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SubjectRe: lockdep warning while booting POWER9 PowerNV
On 8/30/19 2:13 PM, Qian Cai wrote:
> Once in a while, booting an IBM POWER9 PowerNV system (8335-GTH) would generate
> a warning in lockdep_register_key() at,
> if (WARN_ON_ONCE(static_obj(key)))
> because
> key = 0xc0000000019ad118
> &_stext = 0xc000000000000000
> &_end = 0xc0000000049d0000
> i.e., it will cause static_obj() returns 1.

(back from a trip)

Hi Qian,

Does this mean that on POWER9 it can happen that a dynamically allocated
object has an address that falls between &_stext and &_end? Since I am
not familiar with POWER9 nor have access to such a system, can you
propose a patch?



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