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Date: Sun, 16 Dec 2018 13:09:07 -0300
From: "Diego M. Vadell" <dvadell@...tech.com.ar>
To: lkrg-users@...ts.openwall.com
Subject: Re: Ubuntu 18.04 - kzalloc() can't allocate memory



On Sunday 16 December 2018 09:00:46 am Solar Designer wrote:
> On Sun, Dec 16, 2018 at 05:29:40AM +0100, Adam Zabrocki wrote:
> > On Sat, Dec 15, 2018 at 06:56:34PM -0300, Diego M. Vadell wrote:
> > > On Saturday 15 December 2018 02:27:23 pm Adam Zabrocki wrote:
> > > > kzalloc() might fail if you don't have enough memory. Are you trying
> > > > to run LKRG on a VM? If yes you could try to increase allocated
> > > > memory.
> > >
> > > It's not a VM. It's my notebook. It has 4Gb of RAM. I tried again after
> > > closing firefox, and it was the same outcome.
> >
> > It's difficult to tell why your memory alocator fails, but kzalloc()
> > shouldn't have any problems in normal circumstances. Please try to load
> > the module on just booted machine.
>
> That's good advice.  Maybe the problem is memory fragmentation - no
> contiguous region that's large enough.  If confirmed, we'll need to
> document that and include this advice.  I think it's not a big deal
> since for actual use LKRG would in fact need to be loaded on bootup.
>
> > Please also verify if you have correctly configured swap
> > partition and if it is enabled. Maybe increase it.
>
> I doubt swap has any relevance here.
>
> Alexander

Hi. I disabled the propietary nvidia module and now it works perfectly. 
Thanks!

 -- Diego

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