From: jeremy.linton@arm.com (Jeremy Linton)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm64: Add config to limit user space to 47bits
Date: Thu, 14 Jul 2016 13:07:30 -0500 [thread overview]
Message-ID: <e48483fc-8dda-3fe2-c3fe-46b93aa41973@arm.com> (raw)
In-Reply-To: <e24481b9-fb6a-aead-a72b-43b7d561b940@suse.de>
On 07/14/2016 02:14 AM, Alexander Graf wrote:
>
> On 14.07.16 09:03, Zheng Xu wrote:
>> LuaJIT also fix the 48VA issue by allocating heap memory below 47 bits.
>>
>> For mozjs issue, if there are pointers to .rodata, it can be a problem. Does it happen on master and do we have any case to reproduce the issue so that I can take a look?
>
> mozjs is fixed with your patch. I backported it to all of the ancient
> versions of mozjs, so we're probably good there. Though every distro
> will have to redo that work in their own trees, because older versions
> of mozjs are no longer maintained upstream. If you want to be a hero,
> you can try to port polkitd and gnome to use more recent versions of
> mozjs ;). Or maybe they can already and we just messed up packaging.
I have a polkit built against mozjs45, getting it to work on the other
hand is the yak of the day...
WARNING: multiple messages have this Message-ID (diff)
From: Jeremy Linton <jeremy.linton@arm.com>
To: Alexander Graf <agraf@suse.de>, Zheng Xu <Zheng.Xu@arm.com>,
Steve Capper <Steve.Capper@arm.com>
Cc: Mark Rutland <Mark.Rutland@arm.com>,
"mbrugger@suse.com" <mbrugger@suse.com>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Catalin Marinas <Catalin.Marinas@arm.com>,
Will Deacon <Will.Deacon@arm.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Stuart Monteith <Stuart.Monteith@arm.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH] arm64: Add config to limit user space to 47bits
Date: Thu, 14 Jul 2016 13:07:30 -0500 [thread overview]
Message-ID: <e48483fc-8dda-3fe2-c3fe-46b93aa41973@arm.com> (raw)
In-Reply-To: <e24481b9-fb6a-aead-a72b-43b7d561b940@suse.de>
On 07/14/2016 02:14 AM, Alexander Graf wrote:
>
> On 14.07.16 09:03, Zheng Xu wrote:
>> LuaJIT also fix the 48VA issue by allocating heap memory below 47 bits.
>>
>> For mozjs issue, if there are pointers to .rodata, it can be a problem. Does it happen on master and do we have any case to reproduce the issue so that I can take a look?
>
> mozjs is fixed with your patch. I backported it to all of the ancient
> versions of mozjs, so we're probably good there. Though every distro
> will have to redo that work in their own trees, because older versions
> of mozjs are no longer maintained upstream. If you want to be a hero,
> you can try to port polkitd and gnome to use more recent versions of
> mozjs ;). Or maybe they can already and we just messed up packaging.
I have a polkit built against mozjs45, getting it to work on the other
hand is the yak of the day...
next prev parent reply other threads:[~2016-07-14 18:07 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-13 15:42 [PATCH] arm64: Add config to limit user space to 47bits Alexander Graf
2016-07-13 15:42 ` Alexander Graf
2016-07-13 15:59 ` Ard Biesheuvel
2016-07-13 15:59 ` Ard Biesheuvel
2016-07-13 16:14 ` Alexander Graf
2016-07-13 16:14 ` Alexander Graf
2016-07-14 1:08 ` Steve Capper
2016-07-14 1:08 ` Steve Capper
2016-07-14 6:38 ` Alexander Graf
2016-07-14 6:38 ` Alexander Graf
2016-07-14 7:03 ` Zheng Xu
2016-07-14 7:03 ` Zheng Xu
2016-07-14 7:14 ` Alexander Graf
2016-07-14 7:14 ` Alexander Graf
2016-07-14 7:49 ` Zheng Xu
2016-07-14 7:49 ` Zheng Xu
2016-07-14 8:01 ` Alexander Graf
2016-07-14 8:01 ` Alexander Graf
2016-07-14 18:07 ` Jeremy Linton [this message]
2016-07-14 18:07 ` Jeremy Linton
2016-07-14 15:17 ` Ard Biesheuvel
2016-07-14 15:17 ` Ard Biesheuvel
2016-07-13 16:10 ` Mark Rutland
2016-07-13 16:10 ` Mark Rutland
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