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Message-ID: <ZME1J4mpVf5yth32@xhacker>
Date: Wed, 26 Jul 2023 23:00:55 +0800
From: Jisheng Zhang <jszhang@...nel.org>
To: Xi Ruoyao <xry111@...uxfromscratch.org>
Cc: Conor Dooley <conor.dooley@...rochip.com>,
Thomas Gleixner <tglx@...utronix.de>,
Marc Zyngier <maz@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Palmer Dabbelt <palmer@...belt.com>,
Paul Walmsley <paul.walmsley@...ive.com>,
Albert Ou <aou@...s.berkeley.edu>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
Guo Ren <guoren@...nel.org>, Fu Wei <wefu@...hat.com>,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v3 0/8] Add Sipeed Lichee Pi 4A RISC-V board support
On Wed, Jul 26, 2023 at 08:48:08PM +0800, Xi Ruoyao wrote:
> On Tue, 2023-07-25 at 22:58 +0800, Jisheng Zhang wrote:
> > > Are you using the vendor OpenSBI? IIRC, and the lads can probably
> > > correct me here, you need to have an OpenSBI that contains
> > > https://github.com/riscv-software-src/opensbi/commit/78c2b19218bd62653b9fb31623a42ced45f38ea6
> > > which the vendor supplied OpenSBI does not have.
> >
> > To ruoyao,
> >
> > I believe Conor has provided enough details and given you the clues.
> > And I believe you were using the legacy opensbi. If you still reproduce
> > the issue with the latest opensbi generic platform, plz provided full
> > uart log from openSBI to the kernel panic point.
>
> Thanks you all for the help!
>
> I downloaded the latest opensbi 1.3.1 and put fw_dynamic.bin in the
> generic directory into /boot (renamed not to overwritten the vendor
> one), then loaded it onto address 0 from the vendor u-boot. Now the
> plic issue was gone, but another panic happened. Log is pasted at the
> end of this mail.
>
> I've not set up an initramfs, so I'm expecting a panic after all, but I
> think it should be "VFS: cannot mount root fs" or something, not
> "unexpected interrupt cause".
>
> Is it a problem with vendor u-boot? Should I try loading a latest u-
> boot from the vendor one, and then load the kernel with the new u-boot?
which dts r u using? see below.
>
> Or maybe my toolchain (GCC 13.1.0, Binutils-2.40, with no patches) can
> miscompile the kernel?
>
> ## Flattened Device Tree blob at 46000000
> Booting using the fdt blob at 0x46000000
> Using Device Tree in place at 0000000046000000, end 00000000460050c4
>
> Starting kernel ...
>
>
> OpenSBI v1.3.1
> ____ _____ ____ _____
> / __ \ / ____| _ \_ _|
> | | | |_ __ ___ _ __ | (___ | |_) || |
> | | | | '_ \ / _ \ '_ \ \___ \| _ < | |
> | |__| | |_) | __/ | | |____) | |_) || |_
> \____/| .__/ \___|_| |_|_____/|___/_____|
> | |
> |_|
>
> Platform Name : Sipeed Lichee Pi 4A
> Platform Features : medeleg
> Platform HART Count : 4
> Platform IPI Device : aclint-mswi
> Platform Timer Device : aclint-mtimer @ 3000000Hz
> Platform Console Device : uart8250
> Platform HSM Device : ---
> Platform PMU Device : ---
> Platform Reboot Device : ---
> Platform Shutdown Device : ---
> Platform Suspend Device : ---
> Platform CPPC Device : ---
> Firmware Base : 0x0
> Firmware Size : 224 KB
> Firmware RW Offset : 0x20000
> Firmware RW Size : 96 KB
> Firmware Heap Offset : 0x2e000
> Firmware Heap Size : 40 KB (total), 2 KB (reserved), 9 KB (used), 28 KB (free)
> Firmware Scratch Size : 4096 B (total), 760 B (used), 3336 B (free)
> Runtime SBI Version : 1.0
>
> Domain0 Name : root
> Domain0 Boot HART : 0
> Domain0 HARTs : 0*,1*,2*,3*
> Domain0 Region00 : 0x000000ffdc008000-0x000000ffdc00bfff M: (I,R,W) S/U: ()
> Domain0 Region01 : 0x000000ffdc000000-0x000000ffdc007fff M: (I,R,W) S/U: ()
> Domain0 Region02 : 0x0000000000000000-0x000000000001ffff M: (R,X) S/U: ()
> Domain0 Region03 : 0x0000000000020000-0x000000000003ffff M: (R,W) S/U: ()
> Domain0 Region04 : 0x0000000000000000-0xffffffffffffffff M: (R,W,X) S/U: (R,W,X)
> Domain0 Next Address : 0x0000000040200000
> Domain0 Next Arg1 : 0x0000000046000000
> Domain0 Next Mode : S-mode
> Domain0 SysReset : yes
> Domain0 SysSuspend : yes
>
> Boot HART ID : 0
> Boot HART Domain : root
> Boot HART Priv Version : v1.11
> Boot HART Base ISA : rv64imafdcvx
what? I don't think the mainline dts provide v and x.
