Re: x86: do_debug PTRACE_SINGLESTEP broken by 08d68323d1f0c34452e614263b212ca556dae47f

2009-12-21 Thread Jan Kiszka
Oleg Nesterov wrote: On 12/18, Roland McGrath wrote: Please find the trivial test-case below. It hangs, because PTRACE_SINGLESTEP doesn't trigger the trap. 2.6.33-rc1 x86-64 works for me with either -m64 or -m32 version of that test. (not sure this matters, but I did the testing under kvm)

Re: x86: do_debug PTRACE_SINGLESTEP broken by 08d68323d1f0c34452e614263b212ca556dae47f

2009-12-21 Thread Jan Kiszka
Oleg Nesterov wrote: On 12/21, Jan Kiszka wrote: Oleg Nesterov wrote: Hmm. Now I see how wrong I was when I said this code is obviously wrong ;) Yes, it is easy to blame the code you don't understand. My apologies to all. I'll add the debugging printk's and report the output. Sorry