Snapshot bootloop on mt7628

bam80 · October 22, 2024, 2:07pm

Got a bootloop on upgrade Kroks KNdRt31R19 from 23.05.5 to SNAPSHOT (r27833-fcd935a5e4).
Tried to preserve and drop the existing configuration - no difference.

I do not have serial cable or other means to get the boot log.
The board doesn't ping on LAN and modem LED flashes with period of several seconds, as evidence of the bootloop.

I wonder if this is known problem with snapshot, or the platform got broken at some point.
Any info would be helpful, thanks.

brada4 · October 22, 2024, 2:41pm

Now it is kind of known. How did you clear the configuration if it loops at boot like soft-briked?

bam80 · October 22, 2024, 2:49pm

First time I flashed with configuration preserve and got the bootloop.
I could recover via bootloader (flashed the release again), then tried to upgrade again without the config preserve: sysupgrade -n.
No difference.

brada4 · October 22, 2024, 2:53pm

Try flashing snapshot again via recovery?
Without serial log no guesses.

bam80 · October 27, 2024, 3:15pm

I was informed here is the problem:

github.com/openwrt/openwrt

Kernel driver bug breaks some w25q128 spi-nor flash chips

opened 01:08AM - 27 Oct 24 UTC

RussellSenior

target/ath79 bug SNAPSHOT Self Built Image Supported Device

### Describe the bug Recently discovered that kernel 6.6.x with some winbond …w25q128 (chip id 0xef4018) cause boot loops. Described here: https://lore.kernel.org/all/CALxbwRo_-9CaJmt7r7ELgu+vOcgk=xZcGHobnKf=oT2=u4d4aA@mail.gmail.com/ Bug introduced in linux kernel commit https://github.com/torvalds/linux/commit/83e824a4a595132f9bd7ac4f5afff857bfc5991e, effects all v6.6.x kernels. Some SPI-NOR, including parts marked 25Q128BVFG, generate dmesg: ``` [ 0.738493] spi-nor spi0.0: BFPT parsing failed. Please consider using SPI_NOR_SKIP_SFDP when declaring the flash [ 0.748779] spi-nor: probe of spi0.0 failed with error -22 [ 0.755114] spi-nor spi0.1: w25q128 (16384 Kbytes) ``` The failure to successfully talk to the chip results in a boot loop. This was observed on Buffalo WZR600DHP, but the report above suggests other devices are similarly effected. ### OpenWrt version r27865-caf29ee97b45 ### OpenWrt release SNAPSHOT ### OpenWrt target/subtarget ath79/generic ### Device Buffalo WZR-600DHP ### Image kind Self-built image ### Steps to reproduce Flash any build with a v6.6.x kernel on affected hardware. ### Actual behaviour ``` BUFFALO U-BOOT Ver 1.00 == CPU:680MHz, DDR:340MHz, AHB:170MHz == AP96 (ar7100) U-boot 0.0.1 DRAM: 128 MB Top of RAM usable for U-Boot at: 84000000 Reserving 266k for U-Boot at: 83fbc000 Reserving 192k for malloc() at: 83f8c000 Reserving 44 Bytes for Board Info at: 83f8bfd4 Reserving 36 Bytes for Global Data at: 83f8bfb0 Reserving 128k for boot params() at: 83f6bfb0 Stack Pointer at: 83f6bf98 Now running in RAM - U-Boot at: 83fbc000 flash bank #0 found 16 MB flash [W25Q128BV, blk:0x10000, sectors:256] flash bank #1 found 16 MB flash [W25Q128BV, blk:0x10000, sectors:256] Flash: 32 MB In: serial Out: serial Err: serial Memory Test uboot use 83F6BFB0 - 84000000 Memory Test start(80000000) end(83F00000) size(03F00000) Pattern 00000000 Writing... Reading... Memory Test start(84000000) end(88000000) size(04000000) Pattern 00000000 Writing... Reading... Memory Test OK ### buf_ver=[1.00] U-Boot Ver.