Messages in this thread | | | Date | Sun, 7 Jun 2009 21:41:34 -0700 (PDT) | From | Christian Kujau <> | Subject | tg3 stops working when NFS is involved |
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Hi there,
first off: I know there are quite a few reports on the net on a similar topic, but they just don't match this particular scenario, so here it goes:
I have this Lenovo Ideapad S10 "netbook" with a buitin BCM5906M 10/100Mbps NIC. On this box nfs-kernel-server is exporting (ro) a directory to another linux client (really, only one). After a while (measured in bytes: after a few megabytes..up to a few gigabytes of traffic) the server goes away: not just the NFS server but the network card just stops working: I cannot ping the server any more and I have to go over to the netbook and reload the tg3 module. Before doing this I can verify that the netbook is unable to ping anything else - so, I figure it's not a client problem. And I'm not sure if it's NFS problem either, because restarting the NFS server doesn't do anything, I really have to rmmod/modprobe the tg3 module. OTOH, I cannot reproduce this without NFS: running e.g. iperf (TCP, UDP) did not trigger it.
As to the network load involved: the client is able to receive a bit over 2MB/s at best (client---wlan---wrt54---netbook), so the server is not busy at all.
I've noticed this behaviour with 2.6.27-14-generic (ubuntu/9.04 kernel) but running the latest -git (vanilla from kernel.org) does not change anything.
I've started to modprobe the tg3 module with tg3_debug=0x7fffffff so that it might print out more debug messages but there are no messages printed when tg3 stops working. A few maybe interesting boot messages, below, please find more details at: http://nerdbynature.de/bits/2.6.30-rc8/
[ 0.000000] ACPI: BIOS bug: multiple APIC/MADT found, using 0 [ 0.184315] ACPI: EC: non-query interrupt received, switching to interrupt mode [ 1.756338] tg3.c:v3.98 (February 25, 2009) [ 1.756507] tg3 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 1.756657] tg3 0000:02:00.0: setting latency timer to 64 [ 1.790008] tg3 0000:02:00.0: PME# disabled [ 8.839227] tg3 0000:02:00.0: PME# disabled [ 8.839664] tg3 0000:02:00.0: irq 24 for MSI/MSI-X [ 10.572500] tg3: eth0: Link is up at 100 Mbps, full duplex. [ 10.572589] tg3: eth0: Flow control is on for TX and on for RX. [ 51.892143] CE: hpet increasing min_delta_ns to 15000 nsec [ 738.011394] ACPI: EC: GPE storm detected, transactions will use polling mode [ 768.656172] ACPI: EC: missing confirmations, switch off interrupt mode. [ 4757.984170] tg3 0000:02:00.0: PCI INT A disabled
If anyone has an idea how to debug this, I'm all ears.
Thank you, Christian. -- BOFH excuse #384:
it's an ID-10-T error
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