Re: [PATCH] radix-tree: avoid NULL dereference

From: valdis . kletnieks
Date: Fri Jul 06 2018 - 10:51:40 EST


On Fri, 06 Jul 2018 14:41:44 +0100, Mark Rutland said:

> I beleive this is what Valdis hit [1] back in March. I spotted this while
> booting an arm64 machine.

Yes, the stack trace is the same. The odd part is that I was consistently
seeing it until next-20180626, but it evaporated in sometime between that and
next-20180703. I suspect it has to do with the fact that -0626 was compiled
with gcc 8.1.1-3.fc29, but -0703 with 8.1.1.-4.fc29. As such, I probably won't
be able to test the patch without downgrading gcc....

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