Messages in this thread | | | From | David Laight <> | Subject | RE: [PATCH printk v1 09/13] printk: add functions to allow direct printing | Date | Fri, 18 Feb 2022 09:00:46 +0000 |
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> On Mon 2022-02-07 20:49:19, John Ogness wrote: > > Once kthread printing is introduced, console printing will no longer > > occur in the context of the printk caller. However, there are some > > special contexts where it is desirable for the printk caller to > > directly print out kernel messages.
Yes - most of them.
It is going to be pretty impossible to do 'hard' kernel debugging if printk get deferred.
Typically there already is a deferral method. The prints aren't done by the kernel, but by syslogd.
David
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