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From Peter Van Biesen <>
Subject apache 2.0.46 : segmentation fault or hangs system
Date Wed, 02 Jul 2003 07:39:03 GMT

a couple of weeks ago I upgraded our servers from 2.0.43 to 2.0.46.
Since then, child processes on our internal server either exit with a
segmentation fault or keep running but take all CPU power. Hanging
processes occur at a rate of about 5 per hour. As far as I can see the
URLs they are serving are not special and work fine with other child
processes - however, they are all proxy requests.

We are using two apache 2.0.46 is a proxy chain, the internal webserver
hands all requests to the external apache 2.0.46. The external apache
does not have that problem, however, when an error occurs connecting to
a remote site or when an invalid status line is received, I noticed it
does not exit cleanly and an 'invalid status line' error is received
also by the internal server.

I tried to SIGQUIT a hanging childprocess to get a core but it does not
respond ... Is there a way to make a child process core ( I didn't find
a core anywhere ) when receiving a segmentation fault ?

The systems are HPUX 11.0 .

Thanks in advance !


Peter Van Biesen
Adj. Sysadmin V.F.S.I.P.H.

tel: +32 (0) 2 225 85 70
fax: +32 (0) 2 225 85 88

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