On 10/02/2011 11:21 PM, Ted Ts'o wrote: > On Sun, Oct 02, 2011 at 10:30:47PM -0400, Daniel Kahn Gillmor wrote:
>> This is a powerpc G5, running debian's powerpc64 3.0
>> (linux-image-3.0.0-1-powerpc64, version 3.0.0-3)
>
> Any chance the resize2fs was a 32-bit binary by any chance?
yes, indeed. this is a ppc64 kernel and a 32-bit powerpc everything-else.
> Oct 2 16:43:39 tut kernel: [ 168.613200] ioctl32(resize2fs:2469):
> Unknown cmd fd(4) cmd(80286608){t:'f';sz:40} arg(ffcfc210) on /usr
>
> is very interesting and suggests the problem is in the 32->64 bit
> compatibility code in the kernel, and explains why most other people
> aren't seeing it.
That sounds plausible to me. powerpc itself also suggests some kind of
endianness issue -- maybe there's some weird intersection of these two
unusual situations?
> Is this failure something that happens reliably, in that on this
> machine, online resizing isn't working pretty much for any file
> system?
I haven't tried resizing any other filesystem. I can try it on another
filesystem once i get access to the machine again and let you know if
it's repeatable.
--dkg
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