Re: RT-3.10.6_p3 fails to boot: home.mount mounting timed out

[Sebastian Andrzej Siewior <bigeasy@linutronix.de>]

* Sebastian Andrzej Siewior | 2013-11-22 16:13:44 [+0100]:

>* Light | 2013-10-26 12:35:54 [+0800]:
>
>> I am trying to build a RT kernel, however it cannot boot because it
>>cannot mount /home, which is a subvolume of btrfs.  This is the entry
>>of it in /etc/fstab:
>>
>>/dev/sda3    /home    btrfs
>>subvol=gentoohome,defaults,compress=lzo,autodefrag 0 2

So I tried this myself. I've setup a FC19 box with btrfs with a root
subvolume and a home subvolume. The etc/fstab
|[root@fc19-64 ~]# grep btrfs /etc/fstab 
|UUID=b5045733-8f7d-48e4-a4ad-a58bf44cb49f /      btrfs subvol=root     1 1
|UUID=b5045733-8f7d-48e4-a4ad-a58bf44cb49f /home  btrfs subvol=home     1 1

and it booted:
|[root@fc19-64 ~]# uname -a
|Linux fc19-64.testing 3.12.8-rt10 #250 SMP PREEMPT RT Fri Jan 24 19:18:38 CET 2014 x86_64 x86_64 x86_64 GNU/Linux
|[root@fc19-64 ~]# mount | grep btrfs
|/dev/vda2 on / type btrfs (rw,relatime,seclabel,space_cache)
|/dev/vda2 on /home type btrfs (rw,relatime,seclabel,space_cache)

except for the different mount opts (compress=lzo,autodefrag) I don't
see what is different here.

Sebastian