Hi Stephen, Tino Keitel <[EMAIL PROTECTED]> wrote:
in the last 2 days, I had 2 outages of the NIC of my Mac mini Core Duo. I checked the kernel log but I found nothing sky2 related. After reloading the module, the interface worked again.
There is a reproducible hang (due to missed IRQ) in sky2. It is more reproducible with slower CPU's like Mac Mini.
This feels like the same problem I hit once every ~2 days on my server platform or laptop [1]: both Yukon-ECs, rev 1 and 2, running NFSv4 over TCP over a gig-e switch, ia32, PCI-E. Observations: 1. problem happens with both rev-1 and 2 Yukon-ECs, so less likely a silicon bug 2. reproducible with 1500 MTU on both ends 3. reproducible with and without receive offloading disabled (ie 'ethtool -K gig0 rx off') [check with tx offload too?] 4. reproducible with two different gig-e switches and different cables 5. reproducible with MSI interrupts [check with legacy interrupts?] Is there anything that I can do to help debug this missing IRQ hang? I'm thinking of moving to the vendor driver [2] to see if the issue is entirely avoidable in software. Thanks, Daniel --- [1] sky2 0000:02:00.0: v1.14 addr 0xd6000000 irq 16 Yukon-EC (0xb6) rev 2 sky2 gig0: addr 00:16:b6:70:d8:3d sky2 gig0: enabling interface sky2 gig0: ram buffer 48K sky2 gig0: Link is up at 1000 Mbps, full duplex, flow control both <NFS hang observed> NETDEV WATCHDOG: gig0: transmit timed out sky2 gig0: tx timeout sky2 gig0: transmit ring 424 .. 401 report=427 done=427 sky2 gig0: disabling interface sky2 gig0: enabling interface sky2 gig0: ram buffer 48K sky2 gig0: Link is up at 1000 Mbps, full duplex, flow control both <NFS resumes after a few minutes> $ grep gig0 /proc/interrupts 218: 27297 0 PCI-MSI-edge gig0 --- [2] http://www.syskonnect.de/e_en/products/adapters/pcie_server/sk-9exx/software/linux/driver/install-8_31.tar.bz2 -- Daniel J Blueman - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
