From: Babu Moger <babu.moger@xxxxxxxxxx> Date: Tue, 27 Sep 2016 12:33:26 -0700 > These patches limit the static allocations for lockdep data structures > used for debugging locking correctness. For sparc, all the kernel's code, > data, and bss, must have locked translations in the TLB so that we don't > get TLB misses on kernel code and data. Current sparc chips have 8 TLB > entries available that may be locked down, and with a 4mb page size, > this gives a maximum of 32MB. With PROVE_LOCKING we could go over this > limit and cause system boot-up problems. These patches limit the static > allocations so that everything fits in current required size limit. > > patch 1 : Adds new config parameter CONFIG_PROVE_LOCKING_SMALL > Patch 2 : Adjusts the sizes based on the new config parameter > > v2-> v3: > Some more comments from Sam Ravnborg and Peter Zijlstra. > Defined PROVE_LOCKING_SMALL as invisible and moved the selection to > arch/sparc/Kconfig. > > v1-> v2: > As suggested by Peter Zijlstra, keeping the default as is. > Introduced new config variable CONFIG_PROVE_LOCKING_SMALL > to handle sparc specific case. > > v0: > Initial revision. Series applied, thanks. -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
