title: git clone to NFS disk error: fatal: write error: Bad file descriptor
body: <p>I have a NFS server and shared a disk(without ssd cached) to few host，When users git clone to this NFS disk form our gitlab，it always got error like that: </p>
  
  <pre><code>remote: Compressing objects: 100% (430/430), done.
  fatal: write error: Bad file descriptor.61 MiB | 453.00 KiB/s     
  fatal: index-pack failed
  </code></pre>
  
  <p>If only one man git clone, it will be done, if many peoples git at the same time, will get errors.
  This is the config of our NFS server:</p>
  
  <pre><code>/data/proj 192.168.1.0/24(rw,no_root_squash,sync,no_subtree_check)
  </code></pre>
  
  <p>This is the host mount info:</p>
  
  <pre><code>192.168.1.10:/data/proj on /proj type nfs4 (rw,relatime,vers=4.1,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=192.168.2.211,local_lock=none,addr=192.168.1.10)
  </code></pre>
  
  <p>I try to change the NFS server config like async, but it not work, change .gitconfig setting not work so.
  I think the issue is more like in NFS-server config, but I don't know how to solve it, Please help! </p>