On Fri, May 11, 2018 at 8:36 PM, Tashi Lu <dotslash...@gmail.com> wrote: > > I faced a strange problem： os/exec always fails with `fork/exec > /usr/bin/qemu-img: invalid argument'. > > Simplified code is at https://play.golang.org/p/v1APfzmS2p9. It seems this > simplified snippet runs well without errors, but my real code is no more > than just some variable initializations than this snippet. So I suspect it's > the context's problem, but my context is too complex to simplify and put > onto the playground. What I can think of that what might be linked to this > error is that this function is run in a goroutine. But I did write a > simplified goroutine version, sadly it worked well too... I had no idea how > to do further debugging. > > And further, the executable is not to blame, it fails with the same error > even if I substitute the executable to `ls' or anything else. > > Can you provide me some suggestions to the possible reason or the way to > debug? Thanks.
I would look first at the SysProcAttr field. Do you set that? Look closely at the values. If that doesn't help, run your failing program under strace -f and look for the failing system call. Ian -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
