lkml.org 
[lkml]   [2015]   [Jul]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: mx6: suspicious RCU usage
On Tue, Jul 14, 2015 at 01:59:10PM -0300, Fabio Estevam wrote:
> On Tue, Jul 14, 2015 at 1:44 PM, Fabio Estevam <festevam@gmail.com> wrote:
>
> > With your patch applied I am running several suspend/resume cycles and
> > I am seeing different problems now from time to time (like 1 out 10
> > times). The kernel dump does not look like the same every time, but
> > here is one example:
>
> Here is another one I just got, and it seems to be more informative:
>
> http://pastebin.com/T4YxuLCg

This might simply be a symptom of the earlier "Unable to handle
kernel paging request at virtual address 708ebbfa". However, the
usual cause of the later "rcu_read_lock() used illegally while idle!"
is just that. In this case, might the interrupt have occurred
without irq_enter() being invoked?

(But there are probably two interleaved stack traces, and I am not
certain that I am getting them untangled properly.)

Thanx, Paul



\
 
 \ /
  Last update: 2015-07-14 21:41    [W:0.205 / U:0.088 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site