Re: [PATCH v5 1/2] lib: stackdepot: Add support to configure STACK_HASH_SIZE

[Randy Dunlap]

On 1/18/21 1:56 AM, vjitta@xxxxxxxxxxxxxx wrote:
> From: Yogesh Lal <ylal@xxxxxxxxxxxxxx>
> 
> Use CONFIG_STACK_HASH_ORDER to configure STACK_HASH_SIZE.
> 
> Aim is to have configurable value for  STACK_HASH_SIZE,
> so depend on use case one can configure it.
> 
> One example is of Page Owner, default value of
> STACK_HASH_SIZE lead stack depot to consume 8MB of static memory.
> Making it configurable and use lower value helps to enable features like
> CONFIG_PAGE_OWNER without any significant overhead.
> 
> Signed-off-by: Yogesh Lal <ylal@xxxxxxxxxxxxxx>
> Signed-off-by: Vinayak Menon <vinmenon@xxxxxxxxxxxxxx>
> Signed-off-by: Vijayanand Jitta <vjitta@xxxxxxxxxxxxxx>

Hi,

Did you see
https://lore.kernel.org/lkml/202101050729.cwTd47Yw-lkp@xxxxxxxxx/

It seems that arch/arc/ does not have:
   arc-elf-ld: lib/stackdepot.o: in function `filter_irq_stacks':
   (.text+0x6): undefined reference to `__irqentry_text_start'
>> arc-elf-ld: (.text+0x6): undefined reference to `__irqentry_text_start'
>> arc-elf-ld: (.text+0x26): undefined reference to `__irqentry_text_end'
>> arc-elf-ld: (.text+0x26): undefined reference to `__irqentry_text_end'
>> arc-elf-ld: (.text+0x34): undefined reference to `__softirqentry_text_start'
>> arc-elf-ld: (.text+0x34): undefined reference to `__softirqentry_text_start'
>> arc-elf-ld: (.text+0x3c): undefined reference to `__softirqentry_text_end'
>> arc-elf-ld: (.text+0x3c): undefined reference to `__softirqentry_text_end'




-- 
~Randy
You can't do anything without having to do something else first.
-- Belefant's Law