Date: Sun, 16 Dec 2018 13:00:46 +0100 From: Solar Designer <solar@...nwall.com> To: lkrg-users@...ts.openwall.com Subject: Re: Ubuntu 18.04 - kzalloc() can't allocate memory 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
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