On Tue, 24 Jun 2014, Josh Hunt wrote: > Anyone you'd suggest adding to this thread to get other feedback about > tracking page allocation failures? I could also spin up a patch and cc them. >
Page allocation failures happen all the time, mostly because of large-order allocations (more than PAGE_ALLOC_COSTLY_ORDER) or allocations done with GFP_ATOMIC where it's impossible to reclaim or compact memory to allocate. Because of this, they are fairly easy to trigger from userspace without having to do much. Why would this qualify for a taint? I have never debugged a kernel crash that I traced back to an earlier page allocation failure and said "oh, if I had only known about that page allocation failure earlier!". If one of them is going to cause an issue, it probably is at the point of the crash and you shouldn't have to "investigate" much. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
