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Bug 809917 - s390x strace problems with 31-bit executables
Summary: s390x strace problems with 31-bit executables
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: strace
Version: 6.2
Hardware: s390x
OS: Linux
low
medium
Target Milestone: rc
: ---
Assignee: Jeff Law
QA Contact: qe-baseos-tools-bugs
URL:
Whiteboard:
Depends On: 495935
Blocks: 840528 867021
TreeView+ depends on / blocked
 
Reported: 2012-04-04 16:32 UTC by Jeff Law
Modified: 2013-02-21 07:51 UTC (History)
14 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Previously, strace on s390x architecture couldn't handle the 31-bit binaries correctly. This has been fixed so that now there is a strace32 binary, which correctly handles 31-bit binaries even on s390x architecture.
Clone Of: 495935
: 867021 (view as bug list)
Environment:
Last Closed: 2013-02-21 07:51:22 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2013:0282 0 normal SHIPPED_LIVE strace bug fix and enhancement update 2013-02-20 20:36:56 UTC

Comment 7 Bill Nottingham 2012-10-15 20:38:58 UTC 
Ah, never mind - see it's built as a separate subpackage on the compat arch.

On RHEL 5, we have:
       <packagereq arch="ppc" type="mandatory">strace64</packagereq>
We could do the same for power & z on 6 and 7.

diff -u -u -r1.212 comps-rhel7.xml.in
--- comps-rhel7.xml.in  4 Oct 2012 20:14:33 -0000       1.212
+++ comps-rhel7.xml.in  15 Oct 2012 20:38:13 -0000
@@ -217,6 +217,8 @@
       <packagereq type="default">smartmontools</packagereq>
       <packagereq type="default">sos</packagereq>
       <packagereq type="default">strace</packagereq>
+      <packagereq type="default" arch="ppc64">strace32</packagereq>
+      <packagereq type="default" arch="s390x">strace32</packagereq>
       <packagereq type="default">subscription-manager</packagereq>
       <packagereq type="default">sysstat</packagereq>
       <packagereq type="default">systemtap-runtime</packagereq>
@@ -537,6 +539,8 @@
       <packagereq type="mandatory">latrace</packagereq>
       <packagereq type="mandatory">libreport-cli</packagereq>
       <packagereq type="mandatory">strace</packagereq>
+      <packagereq type="mandatory" arch="ppc64">strace32</packagereq>
+      <packagereq type="mandatory" arch="s390x">strace32</packagereq>
       <packagereq type="mandatory">systemtap-runtime</packagereq>
       <packagereq type="default">abrt-addon-ccpp</packagereq>
       <packagereq type="default">abrt-addon-python</packagereq>

as an example.
Comment 8 Michael Petlan 2013-01-18 12:41:10 UTC 
Hi,

I am creating a test plan for this Errata and it seems to me, that this bug and the "semtimedop" one ( https://bugzilla.redhat.com/show_bug.cgi?id=759566 ) are based on the same problem. Am I right? Can I test it the same way?

OLD = 4.5.19-1.11.el6_3.2
NEW = 4.5.19-1.17.el6

so I run the strace, both OLD and NEW on:

1) semtimedop_app compiled with "-m31" and both fails:

semtimedop(4393752297474, 0x3ff7fdcc1ca, 4393751543809, {...}) = -1 EAGAIN (Resource temporarily unavailable)

2) semtimedop_app compiled normally, 64bit and both are OK:

semtimedop(688130, {{0, -1, 0}}, 1, {0, 0}) = -1 EAGAIN (Resource temporarily unavailable)

-----

Then I run the strace32 (NEW, because OLD does not exist) on semtimedop_app compiled with "-m31" and it runs well:
semtimedop(851970, {{0, -1, 0}}, 1, {0, 0}) = -1 EAGAIN (Resource temporarily unavailable)

-----

So it seems to me, that the strace32 works well on 31 bit apps with semtimedop and also others syscalls and the 64bit strace does not, but it is planned and expectable. So I should test somehow that the strace32 is present in the update and decodes well the 31bit app with semtimedop call or whatever else and not to care about the "normal" strace and its compatibility with 31bit apps.

Is it like this?

Thanks.

Michael
Comment 15 errata-xmlrpc 2013-02-21 07:51:22 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.

http://rhn.redhat.com/errata/RHBA-2013-0282.html
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