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From: Pu Lehui <pulehui@huawei.com>
To: Chen Pei <cp0613@linux.alibaba.com>
Cc: <ast@kernel.org>, <daniel@iogearbox.net>, <andrii@kernel.org>,
	<memxor@gmail.com>, <bjorn@kernel.org>, <puranjay@kernel.org>,
	<eddyz87@gmail.com>, <martin.lau@linux.dev>, <song@kernel.org>,
	<yonghong.song@linux.dev>, <jolsa@kernel.org>,
	<emil@etsalapatis.com>, <pjw@kernel.org>, <palmer@dabbelt.com>,
	<shuah@kernel.org>, <guoren@kernel.org>, <bpf@vger.kernel.org>,
	<linux-riscv@lists.infradead.org>,
	<linux-kselftest@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH bpf-next 1/2] bpf, riscv: Add support for signed arena loads
Date: Wed, 19 Aug 2026 11:41:21 +0800	[thread overview]
Message-ID: <4ba94268-cd39-438c-a788-a5b75cfd8813@huawei.com> (raw)
In-Reply-To: <c5441b7e-3d20-4e4e-a225-7478f7fb9d6d@huawei.com>

oops

need to revert this reviewed-by

On 2026/8/18 22:27, Pu Lehui wrote:
> 
> 
> On 2026/8/17 15:24, Chen Pei wrote:
>> Signed loads from arena memory are currently rejected on riscv64, as
>> bpf_jit_supports_insn() refuses BPF_MEMSX loads when in_arena is set,
>> while x86 and arm64 gained support for them in v6.18. Compilers such
>> as GCC-14 are free to generate signed loads into arena memory, which
>> breaks loading of otherwise valid BPF programs on riscv64.
>>
>> Implement BPF_PROBE_MEM32SX support in the RV64 JIT by reusing the
>> existing arena handling: the arena base (RV_REG_ARENA) is added to
>> the source register and the load is emitted with sign extension
>> (lb/lh/lw). Add BPF_PROBE_MEM32SX to the add_exception_handler()
>> mode gate so that faulting loads get an exception table entry which
>> clears the destination register and resumes execution.
>>
>> Verified by running the arena LDSX selftests (arena_ldsx_disasm,
>> arena_ldsx_exception, arena_ldsx_s8/s16/s32) on riscv64 QEMU, all
>> passing.
>>
>> Signed-off-by: Chen Pei <cp0613@linux.alibaba.com>
>> ---
>>   arch/riscv/net/bpf_jit_comp64.c | 15 +++++++++------
>>   1 file changed, 9 insertions(+), 6 deletions(-)
>>
>> diff --git a/arch/riscv/net/bpf_jit_comp64.c 
>> b/arch/riscv/net/bpf_jit_comp64.c
>> index f9d5347ba966..5786f7dfc8a7 100644
>> --- a/arch/riscv/net/bpf_jit_comp64.c
>> +++ b/arch/riscv/net/bpf_jit_comp64.c
>> @@ -777,6 +777,7 @@ static int add_exception_handler(const struct 
>> bpf_insn *insn, int dst_reg,
>>       if (BPF_MODE(insn->code) != BPF_PROBE_MEM &&
>>           BPF_MODE(insn->code) != BPF_PROBE_MEMSX &&
>>           BPF_MODE(insn->code) != BPF_PROBE_MEM32 &&
>> +        BPF_MODE(insn->code) != BPF_PROBE_MEM32SX &&
>>           BPF_MODE(insn->code) != BPF_PROBE_ATOMIC)
>>           return 0;
>> @@ -1902,13 +1903,19 @@ int bpf_jit_emit_insn(const struct bpf_insn 
>> *insn, struct rv_jit_context *ctx,
>>       case BPF_LDX | BPF_PROBE_MEM32 | BPF_H:
>>       case BPF_LDX | BPF_PROBE_MEM32 | BPF_W:
>>       case BPF_LDX | BPF_PROBE_MEM32 | BPF_DW:
>> +    /* LDX | PROBE_MEM32SX: dst = *(signed size *)(src + RV_REG_ARENA 
>> + off) */
>> +    case BPF_LDX | BPF_PROBE_MEM32SX | BPF_B:
>> +    case BPF_LDX | BPF_PROBE_MEM32SX | BPF_H:
>> +    case BPF_LDX | BPF_PROBE_MEM32SX | BPF_W:
>>       {
>>           bool sign_ext;
>>           sign_ext = BPF_MODE(insn->code) == BPF_MEMSX ||
>> -               BPF_MODE(insn->code) == BPF_PROBE_MEMSX;
>> +               BPF_MODE(insn->code) == BPF_PROBE_MEMSX ||
>> +               BPF_MODE(insn->code) == BPF_PROBE_MEM32SX;
>> -        if (BPF_MODE(insn->code) == BPF_PROBE_MEM32) {
>> +        if (BPF_MODE(insn->code) == BPF_PROBE_MEM32 ||
>> +            BPF_MODE(insn->code) == BPF_PROBE_MEM32SX) {
>>               emit_add(RV_REG_T2, rs, RV_REG_ARENA, ctx);
>>               rs = RV_REG_T2;
>>           }
>> @@ -2126,10 +2133,6 @@ bool bpf_jit_supports_insn(struct bpf_insn 
>> *insn, bool in_arena)
>>               if (insn->imm == BPF_CMPXCHG)
>>                   return rv_ext_enabled(ZACAS);
>>               break;
>> -        case BPF_LDX | BPF_MEMSX | BPF_B:
>> -        case BPF_LDX | BPF_MEMSX | BPF_H:
>> -        case BPF_LDX | BPF_MEMSX | BPF_W:
>> -            return false;
>>           }
>>       }
> 
> Reviewed-by: Pu Lehui <pulehui@huawei.com>
> 