=[1.00] ### build_date(env)=[May 21 2012 - 08:29:08] build_date(bin)=[May 21 2012 - 08:29:08] ag7100_enet_initialize... Reading MAC Address from ENV(0x83f8c2fd) Port 0, Neg Success Port 1, Neg Success Port 2, Neg Success Port 3, Neg Success eth0: Phy Specific Status=0010 eth0: Phy Specific Status=0010 eth0: Phy Specific Status=0010 eth0: Phy Specific Status=0010;leth0: 02:aa:bb:cc:dd:20 eth0 up Reading MAC Address from ENV(0x83f8c2fd) Port 4, Neg Success eth1: Phy Specific Status=0010 eth1: 02:aa:bb:cc:dd:21 eth1 up eth0 02:AA:BB:CC:DD:20 , eth1 02:AA:BB:CC:DD:21 eth0 link down tftp server(receive) go, waiting:4[sec] eth0 link down Load address: 0x84000000 TftpServer Timeout; no file was loaded. change bootargs console=ttyS0,115200 root=31:03 rootfstype=jffs2 init=/sbin/init mtdparts=ar7100-nor0:256k(u-boot),64k(u-boot-env),1152k@384k(uImage),6592k@1536k(rootfs),64k@320k(ART),64k@8128k(properties),8192k@8192k(flash1),16384k@16384k(flash2) mem=128M ## Booting image at bf060000 ... Image Name: MIPS OpenWrt Linux-6.6.57 Created: 2024-10-21 18:54:55 UTC Image Type: MIPS Linux Kernel Image (lzma compressed) Data Size: 2586482 Bytes = 2.5 MB Load Address: 80060000 Entry Point: 80060000 Verifying Checksum ... crc32_fw: bf060040 - bf2d77b1 (len:00277772) calc... crc32_fw: range1 bf060040 - bf2d77b1 OK Uncompressing Kernel Image ... OK No initrd ## Transferring control to Linux (at address 80060000) ... ## Giving linux memsize in bytes, 134217728 Starting kernel ... [ 0.000000] Linux version 6.6.57 (openwrt@hawg) (mips-openwrt-linux-musl-gcc (OpenWrt GCC 13.3.0 r26638-e321e70ddc) 13.3.0, GNU ld (GNU Binutils) 2.42) #0 Mon Oct 21 18:54:55 2024 [ 0.000000] printk: bootconsole [early0] enabled [ 0.000000] CPU0 revision is: 00019374 (MIPS 24Kc) [ 0.000000] MIPS: machine is Buffalo WZR-600DHP [ 0.000000] SoC: Atheros AR7161 rev 2 [ 0.000000] Initrd not found or empty - disabling initrd [ 0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes. [ 0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes [ 0.000000] Zone ranges: [ 0.000000] Normal [mem 0x0000000000000000-0x0000000007ffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000000000-0x0000000007ffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff] [ 0.000000] Kernel command line: console=ttyS0,115200 rootfstype=squashfs,jffs2 [ 0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes, linear) [ 0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes, linear) [ 0.000000] Writing ErrCtl register=00000000 [ 0.000000] Readback ErrCtl register=00000000 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 32480 [ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off [ 0.000000] Memory: 120000K/131072K available (6243K kernel code, 600K rwdata, 1452K rodata, 1232K init, 204K bss, 11072K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] NR_IRQS: 51 [ 0.000000] CPU clock: 680.000 MHz [ 0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 5621354254 ns [ 0.000002] sched_clock: 32 bits at 340MHz, resolution 2ns, wraps every 6316128254ns [ 0.007845] Calibrating delay loop... 452.19 BogoMIPS (lpj=2260992) [ 0.074099] pid_max: default: 32768 minimum: 301 [ 0.090251] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) [ 0.097564] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) [ 0.114971] RCU Tasks Trace: Setting shift to 0 and lim to 1 rcu_task_cb_adjust=1. [ 0.126610] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.136494] futex hash table entries: 256 (order: -1, 3072 bytes, linear) [ 0.146293] pinctrl core: initialized pinctrl subsystem [ 0.153859] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 0.477007] PCI host bridge to bus 0000:00 [ 0.481125] pci_bus 0000:00: root bus resource [mem 0x10000000-0x16ffffff] [ 0.488035] pci_bus 0000:00: root bus resource [io 0x0000] [ 0.493603] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff] [ 0.502042] pci 0000:00:11.0: [168c:ff1d] type 00 class 0x020000 [ 0.508058] pci 0000:00:11.0: reg 0x10: [mem 0x00000000-0x0000ffff] [ 0.514665] pci 0000:00:12.0: [168c:ff1d] type 00 class 0x020000 [ 0.520692] pci 0000:00:12.0: