Re: 8.21.2-c53c - failure on rm/deep-2 and du/long-from-unreadable

[C de-Avillez]

On Mon, 18 Feb 2013 14:55:24 -0600
C de-Avillez <address@hidden> wrote:

> On Mon, 18 Feb 2013 19:38:20 +0000
> Pádraig Brady <address@hidden> wrote:
> 
> > On 02/18/2013 06:14 PM, C de-Avillez wrote:
> > > Both tests failed at the same point:
> > >
> > > foreach my $i (1..52)' -e '  { mkdir ($d, 0700) && chdir $d or die
> > > "$!" }' File name too long at -e line 2.
> > >
> > > I do not remember seeing this error anytime recently (but I have
> > > been lax on running the tests, sorry).
> > >
> > > I have attached both logs here.
> > >
> > > Ubuntu Raring, kernel 3.8.0-6.13-generic (3.8.0-rc7), libc6
> > > 2.17-0ubuntu4.
> > >
> > > Cheers,
> > >
> > > ..C..
> > >
> > 
> > Just a test setup failure, but interesting nonetheless.
> > 
> > Is wonder is something new adding in new PATH_MAX checks?
> > What file system is this? Does it happen if you use the shell
> > snippet in tests/du/long-from-unreadable.sh rather than the perl
> > snippet?
> > 
> > thanks,
> > Pádraig.
> > 
> 
> This is an ext4, no special options. Using the shell snippet succeeds:
> 
> $ dir=$(printf '%200s\n' ' ' | tr ' ' x)
> $ for i in $(seq 52); do mkdir $dir|| exit -1; cd $dir||exit -1; done;
> echo $?
> 0
> xxxxxxx... (humongous directory) ...xxxxx/$
> 
> Running the perl script by itself *also* did not fail (line wrapped):
> 
> $ perl  -e 'my $d = '$dir'; foreach my $i (1..52)  { mkdir ($d, 0700)
> && chdir $d or die "$!" }'; echo $?
> 0
> $
> 
> That's surprising, digging in.
> 
> ..C..
> 

Ah, got it -- the coreutils source is under my home dir; this is an
encrypted FS:

/home/hggdh/.Private on /home/hggdh type ecryptfs 
(ecryptfs_check_dev_ruid,ecryptfs_cipher=aes,ecryptfs_key_bytes=16,ecryptfs_unlink_sigs,ecryptfs_sig=<sig>,ecryptfs_fnek_sig=<sig2>)

I was running the snippets under /, which is not encrypted.

So, I guess, this is a limitation on of ecryptfs.

Cheers,

..C..

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