Hi, I searched the archives and found that you've discussed an issue I'm seeing with x86_64 kernels where crash doesn't have line numbers for modules' symbols: https://www.redhat.com/archives/crash-utility/2008-January/msg00021.html I'm using crash-4.0-6.3 on a RHEL5U1 x86_64 system with a custom 2.6.22.19 kernel. Given that the RHEL5U1 x86_64 kernels clearly do provide accurate line numbers for modules, has anyone identified how that is? I have to believe the redhat kernel is patched to fix this issue. I looked over the various redhat patches that are applied to RHEL5's 2.6.18 sources but can't see a patch that stands out as specifically addressing this x86_64 issue. But I could easily be overlooking some patch. please advise, thanks. Mike ps. please cc me as I've not yet been able to join the list -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility