Windows Apache often stuck to the solution idea

Windows Apache is often stuck in the dead
Regular card-dead. What's going on, has anyone ever met?
Error log

[Sun Feb 03 18:16:09 2013] [Notice] Child 4200:all worker threads has exited.
[Sun Feb 03 18:16:15 2013] [Notice] Child 4200:child process is exiting
[Sun Feb 03 18:18:35 2013] [Notice] parent:received shutdown signal--shutting down the server.
[Sun Feb 03 18:18:35 2013] [Notice] Child 4056:exit event signaled. Child process is ending.
[Sun Feb 03 18:18:36 2013] [Notice] Child 4056:released the start mutex
[Sun Feb 03 18:19:05 2013] [Notice] parent:forcing termination of child process 1f4
[Sun Feb 03 18:19:18 2013] [Notice] apache/2.2.22 (WIN32) php/5.2.10 configured--Resuming normal operations
[Sun Feb 03 18:19:18 2013] [Notice] Server Built:jan 28 2012 11:16:39
[Sun Feb 03 18:19:18 2013] [Notice] parent:created Child Process 5980
[Sun Feb 03 18:19:18 2013] [Notice] Disabled use of AcceptEx () WinSock2 API
[Sun Feb 03 18:19:19 2013] [Notice] Child 5980:child process is running
[Sun Feb 03 18:19:19 2013] [Notice] Child 5980:acquired the start mutex.
[Sun Feb 03 18:19:19 2013] [Notice] Child 5980:starting-worker threads.
[Sun Feb 03 18:19:19 2013] [Notice] Child 5980:listening on port 80.
[Sun Feb 03 18:23:27 2013] [Notice] Child 5980:process exiting because it reached Maxrequestsperchild. Signaling the parent to restart a new child process.
[Sun Feb 03 18:23:27 2013] [Notice] parent:received Restart Signal--restarting the server.
[Sun Feb 03 18:23:28 2013] [Notice] Child 5980:released the start mutex
[Sun Feb 03 18:23:28 2013] [Notice] apache/2.2.22 (WIN32) php/5.2.10 configured--Resuming normal operations
[Sun Feb 03 18:23:28 2013] [Notice] Server Built:jan 28 2012 11:16:39
[Sun Feb 03 18:23:28 2013] [Notice] parent:created Child Process 5324
[Sun Feb 03 18:23:28 2013] [Notice] Disabled use of AcceptEx () WinSock2 API
[Sun Feb 03 18:23:29 2013] [Notice] Child 5324:child process is running
[Sun Feb 03 18:23:29 2013] [Notice] Child 5324:acquired the start mutex.
[Sun Feb 03 18:23:29 2013] [Notice] Child 5324:starting-worker threads.
[Sun Feb 03 18:23:29 2013] [Notice] Child 5324:listening on port 80.
[Sun Feb 03 18:23:34 2013] [Notice] Child 5980:all worker threads has exited.
[Sun Feb 03 18:23:39 2013] [Notice] Child 5980:child process is exiting
[Sun Feb 03 18:30:28 2013] [Notice] Child 5324:process exiting because it reached Maxrequestsperchild. Signaling the parent to restart a new child process.
[Sun Feb 03 18:30:28 2013] [Notice] parent:received Restart Signal--restarting the server.
[Sun Feb 03 18:30:29 2013] [Notice] Child 5324:released the start mutex
[Sun Feb 03 18:30:30 2013] [Notice] apache/2.2.22 (WIN32) php/5.2.10 configured--Resuming normal operations
[Sun Feb 03 18:30:30 2013] [Notice] Server Built:jan 28 2012 11:16:39
[Sun Feb 03 18:30:30 2013] [Notice] parent:created Child Process 5508
[Sun Feb 03 18:30:30 2013] [Notice] Disabled use of AcceptEx () WinSock2 API
[Sun Feb 03 18:30:30 2013] [Notice] Child 5508:child process is running
[Sun Feb 03 18:30:30 2013] [Notice] Child 5508:acquired the start mutex.
[Sun Feb 03 18:30:30 2013] [Notice] Child 5508:starting-worker threads.
[Sun Feb 03 18:30:30 2013] [Notice] Child 5508:listening on port 80.
[Sun Feb 03 18:30:33 2013] [Notice] Child 5324:all worker threads has exited.
[Sun Feb 03 18:30:34 2013] [Notice] Child 5324:child process is exiting
[Sun Feb 03 18:34:41 2013] [Notice] Child 5508:process exiting because it reached Maxrequestsperchild. Signaling the parent to restart a new child process.

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