Re: Systemtap un Ubuntu 14.04

[Shane Wayne <zx0319 at gmail dot com>]

Hmm, it is odd.
If you install the wrong debug symbol package, you script can't pass
the version check in
 /usr/share/systemtap/runtime/sym.c
Have you ever changed the sources here?

2014-11-24 21:48 GMT+08:00 Wolfram Gettert <Wolfram.Gettert@mixed-mode.de>:
> Hi Shane,
> thanks for your answer. I installed a wrong debug symbol package. I downloaded the correct package and installed it. Now it's working.
>
> Wolfram
>
> -----UrsprÃngliche Nachricht-----
> Von: Shane Wayne [mailto:zx0319@gmail.com]
> Gesendet: Montag, 24. November 2014 07:03
> An: wolfram.gettert@mixed-mode.de
> Cc: systemtap@sourceware.org
> Betreff: Re: Systemtap un Ubuntu 14.04
>
> Hi Wolfram Gettert:
> I've tested you strace.stp in my system.
> My system was installed Ubuntu 14.04 server with standard kernel listed below:
> ii  linux-image-3.13.0-40-generic         3.13.0-40.69
> ii  linux-image-3.13.0-40-generic-dbgsym  3.13.0-40.69 And I also install SystemTap from apt-get:
> Systemtap translator/driver (version 2.3/0.158, Debian version
> 2.3-1ubuntu1 sty))
> Copyright (C) 2005-2013 Red Hat, Inc. and others This is free software; see the source for copying conditions.
> enabled features: AVAHI LIBSQLITE3 NSS TR1_UNORDERED_MAP NLS In my system I can run strace.stp from https://raw.githubusercontent.com/fche/systemtap/master/doc/tutorial/strace-open.stp
>
> sudo stap -v strace.stp
> Pass 1: parsed user script and 95 library script(s) using 84508virt/27192res8shr/25428data kb, in 160usr/10sys/174real ms.
> Pass 2: analyzed script: 3 probe(s), 9 function(s), 26 embed(s), 0 global(s)ng 280200virt/67268res/3756shr/63984data kb, in 1020usr/160sys/1193real ms.
> Pass 3: using cached
> /home/shane/.systemtap/cache/1f/stap_1f7e0f03ef5e1352bf4c51299552_20238.c
> Pass 4: using cached
> /home/shane/.systemtap/cache/1f/stap_1f7e0f03ef5e1352bf4c51299552_20238.ko
> Pass 5: starting run.
> collectl(1586) open ("/proc/buddyinfo", O_RDONLY)
> collectl(1586) open ("/proc/stat", O_RDONLY)
> collectl(1586) open ("/proc/interrupts", O_RDONLY)
> collectl(1586) open ("/proc/diskstats", O_RDONLY)
>
> Could you provide more information?
>
> 2014-11-24 2:58 GMT+08:00 Wolfram Gettert <wolfram.gettert@mixed-mode.de>:
>> Hi,
>> I am trying get Systemtap running on Ubuntu 14.04.
>>
>> I am using the standard kernel 3.13.0-32-generic.
>> I have installed these
>> http://ddebs.ubuntu.com/pool/main/l/linux-lts-trusty/linux-image-3.13.
>> 0-32-generic-dbgsym_3.13.0-32.57~precise1_amd64.ddeb
>> pac debug symbols.
>>
>> I tried two versions of systemtap.
>>
>> This one installed as Debian package:
>> stap --version
>> Systemtap translator/driver (version 2.3/0.158, Debian version
>> 2.3-1ubuntu1 (trusty))
>> Copyright (C) 2005-2013 Red Hat, Inc. and others This is free
>> software; see the source for copying conditions.
>> enabled features: AVAHI LIBSQLITE3 NSS TR1_UNORDERED_MAP NLS
>>
>> This one from git:
>> ./stap --version
>> Systemtap translator/driver (version 2.7/0.158, commit
>> release-2.6-93-g0cf3720fbd15 + changes) Copyright (C) 2005-2014 Red
>> Hat, Inc. and others This is free software; see the source for copying
>> conditions.
>> enabled features: TR1_UNORDERED_MAP NLS
>>
>>
>> I get the following error executing my probe listening for the open syscall.
>>
>> mm@xubuntu:~/systemtap-2.7-7159/bin$ sudo stap
>> ../../Downloads/correct/systemtap/strace-open.stp
>> semantic error: not accessible at this address [man error::dwarf]
