Re: 2.4.21rc8aa1

[Andrea Arcangeli]

On Sat, Jun 28, 2003 at 03:34:35AM +0200, J.A. Magallon wrote:
> 
> Hi,
> 
> On 06.12, Andrea Arcangeli wrote:
> > This version has some experimental change to the blkdev layer (latency
> > fixes from Chris and Nick too plus the backout of the rc6 latency change
> > to see if we can fix it w/o generating overscheduling, especially
> > because it doesn't sound the right fix), so I would recommend some
> > beating before doing anything critical with it. I would expect it as
> > worse to deadlock with some task in D state. It worked fine for me so
> > far but I didn't run big stress yet. In theory it should be better, but
> > I just wanted to give a warning until it is better tested ;).
> > 
> > URL:
> > 
> > 	http://www.us.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.21rc8aa1.gz
> > 	http://www.us.kernel.org/pub/linux/kernel/people/andrea/kernels/v2.4/2.4.21rc8aa1/
> > 
> 
> In sg.c, gcc shouts on:
> 
>     PRINT_PROC("%u\t%hu\t%hd\t%hu\t%d\t%d\n",
>            shp->unique_id, shp->host_busy, shp->cmd_per_lun,
>            shp->sg_tablesize, (int)shp->unchecked_isa_dma,
>            (int)shp->hostt->emulated);
> 
> shp->host_busy should be accessed through atomic_read(), I think.

correct ;), thanks

Andrea