PCIE device errors after linux kernel upgrade

[Leon Ravich]

>> Have you looked up the error values from the EDAC driver?
[   37.961580] PCIE error(s) detected
[   37.964971] PCIE ERR_DR register: 0x00020000
    => Invalid CONFIG_ADDR/PEX_CONFIG_DATA access detected
[   37.969229] PCIE ERR_CAP_STAT register: 0x00000041               =>
Transaction originated from PEX_CONFIG_ADDR/PEX_CONFIG_DATA.
[   37.974008] PCIE ERR_CAP_R0 register: 0x00000800
=> PCI Express packet format 0,  PCI express packet type  4
[   37.978614] PCIE ERR_CAP_R1 register: 0x00000000
[   37.983218] PCIE ERR_CAP_R2 register: 0x00000000
[   37.987823] PCIE ERR_CAP_R3 register: 0x00000000

>> If it's just a reboot without panic, could there be a watchdog resetting the
>> board?

does not look like a  watch dog , no watch dog printout. no freeze .



On 6 August 2013 10:36, Johannes Thumshirn <johannes.thumshirn at men.de> wrote:
> On Tue, Aug 06, 2013 at 10:26:18AM +0300, Leon Ravich wrote:
>> Hi Johannes
>> no panic just reboot.
>> it is not the first read, it takes few minutes of work with pcie to reboot.
>>
>
> Ah, OK. Unfortunately I can't really help you then.
>
> Have you looked up the error values from the EDAC driver?
>
> If it's just a reboot without panic, could there be a watchdog resetting the
> board?
>
>
>>
>>
>> On 6 August 2013 10:07, Johannes Thumshirn <johannes.thumshirn at men.de> wrote:
>> > On Mon, Aug 05, 2013 at 09:38:45AM -0600, Bjorn Helgaas wrote:
>> >> [+cc linuxppc-dev]
>> >>
>> >> On Mon, Aug 5, 2013 at 5:17 AM, Leon Ravich <lravich at gmail.com> wrote:
>> >> > Hi all ,
>> >> > I am trying to upgrade ours embedded device (freescale powerPC P2020 cpu)
>> >> > linux kernel  , till now we used 2.6.32 I am trying to upgrade to 3.8.13 .
>> >> > I took the source from freescale git:
>> >> > git://git.freescale.com/ppc/sdk/linux.git
>> >> >
>> >> > on our embedded device we have an FPGA connected through PCIE .
>> >> >
>> >> > on each boot we loading the rbf design to the FPGA and the rescan pci bus to let
>> >> > kernel detect it .
>> >> >
>> >> > during the rescan I getting error messages:
>> >> >  genirq: Setting trigger mode 0 for irq 27 failed
>> >> > (mpc8xxx_irq_set_type+0x0/0xec)
>> >> > [   22.060898] genirq: Setting trigger mode 0 for irq 28 failed
>> >> > (mpc8xxx_irq_set_type+0x0/0xec)
>> >> > [   22.069461] genirq: Setting trigger mode 0 for irq 31 failed
>> >> > (mpc8xxx_irq_set_type+0x0/0xec)
>> >> > [   22.078010] genirq: Setting trigger mode 0 for irq 32 failed
>> >> > (mpc8xxx_irq_set_type+0x0/0xec)
>> >> > [   22.086576] genirq: Setting trigger mode 0 for irq 33 failed
>> >> > (mpc8xxx_irq_set_type+0x0/0xec)
>> >> > [   22.095143] genirq: Setting trigger mode 0 for irq 37 failed
>> >> > (mpc8xxx_irq_set_type+0x0/0xec)
>> >> > [   22.103715] genirq: Setting trigger mode 0 for irq 38 failed
>> >> > (mpc8xxx_irq_set_type+0x0/0xec)
>> >> > [   22.112282] genirq: Setting trigger mode 0 for irq 39 failed
>> >> > (mpc8xxx_irq_set_type+0x0/0xec)
>> >>
>> >> Hmm, I don't know much about IRQ issues.
>> >>
>> >> > [   37.945785] pci 0000:00:00.0: ignoring class 0x0b2000 (doesn't
>> >> > match header type 01)
>> >>
>> >> There's a recent patch related to this:
>> >> http://lkml.kernel.org/r/1374823418-1550-1-git-send-email-Chunhe.Lan@freescale.com
>> >>
>> >> > [   37.953640] PCIE error(s) detected
>> >> > [   37.953858] pci 0000:00:00.0: PCI bridge to [bus 01-ff]
>> >> > [   37.953988] pci 0000:00:00.0: BAR 8: assigned [mem 0xc0000000-0xdfffffff]
>> >> > [   37.953994] pci 0000:00:00.0: BAR 7: can't assign io (size 0x10000)
>> >> > [   37.954000] pci 0000:01:00.0: BAR 0: assigned [mem 0xc0000000-0xc00fffff]
>> >> > [   37.954013] pci 0000:01:00.0: BAR 1: assigned [mem 0xc0100000-0xc017ffff]
>> >> > [   37.954025] pci 0000:01:00.0: BAR 2: assigned [mem 0xc0180000-0xc01fffff]
>> >> > [   37.954036] pci 0000:00:00.0: PCI bridge to [bus 01]
>> >> > [   37.954041] pci 0000:00:00.0:   bridge window [mem 0xc0000000-0xdfffffff]
>> >> > [   38.007354] PCIE ERR_DR register: 0x80020000
>> >> > [   38.011613] PCIE ERR_CAP_STAT register: 0x00000041
>> >> > [   38.016392] PCIE ERR_CAP_R0 register: 0x00000800
>> >> > [   38.020997] PCIE ERR_CAP_R1 register: 0x00000000
>> >> > [   38.025602] PCIE ERR_CAP_R2 register: 0x00000000
>> >> > [   38.030207] PCIE ERR_CAP_R3 register: 0x00000000
>> >> >
>> >> >
>> >> > and after a few minutes I linux reboot it self,
>> >> >
>> >> >
>> >> > where can I start debugging it??
>> >>
>> >> I'd start by applying the header quirk patch above, then comparing the
>> >> complete console log (boot with "ignore_loglevel") from 2.6.32 and
>> >> 3.8.13.
>> >>
>> >> Bjorn
>> >> _______________________________________________
>> >> Linuxppc-dev mailing list
>> >> Linuxppc-dev at lists.ozlabs.org
>> >> https://lists.ozlabs.org/listinfo/linuxppc-dev
>> >
>> > Hi,
>> >
>> > I have a similar problem here on a P4080 based board with the same 3.8 Kernel
>> > from freescale git. Does your system panic (maybe due to a machine check
>> > exception)?  If yes could it be the first read from the PCI device?
>> >
>> > Johannes
>>
>>
>>
>> --
>> Leonid Ravich



-- 
Leonid Ravich