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[Bug translator/9930] produce more information about probe reentrancy
- From: "jistone at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 8 Mar 2009 00:24:12 -0000
- Subject: [Bug translator/9930] produce more information about probe reentrancy
- References: <20090307172813.9930.fche@redhat.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From jistone at redhat dot com 2009-03-08 00:24 -------
(In reply to comment #3)
> Reentrance can occur in other ways too - from probed code reached
> from an NMI or from the runtime. So we still have to protect against
> it.
Agreed, we will always have those cases. We can make it better for probing
maskable interrupts though.
> We could make it more configurable -- to let a sysadmin/script writer
> state a preference between the status quo vs. blocked interrupts and
> associated greater latency, in order to have fewer skipped probes.
I like this suggestion.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=9930
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