-----Original message----- > From: Pablo Sebastián Greco <pablo at fliagreco.com.ar> > Sent: Monday, December 14, 2020 6:00 PM > To: Conversations around CentOS on ARM hardware <arm-dev at centos.org>; mark <mark at havak.nl> > Subject: Re: [Arm-dev] unable to configure zram-swap on RPI 4 8G model (32bit) > > > On 14/12/20 13:43, mark wrote: > > > > -----Original Message----- > > From: Pablo Sebastián Greco <pablo at fliagreco.com.ar> > > Sent: maandag 14 december 2020 17:20 > > To: Conversations around CentOS on ARM hardware <arm-dev at centos.org>; mark > <mark at havak.nl> > > Subject: Re: [Arm-dev] unable to configure zram-swap on RPI 4 8G model (32bit) > > > > > > On 14/12/20 11:42, mark wrote: > >> Being aware using zram-swap is not a default feature on the CentOS > >> Userland for armv7hl, Still want to share the problem I ran in to. > >> > >> I turns out the arm 32bit kernel with large memory support OOPS if zram-swap > is deployed if the system has more than 4GB ram. > > I'm a heavy user of zram-swap, even not being default, but I have only used > with devices that have 2G max, this is interesting. Does it still happen if > you limit the size? > > > > Did not test limiting the ram to 4GB myself jet, it does according to : > > https://github.com/raspberrypi/linux/issues/3839#issuecomment-723027652 > I meant limiting the size of the zram-swap No the size of the swap does not seem matter: I tried 512, 1024 and 4096MB On a RPI4 4GB model it works just fine, on a 8GB model I get a "Internal error: Oops: 207" BTW running a fresh homebrew image of CentOS 7.9.2009 without a swap-partition and kernel: 5.4.72-v7l.1.el7 #1 SMP Wed Oct 21 17:20:56 UTC 2020 armv7l armv7l armv7l GNU/Linux > > > > > >> This issue seems to be addressed (verry recently) in kernel 5.4.81 (1) > >> > >> As mentioned this is verry recently, version 5.4.81 is just 12 day's old.. > >> However if there is a testbuild of this rpi2-kernel4: I'm eager to test > it 😉 > > There's no test build yet, I'm still adjusting to what happened last > > week, but hopefully we'll have a new kernel soon > >> 1) https://github.com/raspberrypi/linux/commit/1bef5f25a69234613b92a0e2456870fee4a57efc > >> > >> > > Pablo. > > > > _______________________________________________ > > Arm-dev mailing list > > Arm-dev at centos.org > > https://lists.centos.org/mailman/listinfo/arm-dev >