dmesg troubleshooting

[Sepherosa Ziehau]

Can you post the dmesg and vmstat -iv?  I think for ahci controller,
MSI will be used by default.

On Thu, Apr 20, 2017 at 11:10 AM, Predrag Punosevac
<punosevac72 at gmail.com> wrote:
> Matthew Dillon wrote:
>
>> Your BIOS appears to be trying to emulate an ATA controller.  There is
>> no AHCI attachment.  Go into setup and see if you can tell your BIOS to
>> enable AHCI instead of ATA.
>>
>> -Matt
>
> Almost a year later even after adjusting BIOS settings (SATA controller
> was trying to emulate ATA controller so I switched to AHCI) I kept
> seeing
>
> intr 16 on cpu0 at 40001/40000 hz, livelocked limit engaged!
> intr 16 on cpu0 at 11963/20000 hz, livelock removed
>
> even on the
>
> dfly# uname -a DragonFly dfly.bagdala2.net 4.8-RELEASE DragonFly
> v4.8.0.1.g86163-RELEASE #4: Tue Mar 28 07:56:27 EST 2017
> root at dfly.bagdala2.net:/usr/obj/usr/src/sys/X86_64_GENERIC  x86_64
>
> Then I stumbled recently on this post
>
> http://yrabbit.freeshell.org/en/2012/03/04/dragonfly-bsd-under-qemu.html
>
> and sure enough
>
> echo 'hw.ioapic_enable=0' >> /boot/loader.conf.local reboot
>
> made
>
> intr 16 on cpu0 at 40001/40000 hz, livelocked limit engaged!
> intr 16 on cpu0 at 11963/20000 hz, livelock removed
>
> disapear from dmesg. Unfortunatelly I don't know enough about Advanced
> Programmable Interrupt Controller
>
> https://en.wikipedia.org/wiki/Advanced_Programmable_Interrupt_Controller
>
> so I am not sure if the above is just bandage for an actual bug which
> looks like it should have being fixed
>
> http://lists.dragonflybsd.org/pipermail/bugs/2012-March/244444.html
>
>
> Thanks,
> Predrag
>
>
>
>
>
>>
>> On Sat, Apr 16, 2016 at 4:10 PM, Predrag Punosevac
>> <punosevac72 at gmail.com>
>> wrote:
>>
>> > Sepherosa Ziehau wrote:
>> >
>> > > On Tue, Apr 5, 2016 at 11:09 AM, Predrag Punosevac
>> > > <punosevac72 at gmail.com> wrote:
>> > > > Sepherosa Ziehau <sepherosa at gmail.com> wrote:
>> > > >
>> > > >> Please post the output of 'vmstat -iv'
>> > > >
>> > > > dfly# vmstat -iv
>> > > > interrupt                                total       rate
>> > > > irq4     0: sio0                             0          0
>> > > > irq9     0: acpi0                            0          0
>> > > > irq16    0: ehci0/atapci0/atapci1  61925216594      35565
>> > >
>> > >
>> > > I'd suspect its EHCI, do you have anything uses USB?  If not,
>> disable
>> > > the EHCI from BIOS and see whether it works for you or not.
>> >
>> > I disabled completely USB from BIOS. The error is still there here is
>> the
>> > new output from vmstat
>> >
>> > intr 16 on cpu0 at 40001/40000 hz, livelocked limit engaged!
>> > dfly# vmstat -iv
>> > interrupt                                total       rate
>> > irq4     0: sio0                             0          0
>> > irq9     0: acpi0                            0          0
>> > irq16    0: atapci0/atapci1            7508403      35085
>> > irq18    0: re0                            265          1
>> > irq192   0: swi_siopoll                      0          0
>> > irq196   0: swi_vm                           0          0
>> > irq1     1: atkbd0                           7          0
>> > irq3     1: sio1                             0          0
>> > irq195   1: swi_cambio                      38          0
>> > irq197   1: swi_mp_taskq/swi_taskq        1738          8
>> > Total                                  7510451      35095
>> >
>> >
>> > Any idea? Looks like DF has a problem with HDD SATA controller.
>> >
>> > Predrag
>> >
>> >
>> >



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