Re: ACRN issues on NUC
Tzeng, Tonny <tonny.tzeng@...>
I can replicate the issue by reducing the memory by half on my NUC7i5BNH. It turns out there was a regression while using the prebuilt acrn.efi in CL27210 on NUC7i5BNH. Please try to boot your device with the acrn.efi in CL27230 (i.e. ACRN 0.5), it works on my NUC7i5BNH with 8GB memory. FYI.
From: Tzeng, Tonny
Sent: Wednesday, January 16, 2019 3:29 PM
Subject: RE: [acrn-users] ACRN issues on NUC
I had similar issue as yours on my NUC7i5BNH, it has 32GB memory and run well with previous ACRN prebuilt binaries. However, I need to change the default settings to meet the memory size on my NUC, and rebuild the hypervisor to be able to boot to the bootloader (where you see the ACRN boot entry).
You may enable the internal UEFI shell and launch the acrn.efi manually from the shell. If the system hangs, most likely it’s the memory issue causing the prebuilt acrn.efi doesn’t work, as the difference between our platforms are memory size. An easy way to verify is to install another 8GB on your NUC and see whether the problem goes away. J
On Behalf Of Ang, Chin Huat
I'm not sure if this is the same as issue #2076. My NUC has 8GB RAM, the documentation  says this has been tested ?
acrn-users@... [acrn-users@...] on behalf of Tzeng, Tonny [tonny.tzeng@...]
If your NUC7i5BNH installed 32GB memory, you’d need to rebuild the hypervisor from source. See 
On Behalf Of Ang, Chin Huat
I tried the Getting Started guide for Intel NUC  on a NUC7i5BNH (Kaby Lake i5-7260U)  with the latest BIOS , however I'm having issues getting ACRN working on Clear Linux version 27210 (installed using clear-26770-installer.img.xz ), and I was hoping if someone can help to confirm the issues below or advice on how to troubleshoot them.
In Step 6 , rebooting the NUC seems to cause the NUC to freeze at the splash screen. Selecting "ACRN" from the F10 Boot Menu only shows a blank screen.
I had to undo Step 3  in order to get to the ACRN Service OS Boot Menu as shown in Step 6 . I'm able to boot "The ACRN Service OS", although "dmesg | grep -i acrn" reported:
[ 0.624715] acrngt found
[ 0.715568] ACRNTrace: acrn_trace: not support acrn hypervisor!
[ 0.715983] ACRN HVLog: acrn_hvlog_init
[ 0.717541] ACRN HVLog: Failed to setup acrn_hvlog_cur_0, errno -19
[ 1.914477] IPv6: ADDRCONF(NETDEV_UP): acrn-br0: link is not ready
[ 1.917454] acrn-br0: port 1(acrn_tap0) entered blocking state
[ 1.919393] acrn-br0: port 1(acrn_tap0) entered disabled state
[ 1.921345] device acrn_tap0 entered promiscuous mode
[ 1.925281] IPv6: ADDRCONF(NETDEV_UP): acrn_tap0: link is not ready
[ 2.185910] acrn-br0: port 2(eno1) entered blocking state
[ 2.186331] acrn-br0: port 2(eno1) entered disabled state
[ 2.401027] acrn-br0: port 2(eno1) entered blocking state
[ 2.401427] acrn-br0: port 2(eno1) entered forwarding state
[ 2.402109] IPv6: ADDRCONF(NETDEV_CHANGE): acrn-br0: link becomes ready
[ 2.904381] acrn-br0: port 2(eno1) entered disabled state
[ 5.588074] acrn-br0: port 2(eno1) entered blocking state
[ 5.588470] acrn-br0: port 2(eno1) entered forwarding state
[ 964.771971] acrn-br0: port 2(eno1) entered disabled state
[ 969.618340] acrn-br0: port 2(eno1) entered blocking state
[ 969.619649] acrn-br0: port 2(eno1) entered forwarding state
The kernel info as reported by "uname -a":
Linux clr-575a8d97bf9f40caad9b8c3244748f08 4.19.8-1901111952.iot-lts2018-sos #1 SMP PREEMPT Sat Jan 12 04:05:35 UTC 2019 x86_64 GNU/Linux
I've also tried to rollback to Clear Linux version 26770 and reapplied all the steps , unfortunately I'm still seeing the same splash screen freeze/blank screen issue.