On 9/13/19 8:26 AM, John Ogness wrote: > 9. Support for printk dictionaries will be discontinued. I will look > into who is using this and why. If printk dictionaries are important for > you, speak up now!
I think this functionality is important. I've been experimenting with a change which adds dictionary data to storage related printk messages so that a persistent durable id is associated with them for filtering, eg. $ journalctl -r _KERNEL_DURABLE_NAME=naa.0000000000bc614e This has the advantage that when the device attachment changes across reboots or detach/reattach cycles you can easily find its messages throughout it's recorded history. Other reasons were outlined when introduced, ref. https://lwn.net/Articles/490690/ I believe this functionality hasn't been leveraged to its full potential yet. -Tony
