Bug 9820 - discontiguous cpu-mapping support
Summary: discontiguous cpu-mapping support
Status: RESOLVED DUPLICATE of bug 19241
Alias: None
Product: systemtap
Classification: Unclassified
Component: runtime (show other bugs)
Version: unspecified
: P2 normal
Target Milestone: ---
Assignee: Unassigned
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2009-02-04 18:31 UTC by Masami Hiramatsu
Modified: 2015-11-27 21:55 UTC (History)
1 user (show)

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Description Masami Hiramatsu 2009-02-04 18:31:02 UTC 
When using cpu-hotplug, cpus are not mapped continuously(this means it is
possible that only cpu0 and cpu3 exist on the system).
For example, 
# echo 0 > /sys/devices/system/cpu/cpu1/online 
(offline 1-3)
# echo 1 > /sys/devices/system/cpu/cpu3/online 
(online 3 again)
makes only cpu0 and cpu3 online.

systemtap module already supported this situation.

# ls /sys/kernel/debug/systemtap/stap_4b2957991db0f88f66cd013b330b963f_173/
dropped  trace0  trace3

However, stapio doesn't.
Comment 1 Frank Ch. Eigler 2015-11-27 21:55:55 UTC 
solved

*** This bug has been marked as a duplicate of bug 19241 ***