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From:   Jiexun Wang <wangjiexun@tinylab.org>
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Subject: Re: [PATCH RFC v2 0/4] RISC-V: Add basic eMMC support for BeagleV Ahead
Date:   Mon, 28 Aug 2023 12:40:16 +0800
Message-Id: <20230828044016.109515-1-wangjiexun@tinylab.org>
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Hello,=0D
I tested the patch on my LicheePi 4A board.=0D
It can successfully boot with eMMC, but when I use the eMMC more frequently=
 - for instance:=0D
=0D
$ while true; do /bin/dd if=3D/dev/zero of=3Dbigfile bs=3D1024000 count=3D1=
024; done &=0D
=0D
I encounter the following error:=0D
=0D
sbi_trap_error: hart1: illegal instruction handler failed (error -2)=0D
sbi_trap_error: hart1: mcause=3D0x0000000000000002 mtval=3D0x0000000060e2de=
4f=0D
sbi_trap_error: hart1: mepc=3D0x000000000001897c mstatus=3D0x0000000a000018=
20=0D
sbi_trap_error: hart1: ra=3D0x00000000000170f8 sp=3D0x000000000004adc8=0D
sbi_trap_error: hart1: gp=3D0xffffffff8136ea90 tp=3D0xffffffd900228000=0D
sbi_trap_error: hart1: s0=3D0x0000000000000000 s1=3D0x000000000004ae08=0D
sbi_trap_error: hart1: a0=3D0x000000003f9aa9bc a1=3D0x0000000000000004=0D
sbi_trap_error: hart1: a2=3D0x0000000000000000 a3=3D0x0000000000000000=0D
sbi_trap_error: hart1: a4=3D0x0000000000042248 a5=3D0x00000000000170e5=0D
sbi_trap_error: hart1: a6=3D0x0000000000000000 a7=3D0x0000000054494d45=0D
sbi_trap_error: hart1: s2=3D0x000000000004aee8 s3=3D0x0000000000000000=0D
sbi_trap_error: hart1: s4=3D0x000000000004ae08 s5=3D0x0000000000000000=0D
sbi_trap_error: hart1: s6=3D0xffffffff813aa240 s7=3D0x0000000000000080=0D
sbi_trap_error: hart1: s8=3D0xffffffff80a1b5f0 s9=3D0x0000000000000000=0D
sbi_trap_error: hart1: s10=3D0xffffffd9fef5d380 s11=3D0xffffffff81290a80=0D
sbi_trap_error: hart1: t0=3D0x0000000a00000820 t1=3D0x0000000000000000=0D
sbi_trap_error: hart1: t2=3D0xffffffff80c00318 t3=3D0x0000000000000001=0D
sbi_trap_error: hart1: t4=3D0x0000000000000330 t5=3D0x0000000000000001=0D
sbi_trap_error: hart1: t6=3D0x0000000000040000=0D
=0D
My kernel version is v6.5-rc3.=0D
My OpenSBI version is 1.3.=0D
I tried to use other versions of OpenSBI, yet the problem persists. =0D
Is there a possibility of any underlying bug? Your insights into this would=
 be greatly appreciated.=0D
=0D
Thanks,=0D
Jiexun Wang=0D
=0D