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h=Date:From:To:Cc:Subject:From; b=BuN93lZNU+/EeDebh/JRE2PHFxSu7jMoMrSuWAiNlH37AK93hxJ7PEpcKhc17KVnJ aKBbxDT8P/tu92Z6XuozE64c7OyUc7rD1sLnxm0PjCAJOSvqEAD6zkvCae0OMwSi5f wrp/9/a4xRSnQ1dncjUeB1ZvOGLZJZ2kICCxnAjpKviblW/b8eeiLYm/+tqe5PazP5 oo4NQWk8UlYIW7wMEVkFt916peNTburvFFIAym35gSSWa9emaMWUKGHUIBMrJiwYIG hwUh8j/tveLZDbtQl+kxkjONpFsAlwmvHay6irrnZ9JFPhyPo9i5uso1bihEnB4lk4 5TGkBWZQ49uBw== Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4TQPPy1F91z4wd4; Thu, 1 Feb 2024 14:23:49 +1100 (AEDT) Date: Thu, 1 Feb 2024 14:23:48 +1100 From: Stephen Rothwell To: Daniel Borkmann , Alexei Starovoitov , Andrii Nakryiko , bpf , Networking Cc: Daniel Xu , Linux Kernel Mailing List , Linux Next Mailing List Subject: linux-next: runtime warnings after merge of the bpf-next tree Message-ID: <20240201142348.38ac52d5@canb.auug.org.au> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/IdzMCA.1BtKvMaBdA9eqQJZ"; protocol="application/pgp-signature"; micalg=pgp-sha256 --Sig_/IdzMCA.1BtKvMaBdA9eqQJZ Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi all, After merging the bpf-next tree, today's linux-next build (powerpc pseries_le_defconfig) produced these runtime warnings in my qemu boot tests: ipip: IPv4 and MPLS over IPv4 tunneling driver ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at kernel/bpf/btf.c:8131 register_btf_kfunc_id_set= +0x68/0x74 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.8.0-rc2-03380-gd0c0d80c1162 #2 Hardware name: IBM pSeries (emulated by qemu) POWER8 (raw) 0x4d0200 0xf00= 0004 of:SLOF,HEAD pSeries NIP: c0000000003bfbfc LR: c00000000209ba3c CTR: c00000000209b9a4 REGS: c0000000049bf960 TRAP: 0700 Not tainted (6.8.0-rc2-03380-gd0c0d8= 0c1162) MSR: 8000000002029033 CR: 24000482 XER: 000= 00000 CFAR: c0000000003bfbb0 IRQMASK: 0=20 GPR00: c00000000209ba3c c0000000049bfc00 c0000000015c9900 000000000000001= b=20 GPR04: c0000000012bc980 000000000000019a 000000000000019a 000000000000013= 3=20 GPR08: c000000002969900 0000000000000001 c000000002969900 c00000000296990= 0=20 GPR12: c00000000209b9a4 c000000002b60000 c0000000000110cc 000000000000000= 0=20 GPR16: 0000000000000000 0000000000000000 0000000000000000 000000000000000= 0=20 GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000014cd25= 0=20 GPR24: c000000002003e6c c000000001582c78 000000000000018b c0000000020c106= 0=20 GPR28: 0000000000000000 0000000000000007 c0000000020c10a8 c000000002968f8= 0=20 NIP [c0000000003bfbfc] register_btf_kfunc_id_set+0x68/0x74 LR [c00000000209ba3c] cubictcp_register+0x98/0xc8 Call Trace: [c0000000049bfc30] [c000000000010d58] do_one_initcall+0x80/0x2f8 [c0000000049bfd00] [c000000002005aec] kernel_init_freeable+0x32c/0x520 [c0000000049bfde0] [c0000000000110f8] kernel_init+0x34/0x25c [c0000000049bfe50] [c00000000000debc] ret_from_kernel_user_thread+0x14/0x= 1c --- interrupt: 0 at 0x0 Code: 60420000 3d22ffc6 39290708 7d291a14 89290270 7d290774 79230020 4bff= f8c0 60420000 e9240000 7d290074 7929d182 <0b090000> 3860ffea 4e800020 3c4c0= 121=20 ---[ end trace 0000000000000000 ]--- NET: Registered PF_INET6 protocol family . . . Running code patching self-tests ... ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at kernel/bpf/btf.c:8131 register_btf_kfunc_id_set= +0x68/0x74 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.8.0-rc2-0338= 0-gd0c0d80c1162 #2 Hardware name: IBM pSeries (emulated by qemu) POWER8 (raw) 0x4d0200 0xf00= 0004 of:SLOF,HEAD pSeries NIP: c0000000003bfbfc LR: c00000000204900c CTR: c000000002048fe0 REGS: c0000000049bf970 TRAP: 0700 Tainted: G W (6.8.0-= rc2-03380-gd0c0d80c1162) MSR: 8000000002029033 CR: 24000482 XER: 200= 00000 CFAR: c0000000003bfbb0 IRQMASK: 0=20 GPR00: c00000000204900c c0000000049bfc10 c0000000015c9900 000000000000001= a=20 GPR04: c000000001218fb0 0000000000000002 c0000000049bfc02 0000000035b5793= c=20 GPR08: 0000000000000000 0000000000000001 0000000000000000 000000009e3fcb9= 9=20 GPR12: c000000002048fe0 c000000002b60000 c0000000000110cc 000000000000000= 0=20 GPR16: 0000000000000000 0000000000000000 0000000000000000 000000000000000= 0=20 GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000014cd25= 0=20 GPR24: c000000002003e6c c000000001582c78 000000000000018b c0000000020c106= 8=20 GPR28: 0000000000000000 0000000000000008 c0000000020c10b0 c000000002048fe= 0=20 NIP [c0000000003bfbfc] register_btf_kfunc_id_set+0x68/0x74 LR [c00000000204900c] bpf_rstat_kfunc_init+0x2c/0x40 Call Trace: [c0000000049bfc10] [c0000000020c10b0] 0xc0000000020c10b0 (unreliable) [c0000000049bfc30] [c000000000010d58] do_one_initcall+0x80/0x2f8 [c0000000049bfd00] [c000000002005aec] kernel_init_freeable+0x32c/0x520 [c0000000049bfde0] [c0000000000110f8] kernel_init+0x34/0x25c [c0000000049bfe50] [c00000000000debc] ret_from_kernel_user_thread+0x14/0x= 1c --- interrupt: 0 at 0x0 Code: 60420000 3d22ffc6 39290708 7d291a14 89290270 7d290774 79230020 4bff= f8c0 60420000 e9240000 7d290074 7929d182 <0b090000> 3860ffea 4e800020 3c4c0= 121=20 ---[ end trace 0000000000000000 ]--- registered taskstats version 1 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at kernel/bpf/btf.c:8131 register_btf_kfunc_id_set= +0x68/0x74 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.8.0-rc2-0338= 0-gd0c0d80c1162 #2 Hardware name: IBM pSeries (emulated by qemu) POWER8 (raw) 0x4d0200 0xf00= 0004 of:SLOF,HEAD pSeries NIP: c0000000003bfbfc LR: c000000002050fdc CTR: c000000002050fb8 REGS: c0000000049bf970 TRAP: 0700 Tainted: G W (6.8.0-= rc2-03380-gd0c0d80c1162) MSR: 8000000002029033 CR: 24000482 XER: 200= 00000 CFAR: c0000000003bfbb0 IRQMASK: 0=20 GPR00: c000000002050fdc c0000000049bfc10 c0000000015c9900 000000000000001= d=20 GPR04: c000000001223600 0000000000000002 c0000000049bfc02 fffffffffffe000= 0=20 GPR08: 0000000000000000 0000000000000001 0000000000000000 000000002400024= 2=20 GPR12: c000000002050fb8 c000000002b60000 c0000000000110cc 000000000000000= 0=20 GPR16: 0000000000000000 0000000000000000 0000000000000000 000000000000000= 0=20 GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000014cd25= 