I was testing earlycon with 8250 dw serial console. And it hangs in
these cases:
1/ kernel hang when calling early write function after free_initmem:
a) the earlycon not disabled after the init code(due to keep_bootcon or
not specify a real console to switch to)
b) the early write func is marked
Hi Greg,
On 07/18/2017 01:08 PM, Greg KH wrote:
On Tue, Jul 18, 2017 at 12:29:59PM +0800, Jeffy Chen wrote:
The earlycon would be alive outside the init code in these cases:
1/ we have keep_bootcon in cmdline.
2/ we don't have a real console to switch to.
So remove the __init marking to avoid
The earlycon would be alive outside the init code in these cases:
1/ we have keep_bootcon in cmdline.
2/ we don't have a real console to switch to.
So remove the __init marking to avoid invalid memory access.
Signed-off-by: Jeffy Chen
---
drivers/tty/serial/arc_uart.c | 4 ++--
1 file changed,
On Tue, Jul 18, 2017 at 12:29:59PM +0800, Jeffy Chen wrote:
> The earlycon would be alive outside the init code in these cases:
> 1/ we have keep_bootcon in cmdline.
> 2/ we don't have a real console to switch to.
>
> So remove the __init marking to avoid invalid memory access.
>
> Signed-off-by:
I was testing earlycon with 8250 dw serial console. And it hangs in
these cases:
1/ kernel hang when calling early write function after free_initmem:
a) the earlycon not disabled after the init code(due to keep_bootcon or
not specify a real console to switch to)
b) the early write func is marked
The earlycon would be alive outside the init code in these cases:
1/ we have keep_bootcon in cmdline.
2/ we don't have a real console to switch to.
So remove the __init marking to avoid invalid memory access.
Signed-off-by: Jeffy Chen
---
drivers/tty/serial/arc_uart.c | 4 ++--
1 file changed,
On Wed, Jul 12, 2017 at 12:40:23PM +0300, Eugeniy Paltsev wrote:
> From: Alexey Brodkin
>
> This initial port adds support of ARC HS Development Kit board with some
> basic features such serial port, USB, SD/MMC and Ethernet.
>
> Essentially we run Linux kernel on all 4 cores (i.e. utilize SMP)
On Mon, 2017-07-17 at 09:06 -0700, Vineet Gupta wrote:
> Hi Christoph,
>
> On 07/16/2017 11:42 PM, Christoph Hellwig wrote:
> >
> > I would expect that it would support any contiguous range in
> > the kernel mapping (e.g. no vmalloc and friends). But it's not
> > documented anywhere, and if no i
Hi Christoph,
On 07/16/2017 11:42 PM, Christoph Hellwig wrote:
I would expect that it would support any contiguous range in
the kernel mapping (e.g. no vmalloc and friends). But it's not
documented anywhere, and if no in kernel users makes use of that
fact at the moment it might be better to do
