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Bug #38259 SHM can not be removed.
Submitted: 2006-07-30 06:48 UTC Modified: 2006-07-30 10:16 UTC
From: aeolianmeson at blitzeclipse dot com Assigned:
Status: Not a bug Package: Semaphore related
PHP Version: 5.1.4 OS: Fedora 4
Private report: No CVE-ID: None
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From: aeolianmeson at blitzeclipse dot com
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PHP Version: OS:


 [2006-07-30 06:48 UTC] aeolianmeson at blitzeclipse dot com
The SHM id returned by shm_attach will produce an error when used with shm_remove ("PHP Warning:  shm_remove(): The parameter is not a valid shm_identifier in /clustershare/cluster/shm.php on line 15
"). It CAN be used to detach, though.

Reproduce code:
// The key used was returned from a call to ftok(), but was placed here staticly for testing.

$id = shm_attach(1360651186, 20000);

Expected result:
No error message.

Actual result:
Produces only the specified error message.


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 [2006-07-30 10:16 UTC]
Because you cannot remove SHM segment if it's detached.
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