From: tony@atomide.com (Tony Lindgren) Date: Thu, 15 Oct 2015 08:39:15 -0700 Subject: [PATCH v2 1/3] ARM: catch pending imprecise abort on unmask In-Reply-To: <20151015153246.GH32536@n2100.arm.linux.org.uk> References: <1444905142-21500-1-git-send-email-l.stach@pengutronix.de> <1444905142-21500-2-git-send-email-l.stach@pengutronix.de> <20151015153246.GH32536@n2100.arm.linux.org.uk> Message-ID: <20151015153915.GO10113@atomide.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org * Russell King - ARM Linux [151015 08:37]: > On Thu, Oct 15, 2015 at 12:32:20PM +0200, Lucas Stach wrote: > > Install a non-faulting handler just before unmasking imprecise aborts > > and switch back to the regular one after unmasking is done. > > > > This catches any pending imprecise abort that the firmware/bootloader > > may have left behind that would normally crash the kernel at that point. > > As there are apparently a lot of bootlaoders out there that do such a > > thing it makes sense to handle it in the common startup code. > > > > Signed-off-by: Lucas Stach > > Much better. Please feel free to add it to the patch system, thanks. > > I think, given that the original seems to be breaking platforms, this > patch needs to go into -rc kernels, right? Hmm do we still see a trace where the issue happened though with this one? What I though wes something pending from the bootloader, turned out to be a bogus SRAM init code that I was able to easily fix with the trace. Regards, Tony