I am getting the same kinds of errors, but the resolutions offered here did not work. After using the ideas (that there was a tmp_* file I did not have perms to write to, I started doing some global searches. One such was this (from inside .git/objects): # ls -alR | grep tmp ls: reading directory ./97: Input/output error So I tried: # cd 97 # ls -l ls: reading directory .: Input/output error total 0K To fix it, I did this: # cd .. # rm -fr ./97 The git push then worked fine. I'll add a few more pieces to the puzzle. I have some of my git repositories on a USB drive (the ones I get this issue with). I move it from system to system. When git works, it works okay. But this irritant hits me about once a week. My previous solution was to blow away the repo and rebuild it (something suggested several times here). This is the first time I have found a workaround. These are my private repositories that hold my private files. I have a github account I use for my public ones, plus my company has both a public github and their own privately hosted github. So the same exact computer systems (laptops and VMs) use all four with impunity. Almost all of them are linux based -- a mix of CentOS 7.x and Linux Mint 14.x; all using git v1.9.1. The one exception is osx. Thus the (brand new Toshiba 4T) USB drive is built with the exFAT filesystem. When it works, it works okay; but as I said, one of my dozen git repos will fail like this on a weekly basis. None of the items in my dockerhub or artifactory fail, nor do my rsnapshot processes, or VLC/Banshee, etc. I've pretty much isolated it down to git. It is the ONLY app that fails. I have noted in the past few months that the frequency of errors tells me I cannot be using the USB drive for anything else while git is accessing the drive. [mac specific: it is better when I use a USB 2.0 hub to plug the drive in; we all are probably aware that the mac seems to have more issues with USB 3.0...] Anyway, I figured I'd toss this into the mix. Since it only happens once a week or so, I cannot guarantee I'll have an update soon, but if someone is curious, ping me, and I'll let you know when it happens again. DL -- View this message in context: http://git.661346.n2.nabble.com/remote-rejected-master-master-n-a-unpacker-error-tp5043046p7643470.html Sent from the git mailing list archive at Nabble.com. -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html