Closed tv42 closed 10 years ago
$ go build -o go-python.buggy ./cmd/go-python/main.go [0 tv@brute ~/go/src/github.com/sbinet/go-python]$ ./go-python.buggy -c 'print 1+1' 2 *** Error in `./go-python.buggy': double free or corruption (out): 0x00007f15b5060ff0 *** ======= Backtrace: ========= /lib/x86_64-linux-gnu/libc.so.6(+0x80996)[0x7f15b4860996] ./go-python.buggy[0x4307e1] ======= Memory map: ======== 00400000-005cb000 r-xp 00000000 00:10 1714079 /home/tv/go/src/github.com/sbinet/go-python/go-python.buggy 007ca000-007cb000 r--p 001ca000 00:10 1714079 /home/tv/go/src/github.com/sbinet/go-python/go-python.buggy 007cb000-007d5000 rw-p 001cb000 00:10 1714079 /home/tv/go/src/github.com/sbinet/go-python/go-python.buggy 007d5000-007f1000 rw-p 00000000 00:00 0 02390000-0248c000 rw-p 00000000 00:00 0 [heap] c000000000-c000002000 rw-p 00000000 00:00 0 c207ff0000-c208100000 rw-p 00000000 00:00 0 7f15ac000000-7f15ac021000 rw-p 00000000 00:00 0 7f15ac021000-7f15b0000000 ---p 00000000 00:00 0 7f15b1b8c000-7f15b1ba1000 r-xp 00000000 00:10 19145 /lib/x86_64-linux-gnu/libgcc_s.so.1 7f15b1ba1000-7f15b1da0000 ---p 00015000 00:10 19145 /lib/x86_64-linux-gnu/libgcc_s.so.1 7f15b1da0000-7f15b1da1000 r--p 00014000 00:10 19145 /lib/x86_64-linux-gnu/libgcc_s.so.1 7f15b1da1000-7f15b1da2000 rw-p 00015000 00:10 19145 /lib/x86_64-linux-gnu/libgcc_s.so.1 7f15b1da2000-7f15b2484000 r--p 00000000 00:10 31725 /usr/lib/locale/locale-archive 7f15b2484000-7f15b25b9000 rw-p 00000000 00:00 0 7f15b25b9000-7f15b25ba000 ---p 00000000 00:00 0 7f15b25ba000-7f15b2dba000 rw-p 00000000 00:00 0 [stack:24223] 7f15b2dba000-7f15b2dbb000 ---p 00000000 00:00 0 7f15b2dbb000-7f15b36bb000 rw-p 00000000 00:00 0 7f15b36bb000-7f15b36bc000 ---p 00000000 00:00 0 7f15b36bc000-7f15b3ebc000 rw-p 00000000 00:00 0 [stack:24221] 7f15b3ebc000-7f15b3fbf000 r-xp 00000000 00:10 19159 /lib/x86_64-linux-gnu/libm-2.17.so 7f15b3fbf000-7f15b41be000 ---p 00103000 00:10 19159 /lib/x86_64-linux-gnu/libm-2.17.so 7f15b41be000-7f15b41bf000 r--p 00102000 00:10 19159 /lib/x86_64-linux-gnu/libm-2.17.so 7f15b41bf000-7f15b41c0000 rw-p 00103000 00:10 19159 /lib/x86_64-linux-gnu/libm-2.17.so 7f15b41c0000-7f15b41c2000 r-xp 00000000 00:10 19211 /lib/x86_64-linux-gnu/libutil-2.17.so 7f15b41c2000-7f15b43c1000 ---p 00002000 00:10 19211 /lib/x86_64-linux-gnu/libutil-2.17.so 7f15b43c1000-7f15b43c2000 r--p 00001000 00:10 19211 /lib/x86_64-linux-gnu/libutil-2.17.so 7f15b43c2000-7f15b43c3000 rw-p 00002000 00:10 19211 /lib/x86_64-linux-gnu/libutil-2.17.so 7f15b43c3000-7f15b43c6000 r-xp 00000000 00:10 19140 /lib/x86_64-linux-gnu/libdl-2.17.so 7f15b43c6000-7f15b45c5000 ---p 00003000 00:10 19140 /lib/x86_64-linux-gnu/libdl-2.17.so 7f15b45c5000-7f15b45c6000 r--p 00002000 00:10 19140 /lib/x86_64-linux-gnu/libdl-2.17.so 7f15b45c6000-7f15b45c7000 rw-p 00003000 00:10 19140 /lib/x86_64-linux-gnu/libdl-2.17.so 7f15b45c7000-7f15b45df000 r-xp 00000000 00:10 19215 /lib/x86_64-linux-gnu/libz.so.1.2.8 7f15b45df000-7f15b47de000 ---p 00018000 00:10 19215 /lib/x86_64-linux-gnu/libz.so.1.2.8 7f15b47de000-7f15b47df000 r--p 00017000 00:10 19215 /lib/x86_64-linux-gnu/libz.so.1.2.8 7f15b47df000-7f15b47e0000 rw-p 00018000 00:10 19215 /lib/x86_64-linux-gnu/libz.so.1.2.8 7f15b47e0000-7f15b499d000 r-xp 00000000 00:10 19131 /lib/x86_64-linux-gnu/libc-2.17.so 7f15b499d000-7f15b4b9d000 ---p 001bd000 00:10 19131 /lib/x86_64-linux-gnu/libc-2.17.so 7f15b4b9d000-7f15b4ba1000 r--p 001bd000 