Alan Cox <[EMAIL PROTECTED]> writes: >> analysis. Provided that timer interrupts are not blocked, this patch >> might enable them to get a crash dump in such a situation by activating >> softdog. > >You want the NMI based anti lockup stuff for that. If the box locks up >then generally softdog will fail. The NMI based debug >(CONFIG_DETECT_SOFTLOCKUP) is the option you want.
Thanks for your comment. I'll look into it, but unfortunately, most of our customers are running much older kernels (e.g. 2.6.9-based from RHEL4.x) which don't have the option, and some non-negligible number of them are running on non-IA platforms, whereas right now the option seems to be implemented only in i386 and x86_64 (correct me if I'm wrong). Anyways, I'll try to look for a way to manually trigger NMI on their non -IA boxes, preferably without any additional hardware. Regards, Ken - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
