Hi meta-freescale gurus,
I would like to get in contact with people running a fresh yocto-built
Linux on a mvme2500 (Freescale p2020 QorIQ e500v2).
Reason is that I have freshly built and tested a core-image-minimal on
the mvme2500 and it gets a kernel panic apparently upon some Machine
Check.
Comparing the startup of this version with a working one I built back in
2012 I see that there is something different in the PCI department:
< …
PCI: Probing PCI hardware
fsl-pci ffe09000.pcie: PCI host bridge to bus 9000:00
pci_bus 9000:00: root bus resource [io 0x0000-0xffff]
pci_bus 9000:00: root bus resource [mem 0xa0000000-0xbfffffff] (bus
address [0xe0000000-0xffffffff])
pci_bus 9000:00: root bus resource [bus 00-ff]
pci 9000:01:00.0: reg 0x24: initial BAR value 0xa0000000 invalid
…>
Fairly near the end of startup the kernel panic looks like:
<…
Disabling lock debugging due to kernel taint
Machine check in kernel mode.
Caused by (from MCSR=10008): Bus - Read Data Bus Error
Kernel panic - not syncing: Unrecoverable Machine check
CPU: 1 PID: 1 Comm: swapper/0 Tainted: G M
4.19.26+gc0c214110624 #1
Call Trace:
…>
After Call Trace: the board reboots.
Tested this on two different boards that both function OK with an old
distribution I put together in 2012, and both show the same behavior.
So if someone has experienced this on a similar board I would very much
like to know how to get rid of some panic.
Thanks for your time!
Best regards,
Teun Scheffel
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