cannot fetch from gerrit git://

[Lionel Elie Mamane]

$ egrep -A2 '^\[remote "origin"\]' .git/config
[remote "origin"]
fetch = +refs/heads/*:refs/remotes/origin/*
url = git://gerrit.libreoffice.org/core
$ git fetch origin
remote: Counting objects: 704, done.
remote: Compressing objects: 100% (27/27), done.
remote: warning: packfile ./objects/pack/pack-8b907b026227f51dc9234d7a40128b19a6bfc40c.pack cannot be accessed
remote: error: refs/tags/cp-5.0-18 does not point to a valid object!
remote: warning: packfile ./objects/pack/pack-c56a30ae5f41aa55d060bd441b59eeb2e0a48a7d.pack cannot be accessed
remote: error: refs/tags/cp-5.0-19 does not point to a valid object!
remote: warning: packfile ./objects/pack/pack-05c73a3f601967129220b30648feb10876ab07cb.pack cannot be accessed
remote: error: refs/tags/cp-5.0-20 does not point to a valid object!
remote: warning: packfile ./objects/pack/pack-d0127a6f2741ef2a8d443b625405e16574e156bd.pack cannot be accessed
remote: error: refs/tags/cp-5.0-21 does not point to a valid object!
remote: warning: packfile ./objects/pack/pack-b021cf6c06b0e46bf526ba7680b1e940863d5f44.pack cannot be accessed
remote: error: refs/tags/libreoffice-5.0.5.1 does not point to a valid object!
remote: warning: packfile ./objects/pack/pack-d8f99aef820301e9510f57a94b47399b0da57c7a.pack cannot be accessed
remote: error: refs/tags/libreoffice-5.1.0.2 does not point to a valid object!
remote: warning: packfile ./objects/pack/pack-c95e01b5f74371dfdc8a7f6e97f542b8419ed90f.pack cannot be accessed
remote: error: refs/tags/libreoffice-5.1.0.3 does not point to a valid object!
remote: error: unable to open object pack directory: ./objects/pack: Too many open files
remote: fatal: failed to read object 198f20238330e60172f67e9c6a21aeefc50136c4: Too many open files
remote: aborting due to possible repository corruption on the remote side.
fatal: protocol error: bad pack header


By contrast, fetching from
git://anongit.freedesktop.org/git/libreoffice/core
works. <shrug>