Re: TRIM support with XFS
On 6/29/2013 11:45 PM, John Andreasson wrote:
> On Sun, Jun 30, 2013 at 1:47 AM, Stan Hoeppner <stan@hardwarefreak.com> wrote:
>> Post the XFS mount entry(s) in dmesg and any errors.
>
> [ 2.119489] SGI XFS with ACLs, security attributes, realtime, large
> block/inode numbers, no debug enabled
> [ 2.119716] SGI XFS Quota Management subsystem
> [ 2.120753] XFS (sda2): Mounting Filesystem
> [ 2.150708] XFS (sda2): Ending clean mount
>
>> Paste the exact line from /etc/fstab.
>
> UUID=xxxx-xxxx /boot/efi vfat
> defaults 0 1
> UUID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx / xfs
> defaults,discard,noatime 0 1
> UUID=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx none swap sw
> 0 0
>
>> I should have remembered this sooner. You're using initrd I assume
>> since this is a stock install. The problem here is that the rootfs is
>> being mounted via initrd. If you didn't rebuild it after adding discard
>> to /etc/fstab, this explains your problem.
>>
>> Rebuilding initrd should fix it.
>
> Apart from the change in default file system it's pretty much a stock
> install. I've rebuilt the inird and rebooted the machine; but no
> change in /proc/mounts.
Hmm...
Last thing to try is rootflags. To your kernel line in menu.lst add
root=/dev/sdXX rootflags=discard ro
If that doesn't do it maybe there's a bug here.
--
Stan
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