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It's only about 1% of boots, though. Let me try to bisect this and start a new thread. > 2) > > BUG: KASAN: out-of-bounds in rcu_nmi_enter+0x6e/0xf0 > Read of size 4 at addr ff11000034e38b10 by task swapper/0/0 I haven't seen this without your patches, although it's the exact same callsite so I assume it must be related to the first problem. Vegard