From: "jidong xiao" <jidong.xiao@gmail.com>
To: "Jun Koi" <junkoi2004@gmail.com>
Cc: "Satoshi OSHIMA" <satoshi.oshima.fk@hitachi.com>,
systemtap@sourceware.org, "\"平松@RedHat\"" <mhiramat@redhat.com>,
橋本K <hisashi.hashimoto.wh@hitachi.com>,
"Yumiko SUGITA" <yumiko.sugita.yf@hitachi.com>
Subject: Re: Discussion at Linux Foundation Japan Symposium
Date: Thu, 18 Dec 2008 09:21:00 -0000 [thread overview]
Message-ID: <4104961b0812180106n69d1e25ej269d36f39b5426b@mail.gmail.com> (raw)
In-Reply-To: <fdaac4d50812180057q35b2303djc12dc06ff470bec2@mail.gmail.com>
On Thu, Dec 18, 2008 at 4:57 PM, Jun Koi <junkoi2004@gmail.com> wrote:
> On Thu, Dec 18, 2008 at 5:09 PM, Satoshi OSHIMA
> <satoshi.oshima.fk@hitachi.com> wrote:
>> Hi all,
>>
>> Long time no see and sorry for my late report.
>>
>> I attended 9th Linux Foundation Japan Symposium and
>> discussed on issues of systemtap project with Ted Ts'o,
>> James Bottomley and Jonathan Corbet.
>>
>> In my understanding, they demand the following things:
>>
>> (1) Follow upstream first
>>
>> Utrace and uprobe features are currently available only
>> on Fedora and Red Hat Enterprise Linux, since those
>> patches are not merged into upstream kernel yet.
>>
>> my suggestion:
>>
>> To reduce complaints of upstream kernel developers,
>> systemtap project may need to postpone adding new
>> uprobe features until getting utrace (and uprobe)
>> patch set accepted in mainline.
>>
>>
>> (2) Maintain tapset
>>
>> Systemtap users (including kernel developers) get
>> frustrated because tapsets often do not work on
>> the latest kernel. Moreover, sometimes users
>> have to fix the tapset incompatibility of kernels.
>>
>> my suggestion:
>>
>> If systemtap procjet can fix this kind of incompatibilities
>> within a few hours or days as Myths about systemtap
>> on the wiki claims, releasing new systemtap minor release
>> tarball for each upstream kernel release would help users.
>>
>>
>> (3) Make no debuginfo version
>>
>> Systemtap always requires kernel debuginfo to use.
>> Unfortunately, it is hard for users of some distributions
>> to have debuginfo.
>>
>
> How is it possible to do that without kernel debug info? Currently
> systemtap extracts lots of information on kernel layout from debug
> info, so I dont understand why we can survive without that.
>
> Thanks,
> Jun
>
But not every distribution contains kernel debuginfo packages,
therefore this makes many people not easy to use systemtap.
Regards
Jason
next prev parent reply other threads:[~2008-12-18 9:07 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-18 8:33 Satoshi OSHIMA
2008-12-18 8:59 ` KOSAKI Motohiro
2008-12-18 9:07 ` Jun Koi
2008-12-18 9:21 ` jidong xiao [this message]
2008-12-18 9:28 ` Jun Koi
2008-12-18 9:35 ` KOSAKI Motohiro
2008-12-18 9:37 ` Jun Koi
2008-12-18 9:42 ` Jun Koi
2008-12-18 9:46 ` KOSAKI Motohiro
2008-12-18 9:58 ` K.Prasad
2008-12-18 10:02 ` KOSAKI Motohiro
2008-12-18 10:21 ` K.Prasad
2008-12-18 15:52 ` Masami Hiramatsu
2008-12-18 15:41 ` Masami Hiramatsu
2008-12-18 17:11 ` Frank Ch. Eigler
2008-12-19 0:08 ` KOSAKI Motohiro
2008-12-19 0:58 ` Frank Ch. Eigler
2008-12-19 1:39 ` KOSAKI Motohiro
2008-12-19 23:51 ` William Cohen
2008-12-20 1:51 ` Richard J Moore
2008-12-20 14:27 ` Masami Hiramatsu
2008-12-19 0:45 ` Masami Hiramatsu
2008-12-22 18:22 Frank Ch. Eigler
2008-12-22 20:38 ` Theodore Tso
2008-12-22 22:41 ` Frank Ch. Eigler
2008-12-23 0:33 ` Theodore Tso
2008-12-23 0:34 ` Masami Hiramatsu
2008-12-23 0:44 ` Theodore Tso
2008-12-23 21:13 ` Roland McGrath
2008-12-23 22:13 ` Masami Hiramatsu
2008-12-23 14:28 ` Frank Ch. Eigler
2008-12-23 22:21 ` Roland McGrath
2008-12-23 22:33 ` Masami Hiramatsu
2008-12-23 22:44 ` Roland McGrath
2008-12-24 3:40 ` Masami Hiramatsu
2008-12-24 8:48 ` Roland McGrath
2008-12-24 18:14 ` Masami Hiramatsu
2008-12-24 19:26 ` Roland McGrath
2008-12-24 21:02 ` Theodore Tso
2008-12-26 18:17 ` Roland McGrath
2008-12-23 23:27 ` Theodore Tso
2008-12-24 6:11 ` Masami Hiramatsu
2009-01-10 2:48 ` Theodore Tso
2009-01-11 16:29 ` Frank Ch. Eigler
2009-01-12 18:18 ` Masami Hiramatsu
2009-01-12 18:53 ` Frank Ch. Eigler
2009-01-12 19:29 ` Masami Hiramatsu
2009-01-12 19:26 ` Theodore Tso
2009-01-12 20:01 ` Frank Ch. Eigler
2009-01-12 19:05 ` Jason Baron
2009-01-12 19:52 ` Theodore Tso
2009-01-12 20:32 ` Frank Ch. Eigler
2009-01-08 9:22 ` Roland McGrath
2009-01-10 1:33 ` Theodore Tso
2008-12-22 23:34 ` Masami Hiramatsu
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