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lib/43581: Support for pthread(3) red zones
>Number: 43581
>Category: lib
>Synopsis: Support for pthread(3) red zones
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: lib-bug-people
>State: open
>Class: support
>Submitter-Id: net
>Arrival-Date: Wed Jul 07 15:40:00 +0000 2010
>Originator: Jukka Ruohonen
>Release: Irrelevant
>Organization:
-
>Environment:
>Description:
This is a support request for "red zones" or "guard pages" in the pthread(3)
implementation; see pthread_attr_getguardsize(3). To illustrate my (limited)
understanding of this:
----------------
| alignment... |
----------------
| thread attr |
----------------
| thread stack |
----------------
| red zone |
----------------
| alignment... |
----------------
Note that this "red zone" should be a separate area at the end of the thread
stack. (I believe there was a bug in the Linux NPTL implementation where the
zone was reserved within stack size allocation.)
But the possible implementor likely knows what this is about.
>How-To-Repeat:
Code inspection.
>Fix:
Implementation.
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