Hi, What about ftrace ? Documentation/trace/ftrace.txt
Thanks Lucas On Tue, Nov 26, 2019 at 8:08 PM aleave <[email protected]> wrote: > > Hi everyone, > > I'm modifying kernel code and running into system dead-lock issues. I have > printk statements to try to retrieve info about the freeze after I do a hard > shutdown, but printk is asynchronous so /var/log/kern.log only shows NULL > character gibberish instead (^@^@^@^@). Is there a way to make printk > synchronous? I have looked at people using printk_sync and printk.synchronous > variables as recently as 2017, but I don't see any reference to these anymore > in the kernel version I have (5.4). > > Thanks for the help. > > > _______________________________________________ > Kernelnewbies mailing list > [email protected] > https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies _______________________________________________ Kernelnewbies mailing list [email protected] https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
