netdev - [PATCH 0/1] myri10ge: limit the number of recoveries

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 04 Jun 2007 19:07:04 +0200
From:	Brice Goglin <brice@...i.com>
To:	Jeff Garzik <jeff@...zik.org>
Subject: [PATCH 0/1] myri10ge: limit the number of recoveries

Jeff Garzik wrote:
> Brice Goglin wrote:
>> Limit the number of recoveries from a NIC hw watchdog reset to 1 by
>> default.
>> It enables detection of defective NICs immediately since these memory
>> parity
>> errors are expected to happen very rarely (less than once per
>> century*NIC).
>> However, a defective NIC (very rare, fortunately) can see such an error
>> quite often, ie. every few minutes under high load.
>>
>> Make the limit tunable to allow people with mission critical
>> installations
>> to crank up the tunable and recover an INTMAX number of times while
>> waiting
>> for a downtime window to replace the NIC. The performance won't be
>> optimal,
>> but at least, it will still work.
>>
>> Signed-off-by: Brice Goglin <brice@...i.com>
>> ---
>>  drivers/net/myri10ge/myri10ge.c |   15 +++++++++++++--
>>  1 file changed, 13 insertions(+), 2 deletions(-)
>
> NAK.

Ok...
Then please apply the following patch which limits the number of
recovery to 1 without making it tunable. It will at least enable
detection of bad NICs.

Brice


-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html