00:10 19131 /lib/x86_64-linux-gnu/libc-2.17.so 7f15b4ba1000-7f15b4ba3000 rw-p 001c1000 00:10 19131 /lib/x86_64-linux-gnu/libc-2.17.so 7f15b4ba3000-7f15b4ba8000 rw-p 00000000 00:00 0 7f15b4ba8000-7f15b4bbf000 r-xp 00000000 00:10 19192 /lib/x86_64-linux-gnu/libpthread-2.17.so 7f15b4bbf000-7f15b4dbf000 ---p 00017000 00:10 19192 /lib/x86_64-linux-gnu/libpthread-2.17.so 7f15b4dbf000-7f15b4dc0000 r--p 00017000 00:10 19192 /lib/x86_64-linux-gnu/libpthread-2.17.so 7f15b4dc0000-7f15b4dc1000 rw-p 00018000 00:10 19192 /lib/x86_64-linux-gnu/libpthread-2.17.so 7f15b4dc1000-7f15b4dc5000 rw-p 00000000 00:00 0 7f15b4dc5000-7f15b50a1000 r-xp 00000000 00:10 44746 /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0 7f15b50a1000-7f15b52a0000 ---p 002dc000 00:10 44746 /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0 7f15b52a0000-7f15b52a2000 r--p 002db000 00:10 44746 /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0 7f15b52a2000-7f15b5317000 rw-p 002dd000 00:10 44746 /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0 7f15b5317000-7f15b5329000 rw-p 00000000 00:00 0 7f15b5329000-7f15b534c000 r-xp 00000000 00:10 19118 /lib/x86_64-linux-gnu/ld-2.17.so 7f15b536c000-7f15b5531000 rw-p 00000000 00:00 0 [stack:24222] 7f15b5537000-7f15b554b000 rw-p 00000000 00:00 0 7f15b554b000-7f15b554c000 r--p 00022000 00:10 19118 /lib/x86_64-linux-gnu/ld-2.17.so 7f15b554c000-7f15b554e000 rw-p 00023000 00:10 19118 /lib/x86_64-linux-gnu/ld-2.17.so 7fff7f5e9000-7fff7f60a000 rw-p 00000000 00:00 0 [stack] 7fff7f6dd000-7fff7f6df000 r-xp 00000000 00:00 0 [vdso] ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall] SIGABRT: abort PC=0x7f15b4816f77 signal arrived during cgo execution runtime.cgocall(0x40c140, 0x7f15b536de70) /home/tv/src/go/src/pkg/runtime/cgocall.c:148 +0x116 fp=0x7f15b536de58 github.com/sbinet/go-python._Cfunc_free(0x7f15b5060ff0) /home/tv/tmp/go-build799516118/github.com/sbinet/go-python/_obj/_cgo_defun.c:2872 +0x31 fp=0x7f15b536de70 github.com/sbinet/go-python.func·001() /home/tv/go/src/github.com/sbinet/go-python/veryhigh.go:25 +0x70 fp=0x7f15b536de98 github.com/sbinet/go-python.Py_Main(0xc20800c000, 0x3, 0x3, 0x0) /home/tv/go/src/github.com/sbinet/go-python/veryhigh.go:29 +0x166 fp=0x7f15b536df20 main.main() /home/tv/go/src/github.com/sbinet/go-python/cmd/go-python/main.go:17 +0x44 fp=0x7f15b536df48 runtime.main() /home/tv/src/go/src/pkg/runtime/proc.c:231 +0x11a fp=0x7f15b536dfa0 runtime.goexit() /home/tv/src/go/src/pkg/runtime/proc.c:1438 fp=0x7f15b536dfa8 created by _rt0_go /home/tv/src/go/src/pkg/runtime/asm_amd64.s:97 +0x120 goroutine 17 [syscall]: runtime.goexit() /home/tv/src/go/src/pkg/runtime/proc.c:1438 rax 0x0 rbx 0x0 rcx 0xffffffffffffffff rdx 0x6 rdi 0x5e9c rsi 0x5e9c rbp 0x7fff7f6083e0 rsp 0x7fff7f6079a8 r8 0x0 r9 0x11 r10 0x8 r11 0x206 r12 0x4 r13 0x7 r14 0x7 r15 0x7fff7f607b50 rip 0x7f15b4816f77 rflags 0x206 cs 0x33 fs 0x0 gs 0x0 $ git stash pop -q $ git diff diff --git i/veryhigh.go w/veryhigh.go index 96bf183..aa96c53 100644 --- i/veryhigh.go +++ w/veryhigh.go @@ -20,11 +20,6 @@ func Py_Main(args []string) int { for idx, arg := range args { argv[idx] = C.CString(arg) } - defer func() { - for idx, _ := range argv { - C.free(unsafe.Pointer(argv[idx])) - } - }() return int(C.Py_Main(argc, &argv[0])) } $ go build -o go-python.good ./cmd/go-python/main.go $ ./go-python.good -c 'print 1+1' 2 $
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