reg 0x10: [mem 0x00000000-0x0000ffff] [ 0.527643] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00 [ 0.534283] pci 0000:00:11.0: BAR 0: assigned [mem 0x10000000-0x1000ffff] [ 0.541099] pci 0000:00:12.0: BAR 0: assigned [mem 0x10010000-0x1001ffff] [ 0.548325] clocksource: Switched to clocksource MIPS [ 0.565649] NET: Registered PF_INET protocol family [ 0.570842] IP idents hash table entries: 2048 (order: 2, 16384 bytes, linear) [ 0.578955] tcp_listen_portaddr_hash hash table entries: 1024 (order: 0, 4096 bytes, linear) [ 0.587421] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) [ 0.595207] TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear) [ 0.602877] TCP bind hash table entries: 1024 (order: 1, 8192 bytes, linear) [ 0.609948] TCP: Hash tables configured (established 1024 bind 1024) [ 0.616463] UDP hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.623049] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.630800] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 0.636520] PCI: CLS 0 bytes, default 32 [ 0.645096] workingset: timestamp_bits=14 max_order=15 bucket_order=1 [ 0.653277] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.659149] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc. [ 0.674382] gpio-export gpio-export: 1 gpio(s) exported [ 0.680582] Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled [ 0.687907] printk: console [ttyS0] disabled [ 0.692783] 18020000.uart: ttyS0 at MMIO 0x18020000 (irq = 12, base_baud = 10625000) is a 16550A [ 0.701658] printk: console [ttyS0] enabled [ 0.701658] printk: console [ttyS0] enabled [ 0.710014] printk: bootconsole [early0] disabled [ 0.710014] printk: bootconsole [early0] disabled [ 0.738418] spi-nor spi0.0: BFPT parsing failed. Please consider using SPI_NOR_SKIP_SFDP when declaring the flash [ 0.748705] spi-nor: probe of spi0.0 failed with error -22 [ 0.755030] spi-nor spi0.1: w25q128 (16384 Kbytes) [ 0.771547] i2c_dev: i2c /dev entries driver [ 0.778731] NET: Registered PF_INET6 protocol family [ 0.836378] Segment Routing with IPv6 [ 0.840199] In-situ OAM (IOAM) with IPv6 [ 0.844271] NET: Registered PF_PACKET protocol family [ 0.849385] 8021q: 802.1Q VLAN Support v1.8 [ 0.888978] clk: Disabling unused clocks [ 0.893921] MTD: Couldn't look up '': -22 [ 0.898080] /dev/root: Can't open blockdev [ 0.902248] VFS: Cannot open root device "" or unknown-block(0,0): error -6 [ 0.909217] Please append a correct "root=" boot option; here are the available partitions: [ 0.917557] 1f00 16384 mtdblock0 [ 0.917569] (driver?) [ 0.924097] List of all bdev filesystems: [ 0.928093] squashfs [ 0.928098] [ 0.931853] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) [ 0.940098] Rebooting in 1 seconds.. ``` ### Expected behaviour ``` BUFFALO U-BOOT Ver 1.00 == CPU:680MHz, DDR:340MHz, AHB:170MHz == AP96 (ar7100) U-boot 0.0.1 DRAM: 128 MB Top of RAM usable for U-Boot at: 84000000 Reserving 266k for U-Boot at: 83fbc000 Reserving 192k for malloc() at: 83f8c000 Reserving 44 Bytes for Board Info at: 83f8bfd4 Reserving 36 Bytes for Global Data at: 83f8bfb0 Reserving 128k for boot params() at: 83f6bfb0 Stack Pointer at: 83f6bf98 Now running in RAM - U-Boot at: 83fbc000 flash bank #0 found 16 MB flash [W25Q128BV, blk:0x10000, sectors:256] flash bank #1 found 16 MB flash [W25Q128BV, blk:0x10000, sectors:256] Flash: 32 MB In: serial Out: serial Err: serial Memory Test uboot use 83F6BFB0 - 84000000 Memory Test start(80000000) end(83F00000) size(03F00000) ^MPattern 55555555 Writing... Reading...^MPattern AAAAAAAA Writing... Reading...^MPattern 00000000 Writing... Reading... Memory Test start(84000000) end(88000000) size(04000000) ^MPattern 55555555 Writing... Reading...