From: Ed L Cashin <[email protected]>
Date: Wed, 31 Aug 2005 11:50:55 -0400
> Jim MacBaine <[email protected]> writes:
>
> > Aug 31 15:18:49 sunny kernel: devfs_mk_dir: invalid argument.<6>
> > etherd/e0.0: unknown partition table
> > Aug 31 15:18:49 sunny kernel: aoe: 0011d8xxxxxx e0.0 v4000 has
> > 67553994410557440
> > sectors
>
> OK. 67553994410557440 is 61440 byte swapped in 64 bits, and 30MB is
> 61440 sectors, so this should be a simple byte order fix.
More strangely, the upper and lower 32-bit words are swapped.
The bytes within each 32-bit word are swapped correctly.
So the calculation maybe should be something like:
__le32 *p = (__le32 *) &id[100 << 1];
u32 high32 = le32_to_cpup(p);
u32 low32 = le32_to_cpup(p + 1);
ssize = (((u64)high32 << 32) | (u64) low32);
But that doesn't make any sense, and even ide_fix_driveid() in
drivers/ide/ide-iops.c does a le64_to_cpu() for this value:
id->lba_capacity_2 = __le64_to_cpu(id->lba_capacity_2);
I wonder if this is some artifact of how AOE devices encode
this field when sending it to the client.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
| |
 |