boot kylinos kernel in loongson3-virt machine get "data bus error"

hello, everyone.

I tried to use loongson3-virt machine and install kylinos, but failed, can anyone help me to find reason?

qemu version: qemu-6.0.0-rc3

host: x86_64 + centos8

This is my start command is:

qemu-system-mips64el \

-cpu Loongson-3A1000 \

-m 8192 \

-M loongson3-virt \

-bios /home/qemu/bios/bios_loongson3.bin \

-device nec-usb-xhci \

-device usb-kbd \

-device usb-mouse \

-device VGA \

-drive if=none,file=/data/qemu/iso/Kylin-Server-10-SP1-mips64el-Release-Build08-20201030.iso,id=cdrom,media=cdrom \

-device virtio-blk-pci,drive=cdrom \

-drive if=none,file=/home/qemu/images/kylin-server-10-mips64el-base.qcow2,id=sda \

-device virtio-blk-pci,drive=sda

I downloaded bios_loongson3.bin can from https://github.com/loongson-community/firmware-nonfree/tree/main/uefi/loongson3-virt

I downloaded Kylin-Server-10-SP1-mips64el-Release-Build08-20201030.iso from https://www.kylinos.cn/scheme/server/1.html

It can be enter boot menu, but after i selected install option, there is nothing displayed, and i found "data bus error" from serial0:

[ 0.000000][ 0] Linux version 4.19.90-21.1.ky10.mips64el NeoKylin Linux Adavanced Server @ CS2C (YHKYLIN-OS@localhost.localdomain) (gcc version 8.3.1 20190507 (Kylin 8.3.1-4) (GCC)) #1 SMP PREEMPT Thu Oct 15 15:40:02 CST 2020

[ 0.000000][ 0] Boot CPU ID is being fixed from 0 to 0

[ 0.000000][ 0] BIOS configured I/O coherency: ON

[ 0.000000][ 0] CpuClock = 800000000

[ 0.000000][ 0] CP0_Config3: CP0 16.3 (0x80)

[ 0.000000][ 0] CP0_PageGrain: CP0 5.1 (0x20000000)

[ 0.000000][ 0] NUMA: Discovered 1 cpus on 1 nodes

[ 0.000000][ 0] Node0: mem_type:1, mem_start:0x0, mem_size:0xf0 MB

[ 0.000000][ 0] start_pfn:0x0, end_pfn:0x3c00, num_physpages:0x3c00

[ 0.000000][ 0] Node0: mem_type:2, mem_start:0x90000000, mem_size:0x1f00 MB

[ 0.000000][ 0] start_pfn:0x24000, end_pfn:0xa0000, num_physpages:0x7fc00

[ 0.000000][ 0] Node0's addrspace_offset is 0x0

[ 0.000000][ 0] Node0: start_pfn=0x0, end_pfn=0xa0000

[ 0.000000][ 0] NUMA: set cpumask cpu 0 on node 0

[ 0.000000][ 0] DMI not present or invalid.

[ 0.000000][ 0] The BIOS Version: Lemote-UDK2018-V0.3.0

[ 0.000000][ 0] bootconsole [early0] enabled

[ 0.000000][ 0] CPU0 revision is: 00006305 (Loongson-3)

[ 0.000000][ 0] FPU revision is: 00770501

[ 0.000000][ 0] Checking for the multiply/shift bug... no.

[ 0.000000][ 0] Checking for the daddiu bug... no.

[ 0.000000][ 0] MIPS: machine is loongson,generic

[ 0.000000][ 0] Determined physical RAM map:

[ 0.000000][ 0] memory: 000000000f000000 @ 0000000000000000 (usable)

[ 0.000000][ 0] memory: 0000000000002000 @ 000000000fffe000 (reserved)

[ 0.000000][ 0] memory: 00000001f0000000 @ 0000000090000000 (usable)

[ 0.000000][ 0] Initial ramdisk at: 0x9800000007690000 (43632076 bytes)

[ 0.000000][ 0] software IO TLB: mapped [mem 0x033d8000-0x073d8000] (64MB)

[ 0.000000][ 0] PM: Registered nosave memory: [mem 0x01fb0000-0x01fb3fff]

[ 0.000000][ 0] Detected 4 available CPU(s)

[ 0.000000][ 0] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.

[ 0.000000][ 0] Primary data cache 64kB, 4-way, VIPT, no aliases, linesize 32 bytes

[ 0.000000][ 0] Unified victim cache 0kB direct mapped, linesize 0 bytes.

[ 0.000000][ 0] Unified secondary cache 4096kB 4-way, linesize 32 bytes.

