56f12bee55d740dc47eed0ca9d5c72cffdffd6cf powerpc/perf/hv-24x7: Simplify
catalog_read()
** Also affects: linux (Ubuntu Utopic)
Importance: Undecided
Assignee: Taco Screen team (taco-screen-team)
Status: Confirmed
** Changed in: linux (Ubuntu Utopic)
Status: Confirmed => In Progress
** Changed in: linux (Ubuntu Utopic)
Assignee: Taco Screen team (taco-screen-team) => Tim Gardner (timg-tpi)
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https://bugs.launchpad.net/bugs/1380432
Title:
24x7 counters: Bug in catalog_read()
Status in “linux” package in Ubuntu:
In Progress
Status in “linux” source package in Utopic:
In Progress
Bug description:
---Problem Description---
24x7 counters: Bug in catalog_read()
---Additional Hardware Info---
Power8 system with support for 24x7 counters
Machine Type = Power8 IBM,9119-MME
---Steps to Reproduce---
cp /sys/bus/event_source/devices/hv_24x7/interface/catalog /tmp
ls -l /tmp/catalog
Shows a file size 0 for the /tmp/catalog.
We recently discovered a bug in the upstream Linux kernel. It was
fixed by this patch
https://lkml.org/lkml/2014/10/1/35
and that patch is scheduled to be included in powerpc tree.
When it is included, we should back port to Ubuntu 14.10 or next
release.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1380432/+subscriptions
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