Date: Mon, 21 Oct 2002 14:09:53 -0700 From: Lars Eggert <larse@ISI.EDU> To: Duncan Barclay <dmlb@dmlb.org> Cc: current <current@FreeBSD.ORG> Subject: Re: zombies from linux binaries Message-ID: <3DB46D21.2050807@isi.edu> In-Reply-To: <XFMail.20021002005307.dmlb@computer.my.domain> References: <XFMail.20021002005307.dmlb@computer.my.domain>
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This is a cryptographically signed message in MIME format. --------------ms090808090005050707010600 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Duncan, Duncan Barclay wrote: > On 01-Oct-2002 Lars Eggert wrote: > > >I've been running the guidescope web ad blocker > >(http://www.guidescope.com/home/) as a Linux binary under FreeBSD for a > >long time. The thing seems to fork a child for each web request it > proxies. > > > >Under -current, it seems that the child processes become zombies, and > >the proxy stops working once 1024 or so accumulate. The zombies don't go > >away when parent process finishes, they stick around until reboot. > > Is this http://www.freebsd.org/cgi/query-pr.cgi?pr=42457 related? It > is for stable but I belive that the same behaviour is present in -current > and it may manifest itself differently. I have finally applied your patch from the PR, but unfortunately it does not fix the problem with guidescope I am seeing. Looks like something else is broken WRT Linux forking: [larse@nik: ~] ps -auxww | grep guide larse 0 0.0 0.0 0 0 ?? ZW - 0:00.00 (guide.new) larse 0 0.0 0.0 0 0 ?? ZW - 0:00.00 (guide.new) larse 0 0.0 0.0 0 0 ?? ZW - 0:00.00 (guide.new) larse 0 0.0 0.0 0 0 ?? ZW - 0:00.00 (guide.new) larse 0 0.0 0.0 0 0 ?? ZW - 0:00.00 (guide.new) larse 0 0.0 0.0 0 0 ?? ZW - 0:00.00 (guide.new) larse 0 0.0 0.0 0 0 ?? ZW - 0:00.00 (guide.new) larse 0 0.0 0.0 0 0 ?? ZW - 0:00.00 (guide.new) larse 0 0.0 0.0 0 0 ?? ZW - 0:00.00 (guide.new) larse 0 0.0 0.0 0 0 ?? ZW - 0:00.00 (guide.new) larse 0 0.0 0.0 0 0 ?? ZW - 0:00.00 (guide.new) larse 0 0.0 0.0 0 0 ?? ZW - 0:00.00 (guide.new) larse 0 0.0 0.0 0 0 ?? ZW - 0:00.00 (guide.new) larse 2117 0.0 0.2 40128 2200 ?? I 1:56PM 0:00.09 /nfs/ruby/larse/bin/guide.new /nfs/ruby/larse/bin/guide/guide.conf larse 2762 0.0 0.2 40128 2200 ?? S 1:59PM 0:00.01 /nfs/ruby/larse/bin/guide.new /nfs/ruby/larse/bin/guide/guide.conf larse 2763 0.0 0.2 40128 2200 ?? S 1:59PM 0:00.22 /nfs/ruby/larse/bin/guide.new /nfs/ruby/larse/bin/guide/guide.conf larse 0 0.0 0.0 0 0 ?? ZW - 0:00.00 (guide.new) larse 2861 0.0 0.0 316 184 p0 L+ 2:03PM 0:00.00 grep guide larse 0 0.0 0.0 0 0 ?? ZW - 0:00.00 (guide.new) larse 0 0.0 0.0 0 0 ?? ZW - 0:00.00 (guide.new) larse 0 0.0 0.0 0 0 ?? ZW - 0:00.00 (guide.new) Lars -- Lars Eggert <larse@isi.edu> USC Information Sciences Institute --------------ms090808090005050707010600 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIJtjCC AzgwggKhoAMCAQICEGZFcrfMdPXPY3ZFhNAukQEwDQYJKoZIhvcNAQEEBQAwgdExCzAJBgNV BAYTAlpBMRUwEwYDVQQIEwxXZXN0ZXJuIENhcGUxEjAQBgNVBAcTCUNhcGUgVG93bjEaMBgG A1UEChMRVGhhd3RlIENvbnN1bHRpbmcxKDAmBgNVBAsTH0NlcnRpZmljYXRpb24gU2Vydmlj ZXMgRGl2aXNpb24xJDAiBgNVBAMTG1RoYXd0ZSBQZXJzb25hbCBGcmVlbWFpbCBDQTErMCkG CSqGSIb3DQEJARYccGVyc29uYWwtZnJlZW1haWxAdGhhd3RlLmNvbTAeFw0wMDA4MzAwMDAw MDBaFw0wNDA4MjcyMzU5NTlaMIGSMQswCQYDVQQGEwJaQTEVMBMGA1UECBMMV2VzdGVybiBD YXBlMRIwEAYDVQQHEwlDYXBlIFRvd24xDzANBgNVBAoTBlRoYXd0ZTEdMBsGA1UECxMUQ2Vy dGlmaWNhdGUgU2VydmljZXMxKDAmBgNVBAMTH1BlcnNvbmFsIEZyZWVtYWlsIFJTQSAyMDAw 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