Am 01.09.2015 um 16:15 schrieb Thomas Lamprecht: >>> There is an huge amount of interrupts from the network card and also >>> from your raid. >>> >>> I'd guess that the main problem it's your network card, make sure the >>> driver of eth0 and eth3 are configured and installed correctly. >> Ok, I'll check'em again. >> >> What do you think about compiling a newer kernel, since there seems >> to be a patch for specially this problem? > Hmm, but then it's quite strange that it happens on only one node as > they all have the same kernel and hardware, I guess? Yes, that's the strange thing.
> > You will need the <version>-pve kernel for Proxmox VE, and the options > are 2.6.32.x (OpenVZ kernel) and the 3.10.x (RHEL 6 kernel). I'll try compile from https://git.proxmox.com/?p=pve-kernel-3.10.0.git; we nethertheless need the iscsitarget module as there seems to be a bug in the dkms module which we had to fix manually. > > PVE4 beta has the 4.1.x kernel at the moment, maybe this could solve the > problem if it's kernel related. I'm not sure, but wouldn't it make sense to give the 3.19.8 pve kernel a try? Best regards, Falko > >> ---------------->8-------------------------------8<---------------------- >> Since commit 77873803363c "net_dma: mark broken" we no longer pin dma >> engines active for the network-receive-offload use case. As a result >> the ->free_chan_resources() that occurs after the driver self test no >> longer has a NET_DMA induced ->alloc_chan_resources() to back it up. A >> late firing irq can lead to ksoftirqd spinning indefinitely due to the >> tasklet_disable() performed by ->free_chan_resources(). Only >> ->alloc_chan_resources() can clear this condition in affected kernels. >> >> This problem has been present since commit 3e037454bcfa "I/OAT: Add >> support for MSI and MSI-X" in 2.6.24, but is now exposed. Given the >> NET_DMA use case is deprecated we can revisit moving the driver to use >> threaded irqs. ... >> ---------------->8-------------------------------8<---------------------- >> >> from: >> >> https://www.kernel.org/pub/linux/kernel/v3.0/ChangeLog-3.10.33 >> >> Cheers, >> Falko >> > > _______________________________________________ pve-user mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
