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Re: kernel 4.15.7/64bit, C3600 is unstable during heavy I/O on PCI

Hi Grant,

On 2018-03-17 12:12 PM, Grant Grundler wrote:
"Master Abort" means the MMIO
transaction timed out - usually due to the device not responding to an
MMIO read.
In lba_pci.c and sba_iommu.c, it says "BE WARNED: register writes are posted" and need to be followed by a read.  It seems there are a some routines in these modules that have writes that aren't followed by a read.  One is lba_wr_cfg(). Another might be the macro
LBA_CFG_RESTORE().  Are these okay?

It seems probable that the problem that Carlo is having is a conflict between devices.


John David Anglin  dave.anglin@bell.net

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