Messages in this thread | | | Subject | Re: [PATCH 2/3][RFC] tracing: Add optional percpu buffers for trace_printk() | From | Peter Zijlstra <> | Date | Mon, 10 Oct 2011 15:04:33 +0200 |
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On Mon, 2011-10-10 at 08:37 -0400, Steven Rostedt wrote:
> This will make debugging some of my embedded boards difficult (the ones > where I have no way to add kernel command lines). If there's a problem > at boot up, I will have to modify the kernel to get this to print. > > For those that don't know the tracing code, it will just simply break. > > Unless you want me to keep the kconfig option that enables it > permanently. Then I could do this.
There's a fairly easy fix for that, initialize it at boot, and free once userspace it up and running if no trace_printk() came by.
> I also expect tglx to throw frozen sharks at me for "why doesn't > trace_printk() work anymore?!!!!"
I'm sure you'll get over that :-)
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