^MPattern AAAAAAAA Writing... Reading...^MPattern 00000000 Writing... Reading... Memory Test OK ### buf_ver=[1.00] U-Boot Ver.=[1.00] ### build_date(env)=[May 21 2012 - 08:29:08] build_date(bin)=[May 21 2012 - 08:29:08] ag7100_enet_initialize... Reading MAC Address from ENV(0x83f8c2fd) Port 0, Neg Success Port 1, Neg Success Port 2, Neg Success Port 3, Neg Success eth0: Phy Specific Status=0010 eth0: Phy Specific Status=0010 eth0: Phy Specific Status=0010 eth0: Phy Specific Status=0010;<88>^Beth0: 02:aa:bb:cc:dd:20 eth0 up Reading MAC Address from ENV(0x83f8c2fd) Port 4, Neg Success eth1: Phy Specific Status=0010 eth1: 02:aa:bb:cc:dd:21 eth1 up eth0 02:AA:BB:CC:DD:20 , eth1 02:AA:BB:CC:DD:21 eth0 link down tftp server(receive) go, waiting:4[sec] eth0 link down Load address: 0x84000000 TftpServer Timeout; no file was loaded. change bootargs console=ttyS0,115200 root=31:03 rootfstype=jffs2 init=/sbin/init mtdparts=ar7100-nor0:256k(u-boot),64k(u-boot-env),1152k@384k(uImage),6592k@1536k(rootfs),64k@320k(ART),64k@8128k(properties),8192k@8192k(flash1),16384k@16384k(flash2) mem=128M ## Booting image at bf060000 ... Image Name: MIPS OpenWrt Linux-6.6.57 Created: 2024-10-26 13:00:36 UTC Image Type: MIPS Linux Kernel Image (lzma compressed) Data Size: 2586435 Bytes = 2.5 MB Load Address: 80060000 Entry Point: 80060000 Verifying Checksum ... crc32_fw: bf060040 - bf2d7782 (len:00277743) calc... crc32_fw: range1 bf060040 - bf2d7782 OK Uncompressing Kernel Image ... OK No initrd ## Transferring control to Linux (at address 80060000) ... ## Giving linux memsize in bytes, 134217728 Starting kernel ... [ 0.000000] Linux version 6.6.57 (openwrt@hawg) (mips-openwrt-linux-musl-gcc (OpenWrt GCC 13.3.0 r26638-e321e70ddc) 13.3.0, GNU ld (GNU Binutils) 2.42) #0 Sat Oct 26 13:00:36 2024 [ 0.000000] printk: bootconsole [early0] enabled [ 0.000000] CPU0 revision is: 00019374 (MIPS 24Kc) [ 0.000000] MIPS: machine is Buffalo WZR-600DHP [ 0.000000] SoC: Atheros AR7161 rev 2 [ 0.000000] Initrd not found or empty - disabling initrd [ 0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes. [ 0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes [ 0.000000] Zone ranges: [ 0.000000] Normal [mem 0x0000000000000000-0x0000000007ffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000000000-0x0000000007ffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff] [ 0.000000] Kernel command line: console=ttyS0,115200 rootfstype=squashfs,jffs2 [ 0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes, linear) [ 0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes, linear) [ 0.000000] Writing ErrCtl register=00000000 [ 0.000000] Readback ErrCtl register=00000000 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 32480 [ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off [ 0.000000] Memory: 120000K/131072K available (6243K kernel code, 600K rwdata, 1452K rodata, 1232K init, 204K bss, 11072K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] NR_IRQS: 51 [ 0.000000] CPU clock: 680.000 MHz [ 0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 5621354254 ns [ 0.000002] sched_clock: 32 bits at 340MHz, resolution 2ns, wraps every 6316128254ns [ 0.007844] Calibrating delay loop... 452.19 BogoMIPS (lpj=2260992) [ 0.074098] pid_max: default: 32768 minimum: 301 [ 0.090249] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) [ 0.097564] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) [ 0.114960] RCU Tasks Trace: Setting shift to 0 and lim to 1 rcu_task_cb_adjust=1. [ 0.126595] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.136477] futex hash table entries: 256 (order: -1, 3072 bytes, linear) [ 0.146279] pinctrl core: initialized pinctrl subsystem [ 0.153840] NET: Registered