[ ssic-linux-Bugs-2838006 ] Corrupt SHM_LOCK_DEST flag

Bugs item #2838006, was opened at 2009-08-14 22:43
Message generated for change (Settings changed) made by rogertsang
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Category: IPC
Group: default
Status: Open
>Resolution: Accepted
Priority: 5
Private: No
Submitted By: Roger Tsang (rogertsang)
Assigned to: Roger Tsang (rogertsang)
Summary: Corrupt SHM_LOCK_DEST flag

Initial Comment:
Reported by John Hughes.
http://article.gmane.org/gmane.linux.cluster.ssic.devel/6037

Current definition of SHM_LOCK_DEST flag is 023420 (octal)

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>Comment By: Roger Tsang (rogertsang)
Date: 2009-08-14 22:53

Message:
Further due to this flag the SHM node down code assumes shm_ids semaphore
is held, but in fact is not always the case and could race causing memory
corruption.

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