Date: Mon, 21 Oct 2002 11:18:35 -0700 From: Lars Eggert <larse@ISI.EDU> To: John Baldwin <jhb@FreeBSD.org> Cc: current <current@FreeBSD.org> Subject: Re: panic: mtx_lock() of spin mutex Message-ID: <3DB444FB.50202@isi.edu> References: <XFMail.20021018123309.jhb@FreeBSD.org>
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This is a cryptographically signed message in MIME format. --------------ms000306030807040206060600 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit John Baldwin wrote: > On 18-Oct-2002 Lars Eggert wrote: > >>John Baldwin wrote: >> >> >>>What is line 488 of src/sys/kern/kern_descrip.c? >> >>fhold(fp) in do_dup(). > > > Hrm. You can try adding some KASSERT()'s that the reference > count of that struct file isn't zero or negative. > fd_refcnt is an u_short, but I've added a KASSERT that makes sure it's not zero, and will test. Lars -- Lars Eggert <larse@isi.edu> USC Information Sciences Institute --------------ms000306030807040206060600 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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