feb 04, 2012 at 03:09:37PM -0500, Neil Horman wrote: > [...] > Systemtap is fine for development. Lots of application/product > vendors really don't like it. On top of the difficult to use > aspect (Just curious, what difficulty-to-use aspect have you more recently come across?) > it requires that debugging stabs info be kept with the kernel, which > is a real pain, especially if you're running on a stable kernel. > [...] You probably mean when running on an unstable kernel, no? Installing debuginfo for a stable kernel is a one-time event. It also enables "perf probe" and crash(8) and other tools. Plus, with systemtap, there are two separate network-remoting mechanisms (--use-server compilation and --remote execution) that make local debuginfo unnecessary. Anyway, a reasonable way to go may be to prototype in stap whatever hard-coded kernel module y'all envision finally doing this work. - FChE -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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