Files corrupt on copy

[Andy Campbell]

On Sat, 27 Jun 2009 13:41:10 +0100, Alan Cox wrote:

>> I've turned AHCI on in BIOS recently as I've install a WD Raptor, and
>> re-installed F10 - would that affect filesystems on other drives - is
>> AHCI buggy ?
> 
> That would show up very very fast for lots of people
>> 
>> I'm using Fedora 10 64bit,  Asus P5Q-E Motherboard, Q9950 ( stock speed
>> ), 8Gb Corsair memory
> 
> Try booting with mem=4G as a first experiment.

Still got the problem.  I had already tried physically removing 4Gb,

[trantor] /proc $cat cmdline
ro root=/dev/VelociRaptor/F10root mem=4G


Failed on the 4th attempt ...

$cp file1.zip new_file.zip  ; cmp file1.zip new_file.zip
$cp file1.zip new_file.zip  ; cmp file1.zip new_file.zip
$cp file1.zip new_file.zip  ; cmp file1.zip new_file.zip
$cp file1.zip new_file.zip  ; cmp file1.zip new_file.zip
file1.zip new_file.zip differ: byte 135644629, line 513910