** Changed in: linux (Ubuntu Trusty)
Status: In Progress => Invalid
** Changed in: linux (Ubuntu Utopic)
Status: In Progress => Fix Committed
** Changed in: linux (Ubuntu Vivid)
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1380432
Title:
24x7 counters: Bug in catalog_read()
Status in “linux” package in Ubuntu:
Fix Released
Status in “linux” source package in Trusty:
Invalid
Status in “linux” source package in Utopic:
Fix Committed
Status in “linux” source package in Vivid:
Fix Released
Bug description:
SRU Justification:
[Impact]
When using POWER8 in HV mode one cannot access
/sys/bus/event_source/devices/hv_24x7/interface/catalog
[Test Case]
cp /sys/bus/event_source/devices/hv_24x7/interface/catalog /tmp
ls -l /tmp/catalog
# this should show a file with a size > 0
[Fix]
56f12bee55d740dc47eed0ca9d5c72cffdffd6cf which is in 3.18-rc1
It is a clean cherry pick into 3.16/3.13.
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---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.
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