Bug 1473722

Summary: Rebase Systemtap for 7.5
Product: Red Hat Enterprise Linux 7 Reporter: mbenitez
Component: systemtapAssignee: Frank Ch. Eigler <fche>
Status: CLOSED ERRATA QA Contact: Martin Cermak <mcermak>
Severity: high Docs Contact: Vladimír Slávik <vslavik>
Priority: unspecified    
Version: 7.5CC: bgollahe, bugproxy, fche, hannsj_uhl, jistone, lberk, mcermak, mjw, mnewsome, pasik, tumeya, vslavik
Target Milestone: rcKeywords: Rebase
Target Release: 7.5   
Hardware: All   
OS: Linux   
Fixed In Version: systemtap-3.2-1.el7 Doc Type: Rebase: Bug Fixes and Enhancements
Doc Text:
_systemtap_ rebased to version 3.2 The *SystemTap* utility has been updated to upstream version 3.2. Notable enhancements include: * Support for extraction of matched regular expression has been added. * Probe aliases for accepting input from the standard input have been added. * Translator diagnostics have been improved. * Support for the new `statx` system call has been added. * A new string function `strpos()` for detecting substring position has been added to the stap language. Additionally, this update fixes the following bugs: * Previously, the statistics extractor functions `@min()` and `@max()` returned incorrect values. As a consequence, scripts relying on these functions did not work properly. The `@min()` and `@max()` functions have been fixed to return the correct maximum and minimum values. As a result, the affected scripts now work as expected. * Previously, some kernel tracepoints were inconsistently listed with the `stap -L` command, even when they could not be probed. *SystemTap* has been fixed so that the listed and probe-able tracepoint sets match again. * The `netdev.receive` probe has been fixed and can collect data again. * The example script `nettop.stp` affected by the broken `netdev.receive` probe again works as expected. Note that the kernel version in Red Hat Enterprise Linux does not support extended Berkeley Packet Filter (eBPF), and consequently the related upstream *SystemTap* features are not available.
Story Points: ---
Clone Of:
: 1496221 (view as bug list) Environment:
Last Closed: 2018-04-10 16:32:40 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On:    
Bug Blocks: 1393024, 1425142, 1471969, 1485496, 1522983    

Description mbenitez 2017-07-21 13:47:31 UTC

Comment 17 John Jarvis 2018-01-10 14:20:23 UTC
*** Bug 1520995 has been marked as a duplicate of this bug. ***

Comment 18 IBM Bug Proxy 2018-02-12 08:51:32 UTC
------- Comment From shriykul.com 2018-02-12 03:42 EDT-------
Verified on Pegas 1.1 Snap 2:

uname -r : 4.14.0-39.el7a.ppc64le
Machine : Boston + DD2.2

Testing :

[root@ltc-boston122 ~]# readelf -n /lib64/libc.so.6 | grep memory_mallopt_mmap_threshold -A2 -B2
stapsdt              0x00000051	NT_STAPSDT (SystemTap probe descriptors)
Provider: libc
Name: memory_mallopt_mmap_threshold
Location: 0x000000000009bbf0, Base: 0x00000000001a1010, Semaphore: 0x0000000000000000
Arguments: -4@30 8@0(9) -4@0(10)
[root@ltc-boston122 ~]# readelf -n /lib64/libc.so.6 | grep memory_mallopt_mmap_max -A2 -B2
stapsdt              0x0000004b	NT_STAPSDT (SystemTap probe descriptors)
Provider: libc
Name: memory_mallopt_mmap_max
Location: 0x000000000009bcc0, Base: 0x00000000001a1010, Semaphore: 0x0000000000000000
Arguments: -4@30 -4@0(7) -4@0(8)

Able to see the enteries in the format :

N@OP where
N maybe any one of -1, -2, -4, -8, 1, 2, 4, 8
OP maybe in any one of the following formats
iNUM or i-NUM
REG or %rREG
NUM(REG) or -NUM(REG) or NUM(%rREG) or -NUM(%rREG)
where NUM is any numeric constant and REG is a register
index (0 to 31).

[root@ltc-boston122 ~]# readelf -n /lib64/libc-2.17.so | grep "Arguments: "
Arguments: 8@31 -4@i1 -4@i0
Arguments: 8@31 -4@i1 -4@i0
Arguments: 8@31 -4@i1 -4@i0
Arguments: 8@31 -4@i1 -4@i0
Arguments: 8@28 -4@i1 -4@i0
Arguments: 8@27 -4@i1 -4@i0
Arguments: 8@23 -4@i1 -4@i0
Arguments: 8@23 -4@i1 -4@i0
Arguments: 8@23 -4@i1 -4@i0
Arguments: 8@23 -4@i1 -4@i0
Arguments: 8@29 -4@i1 -4@i0
Arguments: 8@31 -4@i1 -4@i0
Arguments: 8@31 -4@i1 -4@i0
Arguments: 8@25 -4@i1 -4@i0
Arguments: 8@25 -4@i1 -4@i0
Arguments: 8@25 -4@i1 -4@i0
Arguments: 8@27 -4@i1 -4@i0
Arguments: 8@31 -4@i1 -4@i0
Arguments: 8@31 -4@i1 -4@i0
Arguments: 8@31 -4@i1 -4@i0
Arguments: 8@31 -4@i1 -4@i0
Arguments: 8@31 -4@i1 -4@i0
Arguments: 8@31 -4@i1 -4@i0
Arguments: 8@31 -4@i1 -4@i0

Comment 19 Martin Cermak 2018-02-16 14:11:05 UTC
Finished testing systemtap-3.2-4.el7.

Comment 22 errata-xmlrpc 2018-04-10 16:32:40 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.