Description of problem: TestClientServer_SinglelineStringFormattedWithBigInts from delve-1.9.1-1.el9 fails with 'SIGILL: illegal instruction' on RHEL-9.2.0-20221005.0: (...) === RUN TestClientServer_SinglelineStringFormattedWithBigInts SIGILL: illegal instruction PC=0x48268e m=0 sigcode=2 instruction bytes: 0xc5 0xfd 0x73 0xf0 0x24 0xcc 0xfe 0x7f 0x3 0xc3 0x0 0x0 0x0 0x0 0x0 0x0 goroutine 1 [running]: main.VPSLLQ36(0xc000092ed8, 0xc000092ef8) /home/tmp.nwFa0KeaC1/BUILD/delve-1.9.1/_build/src/github.com/go-delve/delve/_fixtures/xmm0print/main.s:7 +0xe fp=0xc000092e98 sp=0xc000092e90 pc=0x48268e main.main() /home/tmp.nwFa0KeaC1/BUILD/delve-1.9.1/_build/src/github.com/go-delve/delve/_fixtures/xmm0print/main.go:11 +0x6e fp=0xc000092f80 sp=0xc000092e98 pc=0x48252e runtime.main() /usr/lib/golang/src/runtime/proc.go:250 +0x212 fp=0xc000092fe0 sp=0xc000092f80 pc=0x433fd2 runtime.goexit() /usr/lib/golang/src/runtime/asm_amd64.s:1594 +0x1 fp=0xc000092fe8 sp=0xc000092fe0 pc=0x45cdc1 goroutine 2 [force gc (idle)]: runtime.gopark(0x0?, 0x0?, 0x0?, 0x0?, 0x0?) /usr/lib/golang/src/runtime/proc.go:363 +0xd6 fp=0xc000042fb0 sp=0xc000042f90 pc=0x434396 runtime.goparkunlock(...) /usr/lib/golang/src/runtime/proc.go:369 runtime.forcegchelper() /usr/lib/golang/src/runtime/proc.go:302 +0xad fp=0xc000042fe0 sp=0xc000042fb0 pc=0x43422d runtime.goexit() /usr/lib/golang/src/runtime/asm_amd64.s:1594 +0x1 fp=0xc000042fe8 sp=0xc000042fe0 pc=0x45cdc1 created by runtime.init.6 /usr/lib/golang/src/runtime/proc.go:290 +0x25 goroutine 17 [GC sweep wait]: runtime.gopark(0x0?, 0x0?, 0x0?, 0x0?, 0x0?) /usr/lib/golang/src/runtime/proc.go:363 +0xd6 fp=0xc00003e790 sp=0xc00003e770 pc=0x434396 runtime.goparkunlock(...) /usr/lib/golang/src/runtime/proc.go:369 runtime.bgsweep(0x0?) /usr/lib/golang/src/runtime/mgcsweep.go:278 +0x8e fp=0xc00003e7c8 sp=0xc00003e790 pc=0x4214ce runtime.gcenable.func1() /usr/lib/golang/src/runtime/mgc.go:178 +0x26 fp=0xc00003e7e0 sp=0xc00003e7c8 pc=0x416386 runtime.goexit() /usr/lib/golang/src/runtime/asm_amd64.s:1594 +0x1 fp=0xc00003e7e8 sp=0xc00003e7e0 pc=0x45cdc1 created by runtime.gcenable /usr/lib/golang/src/runtime/mgc.go:178 +0x6b goroutine 18 [GC scavenge wait]: runtime.gopark(0xc000080000?, 0x4b8c90?, 0x1?, 0x0?, 0x0?) /usr/lib/golang/src/runtime/proc.go:363 +0xd6 fp=0xc00003ef70 sp=0xc00003ef50 pc=0x434396 runtime.goparkunlock(...) /usr/lib/golang/src/runtime/proc.go:369 runtime.(*scavengerState).park(0x52b6a0) /usr/lib/golang/src/runtime/mgcscavenge.go:389 +0x53 fp=0xc00003efa0 sp=0xc00003ef70 pc=0x41f573 runtime.bgscavenge(0x0?) /usr/lib/golang/src/runtime/mgcscavenge.go:617 +0x45 fp=0xc00003efc8 sp=0xc00003efa0 pc=0x41fb45 runtime.gcenable.func2() /usr/lib/golang/src/runtime/mgc.go:179 +0x26 fp=0xc00003efe0 sp=0xc00003efc8 pc=0x416326 runtime.goexit() /usr/lib/golang/src/runtime/asm_amd64.s:1594 +0x1 fp=0xc00003efe8 sp=0xc00003efe0 pc=0x45cdc1 created by runtime.gcenable /usr/lib/golang/src/runtime/mgc.go:179 +0xaa goroutine 19 [finalizer wait]: runtime.gopark(0x0?, 0xc000042670?, 0x2b?, 0x38?, 0xc000042770?) /usr/lib/golang/src/runtime/proc.go:363 +0xd6 fp=0xc000042628 sp=0xc000042608 pc=0x434396 runtime.goparkunlock(...) /usr/lib/golang/src/runtime/proc.go:369 runtime.runfinq() /usr/lib/golang/src/runtime/mfinal.go:180 +0x10f fp=0xc0000427e0 sp=0xc000042628 pc=0x41548f runtime.goexit() /usr/lib/golang/src/runtime/asm_amd64.s:1594 +0x1 fp=0xc0000427e8 sp=0xc0000427e0 pc=0x45cdc1 created by runtime.createfing /usr/lib/golang/src/runtime/mfinal.go:157 +0x45 rax 0xc000092ed8 rbx 0xc000092ef8 rcx 0x0 rdx 0x4a1be0 rdi 0xc00008c000 rsi 0x1 rbp 0xc000092f70 rsp 0xc000092e90 r8 0x10 r9 0x0 r10 0x7fd576a3cee8 r11 0x4b8c90 r12 0xc000092f18 r13 0x8 r14 0xc0000081a0 r15 0x7fd576ba0111 rip 0x48268e rflags 0x10202 cs 0x33 fs 0x0 gs 0x0 --- FAIL: TestClientServer_SinglelineStringFormattedWithBigInts (0.66s) (...) Version-Release number of selected component (if applicable): RHEL-9.2.0-20221005.0 delve-1.9.1-1.el9 How reproducible: 100% Steps to Reproduce: 1. rpm -ivh delve-1.9.1-1.el9.src.rpm 2. rpmbuild -bp rpmbuild/SPECS/delve.spec 3. cd rpmbuild/BUILD/delve-1.9.1/_build/ 4. export GO111MODULE=off 5. export GOPATH=$(pwd) 6. go test github.com/go-delve/delve/service/test -count 1 -v