Re: ptrace crash on PREEMPT 2.6.18-128.7.1.el5 kernel

2010-03-01 Thread Régis Odeyé
Hi, We experiment the same issue. It is related to this fix: linux-2.6-misc-ptrace-fix-exec-report.patch and the related bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=455060 We patched the ptrace.c with this: *** /root/rpmbuild_r5/BUILD/kernel-2.6.18/linux-2.6.18.i386/kernel/ptrace.

utrace/ptrace failing with preempt option

2010-02-16 Thread Régis Odeyé
Hi all, We are working on a RHEL5.3 based system but we customized a little bit the kernel by setting the CONFIG_PREEMPT to yes. The kernel is a 2.6.18-168. We are facing an issue with ptrace/utrace which is not setting back the preempt_count to 0 for the process or thread analyzed. With a pre