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Date:   Thu, 22 Feb 2018 18:27:10 +0100
From:   Fredrik Noring <noring@nocrew.org>
To:     "Maciej W. Rozycki" <macro@mips.com>
Cc:     =?utf-8?Q?J=C3=BCrgen?= Urban <JuergenUrban@gmx.de>,
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Subject: Re: [RFC v2] MIPS: R5900: Workaround exception NOP execution bug
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Hi Maciej,

>  Do you use the netconsole then too?  Using a USB serial port adapter 
> would be an alternative, although not a very powerful one either, because 
> you need to have many parts of the OS initialised before you can get to 
> such a port.

No, I haven't used netconsole, but I do have a frame buffer. There have been
a few very early kernel crashes during the porting from v2.6 to v4.15. All
of them could be identified to a single commit by bisection, and then it was
easy to find a solution to proceed, fortunately.

Eventually I'd like to get kexec working. I suspect it could be somewhat
tricky to debug though.

Fredrik