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Bug 1160837 - systemtap.examples/io/iostat-scsi issue
Summary: systemtap.examples/io/iostat-scsi issue
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: systemtap
Version: 7.1
Hardware: Unspecified
OS: Linux
low
low
Target Milestone: rc
: ---
Assignee: Frank Ch. Eigler
QA Contact: Martin Cermak
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-11-05 18:46 UTC by Martin Cermak
Modified: 2016-02-26 14:19 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-11-19 11:46:42 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
stap-report output (10.54 KB, application/x-xz)
2014-11-05 18:46 UTC, Martin Cermak 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHEA-2015:2124 0 normal SHIPPED_LIVE systemtap bug fix and enhancement update 2015-11-19 10:31:06 UTC

Description Martin Cermak 2014-11-05 18:46:42 UTC 
Created attachment 954133 [details]
stap-report output

The systemtap.examples/io/iostat-scsi probably needs either fix or at least test_support: update:


 7.0 S x86_64 # stap -g iostat-scsi.stp 1 -c "sleep 1"
semantic error: while resolving probe point: identifier 'kernel' at iostat-scsi.stp:37:50
        source: probe module("sd_mod").function("sd_prep_fn") !, kernel.function("sd_prep_fn") {
                                                                 ^

semantic error: no match (similar functions: scsi_prep_fn, hp_sw_prep_fn, alua_prep_fn, rdac_prep_fn, k_fn)

semantic error: while resolving probe point: identifier 'module' at :37:7
        source: probe module("sd_mod").function("sd_prep_fn") !, kernel.function("sd_prep_fn") {
                      ^

semantic error: no match (similar functions: sd_prot_op, sd_rescan, sd_dif_ip_fn, sd_open, sd_probe)

Pass 2: analysis failed.  [man error::pass2]
 7.0 S x86_64 # 


Similar error on other arches too.



 7.0 S x86_64 # grep ^test_support iostat-scsi.meta
test_support: stap -l 'module("st").function("st_do_scsi")!,kernel.function("st_do_scsi")'
 7.0 S x86_64 #
Comment 1 David Smith 2014-11-06 20:52:33 UTC 
Fixed with upstream commit 6fb025a:

<https://sourceware.org/git/gitweb.cgi?p=systemtap.git;a=commit;h=6fb025aaaa355a8d93dc1ea720007a22665c7659>

====
Fixed BZ1160837 by updating the iostat-scsi.stp example.

* testsuite/systemtap.examples/io/iostat-scsi.stp: Updated for newer
  kernels like RHEL7 and rawhide. Probes the "sd_init_command" kernel
  function which replaced "sd_prep_fn" in newer kernels. Added whitespace
  for more clarity.
====

Tested under RHEL6 (x86_64, ppc64, s390x), RHEL7 (x86_64, ppc64, s390x), and rawhide (x86_64).

The problem was that the upstream kernel had renamed the 'sd_prep_fn()' to 'sd_init_command()'. Also worked around an issue with missing parameter debuginfo on an inlined function on ppc64.
Comment 3 David Smith 2015-06-22 20:45:17 UTC 
This appears to be fixed in systemtap 2.8.
Comment 8 errata-xmlrpc 2015-11-19 11:46:42 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHEA-2015-2124.html
Comment 9 BugMasta 2016-02-26 01:50:30 UTC 
IS THERE ANY PARTICULAR REASON WHY SYSTEMTAP 2.8 WITH FIX FOR THIS BUG HAS NOT BEEN RELEASED FOR EL6???????


I AM EFFING SICK OF THIS
PEOPLE DON'T GIVE A GODDAMN.
Comment 10 Frank Ch. Eigler 2016-02-26 05:21:08 UTC 
(In reply to BugMasta from comment #9)
> IS THERE ANY PARTICULAR REASON WHY SYSTEMTAP 2.8 WITH FIX FOR THIS BUG HAS
> NOT BEEN RELEASED FOR EL6???????

It will be in RHEL6.8.
Comment 11 mbenitez 2016-02-26 14:19:49 UTC 
(In reply to BugMasta from comment #9)
> IS THERE ANY PARTICULAR REASON WHY SYSTEMTAP 2.8 WITH FIX FOR THIS BUG HAS
> NOT BEEN RELEASED FOR EL6???????
> 
> 
> I AM EFFING SICK OF THIS
> PEOPLE DON'T GIVE A GODDAMN.

Please be aware that every RHEL has a different release cycle. This bug was timely fixed for the release it was scheduled for [RHEL 7].

If you are a customer your sales or support account representative can help you open a customer case an escalate the issue for a faster turn around for high priority / critical issues.
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