From mboxrd@z Thu Jan 1 00:00:00 1970 From: Carsten Aulbert Subject: Re: running iozone on bcache0 device yields wrongly read data Date: Sun, 06 Oct 2013 19:33:08 +0200 Message-ID: <52519ED4.5070303@aei.mpg.de> References: <5238AAE5.8000800@aei.mpg.de> <20130917204059.GB32037@kmo-pixel> <52392D4D.3020506@aei.mpg.de> <20130918044551.GD32386@kmo-pixel> <52394B5C.8000106@aei.mpg.de> <523967C8.7010502@aei.mpg.de> <20130918084835.GA19161@kmo-pixel> <52399172.2030206@aei.mpg.de> Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms000903090904060905030304" Return-path: In-Reply-To: <52399172.2030206-l1a6w7hxd2yELgA04lAiVw@public.gmane.org> Sender: linux-bcache-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Kent Overstreet Cc: linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-bcache@vger.kernel.org This is a cryptographically signed message in MIME format. --------------ms000903090904060905030304 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hi Kent (et al.) On 09/18/2013 01:41 PM, Carsten Aulbert wrote: > Wilco - if I new hot to git bisect across various branches I'd do that > as well. >=20 I hit a bumpy road with bisectioning with kernels refusing to boot (not finding their rootfs neither via UUID nor /dev/sd{a,b}) and we had a large conference to run, so I failed to find any "bad" commit. Also, it did not help, that I needed to get the test machine into production use last week - now I need another test bed for testing. Given that I used a 32GB SSD and the problems only ever occurred when the iozone file size was close or exceeded the capacity of the cache device, does this help you in guessing what I hit along the road? Cheers Carsten --------------ms000903090904060905030304 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIE8DCC BOwwggPUoAMCAQICAk/QMA0GCSqGSIb3DQEBBQUAMDYxCzAJBgNVBAYTAkRFMRMwEQYDVQQK EwpHZXJtYW5HcmlkMRIwEAYDVQQDEwlHcmlkS2EtQ0EwHhcNMTMwNTA2MTU1OTM4WhcNMTQw NjA1MTU1OTM4WjA9MRMwEQYDVQQKEwpHZXJtYW5HcmlkMQwwCgYDVQQLEwNBRUkxGDAWBgNV BAMTD0NhcnN0ZW4gQXVsYmVydDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAJzM vu6K/4EHUx/JuCoansTOW8cSyuPbvElm7IfuuEfXHJ1/m/Lbkv/C7oA+0Pvk4WCOLBx1OVUk 4vVZ0Lq6G9ekTgeZVaqFvHXKlFdUvdp3b5/nlAGc3z7GaDG/F6LdI5Iu374cTdeSvkuNseRg