> From: <s_g...@telus.net>
> Date: Thu, 31 Jan 2019 11:04:25 -0800
> 
> It seems to be related to network usage, although I cannot confirm that.
Interesting...

The crash always seems to involve perl as far as I can tell.  I've
seen it crash in the daily job as well.  That doesn't rule out there
is some network-related corrpution going on though.

> As to the unstableness, I loaded Armbian, download, installed and
> ran xfce and Firefox, all without problems.
> 
> Something else that I notice is that the boot sometimes fails and I
> have to power off and on again to get it going.

I think I've seen that as well.  Seems U-Boot/ATF doesn't properly
reset the SoC.  I believe this is fixed in newer ATF versions.

> Stops after this:
> 
> U-Boot SPL 2019.01 (Jan 27 2019 - 23:00:53 -0700)
> DRAM: 1024 MiB
> Trying to boot from MMC1
> 
> I am going to experiment with different u-boots and dtbs.
> 
> Should the dtb be put into the dos partition in the allwinner directory?

Yes.

> -----Original Message-----
> From: owner-...@openbsd.org <owner-...@openbsd.org> On Behalf Of Patrick Wildt
> Sent: January 31, 2019 7:11 AM
> To: Mark Kettenis <mark.kette...@xs4all.nl>
> Cc: s_g...@telus.net; arm@openbsd.org
> Subject: Re: crashes on orangepi pc2
> 
> On Thu, Jan 31, 2019 at 11:26:48AM +0100, Mark Kettenis wrote:
> > > From: <s_g...@telus.net>
> > > Date: Wed, 30 Jan 2019 23:11:00 -0800
> > > 
> > > I thought I would give openbsd arm64 a try and purchased an orangepi pc2.
> > > I followed the INSTALL directions and the install of the system went
> > > smoothly.
> > > I used the lan connection at 1000Mbps to load the system install packages.
> > > 
> > > Simple things like top and df worked fine.  Then I tried to add a package
> > > which resulted in the crash detailed below.
> > > Since the kernel on the miniroot seemed to download the installation
> > > packages I rebooted to the
> > > bsd.sp kernel and tested again with the same results. File systems had to 
> > > be
> > > repaired and it looks like the pkg db was corrupted also.
> > > But the crash was very similar.  See bsd.sp below.
> > > 
> > > Has anyone have any experiences with the orangepi pc2?  The documentation
> > > suggests that it is a targeted machine.
> > > 
> > > I noticed that the boot complains about the dtb when booting from power 
> > > up:
> > > 
> > > Scanning mmc 0:1...
> > > Found EFI removable media binary efi/boot/bootaa64.efi
> > > libfdt fdt_check_header(): FDT_ERR_BADMAGIC
> > > Scanning disks on usb...
> > > 
> > > Is this because there is no longer a dtb on the dos partition after the
> > > install recreates the partition?
> > > 
> > > 
> > > 
> > > bsd.mp crash
> > > 
> > > oppcsobsd# pkg_add nano
> > > quirks-3.83 signed on 2019-01-17T20:44:02Z
> > > quirks-3.83: ok
> > > nano-3.2:libiconv-1.14p3: ok
> > > nano-3.2:gettext-0.19.8.1p3: ok
> > > 
> > > 
> > > 
> > > panic: amap_pp_adjref: negative reference count
> > > Stopped at      panic+0x148:        TID    PID    UID     PRFLAGS     
> > > PFLAGS
> > > C
> > > PU  COMMAND
> > > *447051  73332      0      0x1015          0    2K perl
> > > db_enter() at panic+0x144
> > > panic() at uvm_unmap_detach+0x7c
> > > uvm_unmap_detach() at uvmspace_exec+0x1d0
> > > uvmspace_exec() at sys_execve+0x5a8
> > > sys_execve() at svc_handler+0x264
> > > svc_handler() at do_el0_sync+0x1b0
> > > do_el0_sync() at handle_el0_sync+0x74
> > > https://www.openbsd.org/ddb.html describes the minimum info required in 
> > > bug
> > > reports.  Insufficient info makes it difficult to find and fix bugs.
> > > ddb{2}>
> > > ddb{2}>
> > > ddb{2}>
> > > ddb{2}> trace
> > > db_enter() at panic+0x144
> > > panic() at uvm_unmap_detach+0x7c
> > > uvm_unmap_detach() at uvmspace_exec+0x1d0
> > > uvmspace_exec() at sys_execve+0x5a8
> > > sys_execve() at svc_handler+0x264
> > > svc_handler() at do_el0_sync+0x1b0
> > > do_el0_sync() at handle_el0_sync+0x74
> > > handle_el0_sync() at 0x1859d328e0
> > > address 0x7ffffdd418 is invalid
> > > --- trap ---
> > 
> > I see the exact same error on my Orange Pi PC2.  It is still unclear
> > to me if this issue is specific to that board or a generic issue with
> > the Allwinner H5 SoC.  I've never seen the error on the Allwinner A64
> > though.
> > 
> 
> My NanoPi Neo2, which is H5 based as well, is also rather unstable.
> 
> 
> 

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