* [Bug runtime/9820] New: discontiguous cpu-mapping support
@ 2009-02-04 19:09 mhiramat at redhat dot com
0 siblings, 0 replies; only message in thread
From: mhiramat at redhat dot com @ 2009-02-04 19:09 UTC (permalink / raw)
To: systemtap
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.
--
Summary: discontiguous cpu-mapping support
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: runtime
AssignedTo: systemtap at sources dot redhat dot com
ReportedBy: mhiramat at redhat dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=9820
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2009-02-04 19:09 [Bug runtime/9820] New: discontiguous cpu-mapping support mhiramat at redhat dot com
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