Public bug reported: [Impact] Got dmesg kernel BUG while loading iwlwifi driver on machines which has 16 or more logical CPUs kernel: RIP: 0010:iwl_pcie_rxq_alloc_rbs+0x1d0/0x1f0 [iwlwifi] And it leads to wifi can't scan any APs, and leads to system hangs while suspending.
[Fix] Below commit contained in v4.17 fix the issue. ab1068d6866e iwlwifi: pcie: compare with number of IRQs requested for, not number of CPUs [Regression Potential] Low. ** Affects: linux (Ubuntu) Importance: Undecided Assignee: AceLan Kao (acelankao) Status: In Progress ** Bug watch added: Linux Kernel Bug Tracker #199551 https://bugzilla.kernel.org/show_bug.cgi?id=199551 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1805088 Title: iwlwifi fails to work on 16 or more logical CPUs machines To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1805088/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs