From: Al Viro <viro@ZenIV.linux.org.uk>
To: Daniel Mack <zonque@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Russell King - ARM Linux <linux@arm.linux.org.uk>,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Catalin Marinas <catalin.marinas@arm.com>
Subject: Re: [revert request for commit 9fff2fa] Re: [git pull] signals pile 3
Date: Sun, 14 Oct 2012 20:56:11 +0100 [thread overview]
Message-ID: <20121014195611.GA2616@ZenIV.linux.org.uk> (raw)
In-Reply-To: <20121014192402.GZ2616@ZenIV.linux.org.uk>
On Sun, Oct 14, 2012 at 08:24:03PM +0100, Al Viro wrote:
> Russell, could you recall what those had been about? I'm not sure if that
> had been oopsable that far back (again, oops scenario is userland stack
> page getting swapped out before we get to start_thread(), leading to
> direct read from an absent page in start_thread() by plain ldr, without
> anything in exception table about that insn), but it looks very odd
> regardless of that problem.
BTW, arm64 has copied that logics, so it also seems to be unsafe and very
odd - there we definitely have only ELF to cope with. arm64 folks Cc'd...
WARNING: multiple messages have this Message-ID (diff)
From: viro@ZenIV.linux.org.uk (Al Viro)
To: linux-arm-kernel@lists.infradead.org
Subject: [revert request for commit 9fff2fa] Re: [git pull] signals pile 3
Date: Sun, 14 Oct 2012 20:56:11 +0100 [thread overview]
Message-ID: <20121014195611.GA2616@ZenIV.linux.org.uk> (raw)
In-Reply-To: <20121014192402.GZ2616@ZenIV.linux.org.uk>
On Sun, Oct 14, 2012 at 08:24:03PM +0100, Al Viro wrote:
> Russell, could you recall what those had been about? I'm not sure if that
> had been oopsable that far back (again, oops scenario is userland stack
> page getting swapped out before we get to start_thread(), leading to
> direct read from an absent page in start_thread() by plain ldr, without
> anything in exception table about that insn), but it looks very odd
> regardless of that problem.
BTW, arm64 has copied that logics, so it also seems to be unsafe and very
odd - there we definitely have only ELF to cope with. arm64 folks Cc'd...
next prev parent reply other threads:[~2012-10-14 19:56 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-13 0:53 [git pull] signals pile 3 Al Viro
2012-10-14 15:35 ` Daniel Mack
2012-10-14 15:35 ` Daniel Mack
2012-10-14 16:40 ` [revert request for commit 9fff2fa] " Al Viro
2012-10-14 16:40 ` Al Viro
2012-10-14 16:44 ` Daniel Mack
2012-10-14 16:44 ` Daniel Mack
2012-10-14 17:26 ` Al Viro
2012-10-14 17:26 ` Al Viro
2012-10-14 17:55 ` Al Viro
2012-10-14 17:55 ` Al Viro
2012-10-14 18:21 ` Daniel Mack
2012-10-14 18:21 ` Daniel Mack
2012-10-14 19:06 ` Al Viro
2012-10-14 19:06 ` Al Viro
2012-10-14 19:24 ` Al Viro
2012-10-14 19:24 ` Al Viro
2012-10-14 19:56 ` Al Viro [this message]
2012-10-14 19:56 ` Al Viro
2012-10-15 16:07 ` Catalin Marinas
2012-10-15 16:07 ` Catalin Marinas
2012-10-15 16:27 ` Al Viro
2012-10-15 16:27 ` Al Viro
2012-10-15 17:06 ` Catalin Marinas
2012-10-15 17:06 ` Catalin Marinas
2012-10-14 20:24 ` Russell King - ARM Linux
2012-10-14 20:24 ` Russell King - ARM Linux
2012-10-14 22:24 ` Russell King - ARM Linux
2012-10-14 22:24 ` Russell King - ARM Linux
2012-10-14 22:39 ` Daniel Mack
2012-10-14 22:39 ` Daniel Mack
2012-10-14 23:16 ` Russell King - ARM Linux
2012-10-14 23:16 ` Russell King - ARM Linux
2012-10-16 14:04 ` Uwe Kleine-König
2012-10-16 14:04 ` Uwe Kleine-König
2012-10-16 14:05 ` Russell King - ARM Linux
2012-10-16 14:05 ` Russell King - ARM Linux
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