On (12/02/18 20:23), Tetsuo Handa wrote: > > Some examples for console output: > > [ 0.919699]@T1 x86: Booting SMP configuration: > [ 4.152681]@T271 Fusion MPT base driver 3.04.20 > [ 5.070470]@C0 random: fast init done > [ 6.587900]@C3 random: crng init done
This is hard to read. Let's have a fixed width space for from_id. > +#ifdef CONFIG_PRINTK_FROM > + if (in_task()) > + msg->from_id = current->pid; Let's use task_pid_nr(). > -static size_t print_time(u64 ts, char *buf) > -{ > - unsigned long rem_nsec = do_div(ts, 1000000000); > - > - if (!buf) > - return snprintf(NULL, 0, "[%5lu.000000] ", (unsigned long)ts); > - > - return sprintf(buf, "[%5lu.%06lu] ", > - (unsigned long)ts, rem_nsec / 1000); > -} OK, this patch depends on printk_time patch. > +config PRINTK_FROM > + bool "Show caller information on printks" > + depends on PRINTK Wasn't it supposed to also depend on DEBUG_AID_FOR_SYZBOT? -ss