On Fri, May 18, 2018 at 2:54 PM, Petr Mladek <pmla...@suse.com> wrote: > On Fri 2018-05-18 14:25:57, Dmitry Vyukov wrote: >> > On Thu 2018-05-17 20:21:35, Sergey Senozhatsky wrote: >> >> Dunno... >> >> For instance, can we store context tracking info as a extended record >> >> data? We have that dict/dict_len thing. So may we can store tracking >> >> info there? Extended records will appear on the serial console /* if >> >> console supports extended data */ or can be read in via devkmsg_read(). >> >> What consoles do support it? >> We are interested at least in qemu console, GCE console and Android >> phone consoles. But it would be pity if this can't be used on various >> development boards too. > > Only the netconsole is able to show the extended (dict) > information at the moment. Search for CON_EXTENDED flag.
Then we won't be able to use it. And we can't pipe from devkmsg_read in user-space, because we need this to work when kernel is broken in various ways...
