Messages in this thread | | | Subject | Re: lockdep warning while booting POWER9 PowerNV | From | Bart Van Assche <> | Date | Wed, 4 Sep 2019 09:09:09 -0700 |
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On 8/30/19 2:13 PM, Qian Cai wrote: > https://raw.githubusercontent.com/cailca/linux-mm/master/powerpc.config > > 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?
Thanks,
Bart.
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