Hi Chen Pei,

It's happy for the verifier_ldsx, but it not happy for the other test, 
pls take a look.

[2026-08-19 11:33:11]  root@(none):/mnt/bpf# ./test_progs -a arena_atomics
[2026-08-19 11:33:18]
[2026-08-19 11:33:20]  [   34.529770] bpf_testmod: loading out-of-tree 
module taints kernel.
[2026-08-19 11:33:20]  [   34.530186] bpf_testmod: module verification 
failed: signature and/or required key missing - tainting kernel
[2026-08-19 11:33:21]  [   35.541256] ------------[ cut here ]------------
[2026-08-19 11:33:21]  [   35.541573] WARNING: 
arch/riscv/net/bpf_jit_comp64.c:915 at add_exception_handler+0xce/0xf0, 
CPU#0: test_progs/122
[2026-08-19 11:33:21]  [   35.544546] Modules linked in: bpf_testmod(OE)
[2026-08-19 11:33:21]  [   35.545885] CPU: 0 UID: 0 PID: 122 Comm: 
test_progs Tainted: G           OE 
7.2.0-next-20260818-00007-gc29447b2149d #8 PREEMPTLAZY
[2026-08-19 11:33:21]  [   35.546625] Tainted: [O]=OOT_MODULE, 
[E]=UNSIGNED_MODULE
[2026-08-19 11:33:21]  [   35.546892] Hardware name: riscv-virtio,qemu (DT)
[2026-08-19 11:33:21]  [   35.547240] epc : add_exception_handler+0xce/0xf0
[2026-08-19 11:33:21]  [   35.547538]  ra : bpf_jit_emit_insn+0x5a8/0x2d18
[2026-08-19 11:33:21]  [   35.547799] epc : ffffffff8002571e ra : 
ffffffff8002b3c8 sp : ff20000000eeb700
[2026-08-19 11:33:21]  [   35.548128]  gp : ffffffff81db8ed0 tp : 
ff60000083130d40 t0 : ffffffff8001e650
[2026-08-19 11:33:21]  [   35.548454]  t1 : 0000000000000007 t2 : 
0000000000000040 s0 : ff20000000eeb710
[2026-08-19 11:33:21]  [   35.548785]  s1 : 00000000000000fb a0 : 
0000000000000007 a1 : 000000000000000a
[2026-08-19 11:33:21]  [   35.549114]  a2 : ff600000809549a0 a3 : 
ffffffff78000790 a4 : ff60000080a8bc24
[2026-08-19 11:33:21]  [   35.549439]  a5 : 0000000000000087 a6 : 
ffffffff78000664 a7 : 0000000000000089
[2026-08-19 11:33:21]  [   35.549765]  s2 : ff600000809549a0 s3 : 
ff2000000017d1e8 s4 : 0000000000000000
[2026-08-19 11:33:21]  [   35.550094]  s5 : 0000000000000001 s6 : 
0000000000000001 s7 : 0000000000000031
[2026-08-19 11:33:21]  [   35.550419]  s8 : ff60000084994800 s9 : 
0000000000000000 s10: 0000000000000000
[2026-08-19 11:33:21]  [   35.550737]  s11: 000000084290e9f4 t3 : 
0000000000000000 t4 : 000000000000000b
[2026-08-19 11:33:21]  [   35.551079]  t5 : 0000000000000008 t6 : 
ff600000808fc3a0 ssp : 0000000000000000
[2026-08-19 11:33:21]  [   35.551409] status: 0000000200000120 badaddr: 
ffffffff8002571e cause: 0000000000000003
[2026-08-19 11:33:21]  [   35.551882] [<ffffffff8002571e>] 
add_exception_handler+0xce/0xf0
[2026-08-19 11:33:21]  [   35.552318] [<ffffffff8002b3c8>] 
bpf_jit_emit_insn+0x5a8/0x2d18
[2026-08-19 11:33:21]  [   35.552602] [<ffffffff80024f1a>] 
bpf_int_jit_compile+0x9a/0x480
[2026-08-19 11:33:21]  [   35.552888] [<ffffffff801a3d0c>] 
__bpf_prog_select_runtime+0x10c/0x1d8
[2026-08-19 11:33:21]  [   35.553197] [<ffffffff801d54fa>] 
bpf_check+0xaca/0x31b8
[2026-08-19 11:33:21]  [   35.553459] [<ffffffff801a8436>] 
bpf_prog_load+0x546/0xad0
[2026-08-19 11:33:21]  [   35.553720] [<ffffffff801af850>] 
__sys_bpf+0x1948/0x2c38
[2026-08-19 11:33:21]  [   35.553974] [<ffffffff801b0b6a>] 
__riscv_sys_bpf+0x2a/0x40
[2026-08-19 11:33:21]  [   35.554238] [<ffffffff80a91872>] 
do_trap_ecall_u+0x1ea/0x398
[2026-08-19 11:33:21]  [   35.554528] [<ffffffff80aa088c>] 
handle_exception+0x16c/0x178
[2026-08-19 11:33:21]  [   35.555320] ---[ end trace 0000000000000000 ]---
[2026-08-19 11:33:21]  serial_test_arena_atomics:PASS:arena atomics 
skeleton open 0 nsec
[2026-08-19 11:33:21]  libbpf: prog 'add': BPF program load failed: 
-ENOTSUPP
[2026-08-19 11:33:21]  libbpf: prog 'add': -- BEGIN PROG LOAD LOG --
[2026-08-19 11:33:21]  processed 37 insns (limit 1000000) 
max_states_per_insn 0 total_states 1 peak_states 1 mark_read 0
[2026-08-19 11:33:21]  -- END PROG LOAD LOG --
[2026-08-19 11:33:21]  libbpf: prog 'add': failed to load: -ENOTSUPP
[2026-08-19 11:33:21]  libbpf: failed to load object 'arena_atomics'
[2026-08-19 11:33:21]  libbpf: failed to load BPF skeleton 
'arena_atomics': -ENOTSUPP
[2026-08-19 11:33:21]  serial_test_arena_atomics:FAIL:arena atomics 
skeleton load unexpected error: -524 (errno 524)
[2026-08-19 11:33:21]  #1       arena_atomics:FAIL
[2026-08-19 11:33:21]
[2026-08-19 11:33:21]  All error logs:
[2026-08-19 11:33:21]  serial_test_arena_atomics:PASS:arena atomics 
skeleton open 0 nsec
[2026-08-19 11:33:21]  libbpf: prog 'add': BPF program load failed: 
-ENOTSUPP
[2026-08-19 11:33:21]  libbpf: prog 'add': -- BEGIN PROG LOAD LOG --
[2026-08-19 11:33:21]  processed 37 insns (limit 1000000) 
max_states_per_insn 0 total_states 1 peak_states 1 mark_read 0
[2026-08-19 11:33:21]  -- END PROG LOAD LOG --
[2026-08-19 11:33:21]  libbpf: prog 'add': failed to load: -ENOTSUPP
[2026-08-19 11:33:21]  libbpf: failed to load object 'arena_atomics'
[2026-08-19 11:33:21]  libbpf: failed to load BPF skeleton 
'arena_atomics': -ENOTSUPP
[2026-08-19 11:33:21]  serial_test_arena_atomics:FAIL:arena atomics 
skeleton load unexpected error: -524 (errno 524)
[2026-08-19 11:33:21]  #1       arena_atomics:FAIL
[2026-08-19 11:33:21]  Summary: 0/0 PASSED, 0 SKIPPED, 1/0 FAILED
[2026-08-19 11:33:21]  root@(none):/mnt/bpf#

