Red Hat Bugzilla – Bug 706095
iostat -n - values in output overflows
Last modified: 2011-07-21 06:42:33 EDT
Description of problem: iostat -n is used to display statistics for mounted NFS shares. When there are exactly 4 mounts mouted, some values (rops/s in this case) overflows. Version-Release number of selected component (if applicable): sysstat-7.0.2-6.el5.x86_64 How reproducible: always Steps to Reproduce: 1. mount exactly 4 NFS shares 2. run iostat -n Actual results: .qa.[root@x86-64-5s-m1 sysstat]# iostat -nkh Linux 2.6.18-238.9.1.el5xen (x86-64-5s-m1.ss.eng.bos.redhat.com) 05/19/2011 avg-cpu: %user %nice %system %iowait %steal %idle 0.25 0.00 0.00 0.00 0.00 99.75 Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn sda 0.00 0.00 0.00 0 0 sda1 0.00 0.00 0.00 0 0 sda2 0.00 0.00 0.00 0 0 sda3 0.00 0.00 0.00 0 0 Device: rkB_nor/s wkB_nor/s rkB_dir/s wkB_dir/s rkB_svr/s wkB_svr/s ops/s rops/s wops/s storage.bos.redhat.com:/vol/engineering/devarchive/redhat 3843068.96 18014398509481918.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 ntap-vader.corp.redhat.com:/vol/engarchive2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 ntap-vader.corp.redhat.com:/vol/engarchive 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 nest.test.redhat.com:/mnt/qa 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18446744069414586368.00 15103552107087759360.00 Expected results: no overflowed values Additional info:
Created attachment 499993 [details] proposed patch
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2011-1005.html