RE: Kernel BUG at mm/rmap.c:491

[Randy.Dunlap]

On Wed, 23 Nov 2005, Randy.Dunlap wrote:

> On Wed, 23 Nov 2005, Chen, Kenneth W wrote:
>
> > Con Kolivas wrote on Wednesday, November 23, 2005 3:24 PM
> > > Chen, Kenneth W writes:
> > >
> > > > Has people seen this BUG_ON before?  On 2.6.15-rc2, x86-64.
> > > >
> > > > Pid: 16500, comm: cc1 Tainted: G    B 2.6.15-rc2 #3
> > > >
> > > > Pid: 16651, comm: sh Tainted: G    B 2.6.15-rc2 #3
> > >
> > >                        ^^^^^^^^^^
> > >
> > > Please try to reproduce it without proprietary binary modules linked in.
> >
> >
> > ???, I'm not using any modules at all.
> >
> > [albat]$ /sbin/lsmod
> > Module                  Size  Used by
> > [albat]$
> >
> >
> > Also, isn't it 'P' indicate proprietary module, not 'G'?
>
> Yes.  It's the 'B' that is tainting in this case:
> TAINT_BAD_PAGE is set.

in only one place:
./mm/page_alloc.c:148:  add_taint(TAINT_BAD_PAGE);


> > line 159: kernel/panic.c:
> >
> >         snprintf(buf, sizeof(buf), "Tainted: %c%c%c%c%c%c",
> >                 tainted & TAINT_PROPRIETARY_MODULE ? 'P' : 'G',
>
>

-- 
~Randy
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