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Re: "external abort on linefetch (0x814)" on Kirkwood 6282 SoC

Hi Andrew and list,

On 28-07-17 18:33, Andrew Lunn wrote:
> So far, i've not been able to reproduce this. I have 6282 based QNAP
> NAS box, with a single disk. Since this is a kernel hacking box, i
> tftpboot and don't use an initrd. I've been using the
> mvebu_v5_defconfig kernel configuration and i have tried v4.13-rc2,
> v4.12, v4.10.0 and v3.9.30. And i have sid for user space.

I'm one of the persons that reported the issue.

I have both a 6281 and a 6282 based device. The 6281 based device (QNAP
TS-219) is on Debian stretch state Juli 25th with kernel
linux-image-4.9.0-3-marvell 4.9.30-2+deb9u2 and initramfs mudules set to
most. The 6282 based device (QNAP TS-221) is stuck on jessie with kernel
linux-image-4.3.0-0.bpo.1-kikwood 4.3.5-1~bpo8+1.
Both devices are in use for personal use, so when the OS is up and
running there are processes active causing network and disk activity.

The way I test is by creating an initrd and vmlinuz from the 6281 device
for the 6282 device using the attached script putting the files on a FAT
based USB key mounted under /mnt and booting with the u-boot commands
printed. The command is not complete, it is missing the USB init parts.
Then I move de USB key and the disks over to the 6282 based device and
boot with the vmlinuz and initrd from the USB key.

Last test was done by installing (but not flashing) the same kernel
image on both systems and just moving initrd and vmlinuz over with the
USB key.

As you can see from the script I did try TFTP booting as well. I do
recall having the issues then as well, though it has been a while. Would
it be possible for you to try with a USB key?

Also are you just booting the kernel or are there processes active?
I did notice the last time the system felt sluggish but it took a while
for error messages to appear.

>        Andrew



devio > $tmp 'wl 0xe3a01c08,4' 'wl 0xe381105b,4' # TS-11x, TS-21x and TS-219P
cat /boot/vmlinuz-${vers}-${plat} >> $tmp
cat /usr/lib/linux-image-${vers}-${plat}/kirkwood-ts219-6282.dtb >> $tmp
mkimage -A arm -O linux -T kernel -C none -a 0x00008000 -e 0x00008000 -d $tmp $tftproot/vmlinuz-${vers}-${plat}.uboot

dd if=/boot/initrd.img-${vers}-${plat} of=$tftproot/initrd.img-${vers}-${plat}.uboot ibs=9437184 conv=sync

sudo mv $tftproot/vmlinuz-${vers}-${plat}.uboot /mnt/twai.vmlinuz
sudo mv $tftproot/initrd.img-${vers}-${plat}.uboot /mnt/twai.initrd

cat - << _EOT_
setenv bootargs console=ttyS0,115200n8 earlyprintk root=/dev/ram rw initrd=0xa00000,0x8fffff
tftpboot 0xa00000 twai.initrd
tftpboot 0x800000 twai.vmlinuz
bootm 0x800000

setenv bootargs console=ttyS0,115200n8 earlyprintk root=/dev/ram rw initrd=0xa00000,0x8fffff
fatload 0xa00000 twai.initrd
fatload 0x800000 twai.vmlinuz
bootm 0x800000

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