* [9fans] Can't ream fs. Panic: config io
@ 2008-07-23 16:30 g.pavelcak
0 siblings, 0 replies; 3+ messages in thread
From: g.pavelcak @ 2008-07-23 16:30 UTC (permalink / raw)
To: 9fans
Hi,
I've been trying to recreate a plan9 file server I had expecting to eventually recover the old setup; however, I can't get past reaming a single disk.
Config goes like
service pinky
config w0
filsys main w0
ream main
end
I don't have anything set up to capture output, but I hope I can give you enough here. It looks something like
drive w0
35885393 blocks at 512 bytes each
2242834 logical blocks at 8192 bytes each
16 multiplier
tag = 0/0; expected 0/10 not flushed
stack trace of 2
...
panic: config io
cpu 0 halted
Any thoughts??
Thanks.
Greg
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [9fans] Can't ream fs. Panic: config io
2008-07-23 16:46 ` erik quanstrom
@ 2008-07-23 16:59 ` a
0 siblings, 0 replies; 3+ messages in thread
From: a @ 2008-07-23 16:59 UTC (permalink / raw)
To: 9fans
// i don't think you can put your configuration in the
// same place you put your fs.
That's at least not globally true, although maybe it
depends what you mean by "your fs". I have:
config w4
filsys main cw4[w<0-3>]
and it works fine. I've not checked to see if the cache
device leaves space that the (pseudo-)worm doesn't.
Certainly it's worth trying sticking the config
elsewhere, and getting a remote, loggable console is
a huge win.
And this should be obvious, but bears repeating given
the consequences: when you say you're looking to
recover an old setup, you know not to ream disks with
data you care about, right?
Anthony
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [9fans] Can't ream fs. Panic: config io
[not found] <072320081630.5717.48875CB4000B6166000016552202888744050E0C040A90>
@ 2008-07-23 16:46 ` erik quanstrom
2008-07-23 16:59 ` a
0 siblings, 1 reply; 3+ messages in thread
From: erik quanstrom @ 2008-07-23 16:46 UTC (permalink / raw)
To: 9fans
> config w0
> filsys main w0
> I don't have anything set up to capture output, but I hope I can give you enough here. It looks something like
>
> drive w0
> 35885393 blocks at 512 bytes each
> 2242834 logical blocks at 8192 bytes each
> 16 multiplier
> tag = 0/0; expected 0/10 not flushed
>
> stack trace of 2
> ...
> panic: config io
> cpu 0 halted
i don't think you can put your configuration in the
same place you put your fs.
i think the superblock's tag is getting written to the
configuration area.
you can use my fs tree from sources which supports
a cec console. you should be able to capture output
with it.
- erik
^ permalink raw reply [flat|nested] 3+ messages in thread
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2008-07-23 16:30 [9fans] Can't ream fs. Panic: config io g.pavelcak
[not found] <072320081630.5717.48875CB4000B6166000016552202888744050E0C040A90>
2008-07-23 16:46 ` erik quanstrom
2008-07-23 16:59 ` a
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