[PATCH RFC v2 0/4] RISC-V: Add basic eMMC support for BeagleV Ahead

[Drew Fustini]

On Tue, Aug 29, 2023 at 09:56:47AM +0800, Jiexun Wang wrote:
> Date: Mon, 28 Aug 2023 23:05:35 +0800, Jisheng Zhang wrote:
> >On Mon, Aug 28, 2023 at 12:40:16PM +0800, Jiexun Wang wrote:
> >> Hello,
> >> I tested the patch on my LicheePi 4A board.
> >> It can successfully boot with eMMC, but when I use the eMMC more frequently - for instance:
> >> 
> >> $ while true; do /bin/dd if=/dev/zero of=bigfile bs=1024000 count=1024; done &
> >> 
> >> I encounter the following error:
> >> 
> >> sbi_trap_error: hart1: illegal instruction handler failed (error -2)
> >
> >> sbi_trap_error: hart1: mcause=0x0000000000000002 mtval=0x0000000060e2de4f
> >> sbi_trap_error: hart1: mepc=0x000000000001897c mstatus=0x0000000a00001820
> >> sbi_trap_error: hart1: ra=0x00000000000170f8 sp=0x000000000004adc8
> >> sbi_trap_error: hart1: gp=0xffffffff8136ea90 tp=0xffffffd900228000
> >> sbi_trap_error: hart1: s0=0x0000000000000000 s1=0x000000000004ae08
> >> sbi_trap_error: hart1: a0=0x000000003f9aa9bc a1=0x0000000000000004
> >> sbi_trap_error: hart1: a2=0x0000000000000000 a3=0x0000000000000000
> >> sbi_trap_error: hart1: a4=0x0000000000042248 a5=0x00000000000170e5
> >> sbi_trap_error: hart1: a6=0x0000000000000000 a7=0x0000000054494d45
> >> sbi_trap_error: hart1: s2=0x000000000004aee8 s3=0x0000000000000000
> >> sbi_trap_error: hart1: s4=0x000000000004ae08 s5=0x0000000000000000
> >> sbi_trap_error: hart1: s6=0xffffffff813aa240 s7=0x0000000000000080
> >> sbi_trap_error: hart1: s8=0xffffffff80a1b5f0 s9=0x0000000000000000
> >> sbi_trap_error: hart1: s10=0xffffffd9fef5d380 s11=0xffffffff81290a80
> >> sbi_trap_error: hart1: t0=0x0000000a00000820 t1=0x0000000000000000
> >> sbi_trap_error: hart1: t2=0xffffffff80c00318 t3=0x0000000000000001
> >> sbi_trap_error: hart1: t4=0x0000000000000330 t5=0x0000000000000001
> >> sbi_trap_error: hart1: t6=0x0000000000040000
> >> 
> >> My kernel version is v6.5-rc3.
> >> My OpenSBI version is 1.3.
> >> I tried to use other versions of OpenSBI, yet the problem persists. 
> >> Is there a possibility of any underlying bug? Your insights into this would be greatly appreciated.
> >
> >
> >Can you plz try below opensbi?
> 
> I tried the OpenSBI you provided and the issue didn't recur.
> I conducted stress test about 30 minutes and the system appears to be functioning very well.
> Thank you so much for helping me resolve this problem.

That's great!

Jisheng - are these the commits that fix the error?

d98da90a19b5 ("lib: sbi_illegal_insn: Fix FENCE.TSO emulation infinite trap loop")
39d1e698c975 ("lib: sbi_illegal_insn: Add emulation for fence.tso")

thanks,
drew