PF_NETLINK/PF_ROUTE protocol family [ 0.476974] PCI host bridge to bus 0000:00 [ 0.481090] pci_bus 0000:00: root bus resource [mem 0x10000000-0x16ffffff] [ 0.488001] pci_bus 0000:00: root bus resource [io 0x0000] [ 0.493568] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff] [ 0.502006] pci 0000:00:11.0: [168c:ff1d] type 00 class 0x020000 [ 0.508023] pci 0000:00:11.0: reg 0x10: [mem 0x00000000-0x0000ffff] [ 0.514632] pci 0000:00:12.0: [168c:ff1d] type 00 class 0x020000 [ 0.520657] pci 0000:00:12.0: reg 0x10: [mem 0x00000000-0x0000ffff] [ 0.527609] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00 [ 0.534248] pci 0000:00:11.0: BAR 0: assigned [mem 0x10000000-0x1000ffff] [ 0.541065] pci 0000:00:12.0: BAR 0: assigned [mem 0x10010000-0x1001ffff] [ 0.548293] clocksource: Switched to clocksource MIPS [ 0.565622] NET: Registered PF_INET protocol family [ 0.570816] IP idents hash table entries: 2048 (order: 2, 16384 bytes, linear) [ 0.578931] tcp_listen_portaddr_hash hash table entries: 1024 (order: 0, 4096 bytes, linear) [ 0.587394] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) [ 0.595180] TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear) [ 0.602851] TCP bind hash table entries: 1024 (order: 1, 8192 bytes, linear) [ 0.609923] TCP: Hash tables configured (established 1024 bind 1024) [ 0.616438] UDP hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.623023] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear) [ 0.630775] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 0.636494] PCI: CLS 0 bytes, default 32 [ 0.645074] workingset: timestamp_bits=14 max_order=15 bucket_order=1 [ 0.653259] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.659133] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc. [ 0.674369] gpio-export gpio-export: 1 gpio(s) exported [ 0.680572] Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled [ 0.687890] printk: console [ttyS0] disabled [ 0.692767] 18020000.uart: ttyS0 at MMIO 0x18020000 (irq = 12, base_baud = 10625000) is a 16550A [ 0.701639] printk: console [ttyS0] enabled [ 0.701639] printk: console [ttyS0] enabled [ 0.709996] printk: bootconsole [early0] disabled [ 0.709996] printk: bootconsole [early0] disabled [ 0.738529] spi-nor spi0.0: w25q128 (16384 Kbytes) [ 0.747746] spi-nor spi0.1: w25q128 (16384 Kbytes) [ 0.764515] i2c_dev: i2c /dev entries driver [ 0.771670] NET: Registered PF_INET6 protocol family [ 0.826622] Segment Routing with IPv6 [ 0.830442] In-situ OAM (IOAM) with IPv6 [ 0.834534] NET: Registered PF_PACKET protocol family [ 0.839649] 8021q: 802.1Q VLAN Support v1.8 [ 0.860542] Concatenating MTD devices: [ 0.864306] (0): "spi0.0" [ 0.866917] (1): "spi0.1" [ 0.869580] into device "flash" [ 0.872758] 5 fixed-partitions partitions found on MTD device flash [ 0.879287] Creating 5 MTD partitions on "flash": [ 0.884000] 0x000000000000-0x000000040000 : "u-boot" [ 0.907394] 0x000000040000-0x000000050000 : "u-boot-env" [ 0.914758] 0x000000050000-0x000000060000 : "art" [ 0.921868] 0x000000060000-0x000001ff0000 : "firmware" [ 0.928022] 2 uimage-fw partitions found on MTD device firmware [ 0.934012] Creating 2 MTD partitions on "firmware": [ 0.938981] 0x000000000000-0x000000280000 : "kernel" [ 0.947344] 0x000000280000-0x000001f90000 : "rootfs" [ 0.954294] mtd: setting mtd7 (rootfs) as root device [ 0.959457] 1 squashfs-split partitions found on MTD device rootfs [ 0.965635] 0x0000010a0000-0x000001f90000 : "rootfs_data" [ 0.973073] 0x000001ff0000-0x000002000000 : "user_property" [ 1.323927] switch0: Atheros AR8316 rev. 1 switch registered on mdio.0 [ 1.333526] ag71xx-legacy 19000000.eth: connected to PHY at fixed-0:00 [uid=00000000, driver=Generic PHY] [ 