WARNING: multiple messages have this Message-ID (diff)
From: Pu Lehui <pulehui@huawei.com>
To: Chen Pei <cp0613@linux.alibaba.com>
Cc: <ast@kernel.org>, <daniel@iogearbox.net>, <andrii@kernel.org>,
	<memxor@gmail.com>, <bjorn@kernel.org>, <puranjay@kernel.org>,
	<eddyz87@gmail.com>, <martin.lau@linux.dev>, <song@kernel.org>,
	<yonghong.song@linux.dev>, <jolsa@kernel.org>,
	<emil@etsalapatis.com>, <pjw@kernel.org>, <palmer@dabbelt.com>,
	<shuah@kernel.org>, <guoren@kernel.org>, <bpf@vger.kernel.org>,
	<linux-riscv@lists.infradead.org>,
	<linux-kselftest@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH bpf-next 1/2] bpf, riscv: Add support for signed arena loads
Date: Wed, 19 Aug 2026 11:41:21 +0800	[thread overview]
Message-ID: <4ba94268-cd39-438c-a788-a5b75cfd8813@huawei.com> (raw)
In-Reply-To: <c5441b7e-3d20-4e4e-a225-7478f7fb9d6d@huawei.com>

oops

need to revert this reviewed-by

On 2026/8/18 22:27, Pu Lehui wrote:
> 
> 
> On 2026/8/17 15:24, Chen Pei wrote:
>> Signed loads from arena memory are currently rejected on riscv64, as
>> bpf_jit_supports_insn() refuses BPF_MEMSX loads when in_arena is set,
>> while x86 and arm64 gained support for them in v6.18. Compilers such
>> as GCC-14 are free to generate signed loads into arena memory, which
>> breaks loading of otherwise valid BPF programs on riscv64.
>>
>> Implement BPF_PROBE_MEM32SX support in the RV64 JIT by reusing the
>> existing arena handling: the arena base (RV_REG_ARENA) is added to
>> the source register and the load is emitted with sign extension
>> (lb/lh/lw). Add BPF_PROBE_MEM32SX to the add_exception_handler()
>> mode gate so that faulting loads get an exception table entry which
>> clears the destination register and resumes execution.
>>
>> Verified by running the arena LDSX selftests (arena_ldsx_disasm,
>> arena_ldsx_exception, arena_ldsx_s8/s16/s32) on riscv64 QEMU, all
>> passing.
>>
>> Signed-off-by: Chen Pei <cp0613@linux.alibaba.com>
>> ---
>>   arch/riscv/net/bpf_jit_comp64.c | 15 +++++++++------
>>   1 file changed, 9 insertions(+), 6 deletions(-)
>>
>> diff --git a/arch/riscv/net/bpf_jit_comp64.c 
>> b/arch/riscv/net/bpf_jit_comp64.c
>> index f9d5347ba966..5786f7dfc8a7 100644
>> --- a/arch/riscv/net/bpf_jit_comp64.c
>> +++ b/arch/riscv/net/bpf_jit_comp64.c
>> @@ -777,6 +777,7 @@ static int add_exception_handler(const struct 
>> bpf_insn *insn, int dst_reg,
>>       if (BPF_MODE(insn->code) != BPF_PROBE_MEM &&
>>           BPF_MODE(insn->code) != BPF_PROBE_MEMSX &&
>>           BPF_MODE(insn->code) != BPF_PROBE_MEM32 &&
>> +        BPF_MODE(insn->code) != BPF_PROBE_MEM32SX &&
>>           BPF_MODE(insn->code) != BPF_PROBE_ATOMIC)
>>           return 0;
>> @@ -1902,13 +1903,19 @@ int bpf_jit_emit_insn(const struct bpf_insn 
>> *insn, struct rv_jit_context *ctx,
>>       case BPF_LDX | BPF_PROBE_MEM32 | BPF_H:
>>       case BPF_LDX | BPF_PROBE_MEM32 | BPF_W:
>>       case BPF_LDX | BPF_PROBE_MEM32 | BPF_DW:
>> +    /* LDX | PROBE_MEM32SX: dst = *(signed size *)(src + RV_REG_ARENA 
>> + off) */
>> +    case BPF_LDX | BPF_PROBE_MEM32SX | BPF_B:
>> +    case BPF_LDX | BPF_PROBE_MEM32SX | BPF_H:
>> +    case BPF_LDX | BPF_PROBE_MEM32SX | BPF_W:
>>       {
>>           bool sign_ext;
>>           sign_ext = BPF_MODE(insn->code) == BPF_MEMSX ||
>> -               BPF_MODE(insn->code) == BPF_PROBE_MEMSX;
>> +               BPF_MODE(insn->code) == BPF_PROBE_MEMSX ||
>> +               BPF_MODE(insn->code) == BPF_PROBE_MEM32SX;
>> -        if (BPF_MODE(insn->code) == BPF_PROBE_MEM32) {
>> +        if (BPF_MODE(insn->code) == BPF_PROBE_MEM32 ||
>> +            BPF_MODE(insn->code) == BPF_PROBE_MEM32SX) {
>>               emit_add(RV_REG_T2, rs, RV_REG_ARENA, ctx);
>>               rs = RV_REG_T2;
>>           }
>> @@ -2126,10 +2133,6 @@ bool bpf_jit_supports_insn(struct bpf_insn 
>> *insn, bool in_arena)
>>               if (insn->imm == BPF_CMPXCHG)
>>                   return rv_ext_enabled(ZACAS);
>>               break;
>> -        case BPF_LDX | BPF_MEMSX | BPF_B:
>> -        case BPF_LDX | BPF_MEMSX | BPF_H:
>> -        case BPF_LDX | BPF_MEMSX | BPF_W:
>> -            return false;
>>           }
>>       }
> 
> Reviewed-by: Pu Lehui <pulehui@huawei.com>
> 

Hi Chen Pei,

It's happy for the verifier_ldsx, but it not happy for the other test, 
pls take a look.

