Date: Tue, 30 Sep 2014 22:03:09 -0700 From: Adrian Chadd <adrian@freebsd.org> To: "O'Connor, Daniel" <Daniel.O'Connor@emc.com> Cc: =?UTF-8?Q?Jos=C3=A9_P=C3=A9rez_Arauzo?= <fbl@aoek.com>, FreeBSD Current <freebsd-current@freebsd.org>, Benjamin Kaduk <kaduk@mit.edu>, Garrett Cooper <yaneurabeya@gmail.com> Subject: Re: What do you use for kernel debugging? Message-ID: <CAJ-VmomrTiyUBr%2BpwtRjcUAanwRBDhvMr65rXFpw9nUkFFYm0A@mail.gmail.com> In-Reply-To: <90CE0701-F1CB-41DF-B3D2-87816DC03DF9@emc.com> References: <20140928071641.M7664@beckpeccoz.com> <alpine.GSO.1.10.1409281553060.21571@multics.mit.edu> <20140929003358.M78145@aoek.com> <B3589A0F-AF06-4F7D-80C9-F614CFA21370@gmail.com> <542AC1C8.9030101@freebsd.org> <90CE0701-F1CB-41DF-B3D2-87816DC03DF9@emc.com>
next in thread | previous in thread | raw e-mail | index | archive | help
There's also something for XHCI. Please please write it for freebsd. :) -a On 30 September 2014 21:45, O'Connor, Daniel <Daniel.O'Connor@emc.com> wrot= e: > > On 1 Oct 2014, at 0:14, Julian Elischer <julian@freebsd.org> wrote: >> Unfortunately you can't use a USB serial as it requires the USB stack >> be working before it can be used.. >> similar with ethernet connected debugging which requires that the >> driver for the ethernet hardware support it. >> (which why we don't have it in the tree though it has been done >> several times in the past). > > There IS a USB debug standard, Linux has some code to support it. > > I am not sure what percentage of hardware has it hooked up though (the ho= st controller has a designated debug port but it could physically be anythi= ng). > > http://www.coreboot.org/EHCI_Debug_Port > > The hardware is bit more expensive than a null modem or firewire cable th= ough :( > > Regards, > Daniel O=E2=80=99Connor > > Senior Software Engineer > Isilon Platforms Team > > > > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org= "
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAJ-VmomrTiyUBr%2BpwtRjcUAanwRBDhvMr65rXFpw9nUkFFYm0A>