> Root cause time: it's wrong for the oom-killer to use SIGKILL. In fact
It has to use SIGKILL anything else might be caught and grow the user stack a page.. > it's basically always wrong to send signals from in-kernel. Signals > are a userspace IPC mechanism and using them in-kernel a) makes it hard > (or impossible) to distinguish them from userspace-originated signals Actually signals are a kernel messaging system someone repurposed for IPC. > and b) permits userspace to produce surprising results in the kernel, > which I suspect is what we're seeing here. There is enough information for kernel side code to decide whether a signal came from kernel or userspace. Then again - it's not clear that it should ever have to. Alan -- 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/