From: mark.rutland@arm.com (Mark Rutland)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 00/10] arm64: move thread_info off of the task stack
Date: Mon, 24 Oct 2016 18:48:40 +0100 [thread overview]
Message-ID: <20161024174840.GR15620@leverpostej> (raw)
In-Reply-To: <10401f46-cabc-23ec-a448-c377dbce7911@redhat.com>
On Mon, Oct 24, 2016 at 10:38:59AM -0700, Laura Abbott wrote:
> On 10/19/2016 12:10 PM, Mark Rutland wrote:
> >Hi all,
> >
> >Building atop of Andy's work on x86 and generic code, these patches move
> >arm64's thread_info off of the stack and into task_struct. This protects
> >thread_info from corruption in the face of stack overflow, and serves as
> >a step towards fully robust stack overflow handling, which will be
> >addressed by subsequent patches.
> >
> >These patches are based atop of a preparatory series [1] (itself based
> >on v4.9-rc1) that's also necessary for s390. I've placed those patches
> >in a branch [2] on my kernel.org repo, along with this series [3]. I'm
> >hoping that the prep work will be able to become a stable branch/tag
> >soon.
> >
> >I've given the series some light testing on a couple of SMP arm64
> >platforms, but this has yet to see a thorough beating; please do try to
> >make this fall over!
> >
> >Since RFC [4]:
> >* Rely on prior patches to make thread_info arch-specific
> >* Make smp_processor_id() use a per-cpu variable
> >* Split out current_stack_pointer
> >* Make SMP actually work
> >
> >[1] http://lkml.kernel.org/r/1476901693-8492-1-git-send-email-mark.rutland at arm.com
> >[2] https://git.kernel.org/cgit/linux/kernel/git/mark/linux.git/log/?h=core/ti-stack-split
> >[3] https://git.kernel.org/cgit/linux/kernel/git/mark/linux.git/log/?h=arm64/ti-stack-split
> >[4] http://lkml.kernel.org/r/1473947349-14521-1-git-send-email-mark.rutland at arm.com
> I pulled the arm64/ti-stack-split branch on top of a Fedora
> tree and ran back-to-back kernel RPM builds for a long weekend.
> It's still going as of this morning so you can take that as a
>
> Tested-by: Laura Abbott <labbott@redhat.com>
Thanks! That's much appreciated!
Just to check, did you grab the version with entry.S fixes rolled in
(where the head is 657f54256c427fec)?
Thanks,
Mark.
next prev parent reply other threads:[~2016-10-24 17:48 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-19 19:10 [PATCH 00/10] arm64: move thread_info off of the task stack Mark Rutland
2016-10-19 19:10 ` [PATCH 01/10] arm64: thread_info remove stale items Mark Rutland
2016-10-19 19:10 ` [PATCH 02/10] arm64: asm-offsets: remove unused definitions Mark Rutland
2016-10-19 19:10 ` [PATCH 03/10] arm64: factor out current_stack_pointer Mark Rutland
2016-10-19 19:10 ` [PATCH 04/10] arm64: traps: simplify die() and __die() Mark Rutland
2016-10-19 19:10 ` [PATCH 05/10] arm64: prep stack walkers for THREAD_INFO_IN_TASK Mark Rutland
2016-10-19 19:10 ` [PATCH 06/10] arm64: move sp_el0 and tpidr_el1 into cpu_suspend_ctx Mark Rutland
2016-10-19 19:10 ` [PATCH 07/10] arm64: smp: prepare for smp_processor_id() rework Mark Rutland
2016-10-19 19:10 ` [PATCH 08/10] arm64: make cpu number a percpu variable Mark Rutland
2016-10-19 19:10 ` [PATCH 09/10] arm64: assembler: introduce ldr_this_cpu Mark Rutland
2016-10-19 19:10 ` [PATCH 10/10] arm64: split thread_info from task stack Mark Rutland
2016-10-21 14:50 ` James Morse
2016-10-21 15:59 ` Mark Rutland
2016-10-21 17:27 ` Mark Rutland
2016-10-21 16:20 ` Mark Rutland
2016-10-24 17:38 ` [PATCH 00/10] arm64: move thread_info off of the " Laura Abbott
2016-10-24 17:48 ` Mark Rutland [this message]
2016-10-24 17:58 ` Laura Abbott
2016-10-24 18:09 ` Mark Rutland
2016-10-24 18:15 ` Mark Rutland
2016-10-24 18:18 ` Kees Cook
2016-10-25 10:05 ` Mark Rutland
2016-10-26 0:46 ` Laura Abbott
2016-10-26 9:55 ` Mark Rutland
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