Hi, When pstore is enabled and a *pr_info(any printk) in __memcpy_toio(arch/arm64/kernel/io.c)* is added, kernel wont boot and just hangs.
The path where __memcpy_toio is called is below:
->persistent_ram_update
-> memcpy_toio
-> __memcpy_toio
I tried with trace_printk and kernel boots fine. I understand that
printk has overhead, but is this expected when we use some printk
statement in __memcpy_toio?
Or is it some kind of bug? Tested on db410c.
Please let me know your opinion.
Thanks,
