* kmem_alloc: NULL ptr (name=unknown) - is it a serious problem?
@ 2000-07-22 2:39 Jun Sun
2000-07-23 23:28 ` Ralf Baechle
0 siblings, 1 reply; 2+ messages in thread
From: Jun Sun @ 2000-07-22 2:39 UTC (permalink / raw)
To: linux, linux-mips
I found a couple of these annoying messages at the beginning of kernel
startup. It seems that some subsystems are requesting regions
(request_region()) before kernel even initialize its memory.
It appears to me this reservation is just for mutual exclusive access to
some memory region. Since I have a static system (no PnP and hot swap
etc), so I can safely ignore them.
Does that make sense?
What is the right to avoid these warnings?
Jun
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: kmem_alloc: NULL ptr (name=unknown) - is it a serious problem?
2000-07-22 2:39 kmem_alloc: NULL ptr (name=unknown) - is it a serious problem? Jun Sun
@ 2000-07-23 23:28 ` Ralf Baechle
0 siblings, 0 replies; 2+ messages in thread
From: Ralf Baechle @ 2000-07-23 23:28 UTC (permalink / raw)
To: Jun Sun; +Cc: linux, linux-mips
On Fri, Jul 21, 2000 at 07:39:42PM -0700, Jun Sun wrote:
> I found a couple of these annoying messages at the beginning of kernel
> startup. It seems that some subsystems are requesting regions
> (request_region()) before kernel even initialize its memory.
>
> It appears to me this reservation is just for mutual exclusive access to
> some memory region. Since I have a static system (no PnP and hot swap
> etc), so I can safely ignore them.
>
> Does that make sense?
Not really. The kernel initializes all devices long after memory
managment, see init/main.c:start_kernel(). So the simple suggestion
would be to delay initialization.
Ralf
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2000-07-22 2:39 kmem_alloc: NULL ptr (name=unknown) - is it a serious problem? Jun Sun
2000-07-23 23:28 ` Ralf Baechle
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