From mboxrd@z Thu Jan 1 00:00:00 1970 From: keith.busch@intel.com (Keith Busch) Date: Thu, 28 May 2015 21:03:50 +0000 (UTC) Subject: Problems writing to intel P3700 NVMe drive In-Reply-To: References: <00c601d098cd$41255e30$c3701a90$@storageio.com> <00cd01d098d1$94047010$bc0d5030$@storageio.com> <000a01d098ee$b52ce0c0$1f86a240$@storageio.com> Message-ID: Perhaps not a desirable/permanent solution, but for everyone's benefit, we can work-around the problem with kernel parameter: pci=pcie_bus_safe Using 'pcie_bus_perf' instead may also work, though your original solution of just using x86 sounded perfectly reasonable to me. :) On Thu, 28 May 2015, Pavilion Storage wrote: > Thanks to Keith Busch for the providing the clues. > The problem was that the PCIe MPSS on the drive and the CPU root > complex did not match and that caused a problem. Setting it to a > common value fixed the problem. > Kishore