From mboxrd@z Thu Jan 1 00:00:00 1970 From: viro@ZenIV.linux.org.uk (Al Viro) Date: Sun, 14 Oct 2012 20:56:11 +0100 Subject: [revert request for commit 9fff2fa] Re: [git pull] signals pile 3 In-Reply-To: <20121014192402.GZ2616@ZenIV.linux.org.uk> References: <20121013005334.GM2616@ZenIV.linux.org.uk> <507ADBBB.9090209@gmail.com> <20121014164020.GV2616@ZenIV.linux.org.uk> <20121014172640.GW2616@ZenIV.linux.org.uk> <20121014192402.GZ2616@ZenIV.linux.org.uk> Message-ID: <20121014195611.GA2616@ZenIV.linux.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Sun, Oct 14, 2012 at 08:24:03PM +0100, Al Viro wrote: > Russell, could you recall what those had been about? I'm not sure if that > had been oopsable that far back (again, oops scenario is userland stack > page getting swapped out before we get to start_thread(), leading to > direct read from an absent page in start_thread() by plain ldr, without > anything in exception table about that insn), but it looks very odd > regardless of that problem. BTW, arm64 has copied that logics, so it also seems to be unsafe and very odd - there we definitely have only ELF to cope with. arm64 folks Cc'd...