Hi, this is an issue in Copr: https://bugzilla.redhat.com/show_bug.cgi?id=1268192 this happen rarely, but this is not first report. So I should address it somehow. Google say: http://serverfault.com/questions/338439/ssh-sessions-terminate-abruptly-with-message-corrupted-mac-on-input-disconnect https://ask.openstack.org/en/question/25306/slow-network-speed-between-vm-and-external/ I hesitate to turn off checksumming, but switching TCP segmentation offload off gains some improvements. During several measurements I see gain from 15.2 sec to 14.6 sec (when transferring Fedora ISO). But I was unable to reproduce the packet corruption. The question is - should I disable TCO on Copr machines only, or should I disable it in general VM spinup playbook for all our VM? And this wiki: https://www.rdoproject.org/Using_GRE_tenant_networks#Offloading suggest to turn it off for physical hosts too. Not sure why. I welcome your comments Mirek -------- Přeposlaná zpráva -------- Předmět: [Bug 1268192] New: Rsync fails with "Corrupted MAC on input. Disconnecting: Packet corrupt" Datum: Fri, 02 Oct 2015 05:27:49 +0000 Od: bugzilla@xxxxxxxxxx Komu: msuchy@xxxxxxxxxx https://bugzilla.redhat.com/show_bug.cgi?id=1268192 Bug ID: 1268192 Summary: Rsync fails with "Corrupted MAC on input. Disconnecting: Packet corrupt" Product: Copr Component: backend Assignee: msuchy@xxxxxxxxxx Reporter: redhatbugzilla@xxxxxxxxxx Description of problem: copr builds are building successfully, but the final rsync fails with an error message. Version-Release number of selected component (if applicable): How reproducible: Random, occurred twice on Fedora Rawhide, once on EPEL 7, but I only did 5 builds. Steps to Reproduce: 1. Start a copr build, possibly only on EPEL7/Fedora Rawhide 2. Wait 3. Build might be marked as failed despite rpm packages being in the fold afterwards. Actual results: Some copr builds fail inexplicably in the middle of an rsync job. Expected results: Rsync is successful Additional info: Affected builds: https://copr-be.cloud.fedoraproject.org/results/kyl191/nginx-pagespeed/fedora-rawhide-x86_64/00122195-nginx-pagespeed/build-00122195.rsync.log https://copr-be.cloud.fedoraproject.org/results/kyl191/nginx-pagespeed/epel-7-x86_64/00122218-nginx-pagespeed/build-00122218.rsync.log https://copr-be.cloud.fedoraproject.org/results/kyl191/nginx-pagespeed/fedora-rawhide-i386/00122219-nginx-pagespeed/build-00122219.rsync.log -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ infrastructure mailing list infrastructure@xxxxxxxxxxxxxxxxxxxxxxx http://lists.fedoraproject.org/postorius/infrastructure@xxxxxxxxxxxxxxxxxxxxxxx
