Bug 875077
| Summary: | vmstat crashing on s390x | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Martin Kyral <mkyral> | ||||
| Component: | procps | Assignee: | Jaromír Cápík <jcapik> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Martin Kyral <mkyral> | ||||
| Severity: | unspecified | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 6.4 | CC: | albert, ovasik, rvokal | ||||
| Target Milestone: | rc | ||||||
| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | procps-3.2.8-25.el6 | Doc Type: | Bug Fix | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2012-11-15 13:41:05 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: | |||||
| Embargoed: | |||||||
| Bug Depends On: | |||||||
| Bug Blocks: | 881827 | ||||||
| Attachments: |
|
||||||
Issue found during errata testing. It is present in procps-3.2.8-23.el6 (current released version) too. core dump analysis:
Core was generated by `vmstat 1'.
Program terminated with signal 8, Arithmetic exception.
#0 0x0000000080003290 in new_format (argc=<value optimized out>, argv=<value optimized out>)
at /usr/include/bits/stdio2.h:105
warning: Source file is more recent than executable.
105 return __printf_chk (__USE_FORTIFY_LEVEL - 1, __fmt, __va_arg_pack ());
(gdb) i th
* 1 Thread 27615 0x0000000080003290 in new_format (argc=<value optimized out>, argv=<value optimized out>)
at /usr/include/bits/stdio2.h:105
(gdb) t a a bt
Thread 1 (Thread 27615):
#0 0x0000000080003290 in new_format (argc=<value optimized out>, argv=<value optimized out>)
at /usr/include/bits/stdio2.h:105
#1 main (argc=<value optimized out>, argv=<value optimized out>) at vmstat.c:726
The problem is caused by the platform/kernel. The sum of all ticks (user+system+idle+io+stl) is zero. That for sure distorts the stats. I can make vmstat more robust for cases like that. 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-2012-1463.html |
Created attachment 641529 [details] core dump of 'vmstat 1' on s390x Description of problem: On s390x boxes, vmstat is crashing with "Floating point exception": [root@ibm-z10-29 ~]# vmstat 1 procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st 0 0 0 106892 32752 647648 0 0 73 71 0 118 3 2 0 0 96 Floating point exception (core dumped) [root@ibm-z10-29 ~]# echo $? 136 Version-Release number of selected component (if applicable): procps-3.2.8-24.el6 How reproducible: Always Steps to Reproduce: 1. vmstat 1 Actual results: vmstat crashes after printing several lines of output (one or two in most cases) Expected results: vmstat produces output at given rate until user terminates it Additional info: Other supported platforms are not affected. Core dump attached.