[bitbake-devel] lsof fails with python exception when bitbake is finished

[Martin Jansa]

I haven't checked what leads to this error, but with latest oe-core and bitbake
I've noticed ugly python exception after successful build with bitbake:


Summary: There were 35 WARNING messages shown.
Process ProcessServer-1:
Traceback (most recent call last):
  File "/usr/lib/python2.7/multiprocessing/process.py", line 258, in _bootstrap
    self.run()
  File "/OE/bitbake/lib/bb/server/process.py", line 104, in run
    bb.cooker.server_main(self.cooker, self.main)
  File "/OE/bitbake/lib/bb/cooker.py", line 1692, in server_main
    cooker.post_serve()
  File "/OE/bitbake/lib/bb/cooker.py", line 1627, in post_serve
    procs = subprocess.check_output(["lsof", '-w', lockfile], stderr=subprocess.STDOUT)
  File "/usr/lib/python2.7/subprocess.py", line 573, in check_output
    raise CalledProcessError(retcode, cmd, output=output)
CalledProcessError: Command '['lsof', '-w', '/OE/bitbake.lock']' returned non-zero exit status 1
/OE/$ lsof -w /OE/bitbake.lock
/OE/$ echo $?
1
/OE/$ ls -lah bitbake.lock 
-rw-rw-r-- 1 mjansa mjansa 0 May  5 13:19 bitbake.lock

$ lsof -v
lsof version information:
    revision: 4.86
    latest revision: ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/
    latest FAQ: ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/FAQ
    latest man page: ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/lsof_man
    constructed: Sun Dec 2 02:36:48 UTC 2012
    constructed by and on: buildd at allspice
    compiler: cc
    compiler version: 4.7.2 (Ubuntu/Linaro 4.7.2-12ubuntu1) 
    compiler flags: -g -O2 -fPIE -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -DLINUXV=37000 -DGLIBCV=216 -DHASIPv6 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -DHAS_STRFTIME -DLSOF_VSTR="3.7.0" -O
    loader flags: -L./lib -llsof -Wl,-Bsymbolic-functions -fPIE -pie -Wl,-z,relro -Wl,-z,now
    system info: Linux allspice 3.2.0-33-generic #52-Ubuntu SMP Thu Oct 18 16:29:15 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
    Anyone can list all files.
    /dev warnings are disabled.
    Kernel ID check is disabled.

Is this expected?
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