group.of.nepali.translators team mailing list archive

[Stefan Bader <stefan.bader@xxxxxxxxxxxxx>]

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

-- 
You received this bug notification because you are a member of नेपाली
भाषा समायोजकहरुको समूह, which is subscribed to Xenial.
Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1712746

Title:
  mwifiex causes kernel oops when AP mode is enabled

Status in HWE Next:
  In Progress
Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Xenial:
  New

Bug description:
  When it's in AP mode, there's quite a chance to find kernel oops
  during reboot.

  [   30.701441] BUG: unable to handle kernel NULL pointer dereference at 00000000000000f0
  [   30.709511] IP: [<ffffffffc05781b9>] mwifiex_get_cfp+0x49/0x150 [mwifiex]
  [   30.716494] PGD 0 
  [   30.718575] Oops: 0000 [#1] SMP 
  [   30.721918] Modules linked in: ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conni
  [   30.836915] CPU: 1 PID: 679 Comm: kworker/u5:0 Not tainted 4.4.0-57-generic #78-Ubuntu
  [   30.845018] Hardware name: Dell Inc. Edge Gateway 5000/      , BIOS 01.05.00 10/18/2016
  [   30.853218] Workqueue: MWIFIEX_WORK_QUEUE mwifiex_main_work_queue [mwifiex]
  [   30.860362] task: ffff880077c11980 ti: ffff880075e48000 task.ti: ffff880075e48000
  [   30.868018] RIP: 0010:[<ffffffffc05781b9>]  [<ffffffffc05781b9>] mwifiex_get_cfp+0x49/0x150 [mwifiex]
  [   30.877484] RSP: 0018:ffff880075e4bbf8  EFLAGS: 00010202
  [   30.882920] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000000004
  [   30.890221] RDX: 0010000000110010 RSI: 0000000000000004 RDI: 0000000000000004
  [   30.897520] RBP: ffff880075e4bc28 R08: 0000000000000003 R09: 0000000000000001
  [   30.904821] R10: 0000000000000001 R11: 00000000000002ff R12: 0000000000000095
  [   30.912123] R13: 0000000000000000 R14: ffff880075e40000 R15: 0000000000000095
  [   30.919425] FS:  0000000000000000(0000) GS:ffff880071300000(0000) knlGS:0000000000000000
  [   30.927701] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
  [   30.933581] CR2: 00000000000000f0 CR3: 0000000001e0a000 CR4: 00000000001006e0
  [   30.940882] Stack:
  [   30.942944]  0000000000000118 ffff880075e40000 ffff8800750c4000 ffff880075e3ed59
  [   30.950592]  0000000000000095 ffff880075e3ee01 ffff880075e4bcd0 ffffffffc05846fc
  [   30.958232]  0000000000000000 ffff880075e4bc50 ffffffff8140bcb5 ffff880075e4bc70
  [   30.965873] Call Trace:
  [   30.968397]  [<ffffffffc05846fc>] mwifiex_parse_single_response_buf+0x1fc/0x560 [mwifiex]
  [   30.976772]  [<ffffffff8140bcb5>] ? find_next_bit+0x15/0x20
  [   30.982490]  [<ffffffffc0584d9c>] mwifiex_handle_event_ext_scan_report+0x15c/0x340 [mwifiex]
  [   30.991139]  [<ffffffffc058f4c6>] mwifiex_process_sta_event+0x276/0xb40 [mwifiex]
  [   30.998806]  [<ffffffffc0578952>] mwifiex_process_event+0x102/0x1c0 [mwifiex]
  [   31.006120]  [<ffffffffc057677e>] mwifiex_main_process+0x5de/0x8d0 [mwifiex]
  [   31.013346]  [<ffffffffc0576a8f>] mwifiex_main_work_queue+0x1f/0x30 [mwifiex]
  [   31.020650]  [<ffffffff8109a575>] process_one_work+0x165/0x480
  [   31.026624]  [<ffffffff8109a8db>] worker_thread+0x4b/0x4c0
  [   31.032240]  [<ffffffff8109a890>] ? process_one_work+0x480/0x480
  [   31.038387]  [<ffffffff810a0c08>] kthread+0xd8/0xf0
  [   31.043384]  [<ffffffff810a0b30>] ? kthread_create_on_node+0x1e0/0x1e0
  [   31.050071]  [<ffffffff8183788f>] ret_from_fork+0x3f/0x70
  [   31.055596]  [<ffffffff810a0b30>] ? kthread_create_on_node+0x1e0/0x1e0
  [   31.062276] Code: 85 c9 0f 84 ef 00 00 00 40 0f b6 de 49 89 fe 41 89 cd 89 df 41 89 d4 e8 46 f1 00 00 84 c0 49 8b 86 e0 13 00 00 0f 84 98 00 
  [   31.082756] RIP  [<ffffffffc05781b9>] mwifiex_get_cfp+0x49/0x150 [mwifiex]
  [   31.089820]  RSP <ffff880075e4bbf8>
  [   31.093392] CR2: 00000000000000f0
  [   31.096787] ---[ end trace f3a762be5787f138 ]---

To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/1712746/+subscriptions