Re: [PATCH 1/2] ARC: show_regs: avoid page allocator

[Vineet Gupta]

On 12/20/18 4:57 AM, Michal Hocko wrote:
>> Despite this, lockdep still barfs (see next change), but this patch
>> still has merit as in we use smaller/localized buffers now and there's
>> less instructoh trace to sift thru when debugging pesky issues.
> But show_regs is called from contexts which might be called from deep
> call chains (e.g WARN). Is it safe to allocate such a large stack there?

ARC has 8K pages and 256 additional bytes of stack usage doesn't seem absurdly
high to me !

-Vineet