From mboxrd@z Thu Jan 1 00:00:00 1970 From: robert.jarzmik@free.fr (Robert Jarzmik) Date: Thu, 20 Jul 2017 08:57:14 +0200 Subject: ARM: pxa/corgi: armv5te kernel 4.12 fails to decompress compiled with gcc7 In-Reply-To: (Andrea Adami's message of "Wed, 19 Jul 2017 15:13:29 +0200") References: Message-ID: <87a83zsiid.fsf@belgarion.home> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Andrea Adami writes: > Hello, Hi Andrea, I have the same report on userspace side on buildroot from Petr [1], which triggers endless segfaults in userspace (init) with gcc7 while everything is fine with gcc6. I have confirmation on my test farm the problem happens as well. Since debugging in userspace is far easier, I would suggest attacking the debug with Petr on userspace side, and once sorted out, come back to kernel side. Cheers. -- Robert [1] Mail from Petr From: Petr Cvek Subject: cross-gcc To: robert.jarzmik at free.fr Date: Wed, 12 Jul 2017 02:37:35 +0200 (1 week, 1 day, 6 hours ago) Message-ID: User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 Hi, do you still have a PXA27x board? I'm trying to build a rootfs with a new GCC (7.1 from crosstool-ng snapshot a few days ago, buildroot same way) and it keeps segfaulting (busybox, sshd, udevd, Xorg). Do you have the same problem? (seems it does not care for xscale/iwmmxt neither O1/O2/Os, maybe on O0). The GCC 6.x was fine and if i will need to make a bug report I think I will need confirmation.