[2026-08-19 11:33:11]  root@(none):/mnt/bpf# ./test_progs -a arena_atomics
[2026-08-19 11:33:18]
[2026-08-19 11:33:20]  [   34.529770] bpf_testmod: loading out-of-tree 
module taints kernel.
[2026-08-19 11:33:20]  [   34.530186] bpf_testmod: module verification 
failed: signature and/or required key missing - tainting kernel
[2026-08-19 11:33:21]  [   35.541256] ------------[ cut here ]------------
[2026-08-19 11:33:21]  [   35.541573] WARNING: 
arch/riscv/net/bpf_jit_comp64.c:915 at add_exception_handler+0xce/0xf0, 
CPU#0: test_progs/122
[2026-08-19 11:33:21]  [   35.544546] Modules linked in: bpf_testmod(OE)
[2026-08-19 11:33:21]  [   35.545885] CPU: 0 UID: 0 PID: 122 Comm: 
test_progs Tainted: G           OE 
7.2.0-next-20260818-00007-gc29447b2149d #8 PREEMPTLAZY
[2026-08-19 11:33:21]  [   35.546625] Tainted: [O]=OOT_MODULE, 
[E]=UNSIGNED_MODULE
[2026-08-19 11:33:21]  [   35.546892] Hardware name: riscv-virtio,qemu (DT)
[2026-08-19 11:33:21]  [   35.547240] epc : add_exception_handler+0xce/0xf0
[2026-08-19 11:33:21]  [   35.547538]  ra : bpf_jit_emit_insn+0x5a8/0x2d18
[2026-08-19 11:33:21]  [   35.547799] epc : ffffffff8002571e ra : 
ffffffff8002b3c8 sp : ff20000000eeb700
[2026-08-19 11:33:21]  [   35.548128]  gp : ffffffff81db8ed0 tp : 
ff60000083130d40 t0 : ffffffff8001e650
[2026-08-19 11:33:21]  [   35.548454]  t1 : 0000000000000007 t2 : 
0000000000000040 s0 : ff20000000eeb710
[2026-08-19 11:33:21]  [   35.548785]  s1 : 00000000000000fb a0 : 
0000000000000007 a1 : 000000000000000a
[2026-08-19 11:33:21]  [   35.549114]  a2 : ff600000809549a0 a3 : 
ffffffff78000790 a4 : ff60000080a8bc24
[2026-08-19 11:33:21]  [   35.549439]  a5 : 0000000000000087 a6 : 
ffffffff78000664 a7 : 0000000000000089
[2026-08-19 11:33:21]  [   35.549765]  s2 : ff600000809549a0 s3 : 
ff2000000017d1e8 s4 : 0000000000000000
[2026-08-19 11:33:21]  [   35.550094]  s5 : 0000000000000001 s6 : 
0000000000000001 s7 : 0000000000000031
[2026-08-19 11:33:21]  [   35.550419]  s8 : ff60000084994800 s9 : 
0000000000000000 s10: 0000000000000000
[2026-08-19 11:33:21]  [   35.550737]  s11: 000000084290e9f4 t3 : 
0000000000000000 t4 : 000000000000000b
[2026-08-19 11:33:21]  [   35.551079]  t5 : 0000000000000008 t6 : 
ff600000808fc3a0 ssp : 0000000000000000
[2026-08-19 11:33:21]  [   35.551409] status: 0000000200000120 badaddr: 
ffffffff8002571e cause: 0000000000000003
[2026-08-19 11:33:21]  [   35.551882] [<ffffffff8002571e>] 
add_exception_handler+0xce/0xf0
[2026-08-19 11:33:21]  [   35.552318] [<ffffffff8002b3c8>] 
bpf_jit_emit_insn+0x5a8/0x2d18
[2026-08-19 11:33:21]  [   35.552602] [<ffffffff80024f1a>] 
bpf_int_jit_compile+0x9a/0x480
[2026-08-19 11:33:21]  [   35.552888] [<ffffffff801a3d0c>] 
__bpf_prog_select_runtime+0x10c/0x1d8
[2026-08-19 11:33:21]  [   35.553197] [<ffffffff801d54fa>] 
bpf_check+0xaca/0x31b8
[2026-08-19 11:33:21]  [   35.553459] [<ffffffff801a8436>] 
bpf_prog_load+0x546/0xad0
[2026-08-19 11:33:21]  [   35.553720] [<ffffffff801af850>] 
__sys_bpf+0x1948/0x2c38
[2026-08-19 11:33:21]  [   35.553974] [<ffffffff801b0b6a>] 
__riscv_sys_bpf+0x2a/0x40
[2026-08-19 11:33:21]  [   35.554238] [<ffffffff80a91872>] 
do_trap_ecall_u+0x1ea/0x398
[2026-08-19 11:33:21]  [   35.554528] [<ffffffff80aa088c>] 
handle_exception+0x16c/0x178
[2026-08-19 11:33:21]  [   35.555320] ---[ end trace 0000000000000000 ]---
[2026-08-19 11:33:21]  serial_test_arena_atomics:PASS:arena atomics 
skeleton open 0 nsec
[2026-08-19 11:33:21]  libbpf: prog 'add': BPF program load failed: 
-ENOTSUPP
[2026-08-19 11:33:21]  libbpf: prog 'add': -- BEGIN PROG LOAD LOG --
[2026-08-19 11:33:21]  processed 37 insns (limit 1000000) 
max_states_per_insn 0 total_states 1 peak_states 1 mark_read 0
[2026-08-19 11:33:21]  -- END PROG LOAD LOG --
[2026-08-19 11:33:21]  libbpf: prog 'add': failed to load: -ENOTSUPP
[2026-08-19 11:33:21]  libbpf: failed to load object 'arena_atomics'
[2026-08-19 11:33:21]  libbpf: failed to load BPF skeleton 
'arena_atomics': -ENOTSUPP
[2026-08-19 11:33:21]  serial_test_arena_atomics:FAIL:arena atomics 
skeleton load unexpected error: -524 (errno 524)
[2026-08-19 11:33:21]  #1       arena_atomics:FAIL
[2026-08-19 11:33:21]
[2026-08-19 11:33:21]  All error logs:
[2026-08-19 11:33:21]  serial_test_arena_atomics:PASS:arena atomics 
skeleton open 0 nsec
[2026-08-19 11:33:21]  libbpf: prog 'add': BPF program load failed: 
-ENOTSUPP
[2026-08-19 11:33:21]  libbpf: prog 'add': -- BEGIN PROG LOAD LOG --
[2026-08-19 11:33:21]  processed 37 insns (limit 1000000) 
max_states_per_insn 0 total_states 1 peak_states 1 mark_read 0
[2026-08-19 11:33:21]  -- END PROG LOAD LOG --
[2026-08-19 11:33:21]  libbpf: prog 'add': failed to load: -ENOTSUPP
[2026-08-19 11:33:21]  libbpf: failed to load object 'arena_atomics'
[2026-08-19 11:33:21]  libbpf: failed to load BPF skeleton 
'arena_atomics': -ENOTSUPP
[2026-08-19 11:33:21]  serial_test_arena_atomics:FAIL:arena atomics 
skeleton load unexpected error: -524 (errno 524)
[2026-08-19 11:33:21]  #1       arena_atomics:FAIL
[2026-08-19 11:33:21]  Summary: 0/0 PASSED, 0 SKIPPED, 1/0 FAILED
[2026-08-19 11:33:21]  root@(none):/mnt/bpf#

