From mboxrd@z Thu Jan 1 00:00:00 1970 From: nisha.miller420@gmail.com (Nisha Miller) Date: Mon, 22 Aug 2016 08:52:10 -0700 Subject: Linux AER reporting Message-ID: Hi all, We have a PCIE SSD controller using NVME. This controller works on Windows and Linux. However, we are seeing a problem under Linux. In the nvme Linux driver in function nvme_kthread() the CSTS register is read once a second to check for controller status failure. In our case we see that occasionally this register is read as 0xFFFFFFFF. Whenever this happens, the kernel just hangs. This seems to be PCIe read error and we are trying to gather further information. How does one use Linux AER with the nvme driver? We are using Centos 7.2 with Kernel 3.19.8. PCIe AER has been enabled in the kernel and aerdriver.forceload=y is set in the command line. TIA Nisha Miller