On 2019-05-12 6:51 a.m., Carlo Pisani wrote: >> Problems from test like this suggest a problem outside the libata drivers themselves. >> To me, it sounds rather something like dma mapping/sync errors, or memory >> management errors (possibly dependent on hppa bus(bridge types). > It's not installed in our C3600 at the moment, > but it seems what we observed 2 days ago with Highpoint RocketRAID > 1640HTP374 card > it's PCI 32bit, 4 SATA channels, it doesn't crash, but it randomly > offers file corruptions. > The dmseg shows a lot of DMA errors. I agree. The memory errors in the PIM dump are recorded by the PDC firmware and they don't directly involve the linux drivers. Might be hardware problem. -- John David Anglin dave.anglin@xxxxxxxx