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SubjectSegmentation fault on all golang executables
From
Hello,

This commit seem to cause Segmentation fault on any of my golang executables.

commit 6f121e548f83674ab4920a4e60afb58d4f61b829
Author: Andy Lutomirski <luto@amacapital.net>
Date: Mon May 5 12:19:34 2014 -0700

x86, vdso: Reimplement vdso.so preparation in build-time C

golang-go 2:1.2.1-2ubuntu1
amd64
golang-go-linux-amd64 2:1.2.1-2ubuntu1
amd64


/tmp]> go
Segmentation fault

go_seg]> cat a.go
package main

func main(){
println("test")

}

################

(gdb) run
Starting program: go_seg/a

Program received signal SIGSEGV, Segmentation fault.
vdso_parse_symbols (vdso_info=<error reading variable: Attempt to
dereference a generic pointer.>,
version=<error reading variable: Attempt to dereference a generic pointer.>)
at /usr/lib/go/src/pkg/runtime/vdso_linux_amd64.c:279
279 if(ELF64_ST_TYPE(sym->st_info) != STT_FUNC)
(gdb) bt
#0 vdso_parse_symbols (vdso_info=<error reading variable: Attempt to
dereference a generic pointer.>,
version=<error reading variable: Attempt to dereference a generic pointer.>)
at /usr/lib/go/src/pkg/runtime/vdso_linux_amd64.c:279
#1 0x0000000000417228 in runtime.linux_setup_vdso (
argc=<error reading variable: Attempt to dereference a generic pointer.>,
argv=<error reading variable: Attempt to dereference a generic pointer.>)
at /usr/lib/go/src/pkg/runtime/vdso_linux_amd64.c:326
#2 0x000000000041358c in runtime.args (c=<error reading variable:
Attempt to dereference a generic pointer.>,
v=<error reading variable: Attempt to dereference a generic
pointer.>) at /usr/lib/go/src/pkg/runtime/runtime.c:86
#3 0x000000000041a01b in _rt0_go () at
/usr/lib/go/src/pkg/runtime/asm_amd64.s:85
#4 0x0000000000000001 in ?? ()
#5 0x00007fffffffe7b8 in ?? ()
#6 0x0000000000000001 in ?? ()
#7 0x00007fffffffe7b8 in ?? ()
#8 0x0000000000000000 in ?? ()

###########################################

Starting program: /usr/bin/go
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
vdso_parse_symbols (vdso_info=<error reading variable: Attempt to
dereference a generic pointer.>,
version=<error reading variable: Attempt to dereference a generic pointer.>)
at /usr/lib/go/src/pkg/runtime/vdso_linux_amd64.c:279
279 if(ELF64_ST_TYPE(sym->st_info) != STT_FUNC)
(gdb) bt
#0 vdso_parse_symbols (vdso_info=<error reading variable: Attempt to
dereference a generic pointer.>,
version=<error reading variable: Attempt to dereference a generic pointer.>)
at /usr/lib/go/src/pkg/runtime/vdso_linux_amd64.c:279
#1 0x0000000000470288 in runtime.linux_setup_vdso (
argc=<error reading variable: Attempt to dereference a generic pointer.>,
argv=<error reading variable: Attempt to dereference a generic pointer.>)
at /usr/lib/go/src/pkg/runtime/vdso_linux_amd64.c:326
#2 0x000000000046bf6c in runtime.args (c=<error reading variable:
Attempt to dereference a generic pointer.>,
v=<error reading variable: Attempt to dereference a generic
pointer.>) at /usr/lib/go/src/pkg/runtime/runtime.c:86
#3 0x000000000047558b in _rt0_go () at
/usr/lib/go/src/pkg/runtime/asm_amd64.s:85
#4 0x0000000000000001 in ?? ()
#5 0x00007fffffffe7d8 in ?? ()
#6 0x0000000000000001 in ?? ()
#7 0x00007fffffffe7d8 in ?? ()
#8 0x0000000000000000 in ?? ()



thanks
Kui.Z


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