Date: Sat, 15 Nov 2014 10:57:55 -0800 From: Alfred Perlstein <bright@mu.org> To: freebsd-current@freebsd.org, Steve Kargl <sgk@troutmask.apl.washington.edu> Subject: Re: Finding a rogue src/sys commit with bisection? Message-ID: <5467A233.1040002@mu.org> In-Reply-To: <20141115185226.GA30440@troutmask.apl.washington.edu> References: <20141115184332.GA30344@troutmask.apl.washington.edu> <20141115184609.GB22467@dft-labs.eu> <20141115185226.GA30440@troutmask.apl.washington.edu>
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On 11/15/14, 10:52 AM, Steve Kargl wrote: > On Sat, Nov 15, 2014 at 07:46:09PM +0100, Mateusz Guzik wrote: >> On Sat, Nov 15, 2014 at 10:43:32AM -0800, Steve Kargl wrote: >>> Before I totally hose by /usr/src directory, does anyone >>> have some guidelines on doing a binary search for a rogue >>> commit in /usr/src/sys?. Either cam or usb (or acpi?) has >>> broken the ability to remove a external USB device once it >>> is plugged into a usb port on my Dell Latitude D530 laptop. >>> I know that a good kernel can be built with r271273 and >>> a bad kernel comes from (nearly) top of tree at r274456. >>> >>> I assume I need to do somthing along the lines >>> >>> % cd /usr/src/sys >>> % svn merge -r 274456:272864 (half way point between good and bad) >>> (build kernel and test) >>> % cd /usr/src/sys >>> % svn revert -R . >>> (assume 272864 builds working kernel) >>> % svn merge -r 274456:273660 (1/2 point between 272864 and 274456). >>> >> http://search.cpan.org/dist/App-SVN-Bisect/bin/svn-bisect >> > There's no instructions on how to install it. > >> In absolutely worst case yu can check out git tree and bisect that :-> >> > Nope. Learning how to use git and github is well beyond any interest > I have. I just sent you a workflow that will take you about 10 minutes to sort out for git. If you want reply in private and I can send you my phone number to show how if you get stuck. -Alfred
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