我正在尝试调试 Go 上的内存问题，即 RSS 不断增加，通过 pprof 没有发现泄漏，很可能是由于 Go 在释放内存时没有将内存返回给操作系统（Go 中的经典 scavenger 问题：https://github .com/golang/go/issues/30333）
我试图了解内存是如何分配到堆中的，以及它们何时被释放。strace 到目前为止没有多大帮助，所以我正在尝试使用 ltrace
ltrace -e malloc+free go run main.go
不幸的是，它立即使程序崩溃。任何想法如何在 go 程序中使用 ltrace？还是根本不可能？
go->malloc(56) = 0x1f4f010
libpthread.so.0->free(nil) = <void>
go->free(0x1f4f010) = <void>
go->malloc(24) = 0x1f4f050
go->malloc(24) = 0x1f4f2c0
go->malloc(24) = 0x1f4f2c0
go->malloc(24) = 0x1f4f2c0
SIGILL: illegal instruction
PC=0x4aeb5e m=4 sigcode=2
goroutine 9 [syscall]:
syscall.Syscall6(0xf7, 0x1, 0x5865, 0xc000166dc8, 0x1000004, 0x0, 0x0, 0x4d0601, 0xc0003edf20, 0xc000166e08)
/usr/local/go/src/syscall/asm_linux_amd64.s:44 +0x5 fp=0xc000166d78 sp=0xc000166d70 pc=0x4aeb35
os.(*Process).blockUntilWaitable(0xc000027b30, 0x203000, 0xc0002d0000, 0x2)
/usr/local/go/src/os/wait_waitid.go:31 +0x98 fp=0xc000166e68 sp=0xc000166d78 pc=0x4d4db8
os.(*Process).wait(0xc000027b30, 0xa842a0, 0xa842a8, 0xa84298)
/usr/local/go/src/os/exec_unix.go:22 +0x39 fp=0xc000166ee0 sp=0xc000166e68 pc=0x4cca69
os.(*Process).Wait(...)
/usr/local/go/src/os/exec.go:125
os/exec.(*Cmd).Wait(0xc000325b80, 0x0, 0x0)
/usr/local/go/src/os/exec/exec.go:501 +0x60 fp=0xc000166f58 sp=0xc000166ee0 pc=0x50bbc0
os/exec.(*Cmd).Run(0xc000325b80, 0xc000260e10, 0x27)
/usr/local/go/src/os/exec/exec.go:341 +0x5c fp=0xc000166f80 sp=0xc000166f58 pc=0x50b05c
cmd/go/internal/work.(*Builder).toolID(0xc0000a55e0, 0xa3c61a, 0x7, 0xb, 0xc0001673c8)
/usr/local/go/src/cmd/go/internal/work/buildid.go:193 +0x44d fp=0xc000167170 sp=0xc000166f80 pc=0x83a51d
cmd/go/internal/work.(*Builder).buildActionID(0xc0000a55e0, 0xc0002e9400, 0x0, 0x0, 0x0, 0x0)
/usr/local/go/src/cmd/go/internal/work/exec.go:242 +0x1215 fp=0xc000167588 sp=0xc000167170 pc=0x840c15
cmd/go/internal/work.(*Builder).build(0xc0000a55e0, 0xc0002e9400, 0x0, 0x0)
/usr/local/go/src/cmd/go/internal/work/exec.go:397 +0x52a6 fp=0xc000167e30 sp=0xc000167588 pc=0x847606
cmd/go/internal/work.(*Builder).Do.func2(0xc0002e9400)
/usr/local/go/src/cmd/go/internal/work/exec.go:117 +0x36d fp=0xc000167ef0 sp=0xc000167e30 pc=0x87666d
cmd/go/internal/work.(*Builder).Do.func3(0xc000028d60, 0xc0000a55e0, 0xc0003d9740)
/usr/local/go/src/cmd/go/internal/work/exec.go:177 +0x79 fp=0xc000167fc8 sp=0xc000167ef0 pc=0x876799
runtime.goexit()
/usr/local/go/src/runtime/asm_amd64.s:1357 +0x1 fp=0xc000167fd0 sp=0xc000167fc8 pc=0x45c4c1
created by cmd/go/internal/work.(*Builder).Do
/usr/local/go/src/cmd/go/internal/work/exec.go:164 +0x3a1
goroutine 1 [semacquire]:
sync.runtime_Semacquire(0xc000028d68)
/usr/local/go/src/runtime/sema.go:56 +0x42
sync.(*WaitGroup).Wait(0xc000028d60)
/usr/local/go/src/sync/waitgroup.go:130 +0x64
cmd/go/internal/work.(*Builder).Do(0xc0000a55e0, 0xc000152dc0)
/usr/local/go/src/cmd/go/internal/work/exec.go:186 +0x3c5
cmd/go/internal/run.runRun(0xea3d40, 0xc0000201a0, 0x1, 0x1)
/usr/local/go/src/cmd/go/internal/run/run.go:143 +0x54d
main.main()
/usr/local/go/src/cmd/go/main.go:189 +0x57f
goroutine 6 [syscall]:
os/signal.signal_recv(0x0)
/usr/local/go/src/runtime/sigqueue.go:147 +0x9c
os/signal.loop()
/usr/local/go/src/os/signal/signal_unix.go:23 +0x22
created by os/signal.init.0
/usr/local/go/src/os/signal/signal_unix.go:29 +0x41
goroutine 10 [runnable]:
os/exec.(*Cmd).Start.func1(0xc000325b80, 0xc0003d97e0)
/usr/local/go/src/os/exec/exec.go:434
created by os/exec.(*Cmd).Start
/usr/local/go/src/os/exec/exec.go:434 +0x608
goroutine 11 [runnable]:
os/exec.(*Cmd).Start.func1(0xc000325b80, 0xc0003d9820)
/usr/local/go/src/os/exec/exec.go:434
created by os/exec.(*Cmd).Start
/usr/local/go/src/os/exec/exec.go:434 +0x608
rax 0xf0013d48
rbx 0xc000030000
rcx 0xffffffffffffffff
rdx 0xc000166dc8
rdi 0x1
rsi 0x5865
rbp 0xc000166e58
rsp 0xc000166d70
r8 0x0
r9 0x0
r10 0x1000004
r11 0x202
r12 0xf1
r13 0x0
r14 0xb16d58
r15 0x0
rip 0x4aeb5e
rflags 0x10286
cs 0x33
fs 0x0
gs 0x0
+++ exited (status 2) +++