> Seems like this issue only occurs when MSI-X interrupts are enabled > for the BCM5709 chips, or am I reading it wrong? > > If I type 'echo ::interrupts | mdb -k', and isolate for > network-related bits, I get the following output:
> IRQ Vect IPL Bus Trg Type CPU Share APIC/INT# ISR(s) > 36 0x60 6 PCI Lvl Fixed 3 1 0x1/0x4 bnx_intr_1lvl > 48 0x61 6 PCI Lvl Fixed 2 1 0x1/0x10 bnx_intr_1lvl > Does this imply that my system is not in a vulnerable configuration? > Supposedly i'm losing some performance without MSI-X, but I'm not sure > in which environments or workloads we would notice since the load on > this server is relatively low, and the L2ARC serves data at greater > than 100MB/s (wire speed) without stressing much of anything. > The BIOS settings in our T610 are exactly as they arrived from Dell > when we bought it over a year ago. > Thoughts? > --eric Unfortunately I see irq type "fixed" in system that suffers from network issues with bnx. But yes, Regarding to redhat material this has something to do with Nehalem c-states (power saving etc) and/or MSI. If your system has been running for year or so, I wouldn't expect this issue to come up, we have noted this issue with R410/R710 mostly that are manufactured in Q4/2009-Q1/2010 (different hw revisions?) Yours Markus Kovero _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