KZP6Qq4GIMAZZ2hv1JC/xDxZs/59ACuL0IsjmdZPEiR8uiF01ZejehmdFiPJJP8at+PJgnoW hW21Gh72CYI3CjvfB37Q5fUOqF1gMsfJmsJokwYfLLy8BcWbmP5BQ8IOL42F2RsuPTctnnbS hhYj73Qyp4/Mxzeg1r34ZevEqM1pX6ceW7I/7Aos8HmhbcW71KMCAwEAAaOCAfswggH3MAwG A1UdEwEB/wQCMAAwDgYDVR0PAQH/BAQDAgSwMB0GA1UdDgQWBBTeMPDcRbuXT/FdxHmf8kNH EWVOVjAfBgNVHSMEGDAWgBTGdckorNEL/Dz/ubUe0187gGISNDAlBgNVHREEHjAcgRpDYXJz dGVuLkF1bGJlcnRAYWVpLm1wZy5kZTAcBgNVHRIEFTATgRFncmlka2EtY2FAa2l0LmVkdTA1 BgNVHR8ELjAsMCqgKKAmhiRodHRwOi8vZ3JpZC5memsuZGUvY2EvZ3JpZGthLWNybC5kZXIw KAYDVR0gBCEwHzAPBg0rBgEEAZQ2qywBAQEIMAwGCiqGSIb3TAUCAgEwEQYJYIZIAYb4QgEB BAQDAgWgME4GCWCGSAGG+EIBDQRBFj9DZXJ0aWZpY2F0ZSBpc3N1ZWQgdW5kZXIgQ1AvQ1BT IHYuIDEuOCBhdCBodHRwOi8vZ3JpZC5memsuZGUvY2EwJAYJYIZIAYb4QgECBBcWFWh0dHA6 Ly9ncmlkLmZ6ay5kZS9jYTAzBglghkgBhvhCAQgEJhYkaHR0cDovL2dyaWQuZnprLmRlL2Nh L2dyaWRrYS1jcHMucGRmMDMGCWCGSAGG+EIBAwQmFiRodHRwOi8vZ3JpZC5memsuZGUvY2Ev Z3JpZGthLWNybC5kZXIwDQYJKoZIhvcNAQEFBQADggEBALkdDvMzLkK1EpFkRPxEA4GpbYyy 5p59V9057HT/QUYvD7rO5KiayiRoDqgKeDW59Fek1N5W0d2IuN+j+VWLDqlBI1THd33F3Dqc 08Me/q6OkpHDjhCDnuH353n2gyxnsmXEEMozhx4onJbX0N3kZxjgNKEiP9R+zOq6Qq+CgKFS O5w/wdtCTQ5Tpfr/n90KWYwVQ2er5dnKowu6j9YIj/dD8jJGk3T13rgzdnRzWtSQhjP8YIRf ql08NsUgDShjNiBo289K7fpBNdVLGNI/pIA8P1ratofCGBPvMdjp+cjhulQX5//qS1ctP0ux 8MhY3kBMGynLkwibH5MiLfVSip0xggLOMIICygIBATA8MDYxCzAJBgNVBAYTAkRFMRMwEQYD VQQKEwpHZXJtYW5HcmlkMRIwEAYDVQQDEwlHcmlkS2EtQ0ECAk/QMAkGBSsOAwIaBQCgggFn MBgGCSqGSIb3DQEJAzELBgkqhkiG9w0BBwEwHAYJKoZIhvcNAQkFMQ8XDTEzMTAwNjE3MzMw OFowIwYJKoZIhvcNAQkEMRYEFLxVASPZwN0ADAJAst3GesjZq+XKMEsGCSsGAQQBgjcQBDE+ MDwwNjELMAkGA1UEBhMCREUxEzARBgNVBAoTCkdlcm1hbkdyaWQxEjAQBgNVBAMTCUdyaWRL YS1DQQICT9AwTQYLKoZIhvcNAQkQAgsxPqA8MDYxCzAJBgNVBAYTAkRFMRMwEQYDVQQKEwpH ZXJtYW5HcmlkMRIwEAYDVQQDEwlHcmlkS2EtQ0ECAk/QMGwGCSqGSIb3DQEJDzFfMF0wCwYJ YIZIAWUDBAEqMAsGCWCGSAFlAwQBAjAKBggqhkiG9w0DBzAOBggqhkiG9w0DAgICAIAwDQYI KoZIhvcNAwICAUAwBwYFKw4DAgcwDQYIKoZIhvcNAwICASgwDQYJKoZIhvcNAQEBBQAEggEA cFbZZgdp9bmet92lvQCqmRtVaqzm2mE+7JMaKdJ4CyfNeZkgCE75fsQVrOk+zn0NMM5HNBb3 i3MkmuoDsTn1+hjTy+ybHba3gZRgWuT8Y6FbgaCSYaY1BtWUA3lYCYgnGOUBkxf5bhvLf7aC 9QuLlySllQSI0RuKjiCceR0ZFHUAt0ik8qvXoe0y7byJJR4yIIfKWnAv0rkfuzIWYlahRk9U Wulqr95WULo+DJD6EGWo3YiB2VR692foCIPFnHD5QXRAYq7rb1oxhnqEMb/4nXrLpnY3OMrU PLM3Ik+AeZ5IWwS+daVm1LDj7QXUn9VVZnjAbDb4PdGQU6BqHX5ySwAAAAAAAA== --------------ms000903090904060905030304--