0=20 GPR24: c000000002003e6c c000000001582c78 000000000000018b c0000000020c106= 8=20 GPR28: 0000000000000000 0000000000000008 c0000000020c10b0 c000000002050fb= 8=20 NIP [c0000000003bfbfc] register_btf_kfunc_id_set+0x68/0x74 LR [c000000002050fdc] bpf_fs_kfuncs_init+0x24/0x38 Call Trace: [c0000000049bfc10] [c0000000020c10b0] 0xc0000000020c10b0 (unreliable) [c0000000049bfc30] [c000000000010d58] do_one_initcall+0x80/0x2f8 [c0000000049bfd00] [c000000002005aec] kernel_init_freeable+0x32c/0x520 [c0000000049bfde0] [c0000000000110f8] kernel_init+0x34/0x25c [c0000000049bfe50] [c00000000000debc] ret_from_kernel_user_thread+0x14/0x= 1c --- interrupt: 0 at 0x0 Code: 60420000 3d22ffc6 39290708 7d291a14 89290270 7d290774 79230020 4bff= f8c0 60420000 e9240000 7d290074 7929d182 <0b090000> 3860ffea 4e800020 3c4c0= 121=20 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at kernel/bpf/btf.c:8131 register_btf_kfunc_id_set= +0x68/0x74 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.8.0-rc2-0338= 0-gd0c0d80c1162 #2 Hardware name: IBM pSeries (emulated by qemu) POWER8 (raw) 0x4d0200 0xf00= 0004 of:SLOF,HEAD pSeries NIP: c0000000003bfbfc LR: c000000002050fa4 CTR: c000000002050f80 REGS: c0000000049bf970 TRAP: 0700 Tainted: G W (6.8.0-= rc2-03380-gd0c0d80c1162) MSR: 8000000002029033 CR: 24000482 XER: 200= 00000 CFAR: c0000000003bfbb0 IRQMASK: 0=20 GPR00: c000000002050fa4 c0000000049bfc10 c0000000015c9900 000000000000001= a=20 GPR04: c0000000012235e8 0000000000000002 c0000000049bfc02 fffffffffffe000= 0=20 GPR08: 0000000000000000 0000000000000001 0000000000000000 000000002400024= 2=20 GPR12: c000000002050f80 c000000002b60000 c0000000000110cc 000000000000000= 0=20 GPR16: 0000000000000000 0000000000000000 0000000000000000 000000000000000= 0=20 GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000014cd25= 0=20 GPR24: c000000002003e6c c000000001582c78 000000000000018b c0000000020c106= 8=20 GPR28: 0000000000000000 0000000000000008 c0000000020c10b0 c000000002050f8= 0=20 NIP [c0000000003bfbfc] register_btf_kfunc_id_set+0x68/0x74 LR [c000000002050fa4] bpf_key_sig_kfuncs_init+0x24/0x38 Call Trace: [c0000000049bfc10] [c0000000020c10b0] 0xc0000000020c10b0 (unreliable) [c0000000049bfc30] [c000000000010d58] do_one_initcall+0x80/0x2f8 [c0000000049bfd00] [c000000002005aec] kernel_init_freeable+0x32c/0x520 [c0000000049bfde0] [c0000000000110f8] kernel_init+0x34/0x25c [c0000000049bfe50] [c00000000000debc] ret_from_kernel_user_thread+0x14/0x= 1c --- interrupt: 0 at 0x0 Code: 60420000 3d22ffc6 39290708 7d291a14 89290270 7d290774 79230020 4bff= f8c0 60420000 e9240000 7d290074 7929d182 <0b090000> 3860ffea 4e800020 3c4c0= 121=20 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at kernel/bpf/btf.c:8131 register_btf_kfunc_id_set= +0x68/0x74 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.8.0-rc2-0338= 0-gd0c0d80c1162 #2 Hardware name: IBM pSeries (emulated by qemu) POWER8 (raw) 0x4d0200 0xf00= 0004 of:SLOF,HEAD pSeries NIP: c0000000003bfbfc LR: c0000000020517dc CTR: c000000002051790 REGS: c0000000049bf940 TRAP: 0700 Tainted: G W (6.8.0-= rc2-03380-gd0c0d80c1162) MSR: 8000000002029033 CR: 24000422 XER: 200= 00000 CFAR: c0000000003bfbb0 IRQMASK: 0=20 GPR00: c0000000020517dc c0000000049bfbe0 c0000000015c9900 000000000000001= a=20 GPR04: c000000001227670 0000000000000002 c0000000049bfc02 fffffffffffe000= 0=20 GPR08: 0000000000000000 0000000000000001 0000000000000000 000000002400028= 2=20 GPR12: c000000002051790 c000000002b60000 c0000000000110cc 000000000000000= 0=20 GPR16: 0000000000000000 0000000000000000 0000000000000000 000000000000000= 0=20 GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000014cd25= 0=20 GPR24: c000000002003e6c c000000001582c78 000000000000018b c0000000020c106= 8=20 GPR28: 0000000000000000 0000000000000008 c0000000020c10b0 c00000000122767= 0=20 NIP [c0000000003bfbfc] register_btf_kfunc_id_set+0x68/0x74 LR [c0000000020517dc] kfunc_init+0x4c/0x110 Call Trace: [c0000000049bfc30] [c000000000010d58] do_one_initcall+0x80/0x2f8 [c0000000049bfd00] [c000000002005aec] kernel_init_freeable+0x32c/0x520 [c0000000049bfde0] [c0000000000110f8] kernel_init+0x34/0x25c [c0000000049bfe50] [c00000000000debc] ret_from_kernel_user_thread+0x14/0x= 1c --- interrupt: 0 at 0x0 Code: 60420000 3d22ffc6 39290708 7d291a14 89290270 7d290774 79230020 4bff= f8c0 60420000 e9240000 7d290074 7929d182 <0b090000> 3860ffea 4e800020 3c4c0= 121=20 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at kernel/bpf/btf.c:8131 register_btf_kfunc_id_set= +0x68/0x74 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.8.0-rc2-0338= 0-gd0c0d80c1162 #2 Hardware name: IBM pSeries (emulated by qemu) POWER8 (raw) 0x4d0200 0xf00= 0004 of:SLOF,HEAD pSeries NIP: c0000000003bfbfc LR: c0000000003976c8 CTR: c00000000039769c REGS: c0000000049bf970 TRAP: 0700 Tainted: G W (6.8.0-= rc2-03380-gd0c0d80c1162) MSR: 8000000002029033 CR: 24000422 XER: 200= 00000 CFAR: c0000000003bfbb0 IRQMASK: 0=20 GPR00: c0000000003976c8 c0000000049bfc10 c0000000015c9900 000000000000000= 0=20 GPR04: c000000001228d70 0000000000000002 c0000000049bfc02 fffffffffffe000= 0=20 GPR08: 0000000000000000 0000000000000001 0000000000000000 000000002400028= 2=20 GPR12: c00000000039769c c000000002b60000 c0000000000110cc 000000000000000= 0=20 GPR16: 0000000000000000 0000000000000000 0000000000000000 000000000000000= 0=20 GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000014cd25= 0=20 GPR24: c000000002003e6c c000000001582c78 000000000000018b c0000000020c106= 8=20 GPR28: 0000000000000000 0000000000000008 c0000000020c10b0 c00000000039769= c=20 NIP [c0000000003bfbfc] register_btf_kfunc_id_set+0x68/0x74 LR [c0000000003976c8] init_subsystem+0x2c/0x40 Call Trace: [c0000000049bfc10] [c0000000020c10b0] 0xc0000000020c10b0 (unreliable) [c0000000049bfc30] [c000000000010d58] do_one_initcall+0x80/0x2f8 [c0000000049bfd00] [c000000002005aec] kernel_init_freeable+0x32c/0x520 [c0000000049bfde0] [c0000000000110f8] kernel_init+0x34/0x25c [c0000000049bfe50] [c00000000000debc] ret_from_kernel_user_thread+0x14/0x= 1c --- interrupt: 0 at 0x0 Code: 60420000 3d22ffc6 39290708 7d291a14 89290270 7d290774 79230020 4bff= f8c0 60420000 e9240000 7d290074 7929d182 <0b090000> 3860ffea 4e800020 3c4c0= 121=20 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at kernel/bpf/btf.c:8131 register_btf_kfunc_id_set= +0x68/0x74 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.8.0-rc2-0338= 0-gd0c0d80c1162 #2 Hardware name: IBM pSeries (emulated by qemu) POWER8 (raw) 0x4d0200 0xf00= 0004 of:SLOF,HEAD pSeries NIP: c0000000003bfbfc LR: c000000002051ed8 CTR: 0000000000000000 REGS: c0000000049bf950 TRAP: 0700 Tainted: G W (6.8.0-= rc2-03380-gd0c0d80c1162) MSR: 8000000002029033 CR: 24000220 XER: 200= 00000 CFAR: c0000000003bfbb0 IRQMASK: 0=20 GPR00: c000000002051ed8 c0000000049bfbf0 c0000000015c9900 000000000000001= a=20 GPR04: c00000000122ad08 0000000000000001 c000000004810c00 c00000007fc92c3= 0=20 GPR08: 0000000000000017 0000000000000001 0000000000000008 000000002400022= 2=20 GPR12: 0000000000000034 c000000002b60000 c0000000000110cc 000000000000000= 0=20 GPR16: 0000000000000000 0000000000000000 0000000000000000 000000000000000= 0=20 GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000014cd25= 0=20 GPR24: c000000002003e6c c000000001582c78 000000000000018b c0000000020c106= 8=20 GPR28: 0000000000000000 0000000000000008 c0000000020c10b0 c00000000122ad0= 8=20 NIP [c0000000003bfbfc] register_btf_kfunc_id_set+0x68/0x74 LR [c000000002051ed8] cpumask_kfunc_init+0x98/0xf0 Call Trace: [c0000000049bfbf0] [c000000002051e84] cpumask_kfunc_init+0x44/0xf0 (unrel= iable) [c0000000049bfc30] [c000000000010d58] do_one_initcall+0x80/0x2f8 [c0000000049bfd00] [c000000002005aec] kernel_init_freeable+0x32c/0x520 [c0000000049bfde0] [c0000000000110f8] kernel_init+0x34/0x25c [c0000000049bfe50] [c00000000000debc] ret_from_kernel_user_thread+0x14/0x= 1c --- interrupt: 0 at 0x0 Code: 60420000 3d22ffc6 39290708 7d291a14 89290270 7d290774 79230020 4bff= f8c0 60420000 e9240000 7d290074 7929d182 <0b090000> 3860ffea 4e800020 3c4c0= 121=20 ---[ end trace 0000000000000000 ]--- Loading compiled-in X.509 certificates . . . netconsole: network logging started ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at kernel/bpf/btf.c:8131 register_btf_kfunc_id_set= +0x68/0x74 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.8.0-rc2-0338= 0-gd0c0d80c1162 #2 Hardware name: IBM pSeries (emulated by qemu) POWER8 (raw) 0x4d0200 0xf00= 0004 of:SLOF,HEAD pSeries NIP: c0000000003bfbfc LR: c000000000f0099c CTR: c000000000f00970 REGS: c0000000049bf970 TRAP: 0700 Tainted: G W (6.8.0-= rc2-03380-gd0c0d80c1162) MSR: 8000000002029033 CR: 24000282 XER: 200= 00000 CFAR: c0000000003bfbb0 IRQMASK: 0=20 GPR00: c000000000f0099c c0000000049bfc10 c0000000015c9900 000000000000001= a=20 GPR04: c0000000012b12c0 0000000000000002 c0000000049bfc02 fffffffffffe000= 0=20 GPR08: 0000000000000000 0000000000000001 0000000000000000 000000000000000= 0=20 GPR12: c000000000f00970 c000000002b60000 c0000000000110cc 000000000000000= 