I am on Ubuntu 14.10 and I see this error every time. I just sent many "crash reports" about that. kernel 3.16.0-30-generic
[ 12.449818] iwlwifi 0000:08:00.0: irq 62 for MSI/MSI-X [ 12.961430] iwlwifi 0000:08:00.0: loaded firmware version 25.228.9.0 op_mode iwlmvm [ 12.972905] iwlwifi 0000:08:00.0: Detected Intel(R) Wireless N 7260, REV=0x144 [ 12.972969] iwlwifi 0000:08:00.0: L1 Enabled - LTR Enabled [ 12.973200] iwlwifi 0000:08:00.0: L1 Enabled - LTR Enabled [ 20.244107] iwlwifi 0000:08:00.0: L1 Enabled - LTR Enabled [ 20.244658] iwlwifi 0000:08:00.0: L1 Enabled - LTR Enabled [ 456.638342] iwlwifi 0000:08:00.0: Microcode SW error detected. Restarting 0x2000000. [ 456.638353] iwlwifi 0000:08:00.0: CSR values: [ 456.638357] iwlwifi 0000:08:00.0: (2nd byte of CSR_INT_COALESCING is CSR_INT_PERIODIC_REG) etc -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1405842 Title: Microcode SW error detected. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1405842/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs