On Mon, Nov 28, 2016 at 11:52:41PM -0600, Josh Poimboeuf wrote: > Did a little digging on git blame and found the following commit (which > seems to be the cause of the KASAN warning and missing stack dump): > > bc1dce514e9b ("rcu: Don't use NMIs to dump other CPUs' stacks") > > I presume this commit is still needed because of the NMI printk deadlock > issues which were discussed at Kernel Summit. I guess those issues need > to be sorted out before the above commit can be reverted.
Also, I most always run with these here patches applied: https://lkml.kernel.org/r/20161018170830.405990...@infradead.org People are very busy polishing the turd we call printk, but from where I'm sitting its terminally and unfixably broken. I should certainly add a revert of the above commit to the stack of patches I carry.