This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1813869 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Tags added: xenial -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1813869 Title: Redpine: Driver crash with network-manager 1.10 and above Status in linux package in Ubuntu: Incomplete Bug description: SRU Justification: ------------------ Impact: ------- Kernel crash upon inserting Redpine driver Test case: ---------- 1) Install network-manager v(1.10) snap. 2) Insert Redpine modules. 3) Observe the behavior. Result: ------- Redpine driver crashes the entire kernel and below is the crash log. ... skipping ... [ 49.130185] BUG: unable to handle kernel NULL pointer dereference at 0000000000000134 [ 49.138969] IP: [<ffffffffc0517c03>] rsi_prepare_mgmt_desc+0xd3/0x2d0 [ven_rsi_91x] [ 49.244030] CPU: 0 PID: 31 Comm: kworker/u4:1 Not tainted 4.4.0-139-generic #165-Ubuntu [ 49.252988] Hardware name: Dell Inc. Edge Gateway 3001/, BIOS 01.00.00 04/17/2017 [ 49.261374] Workqueue: rsi_scan_worker rsi_scan_start [ven_rsi_91x] [ 49.268385] task: ffff880078538cc0 ti: ffff8800785e4000 task.ti: ffff8800785e4000 [ 49.276765] rsi_prepare_mgmt_desc+0xd3/0x2d0 [ven_rsi_91x] [ 49.387307] [<ffffffffc0516457>] rsi_send_probe_request+0x2c7/0x350 [ven_rsi_91x] [ 49.395784] [<ffffffffc0516702>] rsi_scan_start+0x222/0x380 [ven_rsi_91x] [ 49.403486] [<ffffffff818530c1>] ? __schedule+0x301/0x7f0 [ 49.409633] [<ffffffff8109ee4b>] process_one_work+0x16b/0x490 [ 49.416164] [<ffffffff8109f1bb>] worker_thread+0x4b/0x4d0 [ 49.422306] [<ffffffff8109f170>] ? process_one_work+0x490/0x490 [ 49.429032] [<ffffffff810a5587>] kthread+0xe7/0x100 [ 49.434589] [<ffffffff818530c1>] ? __schedule+0x301/0x7f0 [ 49.440731] [<ffffffff810a54a0>] ? kthread_create_on_node+0x1e0/0x1e0 [ 49.448042] [<ffffffff81857bf5>] ret_from_fork+0x55/0x80 [ 49.454086] [<ffffffff810a54a0>] ? kthread_create_on_node+0x1e0/0x1e0 Root cause analysis: -------------------- In nm-1.10 and above versions, MAC spoof is enabled by default. In Redpine driver, this handling is missed. Hence, Added the fix for the same. Fix: ---- Copied the Custom MAC address into driver global structure. Regression Petential: --------------------- This is a very direct issue Since the driver is crashing upon inserting the modules. we ran the multiple times insertion and deletion of modules and connected to third-party AP, did data transfer. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1813869/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp