From: Andreas Schwab <schwab@suse.de>
To: Alexandre Ghiti <alex@ghiti.fr>
Cc: linux-riscv@lists.infradead.org
Subject: Re: openSBI 1.7 causes v6.16-rc boot to hang on VisionFive 2
Date: Thu, 10 Jul 2025 14:51:16 +0200 [thread overview]
Message-ID: <mvmms9cgqez.fsf@suse.de> (raw)
In-Reply-To: <4e6cab2e-c18e-4bc3-8a9f-450326324d98@ghiti.fr> (Alexandre Ghiti's message of "Wed, 9 Jul 2025 08:46:24 +0200")
On Jul 09 2025, Alexandre Ghiti wrote:
> Do you have a means to know what happens here (pc, sepc, stval etc)? I
> don't have this board to give it a try.
Apparently disabling unused clocks kills the early console, and booting
with clk_ignore_unused reveals the real bug:
[ 15.362214][ C2] ------------[ cut here ]------------
[ 15.362239][ C2] kernel BUG at arch/riscv/kernel/patch.c:54!
[ 15.362265][ C2] Kernel BUG [#1]
[ 15.362279][ C2] Modules linked in: blake2b_generic xor raid6_pq dmi_sysfs
[ 15.362348][ C2] CPU: 2 UID: 0 PID: 240 Comm: modprobe Not tainted 6.16.0-rc5-113-default #1 PREEMPT(voluntary) openSUSE Tumbleweed (unreleased) c33d66cc520b3125c763ff4496b8fbb5b54061ef
[ 15.362389][ C2] Hardware name: starfive StarFive VisionFive 2 v1.2A/StarFive VisionFive 2 v1.2A, BIOS 2025.07 07/01/2025
[ 15.362406][ C2] epc : __patch_insn_write+0x3d8/0x3e8
[ 15.362457][ C2] ra : __patch_insn_write+0x132/0x3e8
[ 15.362487][ C2] epc : ffffffff9d61ade8 ra : ffffffff9d61ab42 sp : ffffffc6005ab920
[ 15.362506][ C2] gp : ffffffff9fe6e900 tp : ffffffd6c0f96e40 t0 : ffffffff9d622468
[ 15.362525][ C2] t1 : 0000000000006000 t2 : 0000000000001000 s0 : ffffffc6005ab980
[ 15.362542][ C2] s1 : 0000000000000000 a0 : 0000000000000000 a1 : 0000000020345c44
[ 15.362558][ C2] a2 : 0000000000000004 a3 : ffffffff9e46f388 a4 : 0000000000000000
[ 15.362574][ C2] a5 : 0000000000000000 a6 : ffffffffa01789f8 a7 : 0000000054494d45
[ 15.362591][ C2] s2 : 0000000020345c44 s3 : 0000000000000c44 s4 : 0000000000000c48
[ 15.362608][ C2] s5 : 0000000000000fff s6 : 0000000000002000 s7 : ffffffff9f2358f8
[ 15.362624][ C2] s8 : 0000000000000004 s9 : 0000000020347484 s10: 0000000000000000
[ 15.362640][ C2] s11: ffffffff203946d8 t3 : 0000000000000001 t4 : ffffffd6c0f96f00
[ 15.362658][ C2] t5 : 0000000000000400 t6 : 0000000000000000
[ 15.362671][ C2] status: 0000000200000120 badaddr: 0000000000000000 cause: 0000000000000003
[ 15.362690][ C2] [<ffffffff9d61ade8>] __patch_insn_write+0x3d8/0x3e8
[ 15.362726][ C2] [<ffffffff9d61afa8>] patch_text_nosync+0x48/0x80
[ 15.362760][ C2] [<ffffffff9d614f92>] riscv_cpufeature_patch_func+0xc2/0x130
[ 15.362795][ C2] [<ffffffff9d614108>] _apply_alternatives+0x90/0xb8
[ 15.362825][ C2] [<ffffffff9d61431c>] apply_module_alternatives+0x14/0x28
[ 15.362855][ C2] [<ffffffff9d62032e>] module_finalize+0x66/0xa0
[ 15.362887][ C2] [<ffffffff9d714a32>] load_module+0x151a/0x1f48
[ 15.362914][ C2] [<ffffffff9d7156a2>] init_module_from_file+0x82/0xe0
[ 15.362940][ C2] [<ffffffff9d71594a>] __riscv_sys_finit_module+0x24a/0x348
[ 15.362967][ C2] [<ffffffff9e257796>] do_trap_ecall_u+0x3be/0x498
[ 15.362997][ C2] [<ffffffff9e266414>] handle_exception+0x154/0x160
[ 15.363054][ C2] Code: 17a6 8726 97b6 7863 00d7 b683 030a 05b3 40d7 bfa9 (9002) 4605
[ 15.363076][ C2] ---[ end trace 0000000000000000 ]---
[ 15.363092][ C2] Kernel panic - not syncing: Fatal exception in interrupt
[ 15.363107][ C2] SMP: stopping secondary CPUs
[ 15.363145][ C2] Kernel Offset: 0x1d600000 from 0xffffffff80000000
So it looks like the insn decoder is broken. Instrumenting the kernel
shows the following insns being emulated:
[ 7.318366][ C0] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c5ba14a INSN=c190
[ 7.318401][ C0] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c5ba146 INSN=c190
[ 7.318459][ C0] handle_scalar_misaligned_load: PC=riscv_cpufeature_patch_func+0x32/0x138 ADDR=ffffffff0c5ba152 INSN=c4a903
