On 2/15/22 20:33, John Ogness wrote: >> I saw deadlocks in the past, and while testing the WIP monitor some >> time ago, it seems it depends on the console type. If such restriction >> does not exist anymore, I can remove that comment, it would be even >> better! > If you say it depended on the console type, then it was probably the > framebuffer console that was at fault. The fbcon is a landmine for > deadlocks, which is why PREEMPT_RT avoids fbcon printing from > non-preemptible context. For mainline, the series is currently in > review. > > Perhaps avoiding fbcon would be good enough for you to avoid deadlocks > with this reactor using printk(). So, I will keep printk(), add a depends on *!* fbcon, and remove the comment. What do you think? -- Daniel
