Re: 2.6.4-mm1

Joel Becker
2004-03-11T22:01:30Z

On Thu, Mar 11, 2004 at 09:43:54PM +0000, Joe Thornber wrote:
> struct dm_ioctl { 0
> uint32_t version[3];
> uint32_t data_size; 4
>
> uint32_t data_start;
>
> uint32_t target_count;
> int32_t open_count;
> uint32_t flags; 8
> uint32_t event_nr;
> uint32_t padding; 10 ***

Here's probably the problem. Many 64bit arches align 64bit
numbers on a 64bit boundary. So it is adding 2 more words of padding to
start the u64 at offset 12.

> uint64_t dev;
>
> char name[DM_NAME_LEN];
> char uuid[DM_UUID_LEN];
> };

Joel

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Life's Little Instruction Book #313

"Never underestimate the power of love."

Joel Becker
Senior Member of Technical Staff
Oracle Corporation
E-mail: joel.becker@oracle.com
Phone: (650) 506-8127