* mdadm: bitmaps not supported by this kernel?
@ 2006-10-25 21:16 Michael Tokarev
2006-10-26 0:25 ` Paul Clements
0 siblings, 1 reply; 2+ messages in thread
From: Michael Tokarev @ 2006-10-25 21:16 UTC (permalink / raw)
To: linux-raid
Another 32/64 bits issue, it seems.
Running 2.6.18.1 x86-64 kernel and mdadm 2.5.3 (32 bit).
# mdadm -G /dev/md1 --bitmap=internal
mdadm: bitmaps not supported by this kernel.
# mdadm -G /dev/md1 --bitmap=none
mdadm: bitmaps not supported by this kernel.
etc.
Recompiling mdadm in 64bit mode eliminates the problem.
So far, only bitmap manipulation is broken this way.
I dunno if other things are broken too - at least
--assemble, --create, --stop, --detail works.
Thanks.
/mjt
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: mdadm: bitmaps not supported by this kernel?
2006-10-25 21:16 mdadm: bitmaps not supported by this kernel? Michael Tokarev
@ 2006-10-26 0:25 ` Paul Clements
0 siblings, 0 replies; 2+ messages in thread
From: Paul Clements @ 2006-10-26 0:25 UTC (permalink / raw)
To: Michael Tokarev; +Cc: linux-raid
Michael Tokarev wrote:
> Another 32/64 bits issue, it seems.
> Running 2.6.18.1 x86-64 kernel and mdadm 2.5.3 (32 bit).
>
> # mdadm -G /dev/md1 --bitmap=internal
> mdadm: bitmaps not supported by this kernel.
>
> # mdadm -G /dev/md1 --bitmap=none
> mdadm: bitmaps not supported by this kernel.
>
> etc.
>
> Recompiling mdadm in 64bit mode eliminates the problem.
I think this is due to the bug I reported a month or so ago. We were
missing a COMPATIBLE_IOCTL entry for the GET_BITMAP_FILE ioctl. Neil has
sent in the patch.
> So far, only bitmap manipulation is broken this way.
> I dunno if other things are broken too - at least
> --assemble, --create, --stop, --detail works.
Yeah, I think everything else works.
--
Paul
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