>> (0xffffffff8121d060, dieoffset: 0x1d2106d): identifier '$filename' at
>> /usr/share/systemtap/tapset/linux/syscalls2.stp:128:32
>>         source:         filename = user_string_quoted($filename)
>>                                                       ^
>>
>> semantic error: not accessible at this address [man error::dwarf]
>> (0xffffffff8121d060, dieoffset: 0x1d2107d): identifier '$flags' at :129:10
>>         source:         flags = $flags
>>                                 ^
>>
>> semantic error: not accessible at this address [man error::dwarf]
>> (0xffffffff8121d060, dieoffset: 0x1d2106d): identifier '$filename' at
>> :132:54
>>         source:                 argstr = sprintf("%s, %s, %#o",
>> user_string_quoted($filename),
>>
>> ^
>>
>> semantic error: not accessible at this address [man error::dwarf]
>> (0xffffffff811c9000, dieoffset: 0x19574d4): identifier '$filename' at
>> :128:32
>>         source:         filename = user_string_quoted($filename)
>>                                                       ^
>>
>> semantic error: not accessible at this address [man error::dwarf]
>> (0xffffffff811c9000, dieoffset: 0x19574e4): identifier '$flags' at :129:10
>>         source:         flags = $flags
>>                                 ^
>>
>> semantic error: not accessible at this address [man error::dwarf]
>> (0xffffffff811c9000, dieoffset: 0x19574d4): identifier '$filename' at
>> :132:54
>>         source:                 argstr = sprintf("%s, %s, %#o",
>> user_string_quoted($filename),
>>
>> ^
>>
>> Pass 2: analysis failed.  [man error::pass2]
>> Tip: /usr/share/doc/systemtap/README.Debian should help you get started.
>>
>>
>> I add this as additional information. I read it in a formum post that
>> it may be usefull for you.
>>   stap -L 'kernel.function("vfs_write").*'
>> kernel.function("vfs_write@/build/buildd/linux-lts-trusty-3.13.0/fs/re
>> ad_write.c:457").call
>> kernel.function("vfs_write@/build/buildd/linux-lts-trusty-3.13.0/fs/re
>> ad_write.c:457").exported
>> kernel.function("vfs_write@/build/buildd/linux-lts-trusty-3.13.0/fs/re
>> ad_write.c:457").return
>> $return:ssize_t
>>
>>
>> The gcc I used is:
>> gcc --version
>> gcc (Ubuntu 4.8.2-19ubuntu1) 4.8.2
>> Copyright (C) 2013 Free Software Foundation, Inc.
>> This is free software; see the source for copying conditions.  There
>> is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
>>
>>
>> Do you have any idea what the reason could be?
>>
>>
>> Thanks for any hint.
>>
>> Wolfram
>>
>>
>>
>
>
>
> --
> ------------------------------------------------------------
> ZHANG Xiao
>
> The Institute of Computer Software Engineering and Theory in Xi'an Jiaotong University Master-and-Doctoral Program Student
>
> ACM Student Member
> CCF Student Member
> IEEE Computer Society Sister Society Associate Member
>
> Xi'an Jiaotong University
> Bachelor of Engineering in Computer Science and Technology
>
> The Chinese University of Hong Kong
> International Asia Study Program in CS/CE/EE/IE
>



-- 
------------------------------------------------------------
ZHANG Xiao

The Institute of Computer Software Engineering and Theory in Xi'an
Jiaotong University
Master-and-Doctoral Program Student

ACM Student Member
CCF Student Member
IEEE Computer Society Sister Society Associate Member

Xi'an Jiaotong University
Bachelor of Engineering in Computer Science and Technology

The Chinese University of Hong Kong
International Asia Study Program in CS/CE/EE/IE