Re: "Badness in local_bh_enable" - a reasonable fix?

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On Wednesday 26 October 2005 15:40, Arjan van de Ven wrote:
> On Wed, 2005-10-26 at 15:34 -0400, Steve Snyder wrote:
> > [ I observed the following on a Fedora Core 3 system, running kernel 
> > 2.6.12-1.1380_FC3.  I am posting this here because a quick Googling 
> > indicates that the problem is not specific to this environment.  ] 
> > 
> > Today I found my system log filled with the error shown below.  
> > Reading a 366MB file across a NFS mount results in over 6300 
> > occurrences of the error being written to the system log of the NFS 
> > server.  
> > 
> > I have 2 network interfaces in the NFS server machine, a standard 
> > kernel Ethernet device driver and my own Ultra-Wide Band (UWB) device 
> > driver.  (In the error shown below the references to "fsuwbpci" are my 
> > driver.) This problem is not seen when using the Ethernet interface, 
> > but is perfectly consistent when reading a NFS-mounted file across the 
> > UWB interface.  Therefore there is a problem with my code.  
> > 
> > I quickly established that the error came from within this routine:
> > 
> 
> > -------------------------------------------
> > 
> > kernel: Badness in local_bh_enable at kernel/softirq.c:140 (Tainted: P     )
> 
> 
> 
> hmmm binary module? please try without.

What, you mean the driver?  No, it is built from source against the
installed & running Fedora Core 3 kernel version 2.6.12-1.1380_FC3.
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