bug: git-repack -a -d produces broken pack on NFS

NFS server: 2.6.15
Client: 2.6.17-rc2
mount options: tigra:/home /net/home nfs rw,nosuid,nodev,noatime,vers=3,rsize=8192,wsize=32768,hard,intr,proto=udp,timeo=7,retrans=3,addr=tigra 0 0

Repack protocol ($SRC is /net/home/src):

$SRC/linux.git$ git repack -a -d
Generating pack...
Done counting 235947 objects.
Deltifying 235947 objects.
 100% (235947/235947) done
Writing 235947 objects.
 100% (235947/235947) done
Total 235947, written 235947 (delta 182131), reused 235466 (delta 181650)
Pack pack-6dcda5a7782864d57ec44bd30ebec13b07df2c87 created.
$SRC/linux.git$ git fsck-objects --full
git-fsck-objects: error: Packfile .git/objects/pack/pack-6dcda5a7782864d57ec44bd
30ebec13b07df2c87.pack SHA1 mismatch with idx
git-fsck-objects: fatal: delta data unpack failed
$SRC/linux.git$ git fsck-objects --full
git-fsck-objects: error: Packfile .git/objects/pack/pack-6dcda5a7782864d57ec44bd
30ebec13b07df2c87.pack SHA1 mismatch with idx
git-fsck-objects: fatal: delta data unpack failed
$SRC/linux.git$ du -sh .
124M    .
$SRC/linux.git$ cp . -a $BIG/linux.git
$SRC/linux.git$ cd $BIG/linux.git
$BIG/linux.git$ git fsck-objects --full
git-fsck-objects: error: Packfile .git/objects/pack/pack-6dcda5a7782864d57ec44bd
30ebec13b07df2c87.pack SHA1 mismatch with idx
git-fsck-objects: fatal: delta data unpack failed
$BIG/linux.git$ git clone -n . ../tmp
Generating pack...
Done counting 235947 objects.
Deltifying 235947 objects.
 100% (235947/235947) done
Total 235947, written 235947 (delta 182131), reused 235947 (delta 182131)

git-index-pack: fatal: packfile '/mnt/large/tmp/raa/tmp/.git/objects/pack/tmp-wc Rvk5': bad object at offset 102601801: inflate returned -3 git-fetch-pack: error: git-fetch-pack: unable to read from git-index-pack git-fetch-pack: error: git-index-pack died with error code 128 fetch-pack from '/mnt/large/tmp/raa/linux.git/.git' failed.

So the repository is now _really_ broken. I didn't noticed when it started to happen, sorry.