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bug#21130: test fail: 'tests/ls/stat-failed'
From: |
Pádraig Brady |
Subject: |
bug#21130: test fail: 'tests/ls/stat-failed' |
Date: |
Sat, 25 Jul 2015 06:07:21 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 |
On 24/07/15 22:46, Assaf Gordon wrote:
> Hello,
>
> checking coreutils 8.24, running on NFS, the test 'ls/stat-failed' fails (log
> attached).
>
> If I understand correctly,
> The test creates a symlink to a directory then removes execute permissions:
> mkdir d
> ln -s / d/s
> chmod 600 d
>
> Then tries to dereference it:
> $ ls -Log d
> ls: cannot access d/s: Permission denied
> total 0
> d????????? ? ? ? s
>
> The test expect 's' to have 'l' type, on my system it is 'd'.
>
> The attached patch avoids the failure, though I don't know if this is correct
> or not (perhaps this failure should not be avoided?).
>
> The system is:
> $ uname -a
> Linux XXX 2.6.32-431.el6.x86_64 #1 SMP Fri Nov 22 03:15:09 UTC 2013
> x86_64 x86_64 x86_64 GNU/Linux
> $ gcc --version
> gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-4)
>
> The file system is NFS.
Interesting. Is the NFS server RHEL6 too?
With normal perms on 'd':
On ext4 I get ^d
With syscalls being:
getdents(3, /* 3 entries */, 32768) = 72
stat("d/s", {st_mode=S_IFDIR|0555, st_size=4096, ...}) = 0
With -x perms on 'd':
On nfsv4 here I get ^?
On ext4 I get ^l
With syscalls being:
getdents(3, /* 3 entries */, 32768) = 72
stat("d/s", 0x7f634b9594a0) = -1 EACCES (Permission denied)
So it seems you're getting next->d_type==DR_DIR in that case?
That would be wrong, but a system issue rather than a problem in ls I think.
The test adjustment looks OK but would benefit from a comment
stating the first letter represents d_type and that on buggy
systems may be 'd'.
thanks!
Pádraig
- bug#21130: test fail: 'tests/ls/stat-failed', Assaf Gordon, 2015/07/24
- bug#21130: test fail: 'tests/ls/stat-failed',
Pádraig Brady <=
- bug#21130: test fail: 'tests/ls/stat-failed', Pádraig Brady, 2015/07/25
- bug#21130: test fail: 'tests/ls/stat-failed', Paul Eggert, 2015/07/25
- bug#21130: test fail: 'tests/ls/stat-failed', Pádraig Brady, 2015/07/25
- bug#21130: test fail: 'tests/ls/stat-failed', Assaf Gordon, 2015/07/25
- bug#21130: test fail: 'tests/ls/stat-failed', Paul Eggert, 2015/07/25
- bug#21130: test fail: 'tests/ls/stat-failed', Assaf Gordon, 2015/07/25
- bug#21130: test fail: 'tests/ls/stat-failed', Paul Eggert, 2015/07/25