> Your utrace-ptrace-compat kernel is not the full utrace implementation which > the testsuite targets, it is only its `regset' part. Therefore some (all?) > of the crashers just do not apply to such non-full-utrace kernels.
That is not true, unless I am misunderstanding what you are referring to. utrace-ptrace-compat is the "everything of utrace" branch. (The kernels you tested a while back that were "just regset parts" were not any of the existing utrace branches at all, but based on the user_regset patch series that is now in 2.6.25-rc1.) > Even if it would be the full utrace kernel all the crasher problems were > already fixed except clone-get-signal which has unfortunately very rare > reproducibility. It reproduces probably best on s390. Still it was seen even > on x86_64. It is unfortunately very probably your machine just did not > reproduce it. Since these were intermittent race crashes, I don't like to declare that we are sure they are fixed just because previously reliable reproducers no longer crash for us. I hope that's so, but that's why more long and grueling testing is good to have. Thanks, Roland