Bob Proulx wrote:
> The version of rm you are using is 4.0.36 from the GNU fileutils
> package. And that happens to be later than 4.0s (equivalent to 4.0.19
> in the new numbering) that the fix was reported fixed in. It is
> possible that a glibc problem is occurring on your system.
I dont think it's a glibc or kernel problem, I have managed do both
create and delete directory-trees deeper with other tools (perl
one-liners and smallish c-hacks, see further down).
> I believe I am running into the filesystem max path length in both
> cases. It just can't make a path any deeper at that point.
Really?! I think its more of a shell-limit when creating the directories
(se further down). I have not actually tested how deep I can make the
tree, since the point was just to proove that 'rm' dies rather than
informing the user of its problems.
> But using rm version 4.1 I cannot create any failures removing that
> deep path on either system.
I don't think a tree with a depth of 4202 is any problem, I actually
don't know how large it has to be to break rm, it may vary from system
to system.
- - - -
I fetched the 4.1 tarball and made another test:
[1st we make a tree 19999 dirs deep]
# perl -e 'for($i=0;$i<20000;$i++){mkdir "z";system("/bin/sync");chdir
z";print "$i ";}'
[As usual the 4.0.36 version segfaults]
# rm -rf z
Segmentation fault (core dumped)
[And so does the 4.1 version]
# ./fileutils-4.1/src/rm --version
rm (fileutils) 4.1
Written by Paul Rubin, David MacKenzie, Richard Stallman, and Jim Meyering.
Copyright (C) 2001 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# ./fileutils-4.1/src/rm -rf z
Segmentation fault (core dumped)
[Other tool, pike, happily deletes what perl created]
# pike -e 'int
zc=0;while(file_stat("z",0)){cd("z");zc++;write("%d.",zc);};write("\n");for(;zc>0;zc--){cd("..");write("%d-",Stdio.recursive_rm("z"));write("%d.",zc);}'
--
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/ Sten Eriksson | Mail: [EMAIL PROTECTED]
/ Uppsala Universitet, IT-Stöd | Tel. work: +46 18 471 79 26 /
Nätgruppen | Tel. mob: +46 70 425 06 76 /
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