Insufficient diagnostics when tez.runtime.io.sort.mb is set to an invalid value

TaskAttempt 1 failed, info=[Error: Failure while running task:java.lang.IllegalArgumentException
at com.google.common.base.Preconditions.checkArgument(Preconditions.java:72)
at org.apache.tez.runtime.common.resources.MemoryDistributor.registerRequest(MemoryDistributor.java:158)
at org.apache.tez.runtime.common.resources.MemoryDistributor.requestMemory(MemoryDistributor.java:97)
at org.apache.tez.runtime.api.impl.TezTaskContextImpl.requestInitialMemory(TezTaskContextImpl.java:192)
at org.apache.tez.runtime.library.output.OrderedPartitionedKVOutput.initialize(OrderedPartitionedKVOutput.java:95)
at org.apache.tez.runtime.LogicalIOProcessorRuntimeTask$InitializeOutputCallable.call(LogicalIOProcessorRuntimeTask.java:430)
at org.apache.tez.runtime.LogicalIOProcessorRuntimeTask$InitializeOutputCallable.call(LogicalIOProcessorRuntimeTask.java:409)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)