On Mon, 2007-08-06 at 15:07 -0400, Gregory Haskins wrote: > Hi Ingo, > I think there is a latent race condition somewhere in the code. We > find that -rt works on our 4-way (and under) systems, but have problems > on our 8-ways. > > If you run without nmi_watchdog, the system will sometimes boot (but > very very very slow), and sometimes it will softlockup. If you turn on > nmi_watchdog, the system detects a hang (probably at the point where the > system gets really slow without it). We notice no problems on the > 4-ways. > > The system where we can reproduce this is a Dell 690 with Dual 2Ghz > Quad-core Xeon 5335s. I've attached some relevant info. Let me know if > you need more. Could you drop the following config options and test again? # # Processor type and features # CONFIG_TICK_ONESHOT=y CONFIG_NO_HZ=y CONFIG_HIGH_RES_TIMERS=y (btw, added LKML to the CC list ..) Daniel - To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
