On Mon, Jan 30 2006, Jesse Brandeburg wrote: > > On Mon, 30 Jan 2006, Jens Axboe wrote: > >Running latest -git on my workstation, and I get so many TX timeouts > >it's not even funny. I count 49 since I booted about 6 hours ago. All > >net connections (naturally) stall every time this happens, and I'm going > >crazy. I don't think this happened in 2.6.15, at least I don't remember > >being so bothered by this before. > > > >I'm attaching lspci and dmesg info from boot (including all the e1000 tx > >timeouts). I've tried disabling TSO, however it doesn't make a > >difference. Or perhaps it made it slightly worse, can't really say as I > >don't know triggers this yet. Interestingly (?), e1000 seems to be the > >only device in my system that only generates interrupts on CPU0: > > > > CPU0 CPU1 > > 0: 10707182 10691994 IO-APIC-edge timer > > 4: 11806 3421 IO-APIC-edge serial > > 8: 0 0 IO-APIC-edge rtc > > 9: 0 0 IO-APIC-level acpi > > 14: 2 0 IO-APIC-edge ide0 > >169: 486260 486080 IO-APIC-level uhci_hcd:usb5, nvidia > >185: 2 0 IO-APIC-level uhci_hcd:usb4 > >193: 192871 186449 IO-APIC-level uhci_hcd:usb3 > >209: 106436 100338 PCI-MSI libata > >217: 3 0 IO-APIC-level ehci_hcd:usb1, uhci_hcd:usb2 > >225: 245685 245033 IO-APIC-level HDA Intel > >233: 972220 0 PCI-MSI eth0 > >NMI: 1943 1809 > >LOC: 21399067 21398990 > >ERR: 1 > >MIS: 0 > > > >This is a dual core pentium d. Let me knwo if you need more info and > >I'll be happy to provide it. > > Hi Jens, please be sure to disable TSO, also, is this pre-release > hardware or production? The TDH (head) and TDT (tail) registers are 5 > apart, which implies the hardware actually hung.
Not completely sure actually, as it's a box from Intel... TSO is definitely disabled, I turned it off with ethtool: nelson:~ # ethtool -k eth0 Offload parameters for eth0: rx-checksumming: on tx-checksumming: on scatter-gather: on tcp segmentation offload: off > you may want to check your timers, and enable HPET or PM Timer. There > were some issues with cpu clock throttling and the PIT timer that may be > skewing your time, AFAIK. I have both HPET and PM_TIMER enabled. > and, if you want to, please try this patch: > > e1000: add 82573 to TSO workaround code > > After shipment, it was discovered that the 82571/2 workaround for TSO is > needed for the 82573 as well. This code slightly rearchitects the > workaround code to a more clean implementation for multiple adapters. I'll give it a go right away. BTW, I tried both with the disable packet split option set and unset, made no difference. -- Jens Axboe - 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