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  reply	other threads:[~2026-08-19  3:41 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-17  7:24 [PATCH bpf-next 0/2] bpf, riscv: Add support for signed arena loads Chen Pei
2026-08-17  7:24 ` Chen Pei
2026-08-17  7:24 ` [PATCH bpf-next 1/2] " Chen Pei
2026-08-17  7:24   ` Chen Pei
2026-08-17  8:16   ` bot+bpf-ci
2026-08-17  8:16     ` bot+bpf-ci
2026-08-18 14:27   ` Pu Lehui
2026-08-18 14:27     ` Pu Lehui
2026-08-19  3:41     ` Pu Lehui [this message]
2026-08-19  3:41       ` Pu Lehui
2026-08-19  8:23       ` Chen Pei
2026-08-19  8:23         ` Chen Pei
2026-08-17  7:24 ` [PATCH bpf-next 2/2] selftests/bpf: Enable arena LDSX tests for riscv64 Chen Pei
2026-08-17  7:24   ` Chen Pei
2026-08-18 14:27   ` Pu Lehui
2026-08-18 14:27     ` Pu Lehui
2026-08-18 14:28 ` [PATCH bpf-next 0/2] bpf, riscv: Add support for signed arena loads Pu Lehui
2026-08-18 14:28   ` Pu Lehui

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