netdev - Re: [net-next 02/16] ixgbe: fix spinlock recursion with netpoll and busy poll

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:	Fri, 14 Mar 2014 17:53:07 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	emil.s.tantilov@...el.com
Cc:	jeffrey.t.kirsher@...el.com, netdev@...r.kernel.org,
	gospo@...hat.com, sassmann@...hat.com, asharma@...com,
	stable@...r.kernel.org, jacob.e.keller@...el.com
Subject: Re: [net-next 02/16] ixgbe: fix spinlock recursion with netpoll
 and busy poll

From: "Tantilov, Emil S" <emil.s.tantilov@...el.com>
Date: Fri, 14 Mar 2014 20:40:25 +0000

> I noticed Eric's patches and this is obviously the better way to
> deal with it, but once the netpoll_rx patches are accepted will they
> make it into previous stable releases? Currently kernels between
> 3.11 and 3.13 (assuming Eric's changes make it into 3.14) will hang
> when netpoll and busy poll are used together.

This is very likely.

And in any event, solving it only in specific drivers is not the way
to go about things.
--
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