Hang while trying to boot armv7 on qemu-system-arm

[Dr. Rolf Jansen]

> Am 27.01.2021 um 11:21 schrieb Michał Górny <mgorny at gentoo.org>:
> 
> Hi,
> 
> I'm currently working on improving LLDB support for FreeBSD.  As part
> of that, I would like to do some testing on all platforms that are
> supported by LLDB on FreeBSD.  I've been trying to boot armv7 via qemu
> following the recipe on wiki [1] but without success.
> 
> I've been trying the armv7 images from FTP, 12.2 in GENERICSD and RPI2
> variants, and 12.1 in GENERICSD variant.  In all cases, the system
> seemed to hang at 'spinner'.  While qemu used 100% of one of the CPU
> threads, nothing new was output for a few minutes (FWICS FreeBSD's CI
> sets a timeout of 60 seconds), so I suppose it actually hanged.
> 
> The last screen of output I got is:
> 
> ```
> Loading kernel...
> /boot/kernel/kernel text=0x8b757c data=0xa4d90 data=0x0+0x1f4000
> syms=[0x4+0xa42d0+0x4+0x106515]
> Loading configured modules...
> can't find '/boot/entropy'
> /boot/kernel/umodem.ko text=0x1520 text=0xf10 data=0x234+0x4
> syms=[0x4+0xe70+0x4+0xa74]
> loading required module 'ucom'
> /boot/kernel/ucom.ko text=0x1714 text=0x2c6c data=0x3c4+0x838
> syms=[0x4+0x13e0+0x4+0xbac]
> can't find '/etc/hostid'
> 
> Hit [Enter] to boot immediately, or any other key for command prompt.
> Booting [/boot/kernel/kernel]...               
> Using DTB provided by EFI at 0x47dfd000.
> Kernel entry at 0x57e00180...
> Kernel args: (null)
> |
> ```
> 
> Does anyone have any idea what I am doing wrong?  Or have any recent
> successes booting FreeBSD on qemu-system-arm?
> 
> Alternatively, would someone with real hardware or working VM be able to
> offer me shell access for a few days?  I only need to transfer my cross-
> built LLDB, run one unit test and test a bit of debugging on a trivial
> program, so I won't use many resources.
> 
> 
> [1] https://wiki.freebsd.org/QemuRecipes#armv7
> [2] http://ftp.freebsd.org/pub/FreeBSD/releases/arm/armv7/ISO-IMAGES/
> 
> -- 
> Best regards,
> Michał Górny

I cannot be of help with QUEMU, but I could give you ssh access to one of my BeagleBone Blacks. This one is currently running 13.0-ALPHA2. Frequently I build world with WORLD_FLAGS="MK_LLDB=yes". LLDB builds fine for ARMv7 and it is usable to a certain extend on a BBB, but there are some issues. Perhaps we may discuss this later on.

Best regards

Rolf


Dr. Rolf Jansen
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