Date: Fri, 4 Nov 2016 20:16:03 +0100 From: Michael Tuexen <tuexen@freebsd.org> To: "freebsd-arm@freebsd.org" <arm@freebsd.org> Subject: dtrace on rpi3 panics Message-ID: <56028B91-528A-483A-9019-982ED6BAD2D4@freebsd.org>
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Dear all, when running kldload dtraceall on a rpi3 with tuexen@rpi3:~ % uname -a FreeBSD rpi3 12.0-CURRENT FreeBSD 12.0-CURRENT #0 r307671M: Thu Oct 20 = 15:52:24 CEST 2016 = tuexen@bsd5.fh-muenster.de:/usr/home/tuexen/arm64/obj/arm64.aarch64/usr/ho= me/tuexen/head/sys/GENERIC-UP arm64 I get root@rpi3:/home/tuexen # kldload dtraceall x0: ffff0000003194c4 x1: fffffd00014ad500 x2: ffff0000003194c4 x3: ffff0000409d2a6c x4: ffff0000003194c4 x5: 0 x6: ffff000000966850 x7: 40 x8: fffffd0001c1c9c0 x9: 1 x10: 1 x11: 0 x12: fffffd00015ef628 x13: fffffd00014c1300 x14: ffff00000092c670 x15: 0 x16: ffff0000409e7678 x17: ffff000000319414 x18: ffff0000533bff80 x19: ffff0000409d2a6c x20: ffff0000003194c4 x21: ffff0000003194c4 x22: fffffd00014ad500 x23: fffffd00015ef5e0 x24: 8 x25: 1 x26: ffff0000409e8000 x27: ffff0000409e7000 x28: ffff0000409e7000 x29: ffff0000533bffa0 x30: ffff0000533bffa0 sp: ffff0000533bff80 lr: ffff000000319444 elr: fffffd00014ad500 spsr: 800003c5 panic: Unknown kernel exception 0 esr_el1 2000000 KDB: stack backtrace: db_trace_self() at db_trace_self_wrapper+0x28 pc =3D 0xffff000000590e60 lr =3D 0xffff00000005e50c sp =3D 0xffff0000533bfa80 fp =3D 0xffff0000533bfc90 db_trace_self_wrapper() at vpanic+0x9c pc =3D 0xffff00000005e50c lr =3D 0xffff0000002ce7b8 sp =3D 0xffff0000533bfca0 fp =3D 0xffff0000533bfd10 vpanic() at panic+0x4c pc =3D 0xffff0000002ce7b8 lr =3D 0xffff0000002ce898 sp =3D 0xffff0000533bfd20 fp =3D 0xffff0000533bfda0 panic() at do_el1h_sync+0x138 pc =3D 0xffff0000002ce898 lr =3D 0xffff0000005a6a90 sp =3D 0xffff0000533bfdb0 fp =3D 0xffff0000533bfdd0 do_el1h_sync() at handle_el1h_sync+0x68 pc =3D 0xffff0000005a6a90 lr =3D 0xffff000000592868 sp =3D 0xffff0000533bfde0 fp =3D 0xffff0000533bfef0 handle_el1h_sync() at smp_rendezvous_cpus+0x2c pc =3D 0xffff000000592868 lr =3D 0xffff000000319440 sp =3D 0xffff0000533bff00 fp =3D 0xffff0000533bffa0 smp_rendezvous_cpus() at dtrace_probe_create+0x20c pc =3D 0xffff000000319440 lr =3D 0xffff0000409bd7cc sp =3D 0xffff0000533bffb0 fp =3D 0xffff0000533c0000 dtrace_probe_create() at dtrace_load+0x420 pc =3D 0xffff0000409bd7cc lr =3D 0xffff0000409c8ff8 sp =3D 0xffff0000533c0010 fp =3D 0xffff0000533c0040 dtrace_load() at linker_load_module+0xaec pc =3D 0xffff0000409c8ff8 lr =3D 0xffff0000002a4ae4 sp =3D 0xffff0000533c0050 fp =3D 0xffff0000533c0360 linker_load_module() at linker_load_dependencies+0x29c pc =3D 0xffff0000002a4ae4 lr =3D 0xffff0000002a7044 sp =3D 0xffff0000533c0370 fp =3D 0xffff0000533c03e0 linker_load_dependencies() at link_elf_load_file+0x680 pc =3D 0xffff0000002a7044 lr =3D 0xffff0000002f1cc8 sp =3D 0xffff0000533c03f0 fp =3D 0xffff0000533c05a0 link_elf_load_file() at linker_load_module+0x8a8 pc =3D 0xffff0000002f1cc8 lr =3D 0xffff0000002a48a0 sp =3D 0xffff0000533c05b0 fp =3D 0xffff0000533c08c0 linker_load_module() at kern_kldload+0xac pc =3D 0xffff0000002a48a0 lr =3D 0xffff0000002a6190 sp =3D 0xffff0000533c08d0 fp =3D 0xffff0000533c0900 kern_kldload() at sys_kldload+0x68 pc =3D 0xffff0000002a6190 lr =3D 0xffff0000002a6270 sp =3D 0xffff0000533c0910 fp =3D 0xffff0000533c0940 sys_kldload() at do_el0_sync+0x540 pc =3D 0xffff0000002a6270 lr =3D 0xffff0000005a72f8 sp =3D 0xffff0000533c0950 fp =3D 0xffff0000533c0a70 do_el0_sync() at handle_el0_sync+0x64 pc =3D 0xffff0000005a72f8 lr =3D 0xffff0000005929d0 sp =3D 0xffff0000533c0a80 fp =3D 0xffff0000533c0b90 handle_el0_sync() at 0x400fbc pc =3D 0xffff0000005929d0 lr =3D 0x0000000000400fbc sp =3D 0xffff0000533c0ba0 fp =3D 0x0000ffffffffebb0 KDB: enter: panic [ thread pid 686 tid 100076 ] Stopped at kdb_enter+0x40: undefined d4200000 db>=20 Is this supposed to work already and this is a bug or is there some more work needed? Best regards Michael
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