From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: Kernel related (?) user space crash at ARM11 MPCore
Date: Mon, 21 Sep 2009 09:54:25 +0100 [thread overview]
Message-ID: <20090921085425.GC27357@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1253522944.1541.3.camel@pc1117.cambridge.arm.com>
On Mon, Sep 21, 2009 at 09:49:04AM +0100, Catalin Marinas wrote:
> On Mon, 2009-09-21 at 09:31 +0100, Jamie Lokier wrote:
> > I expect the behaviour is the same as that toolchain which modifies
> > instructions in the ELF PLT. (Which, by the way, an ARM FDPIC-ELF
> > for no-MMU I've been working on also does).
>
> In this thread, the dynamic linker only writes data. The CoW mechanism
> has the side-effect of incoherent I-D caches.
As I already said, that is not really the problem, otherwise all ARMv6
CPUs would fail to work. This is clearly not the case. The problem is
the data sitting in the data cache with write allocate caches.
The instruction cache issue is an entirely separate problem.
next prev parent reply other threads:[~2009-09-21 8:54 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4A7AEEB6.5060903@googlemail.com>
[not found] ` <1250184014.14019.40.camel@pc1117.cambridge.arm.com>
[not found] ` <1250501311.9858.24.camel@pc1117.cambridge.arm.com>
[not found] ` <20090817140422.GA10764@n2100.arm.linux.org.uk>
2009-08-29 12:27 ` Kernel related (?) user space crash at ARM11 MPCore Catalin Marinas
2009-08-31 8:30 ` Catalin Marinas
2009-09-07 15:29 ` Catalin Marinas
2009-09-07 15:56 ` Dirk Behme
2009-09-07 16:43 ` Catalin Marinas
2009-09-07 17:31 ` Mikael Pettersson
2009-09-07 21:40 ` Catalin Marinas
2009-09-03 11:58 ` Dirk Behme
[not found] ` <1250529916.11185.80.camel@pc1117.cambridge.arm.com>
[not found] ` <20090919224022.GA738@n2100.arm.linux.org.uk>
[not found] ` <1253435940.498.15.camel@pc1117.cambridge.arm.com>
2009-09-20 9:31 ` Russell King - ARM Linux
2009-09-20 19:02 ` Russell King - ARM Linux
2009-09-20 22:46 ` Catalin Marinas
2009-09-21 8:31 ` Jamie Lokier
2009-09-21 8:41 ` Russell King - ARM Linux
2009-09-21 9:41 ` Jamie Lokier
2009-09-21 10:08 ` Catalin Marinas
2009-09-21 8:49 ` Catalin Marinas
2009-09-21 8:54 ` Russell King - ARM Linux [this message]
2009-09-21 9:44 ` Catalin Marinas
2009-09-21 10:07 ` Russell King - ARM Linux
2009-09-21 10:42 ` Catalin Marinas
2009-09-21 20:10 ` Jamie Lokier
2009-09-21 21:26 ` Russell King - ARM Linux
2009-09-21 22:14 ` Catalin Marinas
2009-09-21 22:25 ` Jamie Lokier
2009-09-22 8:43 ` Catalin Marinas
2009-09-21 21:58 ` Catalin Marinas
2009-09-21 22:12 ` Jamie Lokier
2009-09-21 22:31 ` Russell King - ARM Linux
2009-09-21 22:34 ` Catalin Marinas
2009-09-21 21:38 ` Russell King - ARM Linux
2009-09-21 22:28 ` Catalin Marinas
2009-09-21 22:37 ` Jamie Lokier
2009-09-21 22:33 ` Jamie Lokier
2009-09-22 9:21 ` Catalin Marinas
2009-09-22 10:19 ` Catalin Marinas
2009-09-22 17:17 ` Catalin Marinas
2009-09-23 6:03 ` Dirk Behme
2009-09-23 9:13 ` Catalin Marinas
2009-09-23 10:38 ` Catalin Marinas
2009-09-23 12:12 ` Mikael Pettersson
2009-09-23 12:42 ` Russell King - ARM Linux
2009-09-23 12:51 ` Catalin Marinas
2009-09-23 12:55 ` Catalin Marinas
2009-10-15 14:57 ` Russell King - ARM Linux
2009-10-15 15:20 ` Catalin Marinas
2009-10-15 15:28 ` Russell King - ARM Linux
2009-10-15 15:56 ` Catalin Marinas
2009-10-20 11:39 ` Catalin Marinas
2009-10-25 13:39 ` Russell King - ARM Linux
2009-10-26 18:40 ` Catalin Marinas
2009-10-25 14:48 ` Russell King - ARM Linux
2009-10-26 18:45 ` Catalin Marinas
2009-10-26 19:17 ` Russell King - ARM Linux
2009-10-15 15:48 ` Dirk Behme
2009-10-15 15:53 ` Catalin Marinas
2009-10-25 13:04 ` Russell King - ARM Linux
2009-10-26 18:18 ` Catalin Marinas
2009-09-20 22:02 ` Catalin Marinas
2009-09-22 5:44 ` Shilimkar, Santosh
2009-09-22 9:01 ` Catalin Marinas
2009-09-22 9:34 ` Shilimkar, Santosh
[not found] ` <1249981883.27150.14.camel@pc1117.cambridge.arm.com>
[not found] ` <4A818CBC.8040000@googlemail.com>
[not found] ` <1250006770.30628.1.camel@pc1117.cambridge.arm.com>
[not found] ` <4A819C54.3080606@googlemail.com>
[not found] ` <1250009043.30628.9.camel@pc1117.cambridge.arm.com>
[not found] ` <87ab25vazg.fsf@brigitte.kvy.fi>
[not found] ` <1250080338.20332.32.camel@pc1117.cambridge.arm.com>
[not found] ` <87k518yc8a.fsf@brigitte.kvy.fi>
2009-09-11 9:21 ` smsc911x.c driver and SMP (was Re: Kernel related (?) user space crash at ARM11 MPCore) Catalin Marinas
2009-09-11 12:55 ` Bill Gatliff
2009-09-11 13:00 ` Catalin Marinas
2009-09-11 15:20 ` Bill Gatliff
2009-09-11 16:06 ` Catalin Marinas
2009-10-06 6:12 ` smsc911x.c driver and SMP Antti P Miettinen
2010-08-31 0:07 ` Shinya Kuribayashi
2010-08-31 6:22 ` Antti P Miettinen
2010-08-31 9:10 ` Shinya Kuribayashi
2010-08-31 8:33 ` Catalin Marinas
2010-08-31 8:42 ` Shinya Kuribayashi
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