Messages in this thread | | | Date | Thu, 19 Sep 2002 21:00:09 -0700 | From | "Martin J. Bligh" <> | Subject | Re: [BUG] x86_udelay_tsc not honoring notsc |
| |
>> Does this help (on top of John's TSC patch in rollup 0)? > > Nope. But I believe I found the root cause: it apparently takes > long enough to kick all the cpus the NMI oopser goes off during > one of the many long ints-off sections in the bootstrap phase. My > burning question now is why this only showed up in 2.5.36. Somehow > I mistook a rather blatant (c.f. SIGEMT) NMI oops for TSD %cr4 #GP. > > I'm going to guess the NMI oopser was not eager enough to trip > beforehand and recent changes repaired that. Is this close? > > If so, it's probably not worth mucking around with the bootstrap > sequence to deal with something this minor. It's not like it can > be mistaken for having hung, as console output is very consistent. > Maybe we should give NUMA-Q a couple of minutes instead of 5s?
Nah, just recode the boot sequence to make them all boot in parallel ;-)
M.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |