IOError: [Errno 28] No space left on device

[hong zhang]

--- On Tue, 11/17/09, Tim Chase <python.list at tim.thechases.com> wrote:

> From: Tim Chase <python.list at tim.thechases.com>
> Subject: Re: IOError: [Errno 28] No space left on device
> To: "Lie Ryan" <lie.1296 at gmail.com>
> Cc: python-list at python.org
> Date: Tuesday, November 17, 2009, 7:47 PM
> >> for i in
> glob.glob('/sys/kernel/debug/ieee80211/phy*/iwlagn/data/continuous_tx'):
> >>     with open(i, 'w') as f:
> >>         print
> >>f, cont_tx
> >> 
> >> work perfectly.
> >> 
> >> But following get error like:
> >> print >>f, cont_tx
> >> IOError: [Errno 28] No space left on device
> > 
> > Apparently the harddisk where you stored the file is
> full?
> 
> Likely a misinterpretation of the error.  I'm guessing
> either one needs to be root to write to this [likely
> virtual] file, or a member of an associated group.  It
> would help to have the output of
> 
> bash$ whoami
> bash$ id
> 
> and
> 
> bash$ ls -lsF
> /sys/kernel/debug/ieee80211/phy*/iwlagn/data/continuous_tx

It is root. see following. 

  File "./henry-cont-tx", line 186, in do_cont_tx
    print >>f, cont_tx
IOError: [Errno 28] No space left on device
root at tester-laptop:/home/tester/Desktop/sv-project/scripts/scripts# whoami
root
root at tester-laptop:/home/tester/Desktop/sv-project/scripts/scripts# id
uid=0(root) gid=0(root) groups=0(root)
root at tester-laptop:/home/tester/Desktop/sv-project/scripts/scripts# ls -lsF /sys/kernel/debug/ieee80211/phy*/iwlagn/data/continuous_tx
0 -rw------- 1 root root 0 2009-11-17 17:51 /sys/kernel/debug/ieee80211/phy2/iwlagn/data/continuous_tx


> 
> I'd be particularly interested in the group association and
> the permission bits.
> 
> -tkc
> 
> 
> 
> 
> 
> 
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>