lkml.org 
[lkml]   [2007]   [Feb]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
Subjectnetpoll again ? (was: Re: 2.6.20-git14 rtl8139 possible circular locking dependency detected)
Francois Romieu <romieu@fr.zoreil.com> :
> Michal Piotrowski <michal.k.k.piotrowski@gmail.com> :
> [...]
>
> Did you enable RTL8139_DEBUG ?
>
> If so you can try the patch below.

It's buggy there too but you are not experiencing this one.

1 - netpoll() calls the poll() handler of the device through netpoll_poll()
2 - The poll handler of the device tries to acquire dev->_xmit_lock
through dev_mc_add during the Rx protocol processing
3 - netpoll() holds dev->_xmit_lock to avoid recursion in netpoll_poll()

#2 and #3 have opposite requirements.

--
Ueimor
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-02-18 00:01    [W:0.063 / U:0.448 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site