[LEDE-DEV] flash issue

e9hack e9hack at gmail.com
Thu Jul 21 07:08:50 PDT 2016 

Hi,

I did flash several different images to my WDR3600 router. In the partition size
detection, I don't see any major differences. An image from OpenWRT shows the same error
at the first boot, but for some reason it doesn't overwrite files at the second boot. One
major difference exist between my builds and a nightly build from Lede home page. In my
build, the line

[   15.428814] jffs2: notice: (457) jffs2_build_xattr_subsystem: complete building xattr
subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.

occurs twice. In Lede build only once. I compare this with my Archer C7 router. The line
occurs twice too. But it uses the original flash of 16MB. In the log files, I see an entry

[   10.117176] jffs2_scan_eraseblock(): End of filesystem marker found at 0x30000

The hex value is different between the WDR3600 and the Archer C7 but doesn't match in any
way to the partition sizes.

I attached the diff to build the larger images for my WDR3600. I've two solutions. The
first replaces the 8Mb flash by the 16Mb type for the whole WDR4300/WDR3500/WDR3600
platform. The second generates a new device entry for the larger flash. This can be select
during build.

Any ideas to solve my problem?

Regards,
Hartmut


-- WDR3600 first boot after flashing of Lede my image --

[    0.595551] m25p80 spi0.0: found w25q128, expected m25p80
[    0.601099] m25p80 spi0.0: w25q128 (16384 Kbytes)
[    0.607066] 5 tp-link partitions found on MTD device spi0.0
[    0.612723] Creating 5 MTD partitions on "spi0.0":
[    0.617624] 0x000000000000-0x000000020000 : "u-boot"
[    0.624126] 0x000000020000-0x000000156f48 : "kernel"
[    0.630851] 0x000000156f48-0x000000ff0000 : "rootfs"
[    0.637518] mtd: device 2 (rootfs) set to be root filesystem
[    0.643319] 1 squashfs-split partitions found on MTD device rootfs
[    0.649648] 0x000000bc0000-0x000000ff0000 : "rootfs_data"
[    0.656798] 0x000000ff0000-0x000001000000 : "art"
[    0.663203] 0x000000020000-0x000000ff0000 : "firmware"

[    9.470240] jffs2_scan_eraseblock(): End of filesystem marker found at 0x70000
[    9.477636] jffs2_build_filesystem(): unlocking the mtd device... done.
[    9.484352] jffs2_build_filesystem(): erasing all blocks after the end marker... done.
[   19.250004] jffs2: notice: (417) jffs2_build_xattr_subsystem: complete building xattr
subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.
[   19.470188] jffs2: notice: (414) jffs2_build_xattr_subsystem: complete building xattr
subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.

-- WDR3600 first boot after flashing of OpenWRT my image --

[    0.591974] m25p80 spi0.0: found w25q128, expected m25p80
[    0.597521] m25p80 spi0.0: w25q128 (16384 Kbytes)
[    0.603265] 5 tp-link partitions found on MTD device spi0.0
[    0.608925] Creating 5 MTD partitions on "spi0.0":
[    0.613837] 0x000000000000-0x000000020000 : "u-boot"
[    0.619762] 0x000000020000-0x000000144bd0 : "kernel"
[    0.625664] 0x000000144bd0-0x000000ff0000 : "rootfs"
[    0.631500] mtd: device 2 (rootfs) set to be root filesystem
[    0.637321] 1 squashfs-split partitions found on MTD device rootfs
[    0.643612] 0x000000df0000-0x000000ff0000 : "rootfs_data"
[    0.649897] 0x000000ff0000-0x000001000000 : "art"
[    0.655520] 0x000000020000-0x000000ff0000 : "firmware"

[    8.975870] jffs2_scan_eraseblock(): End of filesystem marker found at 0x70000
[    8.983239] jffs2_build_filesystem(): unlocking the mtd device... done.
[    8.989967] jffs2_build_filesystem(): erasing all blocks after the end marker...
[    9.612628] Atheros AR8216/AR8236/AR8316 ag71xx-mdio.0:00: Port 2 is up
[   12.970906] done.
[   12.972940] jffs2: notice: (423) jffs2_build_xattr_subsystem: complete building xattr
subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.
[   13.460438] jffs2: notice: (420) jffs2_build_xattr_subsystem: complete building xattr
subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.

