From: Olaf Kirch <okir@suse.de>
To: "Brandeburg, Jesse" <jesse.brandeburg@intel.com>
Cc: "Jiri Kosina" <jkosina@suse.cz>,
linux-kernel@vger.kernel.org, linux-netdev@vger.kernel.org,
kkeil@suse.de, agospoda@redhat.com, arjan@linux.intel.com,
"Graham, David" <david.graham@intel.com>,
"Allan, Bruce W" <bruce.w.allan@intel.com>,
"Ronciak, John" <john.ronciak@intel.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
chris.jones@canonical.com, tim.gardner@intel.com,
airlied@gmail.com
Subject: Re: [RFC PATCH 07/12] e1000e: debug contention on NVM SWFLAG
Date: Thu, 2 Oct 2008 19:33:22 +0200 [thread overview]
Message-ID: <200810021933.23677.okir@suse.de> (raw)
In-Reply-To: <36D9DB17C6DE9E40B059440DB8D95F52064FB25C@orsmsx418.amr.corp.intel.com>
On Thursday 02 October 2008 18:27:12 Brandeburg, Jesse wrote:
> so, why now? Drivers since before the e1000/e1000e split had this same
> code, with no reports of problems. This code has been heavily tested,
> and one of the platforms easily reproducing this has been available for
> 3 years now (ich8), with code that is basically unchanged in the driver.
Possibly the dhcp client is doing something differently, or at a much higher
frequency. At any rate, it seems we're seeing this now even when we just
use init level 3, without X involvement. Karsten reports NVM corruption
after 34 reboots into init level 3.
> The flash control registers are documented in the ICH documentation, and
> are located at physical memory location indicated by BAR1 in the config
> space of device 0:19.0
>
> I wonder if we couldn't put a check in to see if the value we end up
> reading from the register controlling the operation matches the
> operation we were expecting (read vs write vs block erase)
That may help, yes.
Olaf
--
Neo didn't bring down the Matrix. SOA did.
--soafacts.com
next prev parent reply other threads:[~2008-10-02 17:33 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-30 3:19 [RFC PATCH 00/12] e1000e debug and protection patches Jesse Brandeburg
2008-09-30 3:19 ` [RFC PATCH 01/12] x86: export set_memory_ro and set_memory_rw Jesse Brandeburg
2008-09-30 7:07 ` Ingo Molnar
2008-09-30 3:19 ` [RFC PATCH 02/12] On Tue, 23 Sep 2008, David Miller wrote: Jesse Brandeburg
2008-10-02 22:23 ` Jesse Barnes
2008-10-03 20:46 ` David Miller
2008-10-03 21:29 ` Jesse Barnes
2008-10-03 21:45 ` Jiri Kosina
2008-10-03 23:28 ` Jesse Brandeburg
2008-10-03 23:30 ` Jesse Brandeburg
2008-10-04 10:21 ` Jiri Kosina
2008-10-04 11:02 ` Thomas Gleixner
2008-10-05 1:24 ` Jesse Brandeburg
2008-10-05 8:51 ` Thomas Gleixner
2008-10-05 15:05 ` Arjan van de Ven
2008-10-05 15:55 ` Thomas Gleixner
2008-10-05 16:02 ` Arjan van de Ven
2008-10-05 16:16 ` Thomas Gleixner
2008-10-05 17:01 ` Arjan van de Ven
2008-10-07 23:19 ` David Miller
2008-09-30 3:19 ` [RFC PATCH 03/12] e1000e: reset swflag after resetting hardware Jesse Brandeburg
2008-09-30 3:19 ` [RFC PATCH 04/12] e1000e: do not ever sleep in interrupt context Jesse Brandeburg
2008-09-30 3:19 ` [RFC PATCH 05/12] e1000e: fix lockdep issues Jesse Brandeburg
2008-09-30 3:19 ` [RFC PATCH 06/12] e1000e: drop stats lock Jesse Brandeburg
2008-09-30 3:19 ` [RFC PATCH 07/12] e1000e: debug contention on NVM SWFLAG Jesse Brandeburg
2008-10-02 14:28 ` Jiri Kosina
2008-10-02 15:03 ` Olaf Kirch
2008-10-02 16:27 ` Brandeburg, Jesse
2008-10-02 17:33 ` Olaf Kirch [this message]
2008-10-02 18:58 ` Thomas Gleixner
2008-10-02 19:07 ` Olaf Kirch
2008-10-02 19:08 ` Olaf Kirch
2008-10-02 18:02 ` Thomas Gleixner
2008-10-02 23:42 ` [PATCH] e1000e: prevent concurrent access to NVRAM Thomas Gleixner
2008-10-03 0:19 ` Jesse Brandeburg
2008-10-03 0:28 ` Thomas Gleixner
2008-09-30 3:19 ` [RFC PATCH 08/12] e1000e: allow bad checksum Jesse Brandeburg
2008-09-30 8:38 ` Jiri Kosina
2008-09-30 3:20 ` [RFC PATCH 09/12] e1000e: dump eeprom to dmesg for ich8/9 Jesse Brandeburg
2008-09-30 3:20 ` [RFC PATCH 10/12] e1000e: Use set_memory_ro()/set_memory_rw() to protect flash memory Jesse Brandeburg
2008-09-30 3:20 ` [RFC PATCH 11/12] e1000e: write protect ICHx NVM to prevent malicious write/erase Jesse Brandeburg
2008-09-30 12:40 ` Jiri Kosina
2008-09-30 15:47 ` Allan, Bruce W
2008-10-01 13:29 ` Jiri Kosina
2008-10-01 19:13 ` Allan, Bruce W
2008-09-30 3:20 ` [RFC PATCH 12/12] update version Jesse Brandeburg
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