From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Jon Hunter <jonathanh@nvidia.com>
Cc: Ard Biesheuvel <ardb@kernel.org>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
Nicolas Pitre <nico@fluxnic.net>, Arnd Bergmann <arnd@arndb.de>,
Kees Cook <keescook@chromium.org>,
Keith Packard <keithpac@amazon.com>,
Linus Walleij <linus.walleij@linaro.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Tony Lindgren <tony@atomide.com>,
Krzysztof Kozlowski <krzk@kernel.org>,
Linux Samsung SOC <linux-samsung-soc@vger.kernel.org>,
Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>
Subject: Re: [PATCH v4 7/7] ARM: implement support for vmap'ed stacks
Date: Wed, 5 Jan 2022 13:53:08 +0000 [thread overview]
Message-ID: <YdWixPrYkR1JoFHW@shell.armlinux.org.uk> (raw)
In-Reply-To: <4ae3e371-68d0-64d7-713e-88af45875b3f@nvidia.com>
On Wed, Jan 05, 2022 at 11:33:48AM +0000, Jon Hunter wrote:
> On 05/01/2022 11:12, Ard Biesheuvel wrote:
> > Thanks for the report.
> >
> > It would be helpful if you could provide some more context:
> > - does it happen on a LPAE build too?
> > - does it only happen on SMP capable systems?
>
> These are all SMP systems.
>
> > - does it reproduce on such systems when using only a single CPU?
> > (i.e., pass 'nosmp' on the kernel command line)
>
> I would need to try this.
Please note that I want an answer on the vmap stack patches by the
end of today (UK time - so about five hours after this email has
been sent) as we have only tonight and tomorrow's linux-next before
the probable opening of the merge window.
The options are:
1. The problem gets fixed today and I merge the fix today so it can
get tested in linux-next over the next few days by the various
build farms and test setups.
2. We postpone the merging of this until the very end of the merge
window to give more time to sort out this mess - but what it
means is keeping it in linux-next and keeping various platforms
broken during that period. However, this is really not fair for
other people, and some would say this isn't even an option.
3. We drop the entire series for this merge window, meaning it gets
dropped from linux-next, and have another go for the neext merge
window.
Sorry for being so demanding, but we're far too close to the merge
window to be trying to debug a feature that is clearly causing a
regression for several platforms.
--
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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next prev parent reply other threads:[~2022-01-05 13:55 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-22 9:28 [PATCH v4 0/7] ARM: add vmap'ed stack support Ard Biesheuvel
2021-11-22 9:28 ` [PATCH v4 1/7] ARM: memcpy: use frame pointer as unwind anchor Ard Biesheuvel
2021-11-22 9:28 ` [PATCH v4 2/7] ARM: memmove: " Ard Biesheuvel
2021-11-22 9:28 ` [PATCH v4 3/7] ARM: memset: clean up unwind annotations Ard Biesheuvel
2021-11-22 9:28 ` [PATCH v4 4/7] ARM: unwind: disregard unwind info before stack frame is set up Ard Biesheuvel
2021-11-22 9:28 ` [PATCH v4 5/7] ARM: switch_to: clean up Thumb2 code path Ard Biesheuvel
2021-11-22 9:28 ` [PATCH v4 6/7] ARM: entry: rework stack realignment code in svc_entry Ard Biesheuvel
2021-11-22 9:28 ` [PATCH v4 7/7] ARM: implement support for vmap'ed stacks Ard Biesheuvel
[not found] ` <CGME20211221103854eucas1p2592e38fcc84c1c3506fce87f1dab6739@eucas1p2.samsung.com>
2021-12-21 10:38 ` Marek Szyprowski
2021-12-21 10:42 ` Krzysztof Kozlowski
2021-12-21 10:46 ` Marek Szyprowski
2021-12-21 10:44 ` Ard Biesheuvel
2021-12-21 11:15 ` Marek Szyprowski
2021-12-21 13:34 ` Ard Biesheuvel
2021-12-21 13:51 ` Marek Szyprowski
2021-12-21 16:20 ` Ard Biesheuvel
2021-12-21 21:56 ` Marek Szyprowski
2021-12-23 14:23 ` Ard Biesheuvel
2021-12-28 14:39 ` Geert Uytterhoeven
2021-12-28 16:12 ` Geert Uytterhoeven
2021-12-28 16:27 ` Ard Biesheuvel
2022-01-05 11:08 ` Jon Hunter
2022-01-05 11:12 ` Ard Biesheuvel
2022-01-05 11:33 ` Jon Hunter
2022-01-05 13:53 ` Russell King (Oracle) [this message]
2022-01-05 16:49 ` Jon Hunter
2022-01-05 17:02 ` Ard Biesheuvel
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