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Date: Thu, 7 Jan 2021 13:37:47 +0000 From: Russell King - ARM Linux admin <linux@...linux.org.uk> To: Arnd Bergmann <arnd@...nel.org> Cc: Will Deacon <will@...nel.org>, linux-toolchains@...r.kernel.org, Mark Rutland <mark.rutland@....com>, Theodore Ts'o <tytso@....edu>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Andreas Dilger <adilger.kernel@...ger.ca>, Ext4 Developers List <linux-ext4@...r.kernel.org>, Linux ARM <linux-arm-kernel@...ts.infradead.org> Subject: Re: Aarch64 EXT4FS inode checksum failures - seems to be weak memory ordering issues On Thu, Jan 07, 2021 at 02:16:25PM +0100, Arnd Bergmann wrote: > On Thu, Jan 7, 2021 at 1:47 PM Russell King - ARM Linux admin > <linux@...linux.org.uk> wrote: > > > Arnd has found via bisecting gcc: > > > > 7e8c2bd54af ("[AArch64] fix unsafe access to deallocated stack") > > > > which seems to be https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63293 > > > > That seems to suggest that gcc-5.0.0 is also affected. > > > > Looking at the changelog in Debian's gcc-8.3 packages, this doesn't > > feature, so it's not easy just to look at the changelogs to work out > > which versions are affected. > > I checked the history to confirm that all gcc-5 releases (5.0.x is pre-release) > and later have the fix. > > The gcc bugzilla mentions backports into gcc-linaro, but I do not see > them in my git history. So, do we raise the minimum gcc version for the kernel as a whole to 5.1 or just for aarch64? -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
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