[OpenWrt-Devel] ipq40xx: fails to boot with SMP on Mikrotik hAP ac² / RBD52G-5HacD2HnD (WIP)
Hauke Mehrtens
hauke at hauke-m.de
Mon Jul 29 17:51:50 EDT 2019
On 7/29/19 11:25 AM, Baptiste Jonglez wrote:
> Hi,
>
> I am trying to finish the port of Mikrotik hAP ac², but I still can't get
> it to boot properly with SMP. Adding "nosmp" to the cmdline makes the
> initramfs boot fine.
>
> Here is the work-in-progress tree that Hauke based on the RB450Gx4 work:
>
> https://github.com/mmaker/openwrt/tree/device/hAP-ac%C2%B2
> https://github.com/mmaker/openwrt/blob/device/hAP-ac%C2%B2/target/linux/ipq40xx/files-4.19/arch/arm/boot/dts/qcom-ipq4018-rbd52g-5hacd2hnd.dts
> Wiki page: https://openwrt.org/inbox/mikrotik/mikrotik_hap_ac
>
> I tried Pavel's patch "ipq40xx: add support for secondary cores bringup"
> from http://lists.infradead.org/pipermail/openwrt-devel/2019-May/017057.html
> but it did not seem to change anything.
>
> Is there something obviously wrong in the DTS? As far as I know, other
> ipq40xx devices don't have an issue with SMP.
Did you try to revert this commit:
https://github.com/mmaker/openwrt/commit/481615d2f5e4bb053af805dccb901050e1e7a4ed
The vendor dts file uses these 3 blocks, I do not know if they are
loaded to these regions by some boot loader or later by some driver. If
they are loaded there by the boot loader we should probably not use this
memory in Linux and let it run there.
I attached the vendor.dts file we extracted from the flash of the board.
>
> Thanks,
> Baptiste
>
>
> PS: here is the failing bootlog, getting stuck after "Testing write buffer coherency":
>
> [ 0.000000] Booting Linux on physical CPU 0x0
> [ 0.000000] Linux version 4.19.57 (bjonglez at gcc14) (gcc version 7.4.0 (OpenWrt GCC 7.4.0 r10506-a0c97101d6)) #0 SMP Mon Jul 29 08:51:07 2019
> [ 0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> [ 0.000000] CPU: div instructions available: patching division code
> [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> [ 0.000000] OF: fdt: Machine model: Mikrotik RouterBOARD RBD52G-5HacD2HnD (hAP ac²)
> [ 0.000000] bootconsole [earlycon0] enabled
> [ 0.000000] Memory policy: Data cache writealloc
> [ 0.000000] OF: reserved mem: OVERLAP DETECTED!
> [ 0.000000] rsvd2 at 87B00000 (0x87b00000--0x88000000) overlaps with smem at 87e00000 (0x87e00000--0x87e80000)
> [ 0.000000] random: get_random_bytes called from start_kernel+0x7c/0x438 with crng_init=0
> [ 0.000000] percpu: Embedded 15 pages/cpu s29964 r8192 d23284 u61440
> [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 60864
> [ 0.000000] Kernel command line: earlyprintk
> [ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
> [ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
> [ 0.000000] Memory: 232420K/245760K available (4720K kernel code, 168K rwdata, 1288K rodata, 3072K init, 231K bss, 13340K reserved, 0K cma-reserved, 0K highmem)
> [ 0.000000] Virtual kernel memory layout:
> [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
> [ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
> [ 0.000000] vmalloc : 0xd0800000 - 0xff800000 ( 752 MB)
> [ 0.000000] lowmem : 0xc0000000 - 0xd0000000 ( 256 MB)
> [ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
> [ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
> [ 0.000000] .text : 0x(ptrval) - 0x(ptrval) (5713 kB)
> [ 0.000000] .init : 0x(ptrval) - 0x(ptrval) (3072 kB)
> [ 0.000000] .data : 0x(ptrval) - 0x(ptrval) ( 168 kB)
> [ 0.000000] .bss : 0x(ptrval) - 0x(ptrval) ( 232 kB)
> [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
> [ 0.000000] rcu: Hierarchical RCU implementation.
> [ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
> [ 0.000000] arch_timer: cp15 timer(s) running at 48.00MHz (virt).
> [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0xb11fd3bfb, max_idle_ns: 440795203732 ns
> [ 0.000007] sched_clock: 56 bits at 48MHz, resolution 20ns, wraps every 4398046511096ns
> [ 0.007985] Switching to timer-based delay loop, resolution 20ns
> [ 0.014242] Calibrating delay loop (skipped), value calculated using timer frequency.. 96.00 BogoMIPS (lpj=480000)
> [ 0.024315] pid_max: default: 32768 minimum: 301
> [ 0.029081] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
> [ 0.035524] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
> [ 0.043539] CPU: Testing write buffer coherency: ok
>
>
> Here is a working bootlog, same image but with "nosmp":
>
> [ 0.000000] Booting Linux on physical CPU 0x0
> [ 0.000000] Linux version 4.19.57 (bjonglez at gcc14) (gcc version 7.4.0 (OpenWrt GCC 7.4.0 r10506-a0c97101d6)) #0 SMP Mon Jul 29 08:13:02 2019
> [ 0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d
> [ 0.000000] CPU: div instructions available: patching division code
> [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> [ 0.000000] OF: fdt: Machine model: Mikrotik RouterBOARD RBD52G-5HacD2HnD (hAP ac²)
> [ 0.000000] bootconsole [earlycon0] enabled
> [ 0.000000] Memory policy: Data cache writealloc
> [ 0.000000] OF: reserved mem: OVERLAP DETECTED!