-- WDR3600 first boot after flashing of Lede nightly build image ---

[    0.599181] m25p80 spi0.0: found w25q128, expected m25p80
[    0.604670] m25p80 spi0.0: w25q128 (16384 Kbytes)
[    0.610552] 5 tp-link partitions found on MTD device spi0.0
[    0.616210] Creating 5 MTD partitions on "spi0.0":
[    0.621114] 0x000000000000-0x000000020000 : "u-boot"
[    0.627564] 0x000000020000-0x00000016e1e0 : "kernel"
[    0.634125] 0x00000016e1e0-0x000000ff0000 : "rootfs"
[    0.640753] mtd: device 2 (rootfs) set to be root filesystem
[    0.646596] 1 squashfs-split partitions found on MTD device rootfs
[    0.652875] 0x000000350000-0x000000ff0000 : "rootfs_data"
[    0.659953] 0x000000ff0000-0x000001000000 : "art"
[    0.666282] 0x000000020000-0x000000ff0000 : "firmware"

[    7.511918] jffs2_scan_eraseblock(): End of filesystem marker found at 0x70000
[    7.519320] jffs2_build_filesystem(): unlocking the mtd device... done.
[    7.526037] jffs2_build_filesystem(): erasing all blocks after the end marker... done.
[   43.861142] jffs2: notice: (411) jffs2_build_xattr_subsystem: complete building xattr
subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.

-- Archer C7 first boot after flashing of Lede my image --

[    0.824059] m25p80 spi0.0: found w25q128, expected m25p80
[    0.829594] m25p80 spi0.0: w25q128 (16384 Kbytes)
[    0.835477] 5 tp-link partitions found on MTD device spi0.0
[    0.841169] Creating 5 MTD partitions on "spi0.0":
[    0.846041] 0x000000000000-0x000000020000 : "u-boot"
[    0.852223] 0x000000020000-0x0000001574c0 : "kernel"
[    0.858575] 0x0000001574c0-0x000000ff0000 : "rootfs"
[    0.864848] mtd: device 2 (rootfs) set to be root filesystem
[    0.870687] 1 squashfs-split partitions found on MTD device rootfs
[    0.876970] 0x000000e50000-0x000000ff0000 : "rootfs_data"
[    0.883693] 0x000000ff0000-0x000001000000 : "art"
[    0.889779] 0x000000020000-0x000000ff0000 : "firmware"

[   10.117176] jffs2_scan_eraseblock(): End of filesystem marker found at 0x30000
[   10.124519] jffs2_build_filesystem(): unlocking the mtd device... done.
[   10.131247] jffs2_build_filesystem(): erasing all blocks after the end marker... done.
[   15.428814] jffs2: notice: (457) jffs2_build_xattr_subsystem: complete building xattr
subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.
[   15.622275] jffs2: notice: (454) jffs2_build_xattr_subsystem: complete building xattr
subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.

-- modification of build scripts for the larger flash --
diff --git a/target/linux/ar71xx/image/tp-link.mk b/target/linux/ar71xx/image/tp-link.mk
index ccb1f5b..adb2f4d 100644
--- a/target/linux/ar71xx/image/tp-link.mk
+++ b/target/linux/ar71xx/image/tp-link.mk
@@ -110,7 +110,8 @@ endef
 TARGET_DEVICES += cpe210-220 cpe510-520

 define Device/tl-wdr4300-v1
-$(Device/tplink-8mlzma)
+#$(Device/tplink-8mlzma)
+$(Device/tplink-16mlzma)
   DEVICE_TITLE := TP-LINK TL-WDR4300
   DEVICE_PACKAGES := kmod-usb-core kmod-usb2 kmod-ledtrig-usbdev
   BOARDNAME = TL-WDR4300
@@ -131,6 +132,15 @@ $(Device/tl-wdr4300-v1)
   TPLINK_HWID := 0x36000001
 endef

+define Device/tl-wdr3600-v1-2
+$(Device/tplink-16mlzma)
+  DEVICE_TITLE := TP-LINK TL-WDR3600 v1-2
+  DEVICE_PACKAGES := kmod-usb-core kmod-usb2 kmod-ledtrig-usbdev
+  BOARDNAME = TL-WDR4300
+  DEVICE_PROFILE = TLWDR4300
+  TPLINK_HWID := 0x36000001
+endef
+
 define Device/tl-wdr4300-v1-il
 $(Device/tl-wdr4300-v1)
   DEVICE_TITLE := TP-LINK TL-WDR4300 v1 IL
@@ -148,7 +158,7 @@ $(Device/tl-wdr4300-v1)
   DEVICE_TITLE := TP-LINK TL-WDR4530 v1
   TPLINK_HWID := 0x45300001
 endef
-TARGET_DEVICES += tl-wdr3500-v1 tl-wdr3600-v1 tl-wdr4300-v1 tl-wdr4300-v1-il
tl-wdr4310-v1 mw4530r-v1
+TARGET_DEVICES += tl-wdr3500-v1 tl-wdr3600-v1 tl-wdr3600-v1-2 tl-wdr4300-v1
tl-wdr4300-v1-il tl-wdr4310-v1 mw4530r-v1

 define Device/tl-wdr6500-v2
 $(Device/tplink-8mlzma)


Am 21.07.2016 um 11:19 schrieb Conor O'Gorman:
> 0x1985 is a jffs2 magic marker value. Look up the jffs2 code. So it's not a bogus value
> that might come from a 'bad' flash. More likely is that you have some issue with flash
> partition sizes, possibly as you have a non-standard flash size anyway.
> Look carefully at the boot log for the flash partitioning.

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