> Stephane> Hi Roland, I have some problems with the recent > Stephane> modifications to the Ptrace infrastructure in 2.6.9 > Stephane> release. Basically I have the smiple test program attached > Stephane> to this E-mail and it hangs in 2.6.9 but not in > Stephane> 2.6.9-rc4. Somehow the first waitpid() does not return. It > Stephane> is not clear to me why. Is there something Ineed to > Stephane> change in the call itself? I am running all of this on a > Stephane> 2-way IA-64 machine with 2.6.9. I have not tried on x86. > > David> Shoot, I think I ran into the same problem yesterday when > David> running the GCC testsuite. In my case, the problem seemed to > David> disappear (mostly) after downgrading "expect" from the > David> "unstable" to the "stable" version, but the symptoms where > David> exactly like in your case: waitpid() didn't return, so I > David> suspect it really was the kernel's fault. I'll try Roland's > David> patch on Monday. > > Then again, may be not: it appears that the bug only relates to > PTRACE'd processes, which "expect" is unlikely to do. Oh, well, would > have been too easy. > In any case, that fixed the problem for me.
-- -Stephane
