On Tue, 2018-04-24 at 19:10 +0200, Paul Menzel wrote: > Please find the configuration file attached. The log only has > `initcall_debug no_console_suspend` added. What I was looking for in the .config is the following: CONFIG_SCSI_MQ_DEFAULT=y Can you also provide the disassembly output for blk_set_runtime_active, e.g. by loading vmlinux into gdb and by running the command "disas blk_set_runtime_active"? Thanks, Bart.