From: Russell King - ARM Linux admin <linux@armlinux.org.uk>
To: Giancarlo Ferrari <giancarlo.ferrari89@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
linux-kernel@vger.kernel.org, penberg@kernel.org,
geert@linux-m68k.org, linux-arm-kernel@lists.infradead.org,
akpm@linux-foundation.org, rppt@kernel.org,
giancarlo.ferrari@nokia.com
Subject: Re: [PATCH] ARM: kexec: Fix panic after TLB are invalidated
Date: Mon, 1 Feb 2021 20:16:33 +0000 [thread overview]
Message-ID: <20210201201633.GJ1463@shell.armlinux.org.uk> (raw)
In-Reply-To: <20210201200734.GC15399@p4>
On Mon, Feb 01, 2021 at 08:07:37PM +0000, Giancarlo Ferrari wrote:
> Hi,
Hi,
> Why we should align 3 ? For the fncpy I suppose.
Slightly arbitary really - it gives a nice 8-byte alignment to the data.
.align 2 would also be sufficient.
> I don't know now how to proceed now, as you (Mark and you) do completely
> the patch.
Please can you test my patch and let us know if it solves your problem
(or even if it works! I haven't tested it beyond build-testing.)
> You see is my first kernel patch submission :) .
Yay. Sorry for giving you a different patch - Mark is quite right that
there's a better solution to this problem, which is eliminating the
set_kernel_text_rw() call. The only reason I cooked up the patch was
doing that would be more in-depth (as you can see from the increased
size of the patch.)
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
WARNING: multiple messages have this Message-ID (diff)
From: Russell King - ARM Linux admin <linux@armlinux.org.uk>
To: Giancarlo Ferrari <giancarlo.ferrari89@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
linux-kernel@vger.kernel.org, penberg@kernel.org,
geert@linux-m68k.org, rppt@kernel.org, akpm@linux-foundation.org,
linux-arm-kernel@lists.infradead.org,
giancarlo.ferrari@nokia.com
Subject: Re: [PATCH] ARM: kexec: Fix panic after TLB are invalidated
Date: Mon, 1 Feb 2021 20:16:33 +0000 [thread overview]
Message-ID: <20210201201633.GJ1463@shell.armlinux.org.uk> (raw)
In-Reply-To: <20210201200734.GC15399@p4>
On Mon, Feb 01, 2021 at 08:07:37PM +0000, Giancarlo Ferrari wrote:
> Hi,
Hi,
> Why we should align 3 ? For the fncpy I suppose.
Slightly arbitary really - it gives a nice 8-byte alignment to the data.
.align 2 would also be sufficient.
> I don't know now how to proceed now, as you (Mark and you) do completely
> the patch.
Please can you test my patch and let us know if it solves your problem
(or even if it works! I haven't tested it beyond build-testing.)
> You see is my first kernel patch submission :) .
Yay. Sorry for giving you a different patch - Mark is quite right that
there's a better solution to this problem, which is eliminating the
set_kernel_text_rw() call. The only reason I cooked up the patch was
doing that would be more in-depth (as you can see from the increased
size of the patch.)
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-02-01 20:17 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-01 0:44 [PATCH] ARM: kexec: Fix panic after TLB are invalidated Giancarlo Ferrari
2021-02-01 0:44 ` Giancarlo Ferrari
2021-02-01 11:34 ` Russell King - ARM Linux admin
2021-02-01 11:34 ` Russell King - ARM Linux admin
2021-02-01 12:47 ` Mark Rutland
2021-02-01 12:47 ` Mark Rutland
2021-02-01 13:03 ` Russell King - ARM Linux admin
2021-02-01 13:03 ` Russell King - ARM Linux admin
2021-02-01 13:57 ` Mark Rutland
2021-02-01 13:57 ` Mark Rutland
2021-02-01 16:08 ` Russell King - ARM Linux admin
2021-02-01 16:08 ` Russell King - ARM Linux admin
2021-02-01 16:32 ` Mark Rutland
2021-02-01 16:32 ` Mark Rutland
2021-02-01 16:37 ` Russell King - ARM Linux admin
2021-02-01 16:37 ` Russell King - ARM Linux admin
2021-02-01 20:07 ` Giancarlo Ferrari
2021-02-01 20:07 ` Giancarlo Ferrari
2021-02-01 20:16 ` Russell King - ARM Linux admin [this message]
2021-02-01 20:16 ` Russell King - ARM Linux admin
2021-02-01 22:18 ` Giancarlo Ferrari
2021-02-01 22:18 ` Giancarlo Ferrari
2021-02-04 23:48 ` Giancarlo Ferrari
2021-02-04 23:48 ` Giancarlo Ferrari
2021-02-05 0:18 ` Russell King - ARM Linux admin
2021-02-05 0:18 ` Russell King - ARM Linux admin
2021-02-05 0:40 ` Giancarlo Ferrari
2021-02-05 0:40 ` Giancarlo Ferrari
2021-02-05 0:45 ` Giancarlo Ferrari
2021-02-05 0:45 ` Giancarlo Ferrari
2021-02-05 9:44 ` Russell King - ARM Linux admin
2021-02-05 9:44 ` Russell King - ARM Linux admin
2021-02-05 14:36 ` Giancarlo Ferrari
2021-02-05 14:36 ` Giancarlo Ferrari
2021-02-01 14:39 ` Giancarlo Ferrari
2021-02-01 14:39 ` Giancarlo Ferrari
2021-02-01 15:30 ` Mark Rutland
2021-02-01 15:30 ` Mark Rutland
2021-02-01 19:09 ` Giancarlo Ferrari
2021-02-01 19:09 ` Giancarlo Ferrari
-- strict thread matches above, loose matches on Subject: below --
2021-01-12 16:49 Giancarlo Ferrari
2021-01-12 16:49 ` Giancarlo Ferrari
2021-02-01 10:10 ` Giancarlo Ferrari
2021-02-01 10:10 ` Giancarlo Ferrari
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