RE: [PATCH] sata_nv: fix ADMA ATAPI issues with memory over 4GB (v3)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Yes, I believe that - otherwise, this problem would have
been a crisis a LONG time ago...:-)
 
But I do have some more questions in relationship to how 
things are mapped in your environment. I have a flat memory 
map (i.e.: the full 0x0 -- 0x1_0000_0000 is passed to the 32bit 
Linux kernel without any 'holes' and/or reserved areas).
 
Does your Intel memory map have this same type of flat memory 
model (and thus allow use of the FULL lower 4Gig) - or does it 
reserve areas of lower 4Gig for devices and such - if not - where 
are these reserved areas - and how do the relate to the I/O memory
map for the device?
 
In other words, I would be very interested in seeing the memory 
map & the PCI memory mapping to see if any overlap/correspond 
to reserve areas of lower 4 Gig (in a linux 32bit mode)...
 
Tom

________________________________

From: Mark Lord [mailto:liml@xxxxxx]
Sent: Fri 11/23/2007 12:46 PM
To: Morrison, Tom
Cc: Robert Hancock; linux-kernel; ide; Jeff Garzik; Tejun Heo
Subject: Re: [PATCH] sata_nv: fix ADMA ATAPI issues with memory over 4GB (v3)



Morrison, Tom wrote:
> I am hopeful that the sata_mv has this bug (I proved that the
> problem I was experiencing was due to the sata_mv driver
> with 3.75Gig or more of memory)...
> 
> I am on vacation for a week or more ...or I'd tell you today
> if it did have this bug!
..

Yeah, I kind of had your reports in mind when I asked that.  :)

On a related note, I now have lots of Marvell (sata_mv) hardware here,
and an Intel CPU/chipset box with physical RAM above the 4GB boundary.

Cheers


-
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Filesystems]     [Linux SCSI]     [Linux RAID]     [Git]     [Kernel Newbies]     [Linux Newbie]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Samba]     [Device Mapper]

  Powered by Linux