[Arm-dev] unable to configure zram-swap on RPI 4 8G model (32bit)

Mon Dec 14 17:00:01 UTC 2020
Pablo Sebastián Greco <pablo at fliagreco.com.ar>

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
>
>
>> 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.
>
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