>What's the nature of the corruption Its unclear, file attributes, names, size all appear the same from ls output. I initially discovered it while setting up a local repo, dpkg didn't recognize the deb file output. Diff throws IO errors. Copying with cp appears to work (failing silently) dd & rsync both throw an input output error when attempting to copy affected files. lsof of the affected files directly after a copy throws an unable to stat (I'm not too versed with lsof so that may be a common problem unrelated).
>How do you mean "flush of the write buffer"? I used hdparm -f on the device node after unmounting it, I then used eject before physically removing it. >3 Seconds sounds way too short - My thoughts exactly, the copy was over a usb 2.0 root hub so I would expect no more than 30MB/sec. The issue only appears for this specific USB Drive I've tested 5 other usb thumbdrive models with no issue. I've linked the exact model below. https://www.amazon.com/SanDisk-Ultra-Transfer-Speeds-s-SDCZ48-032G-UAM46/dp/B00KYK2AKO -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1681138 Title: silent file corruption with cp -ar file transfers to USB To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/coreutils/+bug/1681138/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs