| Summary: | Unhandled instruction 0xD5380008 on arm64 platform (mrs x8, midr_el1) | ||
|---|---|---|---|
| Product: | [Developer tools] valgrind | Reporter: | Adam Folwarczny <adamf88> |
| Component: | vex | Assignee: | Julian Seward <jseward> |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | crash | CC: | adamf88, pjfloyd |
| Priority: | NOR | ||
| Version First Reported In: | 3.22.0 | ||
| Target Milestone: | --- | ||
| Platform: | Other | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed In: | ||
| Sentry Crash Report: | |||
This looks quite similar to cpuid. The main problem here is that it needs to be consistent with what Valgrind is emulating. I see there was an earlier report of this, with a patch. *** This bug has been marked as a duplicate of bug 392146 *** |
SUMMARY ARM64 front end: branch_etc disInstr(arm64): unhandled instruction 0xD5380008 disInstr(arm64): 1101'0101 0011'1000 0000'0000 0000'1000 ==3277832== valgrind: Unrecognised instruction at address 0x8ebb81c. ==3277832== at 0x8EBB81C: setSysRegVal (util_impl.cpp:123) ==3277832== by 0x8EBB81C: Xbyak_aarch64::util::Cpu::Cpu() (util_impl.cpp:233) ==3277832== by 0x8E9597F: cpu (cpu_isa_traits.hpp:171) ==3277832== by 0x8E9597F: mayiuse (cpu_isa_traits.hpp:188) ==3277832== by 0x8E9597F: dnnl::impl::cpu::aarch64::tr::jit_single_blk_kernel_t::applicable(dnnl::impl::cpu::aarch64::tr::prb_t const&) (jit_uni_reorder.cpp:1905) ==3277832== by 0x8E955C7: dnnl::impl::cpu::aarch64::jit_blk_reorder_t::pd_t::create(dnnl::impl::reorder_pd_t**, dnnl_engine*, dnnl_primitive_attr const*, dnnl_engine*, dnnl_memory_desc const*, dnnl_engine*, dnnl_memory_desc const*) (jit_uni_reorder.cpp:2936) OBSERVED RESULT valgrind reports unhandled instruction error EXPECTED RESULT Valgrind understand instruction mentioned above SOFTWARE/OS VERSIONS Linux arm64 ADDITIONAL INFORMATION The error comes from dnnl library. Compile command: clang++-10 -MMD -MF -DENABLE_NEON -DENABLE_OMP -DNDEBUG -DDISABLE_VERBOSE -DDNNL_DISABLE_PRIMITIVE_CACHE -DDNNL_ENABLE_CONCURRENT_EXEC -DDNNL_ENABLE_JIT_PROFILING=0 -DDNNL_ENABLE_MAX_CPU_ISA -DDNNL_AARCH64=1 -I../../deps/build/dnnl/src -I../../deps/build/dnnl/include -I../../deps/build/dnnl/src/cpu/aarch64/xbyak_aarch64/xbyak_aarch64 -I../../deps/build/acl/arm_compute -I../../deps/build/acl -I../../deps/build/acl/include -I../../deps/build/openmp/pregenerated/include -I../../deps/build/libcxx/include -I../../deps/build/libcxxabi/include -fopenmp -fno-strict-aliasing -funwind-tables -fPIC -fcolor-diagnostics --target=aarch64-linux-gnu -fstack-protector-strong -pthread -O3 -fno-ident -fdata-sections -ffunction-sections -fno-omit-frame-pointer -g2 --sysroot=/opt/xenial -fvisibility=hidden -fvisibility-inlines-hidden -frtti -fexceptions -std=c++14 -nostdinc++ -c ../../deps/build/dnnl/src/cpu/aarch64/xbyak_aarch64/src/util_impl.cpp Function with unrecognized instruction: 0000000000000000 <_ZN13Xbyak_aarch644util3Cpu12setSysRegValEv>: 0: d5380008 mrs x8, midr_el1 4: f9003c08 str x8, [x0, #120] 8: d65f03c0 ret Implementation: #define XBYAK_AARCH64_READ_SYSREG(var, ID) asm("mrs %0, " #ID : "=r"(var)); void Cpu::setSysRegVal() { #ifdef __linux__ XBYAK_AARCH64_READ_SYSREG(midr_el1_, MIDR_EL1); #endif } Codes comes from opendll (util_impl.cpp) oneAPI Deep Neural Network Library (oneDNN) https://github.com/oneapi-src/oneDNN/blob/rls-v3.1/src/cpu/aarch64/xbyak_aarch64/src/util_impl.cpp