Bug #16820 Updated: hangs in multithreded environment (ZTS)

From: Date: Sun, 16 Jun 2002 04:11:30 +0000
Subject: Bug #16820 Updated: hangs in multithreded environment (ZTS)
References: 1  Groups: php.bugs 
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 ID:               16820
 Updated by:       sniper@php.net
 Reported By:      wmeler@wp-sa.pl
 Status:           Open
-Bug Type:         Reproducible crash
+Bug Type:         Scripting Engine problem
 Operating System: linux
 PHP Version:      4.2.0
 New Comment:

reclassified


Previous Comments:
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[2002-04-25 06:24:51] wmeler@wp-sa.pl

If you have bad luck and get termination signal (after exceding
max_execution_time limit) in some critical section
locks won't be released !!! (because of usage of longjmp function in
zend_bailout)

eg. when signal come when process is executing malloc in ealloc
(Zend/zend_alloc.c) function it won't release internal
lock, and shutdown functions that free memory will hang as well as
other threads.

You probably can prevent it with HANDLE_BLOCK_INTERRUPTIONS macro, but
it isn't good solution.
I suggest that zend_timeout function should set EG(timed_out) flag, as
it is done in windows environment. Flag should be checked in execute
function (Zend/zend_execute.c) in main loop.

waiting for your patch (my is working, but is ugly coded;-)),
Wojtek


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