I could fix this as well now. The problem was a MTU size of 9000 on the nfs client. I tested the nfs mounts on another pc and everything was fine, so I changed the mtu on the other client as well.by hensur - Debian
I just tried to mount some nfs shares and I got this in dmesg: Quote ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7017 at drivers/net/ethernet/marvell/mv643xx_eth.c:1133 txq_reclaim+0x1bc/0x1e4 Modules linked in: dm_mod binfmt_misc evdev marvell_cesa des_generic orion_wdt md_mod kirkwood_thermal uio_pdrv_genirq uio gpio_keys fuse ipv6 autofs4 sg sd_mod uas usb_storage sata_mv liby hensur - Debian
Ok, I found the issue. I don't know why I didn't think of it earlier. I recently set up check_mk to monitor my network and also deployed the agent to the nas. The agent executes several commands on the clients and sends the output to the monitoring server. I noticed that everytime I execute "ethtool eth0" the link drops. This is exactly the same command check_mk executes evby hensur - Debian
It has been for me as well. At least until one month ago. I attached the dmesg and serial console log.by hensur - Debian
I just installed debian on my NSA325v2. Before that I have been using ArchLinux, but I wanted to use openmediavault. Since a few weeks I noticed connection drops to the NAS. After looking at the dmesg log, there seems to be an error with the ethernet connection: Quote[ 977.263477] mv643xx_eth_port mv643xx_eth_port.0 eth0: link down [ 977.269739] mv643xx_eth_port mv643xx_eth_port.0 eth0: linkby hensur - Debian