[U-Boot] buildman error

[Bin Meng]

Hi Simon,

When building u-boot-spi/next, I got lots of error messages like below
after cloning, however the build seems to be not affected (ie: build
is running and the summary statistics is updating on the shell)

Exception in thread Thread-32:
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/threading.py", line 801, in __bootstrap_inner
    self.run()
  File "/u-boot/tools/buildman/builderthread.py", line 477, in run
    self.RunJob(job)
  File "/u-boot/tools/buildman/builderthread.py", line 410, in RunJob
    self.builder.force_build_failures)
  File "/u-boot/tools/buildman/builderthread.py", line 187, in RunCommit
    force=True)
  File "/u-boot/tools/buildman/../patman/gitutil.py", line 227, in Checkout
    raise OSError, 'git checkout (%s): %s' % (pipe, result.stderr)
OSError: git checkout (['git', '--git-dir',
'/work/buildman/spi-next/.bm-work/31/.git', '--work-tree',
'/work/buildman/spi-next/.bm-work/31', 'checkout', '-f',
'1284caa4694d69d64e27191d7e5b822b51c3ea2c']): fatal: unable to create
threaded lstat

Do you know what's the issue here?

Regards,
Bin