Messages in this thread | | | Date | Mon, 13 Nov 2017 18:21:34 +0000 | From | James Hogan <> | Subject | Re: [PATCH] MIPS: Add iomem resource for kernel bss section. |
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On Thu, Oct 12, 2017 at 12:50:34PM -0700, David Daney wrote: > The kexec/kdump tools need to know where the .bss is so it can be > included in the core dump. This allows vmcore-dmesg to have access to > the dmesg buffers of the crashed kernel as well as allowing the > debugger to examine variables in the bss section. > > Add a request for the bss resource in addition to the already > requested code and data sections. > > Signed-off-by: David Daney <david.daney@cavium.com>
Thanks, applied.
Cheers James
> --- > arch/mips/kernel/setup.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c > index fe39397..702c678 100644 > --- a/arch/mips/kernel/setup.c > +++ b/arch/mips/kernel/setup.c > @@ -80,6 +80,7 @@ EXPORT_SYMBOL(mips_io_port_base); > > static struct resource code_resource = { .name = "Kernel code", }; > static struct resource data_resource = { .name = "Kernel data", }; > +static struct resource bss_resource = { .name = "Kernel bss", }; > > static void *detect_magic __initdata = detect_memory_region; > > @@ -927,6 +928,8 @@ static void __init resource_init(void) > code_resource.end = __pa_symbol(&_etext) - 1; > data_resource.start = __pa_symbol(&_etext); > data_resource.end = __pa_symbol(&_edata) - 1; > + bss_resource.start = __pa_symbol(&__bss_start); > + bss_resource.end = __pa_symbol(&__bss_stop) - 1; > > for (i = 0; i < boot_mem_map.nr_map; i++) { > struct resource *res; > @@ -966,6 +969,7 @@ static void __init resource_init(void) > */ > request_resource(res, &code_resource); > request_resource(res, &data_resource); > + request_resource(res, &bss_resource); > request_crashkernel(res); > } > } > -- > 2.9.5 >
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