[lkml]   [2001]   [Aug]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: yenta_socket hangs sager laptop in kernel 2.4.6-> PNPBIOS life saver
Alan Cox wrote:
> > Try -ac Kernels with integrated PNPBIOS and "lspnp -v",
> > then you will see your "motherboard resources". No magic.
> Except on the intel boards where your machine crashes, the vaio's where
> some queries corrupt memory, the boxes where an interrupt during a pnpbios
> call crashes the box, the machines where pnpbios called from both cpus at
> the same time is a crash case, the wonderful weird tiny races on some boxes
> that use smm traps and fail if random undefined things occur between the
> two out instructions...

So call it only once early on boot (in real mode) and save the table
for later use (we don't need the fancy features ...) ?

> > Alan, 2.4 would largely benefit from PNPBIOS, do you plan
> > to submit this to LT (probably with the proposed life saver fix) ?
> Experience is that PnpBIOS services are so astoundingly buggy in many
> bioses that they are probably not worth the risk. Ie more boxes break by
> calling pnpbios than by assuming the vendor used a sane resource layout.

How are these bugs handled by Windows ?
Must we only mimick the Windows call layout to
enter bios-writer's well tested code path ?

> Before PnPBIOS can go mainstream we'd have to generate a detailed list
> of buggy bios signatures
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 12:57    [W:0.083 / U:0.008 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site