From: David Mosberger <davidm@napali.hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: ptrace problem in 2.6.9
Date: Sat, 23 Oct 2004 08:25:42 +0000 [thread overview]
Message-ID: <16762.5510.635288.946710@napali.hpl.hp.com> (raw)
In-Reply-To: <20041022170557.GW19372@frankl.hpl.hp.com>
>>>>> On Fri, 22 Oct 2004 10:05:57 -0700, Stephane Eranian <eranian@hpl.hp.com> said:
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.
Shoot, I think I ran into the same problem yesterday when running the
GCC testsuite. In my case, the problem seemed to disappear (mostly)
after downgrading "expect" from the "unstable" to the "stable"
version, but the symptoms where exactly like in your case: waitpid()
didn't return, so I suspect it really was the kernel's fault. I'll
try Roland's patch on Monday.
--david
next prev parent reply other threads:[~2004-10-23 8:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-22 17:05 ptrace problem in 2.6.9 Stephane Eranian
2004-10-23 4:53 ` Roland McGrath
2004-10-23 8:25 ` David Mosberger [this message]
2004-10-25 7:51 ` David Mosberger
2004-10-25 8:04 ` Stephane Eranian
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