Hide Forgot
Description of problem: glibtop_get_sysinfo() reports the wrong number of CPUs. On a test machine which has 8x Intel Xeon E7-8870 physical CPUs, each one of them with 10 cores and 20 threads, the ncpus field of the returned glibtop_sysinfo structure is set to 20, which does not reflect either the physical CPUs (8), nor the actual available cores (160). Version-Release number of selected component (if applicable): libgtop2-2.28.0-3.el6 How reproducible: Always.
This request was evaluated by Red Hat Product Management for inclusion in the current release of Red Hat Enterprise Linux. Because the affected component is not scheduled to be updated in the current release, Red Hat is unfortunately unable to address this request at this time. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux. If you would like it considered as an exception in the current release, please ask your support representative.
In order to solve that issue I did the following in the SPEC file before launching make: perl -pi -e 's/char buffer \[BUFSIZ\]/char buffer [10*BUFSIZ]/' sysdeps/linux/cpu.c perl -pi -e 's/char buffer \[BUFSIZ\]/char buffer [10*BUFSIZ]/' sysdeps/linux/open.c perl -pi -e 's/char buffer \[16384\]/char buffer [40*16384]/' sysdeps/linux/sysinfo.c perl -pi -e 's/#define GLIBTOP_NCPU\s*256/#define GLIBTOP_NCPU 512/' ./include/glibtop/cpu.h Also linked to upstream issue: https://bugzilla.gnome.org/show_bug.cgi?id=323354 That build modification has been tested successfully on a 480 threads system.
Also in link with: https://bugzilla.redhat.com/show_bug.cgi?id=1013848 https://bugzilla.redhat.com/show_bug.cgi?id=1082123
A more complete fix is required, which includes bumping the soversion of the library. Additionally, several reverse dependencies will need to be rebuilt (such as gnome-system-monitor and gnome-applets). This is roughly what was done for RHEL 7 in bug 1082123. This bug report seems to completely overlap with 1013848 (for RHEL 6), which explains that the packages which need to be rebuilt are not on the list of packages to get updated for RHEL 6.7. Closing this bug as a duplicate of the newer bug, as it has more information. *** This bug has been marked as a duplicate of bug 1013848 ***