Messages in this thread | | | From | David Howells <> | Subject | Re: [PATCH 2/9] rxrpc: Disable a debugging statement that has been left enabled. | Date | Thu, 07 Apr 2016 21:42:34 +0100 |
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Joe Perches <joe@perches.com> wrote:
> > Let's see... If the machine panics whilst I'm developing stuff (quite > > likely if something goes wrong in BH context), how do I get at the > > function tracing log to find out why it panicked if the log is then > > lost? With the serial console, at least I automatically capture the > > output of kenter and co.. > > But you also don't get a bunch of other useful stuff. > > btw: there is ftrace_dump_on_oops > > https://lwn.net/Articles/366796/
Cute.
How do I get at the argument values and suchlike that kenter() and co print? I presume I would need to replace any kenter() or suchlike that printed more than just the address with a tracing hook?
David
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