GNU bug report logs - #19956
Solved (Re: df fails to show all mounted file systems)

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Message #12 received at 19956-done <at> debbugs.gnu.org (full text, mbox):

From: Pádraig Brady <P <at> draigBrady.com>
To: Vesa-Matti J Kari <vmkari <at> cc.helsinki.fi>, 
 19956-done <at> debbugs.gnu.org
Subject: Re: bug#19956: Solved (Re: df fails to show all mounted file systems)
Date: Sun, 01 Mar 2015 12:39:05 +0000

On 26/02/15 15:41, Vesa-Matti J Kari wrote:
> 
> Hello,
> 
> On Thu, 26 Feb 2015, Vesa-Matti J Kari wrote:
> 
>> [...] starting from coreutils-8.21 (i.e. the bug exist in 8.22 and 8.23
>> too), lots of NFS mounts are missing:
>>
>> vmkari <at> cedi:/var/tmp/vmk$ coreutils-8.21/src/df
>> Filesystem                1K-blocks       Used Available Use% Mounted on
>> /dev/mapper/rvg-root        5134336    4334584    799752  85% /
>> devtmpfs                    8118888          0   8118888   0% /dev
>> tmpfs                       8128372          0   8128372   0% /dev/shm
>> tmpfs                       8128372      18860   8109512   1% /run
>> tmpfs                       8128372          0   8128372   0% /sys/fs/cgroup
>> /dev/sda1                    520876     190144    330732  37% /boot
>> machine-1:/ua/group      1459291104 1113208544 271954816  81% /h/group
>> machine-1:/b/scratch      101721248   75860064  20618816  79% /b/scratch
>> machine-1:/h/a           1001028384  746104672 204068672  79% /h/a
>> machine-1:/usr/local/yht  113402880   78201856  29433856  73% /usr/local/yht
>> machine-1:/q/q            113402528   78201952  29433536  73% /q/q
>> machine-2:/var/spool/mail    230608384   83144160 135929888  38% /var/spool/mail
>>
>> The contents /etc/mtab are correct and "mount" command also works
>> correctly. Could you look into this issue please?
> 
> Wow. I just spent about three hours investigating and came up with this
> little patch for coreutils-8.20:
> 
> ----------- sample starts -------------------------------
> 
> --- coreutils-8.21/src/df.c	2013-02-05 01:40:31.000000000 +0200
> +++ coreutils-8.21-patched/src/df.c	2015-02-26 17:02:41.849872767 +0200
> @@ -624,8 +624,8 @@ filter_mount_list (void)
>          }
>        else
>          {
> -          /* If the device name is a real path name ...  */
> -          if (strchr (me->me_devname, '/'))
> +          /* If the device name is a real path name and not an NFS-mount ...  */
> +          if (strchr (me->me_devname, '/') && !strchr (me->me_devname, ':'))
>              {
>                /* ... try to find its device number in the devlist.  */
>                for (devlist = devlist_head; devlist; devlist = devlist->next)
> 
> ----------- sample ends ------------------------------
> 
> And all in vain because the 'df' utility in the latest coreutils git-repo
> already works correctly. :-)
> 
> So sorry for the noise.
> 
> Do you have plans to release coreutils-8.24 soon? The
> coreutils-8.22.11.el7 on Red Hat Enterprise Linux 7 / CentOS 7 is
> currently broken.

EL7 would get that backport independently of a new release.
That's now tracked at https://bugzilla.redhat.com/1197463

thanks,
Pádraig.

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