* is realtime device supported?
@ 2010-04-22 14:49 Wengang Wang
2010-04-22 16:23 ` Christoph Hellwig
0 siblings, 1 reply; 6+ messages in thread
From: Wengang Wang @ 2010-04-22 14:49 UTC (permalink / raw)
To: xfs; +Cc: greg.marsden, joe.jin
Hi experts,
Do we support realtime device?
I got the following error:
[root@desk test-xfsprogs]# mkfs.xfs -rrtdev=/dev/sda12,extsize=4096
/dev/sda10 -f
meta-data=/dev/sda10 isize=256 agcount=4, agsize=1250558
blks
= sectsz=512 attr=2
data = bsize=4096 blocks=5002231, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=0
realtime =/dev/sda12 extsz=4096 blocks=2502115,
rtextents=2502115
[root@desk test-xfsprogs]# mount /dev/sda10 /xfs
mount: Function not implemented
[root@desk test-xfsprogs]# mount -ortdev=/dev/sda12 /dev/sda10 /xfs
mount: Function not implemented
regards,
wengang.
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: is realtime device supported?
2010-04-22 14:49 is realtime device supported? Wengang Wang
@ 2010-04-22 16:23 ` Christoph Hellwig
2010-04-22 16:53 ` Eric Sandeen
0 siblings, 1 reply; 6+ messages in thread
From: Christoph Hellwig @ 2010-04-22 16:23 UTC (permalink / raw)
To: Wengang Wang; +Cc: greg.marsden, joe.jin, xfs
On Thu, Apr 22, 2010 at 10:49:39PM +0800, Wengang Wang wrote:
> Do we support realtime device?
>
> I got the following error:
It sounds like you do not have CONFIG_XFS_RT enable in your kernel
configuration. But to answer your original question the realtime
device is not supported in the sense of actively maintained. The
code is still there, but more or less for legacy reasons. I would
not recommend it for new installations.
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: is realtime device supported?
2010-04-22 16:23 ` Christoph Hellwig
@ 2010-04-22 16:53 ` Eric Sandeen
2010-04-23 3:00 ` Wengang Wang
0 siblings, 1 reply; 6+ messages in thread
From: Eric Sandeen @ 2010-04-22 16:53 UTC (permalink / raw)
To: Christoph Hellwig; +Cc: xfs, greg.marsden, joe.jin, Wengang Wang
Christoph Hellwig wrote:
> On Thu, Apr 22, 2010 at 10:49:39PM +0800, Wengang Wang wrote:
>> Do we support realtime device?
>>
>> I got the following error:
>
> It sounds like you do not have CONFIG_XFS_RT enable in your kernel
> configuration. But to answer your original question the realtime
> device is not supported in the sense of actively maintained. The
> code is still there, but more or less for legacy reasons. I would
> not recommend it for new installations.
Agreed.
FWIW, dmesg probably gave you a more helpful error message than
mount...
cmn_err(CE_WARN, "XFS: RT mount failed");
hm or maybe not ;)
-Eric
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: is realtime device supported?
2010-04-22 16:53 ` Eric Sandeen
@ 2010-04-23 3:00 ` Wengang Wang
2010-04-23 3:19 ` Eric Sandeen
0 siblings, 1 reply; 6+ messages in thread
From: Wengang Wang @ 2010-04-23 3:00 UTC (permalink / raw)
To: Eric Sandeen; +Cc: Christoph Hellwig, xfs, greg.marsden, joe.jin, Wengang Wang
On 10-04-22 11:53, Eric Sandeen wrote:
> Christoph Hellwig wrote:
> > On Thu, Apr 22, 2010 at 10:49:39PM +0800, Wengang Wang wrote:
> >> Do we support realtime device?
> >>
> >> I got the following error:
> >
> > It sounds like you do not have CONFIG_XFS_RT enable in your kernel
> > configuration. But to answer your original question the realtime
> > device is not supported in the sense of actively maintained. The
> > code is still there, but more or less for legacy reasons. I would
> > not recommend it for new installations.
Yes, CONFIG_XFS_RT is disabled.
[wwg@desk linux-2.6.18.x86_64]$ grep CONFIG_XFS_RT .config
# CONFIG_XFS_RT is not set
And Ok I see. Also should we add the point to man page of mkfs.xfs?
>
> Agreed.
>
> FWIW, dmesg probably gave you a more helpful error message than
> mount...
