Re: [PATCH] xen-netfront: set real_num_tx_queues to zreo avoid to trigger BUG_ON

2016-02-20 Thread Sergei Shtylyov
On 02/20/2016 04:27 AM, Gonglei wrote: It's possible for a race condition to exist between xennet_open() and talk_to_netback(). After invoking netfront_probe() then other threads or processes invoke xennet_open (such as NetworkManager) immediately may trigger BUG_ON(). Besides, we also should re

RE: [PATCH] xen-netfront: set real_num_tx_queues to zreo avoid to trigger BUG_ON

2016-02-19 Thread Gonglei (Arei)
Hi, Thanks for rapid feedback :) > From: David Miller [mailto:da...@davemloft.net] > Sent: Saturday, February 20, 2016 12:37 PM > > From: Gonglei > Date: Sat, 20 Feb 2016 09:27:26 +0800 > > > It's possible for a race condition to exist between xennet_open() and > > talk_to_netback(). After inv

Re: [PATCH] xen-netfront: set real_num_tx_queues to zreo avoid to trigger BUG_ON

2016-02-19 Thread David Miller
From: Gonglei Date: Sat, 20 Feb 2016 09:27:26 +0800 > It's possible for a race condition to exist between xennet_open() and > talk_to_netback(). After invoking netfront_probe() then other > threads or processes invoke xennet_open (such as NetworkManager) > immediately may trigger BUG_ON(). Beside