reiser4 on PPC

reiser4 on PPC

[Jake Maciejewski]

Now that reiser4 seems to be working on AMD64, I'm trying to test it on
PPC. Unfortunately, I haven't even been able to mount a reiser4 FS.

I get the following error: "mount: No such file or directory". I've
tried a loopback filesystem and a native partition. The same native
patition works when formatted with reiserFS. I've tried the code as a
module and builtin. I was using reiser4progs 1.0.4 and the latest -mm
patch on vanilla, which while not officially supported works on AMD64
and x86 and shouldn't cause a problem like this. fsck.reiser4 says the
unmountable filesystem is consistent. Is there anything else I should
try?

-- 
Jake Maciejewski <maciejej@msoe.edu>

Re: reiser4 on PPC

[Alex Zarochentsev]

Hi,

On Sun, May 01, 2005 at 12:03:13PM -0500, Jake Maciejewski wrote:
> Now that reiser4 seems to be working on AMD64, I'm trying to test it on
> PPC. Unfortunately, I haven't even been able to mount a reiser4 FS.

Unfortunately we could not test reiser4 on PPC because of lack of test machine.
Currently no idea where it might fail.

> I get the following error: "mount: No such file or directory". I've
> tried a loopback filesystem and a native partition. The same native
> patition works when formatted with reiserFS. I've tried the code as a
> module and builtin. I was using reiser4progs 1.0.4 and the latest -mm
> patch on vanilla, which while not officially supported works on AMD64
> and x86 and shouldn't cause a problem like this. fsck.reiser4 says the
> unmountable filesystem is consistent. Is there anything else I should
> try?

can you look at your machine /var/log/messages or dmesg(8) output for reiser4
messages?

If you have possibility to check the fs by an fsck.reiser4 compiled on i386,
please do it.  If you don't have i386 around or have no time to compile the
progs there, make a small file with reiser4 fs image , compress it and make it
downloadable.

> 
> -- 
> Jake Maciejewski <maciejej@msoe.edu>
> 

Thanks in advance,
Alex.

Re: reiser4 on PPC

[Jake Maciejewski]

On Mon, 2005-05-02 at 18:10 +0400, Alex Zarochentsev wrote:
> Hi,
> 
> On Sun, May 01, 2005 at 12:03:13PM -0500, Jake Maciejewski wrote:
> > Now that reiser4 seems to be working on AMD64, I'm trying to test it on
> > PPC. Unfortunately, I haven't even been able to mount a reiser4 FS.
> 
> Unfortunately we could not test reiser4 on PPC because of lack of test machine.
> Currently no idea where it might fail.

I have access to a friend's Mac mini, but you could use PearPC on one of
your x86 machines. The website claims it's ~1/15th speed using
"JITC-X86", so a fast x86 box would give you a reasonable PPC test
environment.

> 
> > I get the following error: "mount: No such file or directory". I've
> > tried a loopback filesystem and a native partition. The same native
> > patition works when formatted with reiserFS. I've tried the code as a
> > module and builtin. I was using reiser4progs 1.0.4 and the latest -mm
> > patch on vanilla, which while not officially supported works on AMD64
> > and x86 and shouldn't cause a problem like this. fsck.reiser4 says the
> > unmountable filesystem is consistent. Is there anything else I should
> > try?
> 
> can you look at your machine /var/log/messages or dmesg(8) output for reiser4
> messages?

I don't remember seeing anything unusual.

> 
> If you have possibility to check the fs by an fsck.reiser4 compiled on i386,
> please do it.  If you don't have i386 around or have no time to compile the
> progs there, make a small file with reiser4 fs image , compress it and make it
> downloadable.

I was able to mount and use it on AMD64, but I don't recall if I fscked
it on AMD64. After adding a file to the reiser4 FS, I transfered the
image back to the PPC machine and it gave me the same mount error. I
suppose I could try making an image on x86 or AMD64.

> 
> > 
> > -- 
> > Jake Maciejewski <maciejej@msoe.edu>
> > 
> 
> Thanks in advance,
> Alex.
> 
-- 
Jake Maciejewski <maciejej@msoe.edu>

Re: reiser4 on PPC

[Jake Maciejewski]

On Mon, 2005-05-02 at 18:10 +0400, Alex Zarochentsev wrote:
> Hi,
> 
> On Sun, May 01, 2005 at 12:03:13PM -0500, Jake Maciejewski wrote:
> > Now that reiser4 seems to be working on AMD64, I'm trying to test it on
> > PPC. Unfortunately, I haven't even been able to mount a reiser4 FS.
> 
> Unfortunately we could not test reiser4 on PPC because of lack of test machine.
> Currently no idea where it might fail.
> 
> > I get the following error: "mount: No such file or directory". I've
> > tried a loopback filesystem and a native partition. The same native
> > patition works when formatted with reiserFS. I've tried the code as a
> > module and builtin. I was using reiser4progs 1.0.4 and the latest -mm
> > patch on vanilla, which while not officially supported works on AMD64
> > and x86 and shouldn't cause a problem like this. fsck.reiser4 says the
> > unmountable filesystem is consistent. Is there anything else I should
> > try?
> 
> can you look at your machine /var/log/messages or dmesg(8) output for reiser4
> messages?