>
> cmn_err(CE_WARN, "XFS: RT mount failed");
>
> hm or maybe not ;)
Only "XFS: RT mount failed" :)
Thanks all!
regards,
wengang.
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: is realtime device supported?
2010-04-23 3:00 ` Wengang Wang
@ 2010-04-23 3:19 ` Eric Sandeen
2010-04-25 10:08 ` Wengang Wang
0 siblings, 1 reply; 6+ messages in thread
From: Eric Sandeen @ 2010-04-23 3:19 UTC (permalink / raw)
To: Wengang Wang; +Cc: Christoph Hellwig, greg.marsden, joe.jin, xfs
Wengang Wang wrote:
> On 10-04-22 11:53, Eric Sandeen wrote:
>> Christoph Hellwig wrote:
>>> On Thu, Apr 22, 2010 at 10:49:39PM +0800, Wengang Wang wrote:
>>>> Do we support realtime device?
>>>>
>>>> I got the following error:
>>> It sounds like you do not have CONFIG_XFS_RT enable in your kernel
>>> configuration. But to answer your original question the realtime
>>> device is not supported in the sense of actively maintained. The
>>> code is still there, but more or less for legacy reasons. I would
>>> not recommend it for new installations.
>
> Yes, CONFIG_XFS_RT is disabled.
> [wwg@desk linux-2.6.18.x86_64]$ grep CONFIG_XFS_RT .config
> # CONFIG_XFS_RT is not set
>
> And Ok I see. Also should we add the point to man page of mkfs.xfs?
>
>> Agreed.
>>
>> FWIW, dmesg probably gave you a more helpful error message than
>> mount...
>>
>> cmn_err(CE_WARN, "XFS: RT mount failed");
>>
>> hm or maybe not ;)
>
> Only "XFS: RT mount failed" :)
A patch to explicitly say that it failed because CONFIG_XFS_RT was off
would be happily accepted, too.
I am curious, are you doing a lot of QA type work on xfs? You are finding
some interesting things that could certainly be fixed up, we appreciate it.
Thanks,
-Eric
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: is realtime device supported?
2010-04-23 3:19 ` Eric Sandeen
@ 2010-04-25 10:08 ` Wengang Wang
0 siblings, 0 replies; 6+ messages in thread
From: Wengang Wang @ 2010-04-25 10:08 UTC (permalink / raw)
To: Eric Sandeen; +Cc: Christoph Hellwig, xfs, greg.marsden, joe.jin, Wengang Wang
Hi Eirc,
On 10-04-22 22:19, Eric Sandeen wrote:
> Wengang Wang wrote:
> > On 10-04-22 11:53, Eric Sandeen wrote:
> >> Christoph Hellwig wrote:
> >>> On Thu, Apr 22, 2010 at 10:49:39PM +0800, Wengang Wang wrote:
> >>>> Do we support realtime device?
> >>>>
> >>>> I got the following error:
> >>> It sounds like you do not have CONFIG_XFS_RT enable in your kernel
> >>> configuration. But to answer your original question the realtime
> >>> device is not supported in the sense of actively maintained. The
> >>> code is still there, but more or less for legacy reasons. I would
> >>> not recommend it for new installations.
> >
> > Yes, CONFIG_XFS_RT is disabled.
> > [wwg@desk linux-2.6.18.x86_64]$ grep CONFIG_XFS_RT .config
> > # CONFIG_XFS_RT is not set
> >
> > And Ok I see. Also should we add the point to man page of mkfs.xfs?
> >
> >> Agreed.
> >>
> >> FWIW, dmesg probably gave you a more helpful error message than
> >> mount...
> >>
> >> cmn_err(CE_WARN, "XFS: RT mount failed");
> >>
> >> hm or maybe not ;)
> >
> > Only "XFS: RT mount failed" :)
>
> A patch to explicitly say that it failed because CONFIG_XFS_RT was off
> would be happily accepted, too.
Yes. I will try to make the patch.
>
> I am curious, are you doing a lot of QA type work on xfs? You are finding
> some interesting things that could certainly be fixed up, we appreciate it.
I am just interested in it :). I like to play with various file systems.
regards,
wengang.
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^ permalink raw reply [flat|nested] 6+ messages in thread
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2010-04-22 14:49 is realtime device supported? Wengang Wang
2010-04-22 16:23 ` Christoph Hellwig
2010-04-22 16:53 ` Eric Sandeen
2010-04-23 3:00 ` Wengang Wang
2010-04-23 3:19 ` Eric Sandeen
2010-04-25 10:08 ` Wengang Wang
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