Bug 594079 - systemtap cannot probe 'scsi.ioentry'
Summary: systemtap cannot probe 'scsi.ioentry'
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: systemtap
Version: 6.0
Hardware: All
OS: Linux
medium
high
Target Milestone: rc
: ---
Assignee: Frank Ch. Eigler
QA Contact: Petr Muller
URL:
Whiteboard:
Keywords:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-05-20 14:00 UTC by Jeff Bastian
Modified: 2018-10-27 15:19 UTC (History)
5 users (show)

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Clone Of:
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Last Closed: 2010-07-02 19:54:28 UTC

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Description Jeff Bastian 2010-05-20 14:00:09 UTC 
Description of problem:
The scsi.ioentry event never fires on RHEL 6.0.

Version-Release number of selected component (if applicable):
kernel-2.6.32-25.el6.x86_64
systemtap-1.2-1.el6.x86_64

How reproducible:
every time

Steps to Reproduce:
1. stap -e 'probe scsi.ioentry { print("scsi.ioentry fired\n") }'
2. hurry up and wait
  
Actual results:
it never prints any "scsi.ioentry fired" messages

Expected results:
it should print "scsi.ioentry fired" fairly often and rapidly

Additional info:
This works fine on RHEL 5.5
Comment 2 Frank Ch. Eigler 2010-05-21 17:34:43 UTC 
upstream systemtap commit #6fa8e03 appears to correct this; ready for backporting.
Comment 6 releng-rhel@redhat.com 2010-07-02 19:54:28 UTC 
Red Hat Enterprise Linux Beta 2 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.
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