Well, now that I've actually checked it, there is a warning. I get the
same message regardless of the architecture the FS is created on.

reiser4[mount(22352)]: key_warning
(fs/reiser4/plugin/object.c:96)[nikita-717]:
WARNING: Error for inode 720575940379279360 (-2)

This is a clean, consistent filesystem we're talking about, so I guess
it's a kernel problem. Is it worth trying a different kernel version?
I'm trying to avoid -mm because it sometimes breaks alternative
architectures, but I wanted the lastest version of the code. As I
mentioned before, I used a cutsom patch that works on x86. I'm willing
to try other versions if necessary.

> 
> If you have possibility to check the fs by an fsck.reiser4 compiled on i386,
> please do it.  If you don't have i386 around or have no time to compile the
> progs there, make a small file with reiser4 fs image , compress it and make it
> downloadable.
> 
> > 
> > -- 
> > Jake Maciejewski <maciejej@msoe.edu>
> > 
> 
> Thanks in advance,
> Alex.
> 
-- 
Jake Maciejewski <maciejej@msoe.edu>

Re: reiser4 on PPC

[Boyd Waters]

I get this error as well on a newly-created reiser4 filesystem.

I'm using 2.6.12_rc3 with patches from 2.6.11-mm3 (which seemed to  
apply cleanly) on a Macintosh Mini.

What other debugging information is needed?

~ boyd
Boyd Waters
Socorro, New Mexico

> Well, now that I've actually checked it, there is a warning. I get the
> same message regardless of the architecture the FS is created on.
>
> reiser4[mount(22352)]: key_warning
> (fs/reiser4/plugin/object.c:96)[nikita-717]:
> WARNING: Error for inode 720575940379279360 (-2)

Re: reiser4 on PPC

[Boyd Waters]

On May 2, 2005, at 8:10 AM, Alex Zarochentsev wrote:

> Hi,
>
> On Sun, May 01, 2005 at 12:03:13PM -0500, Jake Maciejewski wrote:
>
>> Now that reiser4 seems to be working on AMD64, I'm trying to test  
>> it on
>> PPC. Unfortunately, I haven't even been able to mount a reiser4 FS.
>>
>
> Unfortunately we could not test reiser4 on PPC because of lack of  
> test machine.
> Currently no idea where it might fail.

A test machine could be a $499 Mac Mini. I would be willing to chip  
in for one if we can identify a tester. Would anyone else be willing  
to help me fund this?

~ boyd
Boyd Waters
Socorro, New Mexico

Re: reiser4 on PPC

[mjt]

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On Mon, May 02, 2005 at 01:14:26PM -0600, Boyd Waters wrote:
>
>A test machine could be a $499 Mac Mini. I would be willing to chip  
>in for one if we can identify a tester. Would anyone else be willing  
>to help me fund this?

IIRC a fund drive was talked about earlier and for some reason
discarded. Can't even remember who the guy behind it was, I'm afraid.
I'm sure the Namesys guys could contact him again and ask if he's
willing to organize, if we pull this through again.

I'm willing to chip in for sure, for the record.

-- 
mjt


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Re: reiser4 on PPC

[Adrian Ulrich]

Hi,

> IIRC a fund drive was talked about earlier and for some reason
> discarded. Can't even remember who the guy behind it was, I'm afraid.

It was me..

And i'd still buy them a Mac.. No problem..


 -- Adrian

Re: reiser4 on PPC

[mjt]

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On Tue, May 03, 2005 at 06:31:02PM +0200, Adrian Ulrich wrote:
>
>And i'd still buy them a Mac.. No problem..

But then again, maybe we should organize this by each posting to
the list the amount they donated, and what's left (of what one
costs in Moscow) and have the Namesys guys handle it through
their donation system.

Just check the sums are right and post some status reports every
now and then.

Hans? Zam? Anyone?

-- 
mjt


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Re: reiser4 on PPC

[Hans Reiser]

Adrian Ulrich wrote:

>Hi,
>
>  
>
>>IIRC a fund drive was talked about earlier and for some reason
>>discarded. Can't even remember who the guy behind it was, I'm afraid.
>>    
>>
>
>It was me..
>
>And i'd still buy them a Mac.. No problem..
>
>
> -- Adrian
>
>
>
>  
>
We won't turn down hardware, but it might be a few months before we can 
do something about the port, we have to deal with kernel entry issues first.

Hans

Re: reiser4 on PPC

[Jake Maciejewski]

So you're working on getting reiser4 into vanilla? A recent article
linked on Slashdot said it would be in 2.6.12, but I doubt that's going
to happen. It's nice to hear you're trying. I'm sure some people have
been suspecting that reiser4 has known issues and Namesys is holding it
back.

One of the reasons I reported the PPC bug was because I thought you
would need more architectures working to get into the kernel. Evidently
this is not the case. Are we going to see warnings saying reiser4 is
currently only supported on x86 and AMD64?

On Tue, 2005-05-03 at 11:25 -0700, Hans Reiser wrote:
>
> We won't turn down hardware, but it might be a few months before we can 
> do something about the port, we have to deal with kernel entry issues first.
> 
> Hans
-- 
Jake Maciejewski <maciejej@msoe.edu>