Date: Sat, 15 Nov 2014 11:48:07 -0800 From: Alfred Perlstein <bright@mu.org> To: Steve Kargl <sgk@troutmask.apl.washington.edu> Cc: freebsd-current@freebsd.org, Ian Lepore <ian@FreeBSD.org> Subject: Re: Finding a rogue src/sys commit with bisection? Message-ID: <5467ADF7.1020503@mu.org> In-Reply-To: <20141115194215.GA30774@troutmask.apl.washington.edu> References: <20141115184332.GA30344@troutmask.apl.washington.edu> <5467A1F2.8000703@mu.org> <20141115190133.GA30576@troutmask.apl.washington.edu> <5467A37B.8010506@mu.org> <1416079949.4781.156.camel@revolution.hippie.lan> <5467ABF5.7070807@mu.org> <20141115194215.GA30774@troutmask.apl.washington.edu>
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On 11/15/14, 11:42 AM, Steve Kargl wrote: > On Sat, Nov 15, 2014 at 11:39:33AM -0800, Alfred Perlstein wrote: >> This is really over the top. >> >> It's not evangelism, the guy asked "how do I do X?" I showed him how to >> do it in a few simple steps. > The guy, that would be me, asked how to do it with svn. > Nope. You showed some svn commands to not do it, you weren't explicit in asking for ways to do it in svn, go ahead, look: ~ % grep -i svn > foo.out 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). Rinse and repeat. .(11:46:36)(alfred@AlfredMacbookAir.local) ~ % cat foo.out % svn merge -r 274456:272864 (half way point between good and bad) % svn revert -R . % svn merge -r 274456:273660 (1/2 point between 272864 and 274456). .(11:46:38)(alfred@AlfredMacbookAir.local) ~ %
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