[ 7.476473][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a7c3 INSN=c59023
[ 7.476519][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a7bd INSN=c190
[ 7.476538][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a7b9 INSN=c190
[ 7.476556][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a7b3 INSN=c59023
[ 7.476575][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a7ad INSN=c190
[ 7.476593][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a7a9 INSN=c190
[ 7.476612][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a79d INSN=c190
[ 7.476630][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a799 INSN=c190
[ 7.476648][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a793 INSN=c59023
[ 7.476666][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a78d INSN=c190
[ 7.476684][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a789 INSN=c190
[ 7.476703][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a77d INSN=c190
[ 7.476722][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a779 INSN=c190
[ 7.476740][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a773 INSN=c59023
[ 7.476758][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a76d INSN=c190
[ 7.476777][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a769 INSN=c190
[ 7.476795][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a75d INSN=c190
[ 7.476814][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a753 INSN=c59023
[ 7.476832][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a74d INSN=c190
[ 7.476850][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a749 INSN=c190
[ 7.476868][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a743 INSN=c59023
[ 7.476887][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a73d INSN=c190
[ 7.476906][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a733 INSN=c59023
[ 7.476924][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a72d INSN=c190
[ 7.476942][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a729 INSN=c190
[ 7.476961][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a723 INSN=c59023
[ 7.476979][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a7a3 INSN=c59023
[ 7.476998][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a713 INSN=c59023
[ 7.477018][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a70d INSN=c190
[ 7.477036][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a709 INSN=c190
[ 7.477055][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a703 INSN=c59023
[ 7.477074][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a6f9 INSN=c190
[ 7.477093][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a783 INSN=c59023
[ 7.477111][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a6f3 INSN=c59023
[ 7.477130][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a6ed INSN=c190
[ 7.477149][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a6e9 INSN=c190
[ 7.477168][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a6e3 INSN=c59023
[ 7.477187][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a6d9 INSN=c190
[ 7.477205][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a763 INSN=c59023
[ 7.477224][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a6d3 INSN=c59023
[ 7.477243][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a6cd INSN=c190
[ 7.477262][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a759 INSN=c190
[ 7.477280][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a6c9 INSN=c190
[ 7.477299][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a6c3 INSN=c59023
[ 7.477318][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a6bd INSN=c190
[ 7.477337][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a6b9 INSN=c190
[ 7.477356][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a6b3 INSN=c59023
[ 7.477374][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a6ad INSN=c190
