Hi, I am supposed to file a bug report in https://bugs.llvm.org/ but the site requires account login, while waiting for my account setup, and since this is related to BPF, I will try my luck here :) This is cilium environment, when I use llvm-objdump to disassemble the bpf_lxc.o like below, it core dumps #llvm-objdump -S -D /var/run/cilium/state/2799/bpf_lxc.o > /home/bpf_lxc-5.4.txt PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace. Stack dump: 0. Program arguments: llvm-objdump -S -D /var/run/cilium/state/2799/bpf_lxc.o #0 0x00000000006336bc llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/local/bin/llvm-objdump+0x6336bc) #1 0x00000000006318a4 llvm::sys::RunSignalHandlers() (/usr/local/bin/llvm-objdump+0x6318a4) #2 0x0000000000631efd SignalHandler(int) (/usr/local/bin/llvm-objdump+0x631efd) #3 0x00007f9f39a7fb20 __restore_rt (/lib64/libpthread.so.0+0x12b20) #4 0x0000000000492e8b llvm::BPFInstPrinter::printMemOperand(llvm::MCInst const*, int, llvm::raw_ostream&, char const*) (/usr/local/bin/llvm-objdump+0x492e8b) #5 0x00000000004946c0 llvm::BPFInstPrinter::printInst(llvm::MCInst const*, unsigned long, llvm::StringRef, llvm::MCSubtargetInfo const&, llvm::raw_ostream&) (/usr/local/bin/llvm-objdump+0x4946c0) #6 0x0000000000432351 (anonymous namespace)::BPFPrettyPrinter::printInst(llvm::MCInstPrinter&, llvm::MCInst const*, llvm::ArrayRef<unsigned char>, llvm::object::SectionedAddress, llvm::formatted_raw_ostream&, llvm::StringRef, llvm::MCSubtargetInfo const&, (anonymous namespace)::SourcePrinter*, llvm::StringRef, std::vector<llvm::object::RelocationRef, std::allocator<llvm::object::RelocationRef> >*, (anonymous namespace)::LiveVariablePrinter&) (/usr/local/bin/llvm-objdump+0x432351) #7 0x00000000004400b8 disassembleObject(llvm::Target const*, llvm::object::ObjectFile const*, llvm::MCContext&, llvm::MCDisassembler*, llvm::MCDisassembler*, llvm::MCInstrAnalysis const*, llvm::MCInstPrinter*, llvm::MCSubtargetInfo const*, llvm::MCSubtargetInfo const*, (anonymous namespace)::PrettyPrinter&, (anonymous namespace)::SourcePrinter&, bool) (/usr/local/bin/llvm-objdump+0x4400b8) #8 0x000000000044444e disassembleObject(llvm::object::ObjectFile const*, bool) (/usr/local/bin/llvm-objdump+0x44444e) #9 0x00000000004454e2 dumpObject(llvm::object::ObjectFile*, llvm::object::Archive const*, llvm::object::Archive::Child const*) (/usr/local/bin/llvm-objdump+0x4454e2) #10 0x0000000000409910 main (/usr/local/bin/llvm-objdump+0x409910) #11 0x00007f9f3854c493 __libc_start_main (/lib64/libc.so.6+0x23493) #12 0x000000000042384e _start (/usr/local/bin/llvm-objdump+0x42384e) Segmentation fault (core dumped) I compiled and installed llvm and clang 12.0.1 myself
