From: Lucas Stach <l.stach@pengutronix.de> To: Russell King - ARM Linux <linux@arm.linux.org.uk> Cc: Tony Lindgren <tony@atomide.com>, Hauke Mehrtens <hauke@hauke-m.de>, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, patchwork-lst@pengutronix.de Subject: Re: [PATCH v2 1/3] ARM: catch pending imprecise abort on unmask Date: Fri, 16 Oct 2015 10:21:44 +0200 [thread overview] Message-ID: <1444983704.3180.4.camel@pengutronix.de> (raw) In-Reply-To: <20151015153246.GH32536@n2100.arm.linux.org.uk> Am Donnerstag, den 15.10.2015, 16:32 +0100 schrieb Russell King - ARM Linux: > 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 <l.stach@pengutronix.de> > > Much better. Please feel free to add it to the patch system, thanks. > Do you feel like taking patches 2 and 3 through your tree too, given that they are already acked by the platform maintainers, or should they pick them up themselves? > I think, given that the original seems to be breaking platforms, this > patch needs to go into -rc kernels, right? > No, the original patch is only queued for 4.4, so the regression is only in -next. This patch only needs to make it into your 4.4 pull request. Thanks, Lucas -- Pengutronix e.K. | Lucas Stach | Industrial Linux Solutions | http://www.pengutronix.de/ |
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From: l.stach@pengutronix.de (Lucas Stach) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 1/3] ARM: catch pending imprecise abort on unmask Date: Fri, 16 Oct 2015 10:21:44 +0200 [thread overview] Message-ID: <1444983704.3180.4.camel@pengutronix.de> (raw) In-Reply-To: <20151015153246.GH32536@n2100.arm.linux.org.uk> Am Donnerstag, den 15.10.2015, 16:32 +0100 schrieb Russell King - ARM Linux: > 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 <l.stach@pengutronix.de> > > Much better. Please feel free to add it to the patch system, thanks. > Do you feel like taking patches 2 and 3 through your tree too, given that they are already acked by the platform maintainers, or should they pick them up themselves? > I think, given that the original seems to be breaking platforms, this > patch needs to go into -rc kernels, right? > No, the original patch is only queued for 4.4, so the regression is only in -next. This patch only needs to make it into your 4.4 pull request. Thanks, Lucas -- Pengutronix e.K. | Lucas Stach | Industrial Linux Solutions | http://www.pengutronix.de/ |
next prev parent reply other threads:[~2015-10-16 8:21 UTC|newest] Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-10-15 10:32 [PATCH v2 0/3] ARM: handle imprecise aborts from firmware in common code Lucas Stach 2015-10-15 10:32 ` Lucas Stach 2015-10-15 10:32 ` [PATCH v2 1/3] ARM: catch pending imprecise abort on unmask Lucas Stach 2015-10-15 10:32 ` Lucas Stach 2015-10-15 15:32 ` Russell King - ARM Linux 2015-10-15 15:32 ` Russell King - ARM Linux 2015-10-15 15:39 ` Tony Lindgren 2015-10-15 15:39 ` Tony Lindgren 2015-10-15 16:06 ` Russell King - ARM Linux 2015-10-15 16:06 ` Russell King - ARM Linux 2015-10-15 16:23 ` Tony Lindgren 2015-10-15 16:23 ` Tony Lindgren 2015-10-16 8:21 ` Lucas Stach [this message] 2015-10-16 8:21 ` Lucas Stach 2015-10-19 12:41 ` Lucas Stach 2015-10-19 12:41 ` Lucas Stach 2015-10-15 10:32 ` [PATCH v2 2/3] ARM: OMAP2+: remove custom abort handler for t410 Lucas Stach 2015-10-15 10:32 ` Lucas Stach 2015-11-12 13:32 ` Lucas Stach 2015-11-12 13:32 ` Lucas Stach 2015-11-12 17:51 ` Tony Lindgren 2015-11-12 17:51 ` Tony Lindgren 2015-10-15 10:32 ` [PATCH v2 3/3] ARM: BCM5301X: remove workaround imprecise abort fault handler Lucas Stach 2015-10-15 10:32 ` Lucas Stach 2015-11-12 13:37 ` Lucas Stach 2015-11-12 17:54 ` Hauke Mehrtens 2015-11-25 0:01 ` Florian Fainelli 2015-11-25 0:01 ` Florian Fainelli 2015-10-16 19:11 ` [PATCH v2 0/3] ARM: handle imprecise aborts from firmware in common code Tyler Baker 2015-10-16 19:11 ` Tyler Baker
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