linux-kernel - Re: sky2 hangs

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]

Message-ID: <20070201145815.199bfe1a@freekitty>
Date:	Thu, 1 Feb 2007 14:58:15 -0800
From:	Stephen Hemminger <shemminger@...ux-foundation.org>
To:	"Fagyal Csongor" <concept@...ceptonline.hu>
Cc:	<thomas@...nzmann.de>, <linux-kernel@...r.kernel.org>,
	<netdev@...r.kernel.org>
Subject: Re: sky2 hangs

I can reproduce the problem now (on mac mini). Interestingly it seems to whack
the whole ethernet switch when it happens.
> 
> - a previously suggested fix - passing idle=poll to the kernel - did not
> work for me at the end

It is not an MSI or IRQ problem. It is a phy problem (see below).

> - the locks I have happen very periodically (somewhere around every 22-28
> hours), as if the chip would die after a given amount of data transferred;
> I know this looks stupid but I thought I might mention it
> - I have about 1Mbit/s of (incoming) traffic on this interface: with
> short, very high peaks, as there is a MySQL server on the other end,
> receiving about 100 queries per second
> - unloading the sky2 module totally freezes the computer for me

If you do:
	ethtool -r eth0
it cause a PHY reset (renegotiation) and clears the problem.


-- 
Stephen Hemminger <shemminger@...ux-foundation.org>
-
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/