On Sat, Jul 28, 2012 at 5:10 AM, Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx> wrote: > On 7/27/2012 9:20 PM, Stirling Westrup wrote: >> On Fri, Jul 27, 2012 at 6:14 PM, Stirling Westrup <swestrup@xxxxxxxxx> wrote: >>> On Fri, Jul 27, 2012 at 1:24 PM, Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx> wrote: >>>> On 7/27/2012 11:40 AM, Stirling Westrup wrote: >>>> >>>>> I recently purchased a large system for use as a backup server for a >>>>> pair of small businesses. It contains a boot drive plus 10 more >>>>> storage drives. Despite having three onboard SATA controllers, the >>>>> motherboard didn't have enough SATA connectors for all the drives, so >>>>> I installed a pair of identical SiI3114 raid cards to handle the extra >>>>> connections. It has a Sandy Bridge chipset, so I installed a 3.2 >>>>> kernel. >>>>> >>>>> # uname -a >>>>> Linux ttt 3.2.0-0.bpo.2-amd64 #1 SMP Fri Jun 29 20:42:29 UTC 2012 >>>>> x86_64 GNU/Linux >>>> ... >>>>> Okay, enough background. Here's the issue: I had no trouble building >>>>> and sync'ing the first array, but when I try to sync the second array, >>>>> I always get the following dmesg an hour or so into the process: >>>>> >>>>> irq 19: nobody cared (try booting with the "irqpoll" option) >>>>> [ 346.120572] Pid: 1100, comm: md1_resync Not tainted >>>> 3.2.0-0.bpo.2-amd64 #1 >>>>> [ 346.120573] Call Trace: >>>>> ... >>>>> [ 346.120697] handlers: >>>>> [ 346.120699] [<ffffffffa00479e0>] ahci_interrupt >>>>> [ 346.120702] [<ffffffffa02f17ec>] sil_interrupt >>>>> [ 346.120703] Disabling IRQ #19 >>>>> [ 346.122145] sched: RT throttling activated >>>> ... >>>>> From this point onward syncing drops to a tiny fraction of its >>>>> previous speed. I've tried booting with 'irqpoll' as the error message >>>>> suggests, but it has had no effect. I'm really not sure if there is a >>>>> conflict between my two SiI3114's or between the SiI's and the Marvell >>>>> controller (although I've never had an issue with Marvell in the >>>>> past), nor how to go about diagnosing or fixing this. I'll include a >>>>> full dmesg dump below, as well as my currently loaded modules. If >>>>> anyone wants any further info, just ask. >>>> >>>> Have you tried irqbalance to spread the interrupts across cores/cache >>>> domains? https://irqbalance.org/documentation.html >>>> >>> >>> Thanks for the tip! I installed irqbalance and rebooted the system, >>> and everything has been running smoothly for the last two hours. I'll >>> let everyone know tomorrow if it actually finished the full 20-hour >>> resync without incidence. > > Try irqpoll and irqbalance together. Didn't help. In fact, this time the kernel felt it had to disable BOTH IRQ#19 and then IRQ#17 -- Stirling Westrup Programmer, Entrepreneur. https://www.linkedin.com/e/fpf/77228 http://www.linkedin.com/in/swestrup http://technaut.livejournal.com http://sourceforge.net/users/stirlingwestrup -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