0=20 GPR16: 0000000000000000 0000000000000000 0000000000000000 000000000000000= 0=20 GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000014cd25= 0=20 GPR24: c000000002003e6c c000000001582c78 000000000000018b c0000000020c106= 8=20 GPR28: 0000000000000000 0000000000000008 c0000000020c10b0 c000000000f0097= 0=20 NIP [c0000000003bfbfc] register_btf_kfunc_id_set+0x68/0x74 LR [c000000000f0099c] init_subsystem+0x2c/0x40 Call Trace: [c0000000049bfc10] [c0000000020c10b0] 0xc0000000020c10b0 (unreliable) [c0000000049bfc30] [c000000000010d58] do_one_initcall+0x80/0x2f8 [c0000000049bfd00] [c000000002005aec] kernel_init_freeable+0x32c/0x520 [c0000000049bfde0] [c0000000000110f8] kernel_init+0x34/0x25c [c0000000049bfe50] [c00000000000debc] ret_from_kernel_user_thread+0x14/0x= 1c --- interrupt: 0 at 0x0 Code: 60420000 3d22ffc6 39290708 7d291a14 89290270 7d290774 79230020 4bff= f8c0 60420000 e9240000 7d290074 7929d182 <0b090000> 3860ffea 4e800020 3c4c0= 121=20 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at kernel/bpf/btf.c:8131 register_btf_kfunc_id_set= +0x68/0x74 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.8.0-rc2-0338= 0-gd0c0d80c1162 #2 Hardware name: IBM pSeries (emulated by qemu) POWER8 (raw) 0x4d0200 0xf00= 0004 of:SLOF,HEAD pSeries NIP: c0000000003bfbfc LR: c000000002094ab0 CTR: c000000002094a70 REGS: c0000000049bf960 TRAP: 0700 Tainted: G W (6.8.0-= rc2-03380-gd0c0d80c1162) MSR: 8000000002029033 CR: 24000282 XER: 200= 00000 CFAR: c0000000003bfbb0 IRQMASK: 0=20 GPR00: c000000002094ab0 c0000000049bfc00 c0000000015c9900 000000000000000= 3=20 GPR04: c0000000012b1260 0000000000000002 c0000000049bfc02 fffffffffffe000= 0=20 GPR08: 0000000000000000 0000000000000001 0000000000000000 000000000000000= 0=20 GPR12: c000000002094a70 c000000002b60000 c0000000000110cc 000000000000000= 0=20 GPR16: 0000000000000000 0000000000000000 0000000000000000 000000000000000= 0=20 GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000014cd25= 0=20 GPR24: c000000002003e6c c000000001582c78 000000000000018b c0000000020c106= 8=20 GPR28: 0000000000000000 0000000000000008 c0000000012aef20 c0000000012b126= 0=20 NIP [c0000000003bfbfc] register_btf_kfunc_id_set+0x68/0x74 LR [c000000002094ab0] bpf_kfunc_init+0x40/0x18c Call Trace: [c0000000049bfc30] [c000000000010d58] do_one_initcall+0x80/0x2f8 [c0000000049bfd00] [c000000002005aec] kernel_init_freeable+0x32c/0x520 [c0000000049bfde0] [c0000000000110f8] kernel_init+0x34/0x25c [c0000000049bfe50] [c00000000000debc] ret_from_kernel_user_thread+0x14/0x= 1c --- interrupt: 0 at 0x0 Code: 60420000 3d22ffc6 39290708 7d291a14 89290270 7d290774 79230020 4bff= f8c0 60420000 e9240000 7d290074 7929d182 <0b090000> 3860ffea 4e800020 3c4c0= 121=20 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at kernel/bpf/btf.c:8131 register_btf_kfunc_id_set= +0x68/0x74 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.8.0-rc2-0338= 0-gd0c0d80c1162 #2 Hardware name: IBM pSeries (emulated by qemu) POWER8 (raw) 0x4d0200 0xf00= 0004 of:SLOF,HEAD pSeries NIP: c0000000003bfbfc LR: c000000002094ccc CTR: c000000002094ca0 REGS: c0000000049bf970 TRAP: 0700 Tainted: G W (6.8.0-= rc2-03380-gd0c0d80c1162) MSR: 8000000002029033 CR: 24000282 XER: 200= 00000 CFAR: c0000000003bfbb0 IRQMASK: 0=20 GPR00: c000000002094ccc c0000000049bfc10 c0000000015c9900 000000000000000= 6=20 GPR04: c0000000012b25e0 0000000000000002 c0000000049bfc02 fffffffffffe000= 0=20 GPR08: 0000000000000000 0000000000000001 0000000000000000 000000000000000= 0=20 GPR12: c000000002094ca0 c000000002b60000 c0000000000110cc 000000000000000= 0=20 GPR16: 0000000000000000 0000000000000000 0000000000000000 000000000000000= 0=20 GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000014cd25= 0=20 GPR24: c000000002003e6c c000000001582c78 000000000000018b c0000000020c106= 8=20 GPR28: 0000000000000000 0000000000000008 c0000000020c10b0 c000000002094ca= 0=20 NIP [c0000000003bfbfc] register_btf_kfunc_id_set+0x68/0x74 LR [c000000002094ccc] xdp_metadata_init+0x2c/0x40 Call Trace: [c0000000049bfc10] [c0000000020c10b0] 0xc0000000020c10b0 (unreliable) [c0000000049bfc30] [c000000000010d58] do_one_initcall+0x80/0x2f8 [c0000000049bfd00] [c000000002005aec] kernel_init_freeable+0x32c/0x520 [c0000000049bfde0] [c0000000000110f8] kernel_init+0x34/0x25c [c0000000049bfe50] [c00000000000debc] ret_from_kernel_user_thread+0x14/0x= 1c --- interrupt: 0 at 0x0 Code: 60420000 3d22ffc6 39290708 7d291a14 89290270 7d290774 79230020 4bff= f8c0 60420000 e9240000 7d290074 7929d182 <0b090000> 3860ffea 4e800020 3c4c0= 121=20 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at kernel/bpf/btf.c:8131 register_btf_kfunc_id_set= +0x68/0x74 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.8.0-rc2-0338= 0-gd0c0d80c1162 #2 Hardware name: IBM pSeries (emulated by qemu) POWER8 (raw) 0x4d0200 0xf00= 0004 of:SLOF,HEAD pSeries NIP: c0000000003bfbfc LR: c000000002095890 CTR: c000000002095800 REGS: c0000000049bf940 TRAP: 0700 Tainted: G W (6.8.0-= rc2-03380-gd0c0d80c1162) MSR: 8000000002029033 CR: 24000282 XER: 200= 00000 CFAR: c0000000003bfbb0 IRQMASK: 0=20 GPR00: c000000002095890 c0000000049bfbe0 c0000000015c9900 000000000000000= 3=20 GPR04: c0000000012b5938 0000000000000002 c0000000049bfc02 fffffffffffe000= 0=20 GPR08: 0000000000000000 0000000000000001 0000000000000000 000000000000000= 0=20 GPR12: c000000002095800 c000000002b60000 c0000000000110cc 000000000000000= 0=20 GPR16: 0000000000000000 0000000000000000 0000000000000000 000000000000000= 0=20 GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000014cd25= 0=20 GPR24: c000000002003e6c c000000001582c78 000000000000018b c0000000020c106= 8=20 GPR28: 0000000000000000 0000000000000008 c0000000020c10b0 c0000000012b593= 8=20 NIP [c0000000003bfbfc] register_btf_kfunc_id_set+0x68/0x74 LR [c000000002095890] bpf_prog_test_run_init+0x90/0xec Call Trace: [c0000000049bfbe0] [c000000002095848] bpf_prog_test_run_init+0x48/0xec (u= nreliable) [c0000000049bfc30] [c000000000010d58] do_one_initcall+0x80/0x2f8 [c0000000049bfd00] [c000000002005aec] kernel_init_freeable+0x32c/0x520 [c0000000049bfde0] [c0000000000110f8] kernel_init+0x34/0x25c [c0000000049bfe50] [c00000000000debc] ret_from_kernel_user_thread+0x14/0x= 1c --- interrupt: 0 at 0x0 Code: 60420000 3d22ffc6 39290708 7d291a14 89290270 7d290774 79230020 4bff= f8c0 60420000 e9240000 7d290074 7929d182 <0b090000> 3860ffea 4e800020 3c4c0= 121=20 ---[ end trace 0000000000000000 ]--- modprobe (54) used greatest stack depth: 28336 bytes left ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at kernel/bpf/btf.c:8131 register_btf_kfunc_id_set= +0x68/0x74 Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.8.0-rc2-0338= 0-gd0c0d80c1162 #2 Hardware name: IBM pSeries (emulated by qemu) POWER8 (raw) 0x4d0200 0xf00= 0004 of:SLOF,HEAD pSeries NIP: c0000000003bfbfc LR: c00000000209bd0c CTR: c00000000209bce0 REGS: c0000000049bf970 TRAP: 0700 Tainted: G W (6.8.0-= rc2-03380-gd0c0d80c1162) MSR: 800000000282b033 CR: 24000242 X= ER: 20000000 CFAR: c0000000003bfbb0 IRQMASK: 0=20 GPR00: c00000000209bd0c c0000000049bfc10 c0000000015c9900 000000000000001= b=20 GPR04: c0000000012bcb28 0000000000000002 c0000000049bfc02 fffffffffffe000= 0=20 GPR08: 0000000000000000 0000000000000001 0000000000000000 c00000000291fb9= 0=20 GPR12: c00000000209bce0 c000000002b60000 c0000000000110cc 000000000000000= 0=20 GPR16: 0000000000000000 0000000000000000 0000000000000000 000000000000000= 0=20 GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000014cd25= 0=20 GPR24: c000000002003e6c c000000001582c78 000000000000018b c0000000020c106= 8=20 GPR28: 0000000000000000 0000000000000008 c0000000020c10b0 c00000000209bce= 0=20 NIP [c0000000003bfbfc] register_btf_kfunc_id_set+0x68/0x74 LR [c00000000209bd0c] bpf_tcp_ca_kfunc_init+0x2c/0x74 Call Trace: [c0000000049bfc10] [c0000000020c10b0] 0xc0000000020c10b0 (unreliable) [c0000000049bfc30] [c000000000010d58] do_one_initcall+0x80/0x2f8 [c0000000049bfd00] [c000000002005aec] kernel_init_freeable+0x32c/0x520 [c0000000049bfde0] [c0000000000110f8] kernel_init+0x34/0x25c [c0000000049bfe50] [c00000000000debc] ret_from_kernel_user_thread+0x14/0x= 1c --- interrupt: 0 at 0x0 Code: 60420000 3d22ffc6 39290708 7d291a14 89290270 7d290774 79230020 4bff= f8c0 60420000 e9240000 7d290074 7929d182 <0b090000> 3860ffea 4e800020 3c4c0= 121=20 ---[ end trace 0000000000000000 ]--- Freeing unused kernel image (initmem) memory: 6464K Exposed (and maybe caused) by commit 6e7769e6419f ("bpf: treewide: Annotate BPF kfuncs in BTF") --=20 Cheers, Stephen Rothwell --Sig_/IdzMCA.1BtKvMaBdA9eqQJZ Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAmW7DsQACgkQAVBC80lX 0GwK6wf5AaWtLw0kNLRUntfY2QZiLPlox2O5XTHOu5dOt4ovN6i9r8FXKPb93J4x XkMQHTy40vJBCKjNIRzr2g+usTiXA32y7+KILBTDUqmFnqyOnpGZHv3uqgobmmuy ypTHmmsk0hxY8lHF9iWuk7Kj3lA/Jx1Q3dbCVUY82/quoqwX9uQogpSBnt50ILw4 jNfiT/saxIWuL9ln5BUuPyHi+Ib0tDi7wPnwZ+znRM+oGZs7hw3SgOOGkj8JU+b6 q7bcmoNBWTx/aNQ6oCitIsZQMtKjCFVW14OG+js7dqdeovv69VrmLCTVDwF4Wr8T nTTmK50gHwrOWZrYDD+KQBcylXubow== =R6IK -----END PGP SIGNATURE----- --Sig_/IdzMCA.1BtKvMaBdA9eqQJZ--