linux-kernel - Re: [PATCH -rt DO NOT APPLY] Fix for tg3 networking lockup

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:	Tue, 08 Aug 2006 15:00:06 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	rostedt@...dmis.org
Cc:	tytso@....edu, mchan@...adcom.com, herbert@...dor.apana.org.au,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	tglx@...utronix.de, mingo@...e.hu
Subject: Re: [PATCH -rt DO NOT APPLY] Fix for tg3 networking lockup

From: Steven Rostedt <rostedt@...dmis.org>
Date: Tue, 8 Aug 2006 08:24:10 -0400 (EDT)

> Of the 4 timers, only one is a timeout. The other three expire every time,
> forcing the timer wheel into effect.  Even though it's one timer
> implementing 4, it's expensive to use it as a watchdog.

It's not a watchdog, the timer continually fires.

It is the on-chip ASF firmware that "times out" if it does not
see  the heartbeat message from the driver within 5 seconds.

The driver timer in question runs every 2 seconds to write this
heartbeat message to the chip.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/