1.344170] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode: rgmii [ 1.689483] ar8316: Using port 4 as PHY [ 2.810569] ag71xx-legacy 1a000000.eth: connected to PHY at mdio.0:04 [uid=004dd041, driver=Atheros AR8216/AR8236/AR8316] [ 2.822554] eth1: Atheros AG71xx at 0xba000000, irq 5, mode: rgmii [ 2.831543] clk: Disabling unused clocks [ 2.852587] VFS: Mounted root (squashfs filesystem) readonly on device 31:7. [ 2.863266] Freeing unused kernel image (initmem) memory: 1232K [ 2.869213] This architecture does not have kernel memory protection. [ 2.875646] Run /sbin/init as init process [ 3.584049] init: Console is alive [ 3.587861] init: - watchdog - [ 4.737370] kmodloader: loading kernel modules from /etc/modules-boot.d/* [ 4.789233] usbcore: registered new interface driver usbfs [ 4.794826] usbcore: registered new interface driver hub [ 4.800345] usbcore: registered new device driver usb [ 4.816185] gpio_button_hotplug: loading out-of-tree module taints kernel. [ 5.436143] ehci-platform 1b000000.usb: EHCI Host Controller [ 5.441860] ehci-platform 1b000000.usb: new USB bus registered, assigned bus number 1 [ 5.449833] ehci-platform 1b000000.usb: irq 3, io mem 0x1b000000 [ 5.478311] ehci-platform 1b000000.usb: USB 2.0 started, EHCI 1.00 [ 5.485926] hub 1-0:1.0: USB hub found [ 5.490389] hub 1-0:1.0: 2 ports detected [ 5.504873] ohci-platform 1c000000.usb: Generic Platform OHCI controller [ 5.511677] ohci-platform 1c000000.usb: new USB bus registered, assigned bus number 2 [ 5.519743] ohci-platform 1c000000.usb: irq 19, io mem 0x1c000000 [ 5.593647] hub 2-0:1.0: USB hub found [ 5.598082] hub 2-0:1.0: 2 ports detected [ 5.605342] kmodloader: done loading kernel modules from /etc/modules-boot.d/* [ 5.623222] init: - preinit - [ 9.548327] random: crng init done Cannot parse config file '/etc/fw_env.config': No such file or directory Failed to find NVMEM device [ 11.205153] eth0: link up (1000Mbps/Full duplex) Press the [f] key and hit [enter] to enter failsafe mode Press the [1], [2], [3] or [4] key and hit [enter] to select the debug level [ 15.776310] jffs2: notice: (520) jffs2_build_xattr_subsystem: complete building xattr subsystem, 11 of xdatum (10 unchecked, 1 orphan) and 14 of xref (1 dead, 0 orphan) found. [ 15.796055] mount_root: switching to jffs2 overlay [ 15.807187] overlayfs: upper fs does not support tmpfile. [ 15.825843] urandom-seed: Seeding with /etc/urandom.seed [ 15.892818] platform ath9k-leds: deferred probe pending [ 15.927410] eth0: link down [ 15.955374] procd: - early - [ 15.958732] procd: - watchdog - [ 16.627622] procd: - watchdog - [ 16.660764] procd: - ubus - [ 16.872670] procd: - init - Please press Enter to activate this console. ``` ### Additional info https://lore.kernel.org/linux-mtd/D1W69FY9MUZL.33B8G1877MPBL@walle.cc/T/ In the email thread, the reporter, e9hack, provides a patch that fixes it for me. There is an upstream kernel commit (https://github.com/torvalds/linux/commit/d35df77707bf5ae1221b5ba1c8a88cf4fcdd4901) that fixes it, but it has not been back-ported to v6.6.x. The upstream patch can't be applied directly because the format of the spi-nor parameters changed in https://github.com/torvalds/linux/commit/348d772d04fa36d453587c8a9a2720c77eb242c9. This is kind of URGENT to correct as devices, particularly when flashed remotely, will be bricked, requiring invasive recovery steps. (says a person who remotely bricked a device). ### Diffconfig ```text CONFIG_TARGET_ath79=y CONFIG_TARGET_ath79_generic=y CONFIG_TARGET_ath79_generic_DEVICE_buffalo_wzr-600dhp=y CONFIG_DEVEL=y CONFIG_BUSYBOX_CUSTOM=y CONFIG_BUILD_LOG=y ``` ### Terms - [X] I am reporting an issue for OpenWrt, not an unsupported fork.

When snapshot adopts the patch, I could test.