Ubuntu
ltrace package

  1. Bug #771805
  2. Comment #15

Comment 15 for bug 771805

Revision history for this message
Mathieu Trudel-Lapierre (cyphermox) wrote : Re: [armel] ltrace hangs

I think we have enough information to land a fix for this. I've already reproduced on armhf on xenial with the exact same error:

root@ltrace:~# ltrace ls
__libc_start_main(0x12041, 1, 0x7ecd3894, 0x1e795PTRACE_SINGLESTEP: Input/output error
3872 couldn't continue when handling __libc_start_main (0x11d90) at 0x11d90

^C
^\Quit
root@ltrace:~# ltrace ps
__libc_start_main(0x11cbd, 1, 0x7ee16894, 0x19d01PTRACE_SINGLESTEP: Input/output error
3874 couldn't continue when handling __libc_start_main (0x11694) at 0x11694
^C^\Quit

And I've done some backporting of ltrace commits already. We'd just need to pinpoint which set of commits are still needed to fix that PTRACE_SINGLESTEP call on ARM. I'll track it down soonish.