Messages in this thread | | | Date | Tue, 7 Apr 2015 16:19:00 +0600 | Subject | Re: [PATCH] x86/earlyprintk: setup earlyprintk as early as possible | From | Alexander Kuleshov <> |
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2015-04-07 15:52 GMT+06:00 Ingo Molnar <mingo@kernel.org>: > > It would be nice to test it via a well placed printk() and check that > before the patch the message doesn't go to the serial console and > after the patch the message indeed arrives on the early serial console > - or something like that.
I have tested this patch when i wrote it and early_printk does not print anything before the parse_early_param. But i don't know how to show this in code in a correct way. Maybe we should to give back early_printk call which i removed in the previous patch (https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=91d8f0416f3989e248d3a3d3efb821eda10a85d2)?
Any one another question about this. I submited patch only for head64.c and it does not affect kernel for i386, because i'm not sure where is the best place to setup earlyprintk in the head32.c. I thought to put it in the start of i386_start_kernel(void) (from head32.c) but not sure about it.
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