[ 7.477393][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a739 INSN=c190
[ 7.477411][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a6a9 INSN=c190
[ 7.477430][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a6a3 INSN=c59023
[ 7.477449][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a69d INSN=c190
[ 8.111827][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a699 INSN=c190
[ 8.111852][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a693 INSN=c59023
[ 8.111871][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a71d INSN=c190
[ 8.111890][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a68d INSN=c190
[ 8.111909][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a719 INSN=c190
[ 8.111928][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a689 INSN=c190
[ 8.111946][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a683 INSN=c59023
[ 8.111965][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a67d INSN=c190
[ 8.111984][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a679 INSN=c190
[ 8.112003][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a673 INSN=c59023
[ 8.112022][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a6fd INSN=c190
[ 8.112040][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a66d INSN=c190
[ 8.112059][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a669 INSN=c190
[ 8.112078][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a663 INSN=c59023
[ 8.112097][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a65d INSN=c190
[ 8.112116][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a659 INSN=c190
[ 8.112135][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a653 INSN=c59023
[ 8.112153][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a6dd INSN=c190
[ 8.112171][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a64d INSN=c190
[ 8.112190][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a649 INSN=c190
[ 8.112209][ C2] handle_scalar_misaligned_store: PC=apply_16_bit_accumulation+0xe/0x48 ADDR=ffffffff0c84a643 INSN=c59023
[ 8.112228][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a63d INSN=c190
[ 8.112247][ C2] handle_scalar_misaligned_store: PC=apply_32_bit_accumulation+0x10/0x48 ADDR=ffffffff0c84a639 INSN=c190
[ 8.113036][ C2] handle_scalar_misaligned_store: PC=apply_r_riscv_64_rela+0x14/0x28 ADDR=ffffffff0c71ad0c INSN=e190
[ 8.113062][ C2] handle_scalar_misaligned_store: PC=apply_r_riscv_64_rela+0x14/0x28 ADDR=ffffffff0c71ad34 INSN=e190
[ 8.113078][ C2] handle_scalar_misaligned_store: PC=apply_r_riscv_64_rela+0x14/0x28 ADDR=ffffffff0c71ad3c INSN=e190
[ 8.436515][ C2] handle_scalar_misaligned_load: PC=riscv_cpufeature_patch_func+0x32/0x138 ADDR=ffffffff0c84a645 INSN=c4a903
[ 8.436556][ C2] handle_scalar_misaligned_load: PC=riscv_cpufeature_patch_func+0x36/0x138 ADDR=ffffffff0c84a641 INSN=84d583
[ 8.436575][ C2] handle_scalar_misaligned_load: PC=riscv_cpufeature_patch_func+0x9a/0x138 ADDR=ffffffff0c84a639 INSN=4a983
[ 8.436594][ C2] handle_scalar_misaligned_load: PC=riscv_cpufeature_patch_func+0x9e/0x138 ADDR=ffffffff0c84a63d INSN=44ac83
[ 8.436627][ C2] handle_scalar_misaligned_load: PC=riscv_cpufeature_patch_func+0xb2/0x138 ADDR=ffffffff0c84a643 INSN=a4d603
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
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next prev parent reply other threads:[~2025-08-12 22:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-08 10:21 openSBI 1.7 causes v6.16-rc boot to hang on VisionFive 2 Andreas Schwab
2025-07-09 6:46 ` Alexandre Ghiti
2025-07-09 7:21 ` Andreas Schwab
2025-07-10 10:21 ` Andreas Schwab
2025-07-10 12:51 ` Andreas Schwab [this message]
2025-07-10 14:56 ` Andreas Schwab
-- strict thread matches above, loose matches on Subject: below --
2025-07-08 9:53 Andreas Schwab
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