Hi Geert,
IMHO - QEMU is irrelevant here. since I can do passthrough --
in fact -- many drivers do use timeout in .fb_sync
e.g. i810fb_sync(), nouveau_fbcon_sync(), sm501fb_sync() etc..
I believe the correct behaviour should be a timeout wait instead of
waiting indefinitely.
- Tong
On Wed, Feb 24,
Hi Tong,
On Sun, Feb 21, 2021 at 1:05 AM Tong Zhang wrote:
> On Sat, Feb 20, 2021 at 6:33 PM Randy Dunlap wrote:
> > On 2/20/21 3:02 PM, Tong Zhang wrote:
> > > pm2fb_sync is called when doing /dev/fb read or write.
> > > The original pm2fb_sync wait indefinitely on hardware flags which can
> >
Hi Tong,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on linus/master]
[also build test ERROR on v5.11 next-20210219]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https:/
Hi Tong,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on linus/master]
[also build test ERROR on v5.11 next-20210219]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https:/
Hi Randy,
Thanks for the comment.
I currently have this problem on my machine.
I have submitted a revised patch -- which includes the console log.
Thanks!
- Tong
On Sat, Feb 20, 2021 at 6:33 PM Randy Dunlap wrote:
>
> Hi--
>
> On 2/20/21 3:02 PM, Tong Zhang wrote:
> > pm2fb_sync is called when do
Hi--
On 2/20/21 3:02 PM, Tong Zhang wrote:
> pm2fb_sync is called when doing /dev/fb read or write.
> The original pm2fb_sync wait indefinitely on hardware flags which can
> possibly stall kernel and make everything unresponsive.
> Instead of waiting indefinitely, we can timeout to give user a cha
pm2fb_sync is called when doing /dev/fb read or write.
The original pm2fb_sync wait indefinitely on hardware flags which can
possibly stall kernel and make everything unresponsive.
Instead of waiting indefinitely, we can timeout to give user a chance to
get back control.
Signed-off-by: Tong Zhang