[ 0.000000][ 0] Zone ranges:

[ 0.000000][ 0] DMA32 [mem 0x0000000000000000-0x00000000ffffffff]

[ 0.000000][ 0] Normal [mem 0x0000000100000000-0x000000027fffffff]

[ 0.000000][ 0] Movable zone start for each node

[ 0.000000][ 0] Early memory node ranges

[ 0.000000][ 0] node 0: [mem 0x0000000000000000-0x000000000effffff]

[ 0.000000][ 0] node 0: [mem 0x0000000090000000-0x000000027fffffff]

[ 0.000000][ 0] Reserved but unavailable: 1 pages

[ 0.000000][ 0] Initmem setup node 0 [mem 0x0000000000000000-0x000000027fffffff]

[ 0.000000][ 0] random: get_random_bytes called from start_kernel+0x94/0x664 with crng_init=0

[ 0.000000][ 0] percpu: Embedded 6 pages/cpu s50976 r8192 d39136 u98304

[ 0.000000][ 0] Built 1 zonelists, mobility grouping on. Total pages: 521220

[ 0.000000][ 0] Policy zone: Normal

[ 0.000000][ 0] Kernel command line: console=tty inst.stage2=hd:LABEL=Kylin-Server-10 graphical rd_start=0xffffffff87690000 rd_size=0x299c5cc e1000e.InterruptThrottleRate=4,4,4,4

[ 0.000000][ 0] Memory: 8144592K/8372224K available (24964K kernel code, 853K rwdata, 5388K rodata, 832K init, 18940K bss, 227632K reserved, 0K cma-reserved)

[ 0.000000][ 0] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1

[ 0.000000][ 0] rcu: Preemptible hierarchical RCU implementation.

[ 0.000000][ 0] rcu: RCU restricting CPUs from NR_CPUS=16 to nr_cpu_ids=4.

[ 0.000000][ 0] Tasks RCU enabled.

[ 0.000000][ 0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4

[ 0.000000][ 0] NR_IRQS: 320, nr_irqs: 320, preallocated irqs: 16

[ 0.000000][ 0] Data bus error, epc == ffffffff80210eec, ra == ffffffff82089f34

[ 0.000000][ 0] Oops[#1]:

[ 0.000000][ 0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.90-21.1.ky10.mips64el #1

[ 0.000000][ 0] $ 0 : 0000000000000000 00000000540008e0 90000efdfb0000a0 0000000000000001

[ 0.000000][ 0] $ 4 : 0000000000000000 ffffffff8215eeb0 9000000000000000 ffffffffffffffff

[ 0.000000][ 0] $ 8 : 0000000000000004 0000000000000001 900000003ff01418 900000003ff00000

[ 0.000000][ 0] $12 : 980000027a000270 fffffffffffffffe 0000000000000040 0000000000000001

[ 0.000000][ 0] $16 : ffffffff81fe0000 ffffffff803b0000 ffffffff81e50000 ffffffff82230000

[ 0.000000][ 0] $20 : ffffffff81fc0000 ffffffff8210b3b8 0000000000000000 0000000000000000

[ 0.000000][ 0] $24 : ffffffffffffffff 0000000000000000

[ 0.000000][ 0] $28 : ffffffff81fac000 ffffffff81fafdc0 0000000000000000 ffffffff82089f34

[ 0.000000][ 0] Hi : 0000000000000000

[ 0.000000][ 0] Lo : 0000000000000000

[ 0.000000][ 0] epc : ffffffff80210eec rs780_init_irq+0xac/0x280

[ 0.000000][ 0] ra : ffffffff82089f34 mach_init_irq+0xb4/0x280

[ 0.000000][ 0] Status: 540008e2 KX SX UX KERNEL EXL

[ 0.000000][ 0] Cause : 4080801c (ExcCode 07)

[ 0.000000][ 0] PrId : 00006305 (Loongson-3)

[ 0.000000][ 0] Modules linked in:

[ 0.000000][ 0] Process swapper/0 (pid: 0, threadinfo=(____ptrval____), task=(____ptrval____), tls=0000000000000000)

[ 0.000000][ 0] Stack : 0000000000000000 ffffffff82089f34 0000000000000140 0000000000000140

[ 0.000000][ 0] ffffffff82050000 ffffffff8208e5ec ffffffff81fb0000 ffffffff81fb0000

[ 0.000000][ 0] ffffffff82100000 ffffffff82160000 0000000000000001 ffffffff8210b3b8

[ 0.000000][ 0] 0000000000000000 ffffffff820810b0 0000000000000000 ffffffff8210b3b8

[ 0.000000][ 0] 3218a0f031b2910e 0000000000000000 0000000000000000 0000000000000006

[ 0.000000][ 0] ffffffff8efff000 980000000f030400 0000000000000000 0000000000000000

[ 0.000000][ 0] 0000000000000000 ffffffff82150064 0000000000000000 0000000000000000

[ 0.000000][ 0] 0000000000000000 0000000000000000 0000000000000000 0000000000000000

[ 0.000000][ 0] ...

[ 0.000000][ 0] Call Trace:

[ 0.000000][ 0] [<ffffffff80210eec>] rs780_init_irq+0xac/0x280

[ 0.000000][ 0] [<ffffffff82089f34>] mach_init_irq+0xb4/0x280

[ 0.000000][ 0] [<ffffffff8208e5ec>] init_IRQ+0x6c/0x1c0

[ 0.000000][ 0] [<ffffffff820810b0>] start_kernel+0x300/0x664

[ 0.000000][ 0] Code: 644200a0 7c42d001 00461025 <f8472002> 1468fff3 00000000 dca20018 8d631424 64420080

[ 0.000000][ 0]

[ 0.000000][ 0] ---[ end trace 51c30fdb72969324 ]---

[ 0.000000][ 0] Kernel panic - not syncing: Attempted to kill the idle task!

[ 0.000000][ 0] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---

From:	ZHAOWANCHENG
Subject:	boot kylinos kernel in loongson3-virt machine get "data bus error"
Date:	Thu, 13 May 2021 17:41:33 +0800 (CST)