Hi, Am 02.01.2013 20:17, schrieb Christoffer Dall: > I am seeing some brutal crashes with QEMU running virtio using KVM/ARM. > > The culprit seems to be when the process runs out of virtual address > space on 32-bit systems due to some subsystem (virtio?) creating a > large number of pthreads under heavy workloads. > > Unfortunately my QEMU expertise is too limited to pin-point the exact > fix, nor do I have resources right now to go into it, but I wanted to > raise this issue and spread general awareness. > > Is this a known issue or something that needs to be tracked/documented at > least?
It is a known issue that I reported long ago, but there have been higher priorities. ;) Note that this failure is not specifically about creating threads but about thread creation being one of several operations requiring some free virtual mem, it might as well be a malloc another run. If you trace memory usage of the process you will likely see dramatic changes over time... why exactly is still to be investigated. Andreas -- SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