> [ 0.000000] rsvd2 at 87B00000 (0x87b00000--0x88000000) overlaps with smem at 87e00000 (0x87e00000--0x87e80000)
> [ 0.000000] random: get_random_bytes called from start_kernel+0x7c/0x438 with crng_init=0
> [ 0.000000] percpu: Embedded 15 pages/cpu s29964 r8192 d23284 u61440
> [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 60864
> [ 0.000000] Kernel command line: earlyprintk nosmp
> [ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
> [ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
> [ 0.000000] Memory: 232420K/245760K available (4720K kernel code, 168K rwdata, 1288K rodata, 3072K init, 231K bss, 13340K reserved, 0K cma-reserved, 0K highmem)
> [ 0.000000] Virtual kernel memory layout:
> [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
> [ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
> [ 0.000000] vmalloc : 0xd0800000 - 0xff800000 ( 752 MB)
> [ 0.000000] lowmem : 0xc0000000 - 0xd0000000 ( 256 MB)
> [ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
> [ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
> [ 0.000000] .text : 0x(ptrval) - 0x(ptrval) (5713 kB)
> [ 0.000000] .init : 0x(ptrval) - 0x(ptrval) (3072 kB)
> [ 0.000000] .data : 0x(ptrval) - 0x(ptrval) ( 168 kB)
> [ 0.000000] .bss : 0x(ptrval) - 0x(ptrval) ( 232 kB)
> [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
> [ 0.000000] rcu: Hierarchical RCU implementation.
> [ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
> [ 0.000000] arch_timer: cp15 timer(s) running at 48.00MHz (virt).
> [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0xb11fd3bfb, max_idle_ns: 440795203732 ns
> [ 0.000008] sched_clock: 56 bits at 48MHz, resolution 20ns, wraps every 4398046511096ns
> [ 0.007985] Switching to timer-based delay loop, resolution 20ns
> [ 0.014242] Calibrating delay loop (skipped), value calculated using timer frequency.. 96.00 BogoMIPS (lpj=480000)
> [ 0.024315] pid_max: default: 32768 minimum: 301
> [ 0.029087] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
> [ 0.035521] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
> [ 0.043529] CPU: Testing write buffer coherency: ok
> [ 0.048493] Setting up static identity map for 0x80300000 - 0x80300060
> [ 0.054162] rcu: Hierarchical SRCU implementation.
> [ 0.059609] smp: Bringing up secondary CPUs ...
> [ 0.063282] smp: Brought up 1 node, 1 CPU
> [ 0.067274] SMP: Total of 1 processors activated (96.00 BogoMIPS).
> [ 0.073476] CPU: All CPU(s) started in SVC mode.
> [ 0.082314] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
> [ 0.089157] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
> [ 0.098782] futex hash table entries: 1024 (order: 4, 65536 bytes)
> [ 0.105261] pinctrl core: initialized pinctrl subsystem
> [ 0.111253] NET: Registered protocol family 16
> [ 0.115162] DMA: preallocated 256 KiB pool for atomic coherent allocations
> [ 0.122468] cpuidle: using governor ladder
> [ 0.125641] cpuidle: using governor menu
> [ 0.147920] usbcore: registered new interface driver usbfs
> [ 0.152432] usbcore: registered new interface driver hub
> [ 0.157828] usbcore: registered new device driver usb
> [ 0.162751] pps_core: LinuxPPS API ver. 1 registered
> [ 0.167657] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti at linux.it>
> [ 0.176824] PTP clock support registered
> [ 0.182206] clocksource: Switched to clocksource arch_sys_counter
> [ 0.188356] NET: Registered protocol family 2
> [ 0.192405] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes)
> [ 0.199346] TCP established hash table entries: 2048 (order: 1, 8192 bytes)
> [ 0.206336] TCP bind hash table entries: 2048 (order: 2, 16384 bytes)
> [ 0.212745] TCP: Hash tables configured (established 2048 bind 2048)
> [ 0.219173] UDP hash table entries: 256 (order: 1, 8192 bytes)
> [ 0.224904] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
> [ 0.231351] NET: Registered protocol family 1
> [ 2.746607] No memory allocated for crashlog
> [ 2.750141] workingset: timestamp_bits=14 max_order=16 bucket_order=2
> [ 2.761295] squashfs: version 4.0 (2009/01/31) Phillip Lougher
> [ 2.766200] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
> [ 2.782649] io scheduler noop registered
> [ 2.785548] io scheduler deadline registered (default)
> [ 2.793099] bam-dma-engine 8e04000.dma: num-channels unspecified in dt
> [ 2.798599] bam-dma-engine 8e04000.dma: num-ees unspecified in dt
> [ 2.806057] tcsr 1949000.tcsr: setting wifi_glb_cfg = 41000000
> [ 2.810931] tcsr 194b000.tcsr: setting usb hs phy mode select = e700e7
> [ 2.817492] tcsr 1953000.ess_tcsr: setting ess interface select = 0
> [ 2.823714] tcsr 1957000.tcsr: setting wifi_noc_memtype_m0_m2 = 2222222
> [ 2.830473] Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
> [ 2.837172] msm_serial 78af000.serial: msm_serial: detected port #0
> [ 2.842873] msm_serial 78af000.serial: uartclk = 1843200
> [ 2.848133] 78af000.serial: ttyMSM0 at MMIO 0x78af000 (irq = 25, base_baud = 115200) is a MSM
> [ 2.856646] msm_serial: console setup �[ 2.861276] console [ttyMSM0] enabled
> [ 2.861276] console [ttyMSM0] enabled
> [ 2.867570] bootconsole [earlycon0] disabled
> [ 2.867570] bootconsole [earlycon0] disabled
> [ 2.876309] msm_serial: driver initialized
> [ 2.881720] loop: module loaded
> [ 2.883175] spi_qup 78b5000.spi: IN:block:16, fifo:64, OUT:block:16, fifo:64
> [ 2.892706] random: fast init done
> [ 2.893893] m25p80 spi0.0: w25q128jv (16384 Kbytes)
> [ 2.895046] 6 fixed-partitions partitions found on MTD device spi0.0
> [ 2.899777] Creating 6 MTD partitions on "spi0.0":
> [ 2.906415] 0x000000000000-0x000000023000 : "Qualcomm-boot1"
> [ 2.911807] 0x000000023000-0x000000080000 : "Qualcomm-boot2"
> [ 2.917503] 0x000000080000-0x00000008e000 : "RouterBoot"
> [ 2.923117] 0x00000008e000-0x00000008f000 : "hard_config"
> [ 2.928336] 0x000000090000-0x0000000a0000 : "dts_config"
> [ 2.933724] 0x0000000bd000-0x0000000be000 : "soft_config"
> [ 2.939783] libphy: ipq40xx_mdio: probed
> [ 3.021986] ESS reset ok!
> [ 3.054970] ESS reset ok!
> [ 3.473002] libphy: Fixed MDIO Bus: probed
> [ 3.474006] EDMA using MAC@ - using
> [ 3.474026] be:cf:22:8f:ab:1b
> [ 3.480289] EDMA using MAC@ - using
> [ 3.480301] ba:b5:bb:8b:4c:13
> [ 3.582352] i2c /dev entries driver
> [ 3.589076] NET: Registered protocol family 10
> [ 3.590761] Segment Routing with IPv6
> [ 3.592617] NET: Registered protocol family 17
> [ 3.596483] 8021q: 802.1Q VLAN Support v1.8
> [ 3.600563] Registering SWP/SWPB emulation handler
> [ 3.611201] �[ 3.617293] Freeing unused kernel memory: 3072K
> [ 3.632992] Run /init as init process
> [ 3.658087] init: Console is alive
> [ 3.658335] init: - watchdog -
> [ 3.670018] kmodloader: loading kernel modules from /etc/modules-boot.d/*
> [ 3.682835] kmodloader: done loading kernel modules from /etc/modules-boot.d/*
> [ 3.693606] init: - preinit -
> [ 3.871306] random: jshn: uninitialized urandom read (4 bytes read)
> [ 3.904673] random: jshn: uninitialized urandom read (4 bytes read)
> [ 3.966511] random: jshn: uninitialized urandom read (4 bytes read)
> /bin/board_detect: line 10: Unsupported: not found
> 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
> [ 7.223677] procd: - early -
> [ 7.223795] procd: - watchdog -
> [ 7.769990] procd: - watchdog -
> [ 7.773940] procd: - ubus -
> [ 7.788514] urandom_read: 5 callbacks suppressed
> [ 7.788528] random: ubusd: uninitialized urandom read (4 bytes read)
> [ 7.824888] random: ubusd: uninitialized urandom read (4 bytes read)
> [ 7.828410] procd: - init -
> Please press Enter to activate this console.
> [ 8.109693] urngd: v1.0.0 started.
> [ 8.151387] kmodloader: loading kernel modules from /etc/modules.d/*
> [ 8.183371] input: beeper as /devices/platform/beeper/input/input0
> [ 8.194497] Loading modules backported from Linux version v4.19.32-0-g3a2156c839c7
> [ 8.194532] Backport generated by backports.git v4.19.32-1-0-g1c4f7569
> [ 8.224703] xt_time: kernel timezone is -0000
> [ 8.263888] random: crng init done
> [ 8.270731] usbcore: registered new interface driver mt7601u
> [ 8.296351] PPP generic driver version 2.4.2
> [ 8.298086] NET: Registered protocol family 24
> [ 8.312402] usbcore: registered new interface driver mt76x0u
> [ 8.316366] kmodloader: done loading kernel modules from /etc/modules.d/*
>
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