> > This is called from the #MC handler. Is that a safe context to print a console > > message? It wasn't in the past, but maybe changes to how console messages > > are handled have changed this. > > > > -Tony > > #MC is a kind of NMI context, as far as I know, since > > commit 42a0bb3f71383b457a7db362f1c69e7afb96732b > printk/nmi: generic solution for safe printk in NMI > > print a console message is safe. > > Please correct me if I missed anything. wow, that's v4.7 (ancient history). I thought I'd had issues with debug messages in the machine check handler more recently than that, but perhaps I'm misremembering. -Tony