> Boot HART ISA Extensions : time
> Boot HART PMP Count : 0
> Boot HART PMP Granularity : 0
> Boot HART PMP Address Bits: 0
> Boot HART MHPM Count : 16
> Boot HART MIDELEG : 0x0000000000000222
> Boot HART MEDELEG : 0x000000000000b109
> [ 0.000000] Linux version 6.5.0-rc3 (lfs@...rgazer) (riscv64-lfs-linux-gnu-gcc (GCC) 13.1.0, GNU ld (GNU Binutils) 2.40) #1 SMP PREEMPT Tue Jul 25 13:38:20 CST 2023
> [ 0.000000] Machine model: Sipeed Lichee Pi 4A
> [ 0.000000] SBI specification v1.0 detected
> [ 0.000000] SBI implementation ID=0x1 Version=0x10003
> [ 0.000000] SBI TIME extension detected
> [ 0.000000] SBI IPI extension detected
> [ 0.000000] SBI RFENCE extension detected
> [ 0.000000] earlycon: uart0 at MMIO32 0x000000ffe7014000 (options '115200n8')
> [ 0.000000] printk: bootconsole [uart0] enabled
> [ 0.000000] efi: UEFI not found.
> [ 0.000000] OF: reserved mem: 0x0000000000000000..0x000000000001ffff (128 KiB) nomap non-reusable mmode_resv0@0
> [ 0.000000] OF: reserved mem: 0x0000000000020000..0x000000000003ffff (128 KiB) nomap non-reusable mmode_resv1@...00
> [ 0.000000] Zone ranges:
> [ 0.000000] DMA32 [mem 0x0000000000000000-0x00000000ffffffff]
> [ 0.000000] Normal [mem 0x0000000100000000-0x00000001ffffffff]
> [ 0.000000] Movable zone start for each node
> [ 0.000000] Early memory node ranges
> [ 0.000000] node 0: [mem 0x0000000000000000-0x000000000003ffff]
> [ 0.000000] node 0: [mem 0x0000000000040000-0x00000001ffffffff]
> [ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x00000001ffffffff]
> [ 0.000000] SBI HSM extension detected
> [ 0.000000] riscv: base ISA extensions acdfim
> [ 0.000000] riscv: ELF capabilities acdfim
> [ 0.000000] percpu: Embedded 17 pages/cpu s38184 r0 d31448 u69632
> [ 0.000000] Kernel command line: earlycon console=ttyS0,115200
> [ 0.000000] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear)
> [ 0.000000] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, linear)
> [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 2064384
> [ 0.000000] mem auto-init: stack:all(zero), heap alloc:off, heap free:off
> [ 0.000000] software IO TLB: area num 4.
> [ 0.000000] software IO TLB: mapped [mem 0x00000000fbfff000-0x00000000fffff000] (64MB)
> [ 0.000000] Memory: 8145300K/8388608K available (4922K kernel code, 4786K rwdata, 2048K rodata, 2148K init, 393K bss, 243308K reserved, 0K cma-reserved)
> [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
> [ 0.000000] rcu: Preemptible hierarchical RCU implementation.
> [ 0.000000] rcu: RCU event tracing is enabled.
> [ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=4.
> [ 0.000000] Trampoline variant of Tasks RCU enabled.
> [ 0.000000] Tracing variant of Tasks RCU enabled.
> [ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 100 jiffies.
> [ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=4
> [ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
> [ 0.000000] riscv-intc: 64 local interrupts mapped
> [ 0.000000] plic: interrupt-controller@...8000000: mapped 240 interrupts with 4 handlers for 8 contexts.
> [ 0.000000] riscv: providing IPIs using SBI IPI extension
> [ 0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
> [ 0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x1623fa770, max_idle_ns: 881590404476 ns
> [ 0.000001] sched_clock: 64 bits at 3000kHz, resolution 333ns, wraps every 4398046511097ns
> [ 0.008488] Console: colour dummy device 80x25
> [ 0.012944] Kernel panic - not syncing: unexpected interrupt cause
> [ 0.012952] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.5.0-rc3 #1
> [ 0.012964] Hardware name: Sipeed Lichee Pi 4A (DT)
> [ 0.012970] Call Trace:
> [ 0.012976] [<ffffffff80004c38>] walk_stackframe+0x0/0x7e
> [ 0.013002] [<ffffffff804c868c>] dump_stack_lvl+0x34/0x4e
> [ 0.013022] [<ffffffff804c1334>] panic+0xf2/0x292
> [ 0.013035] [<ffffffff802cddc0>] riscv_intc_irq+0x34/0x38
> [ 0.013052] [<ffffffff804c8716>] handle_riscv_irq+0x66/0xa6
> [ 0.059145] ---[ end Kernel panic - not syncing: unexpected interrupt cause ]---
>
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