Alan Cox wrote:
* Ingo Molnar <mingo@xxxxxxx> wrote:
build its random kernel and reboot into it (800 MHz P3), so i started a full automated bisection instead driven from a faster box.
and the winner is: | 871af1210f13966ab911ed2166e4ab2ce775b99d is first bad commit | commit 871af1210f13966ab911ed2166e4ab2ce775b99d | Author: Alan Cox <alan@xxxxxxxxxx> | Date: Mon Jan 5 14:16:39 2009 +0000 | | libata: Add 32bit PIO support And the revert below does the trick.
Unfortunately it only hides the bug - that code doesn't change the sg lists being passed, it just catches out anyone who pasts a non divisble by four malformed sg list.
All the S/G counts printed out were divisible by 4 (36 for INQUIRY and 96 for REQUSET SENSE). It's the *actual* byte count for the REQUEST SENSE that's no divisible. The SCSI/ATAPI devices are free to sent less data than requested on non block transfer commands.
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