From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexey Brodkin Date: Mon, 14 Nov 2016 14:34:01 +0000 Subject: [Buildroot] [PATCH] config: bump linux kernel to 4.8.6 in synopsys defconfigs In-Reply-To: <20161114150740.394bdd02@free-electrons.com> References: <1478793207-31255-1-git-send-email-vzakhar@synopsys.com> <20161111151832.1649d24e@free-electrons.com> <1479126748.3874.28.camel@synopsys.com> <20161114150740.394bdd02@free-electrons.com> Message-ID: <1479133987.4408.48.camel@synopsys.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Hi Thomas, On Mon, 2016-11-14 at 15:07 +0100, Thomas Petazzoni wrote: > Hello, > > On Mon, 14 Nov 2016 12:32:29 +0000, Vlad Zakharov wrote: > > > > > We apologize for coming late with that update. > > But could you please apply it on master as it is important for us to come up with latest kernel in upcoming > > Buildroot release. > > Updated configs were build- and run tested on corresponding platforms, so there shouldn't be any regressions there. > > Once -rc1 has passed, we don't apply version bumps (be it to packages > or defconfigs), unless they fix a specific issue. > > What is the issue with having this update part of 2017.02 ? Obviously since we live in upstream everything that could not be applied to stable branches (i.e. is not a trivial fix and longer than 200 lines) get merged in newer kernels. In particular following commit was not accepted in backports: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=840c054fd0efb048df6fceb0c46385ec5b66dfe6 See discussion here?http://www.spinics.net/lists/stable/msg143544.html The problem is in GCC v6.x newer ABI is used for ARCv2 and so only kernels v4.8+ will work. I.e. existing 4.7 will fail to run user-space apps built with GCC 6.x. Indeed we may add mentioned off-the-tree patch in BR for 4.7 but I'd rather bump kernel version here with which we get more fixes across the tree for our users. -Alexey