During testing I got an OOPS with the brcmsmac (see attachment). I
suspect mac80211 is using a driver callback after the module is removed
(could be wrong here). The connection with the AP is dropped, and after
1 sec. the driver is unloaded using rmmod, which causes the driver to
unregister from mac80211.
Any clues?
Gr. AvS
Mar 12 02:51:17 lb-bun-09 kernel: [575810.085726] ieee80211 phy0: FIF_BCN_PRBRES
P_PROMISC
Mar 12 02:52:34 lb-bun-09 kernel: [575886.855388] ieee80211 phy0: brcms_ops_bss_info_changed: arp filtering: enabled true, count 0 (implement)
Mar 12 02:52:34 lb-bun-09 kernel: [575886.855933] ieee80211 phy0: brcms_ops_bss_info_changed: qos enabled: false (implement)
Mar 12 02:52:34 lb-bun-09 kernel: [575886.855943] ieee80211 phy0: brcmsmac: brcms_ops_bss_info_changed: disassociated
Mar 12 02:52:34 lb-bun-09 kernel: [575886.855951] ieee80211 phy0: brcms_ops_bss_info_changed: arp filtering: enabled false, count 0 (implement)
Mar 12 02:52:34 lb-bun-09 kernel: [575886.855957] wlan3: deauthenticating from 98:fc:11:8e:94:58 by local choice (reason=3)
Mar 12 02:52:34 lb-bun-09 kernel: [575886.880401] cfg80211: All devices are disconnected, going to restore regulatory settings
Mar 12 02:52:34 lb-bun-09 kernel: [575886.880408] cfg80211: Restoring regulatory settings
Mar 12 02:52:34 lb-bun-09 kernel: [575886.880414] cfg80211: Calling CRDA to update world regulatory domain
Mar 12 02:52:34 lb-bun-09 kernel: [575886.887653] cfg80211: World regulatory domain updated:
Mar 12 02:52:34 lb-bun-09 kernel: [575886.909709] ieee80211 phy0: FIF_BCN_PRBRESP_PROMISC
Mar 12 02:52:35 lb-bun-09 kernel: [575888.181322] cfg80211: Found new beacon on frequency: 5240 MHz (Ch 48) on phy0
Mar 12 02:52:35 lb-bun-09 kernel: [575888.297978] cfg80211: Found new beacon on frequency: 5745 MHz (Ch 149) on phy0
Mar 12 02:52:35 lb-bun-09 kernel: [575888.443474] cfg80211: Found new beacon on frequency: 5765 MHz (Ch 153) on phy0
Mar 12 02:52:36 lb-bun-09 kernel: [575888.905711] ieee80211 phy0: FIF_BCN_PRBRESP_PROMISC
Mar 12 02:52:36 lb-bun-09 kernel: [575888.906010] wlan3: authenticate with 98:fc:11:8e:94:58
Mar 12 02:52:36 lb-bun-09 kernel: [575888.906057] wlan3: send auth to 98:fc:11:8e:94:58 (try 1/3)
Mar 12 02:52:36 lb-bun-09 kernel: [575888.906546] wlan3: authenticated
Mar 12 02:52:36 lb-bun-09 kernel: [575888.907688] wlan3: deauthenticating from 98:fc:11:8e:94:58 by local choice (reason=3)
Mar 12 02:52:36 lb-bun-09 kernel: [575888.909725] wlan3: associate with 98:fc:11:8e:94:58 (try 1/3)
Mar 12 02:52:36 lb-bun-09 kernel: [575889.108021] BUG: unable to handle kernel paging request at fb35e280
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] IP: [<fb35e280>] 0xfb35e27f
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] *pde = 2e77f067 *pte = 00000000
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] Oops: 0000 [#1] SMP
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] Modules linked in: aes_generic
arc4 binfmt_misc psmouse snd_hda_codec_realtek snd_hda_intel snd_hda_codec serio_raw snd_hwdep snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd soundcore snd_page_alloc usbhid hid i915 drm_kms_helper drm i2c_algo_bit floppy intel_agp r8169 intel_gtt mii video agpgart [last unloaded: bcma]
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002]
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] Pid: 0, comm: swapper/0 Tainted: G W O 3.3.0-rc3-wl-testing-00002-g0e65d9a #1 /DG41TY
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] EIP: 0060:[<fb35e280>] EFLAGS: 00010246 CPU: 0
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] EIP is at 0xfb35e280
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] EAX: d7e61460 EBX: 000000bd ECX: 00000000 EDX: f540dfa0
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] ESI: c17b4000 EDI: d7e61784 EBP: f540dfb4 ESP: f540df64
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] Process swapper/0 (pid: 0, ti=f540c000 task=c16a1de0 task.ti=c169c000)
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] Stack:
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] c103f0ea c1066109 00000000 f540df88 f5806e60 00000000 00000000 f540dfa0
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] c17b4e10 c17b4c10 c17b4a10 d7e61460 fb35e280 c17b4810 00000100 f540dfa0
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] f540dfa0 c169df10 00000004 00000141 f540dff8 c1037b9e f0f0f0f4 f0f0f0f0
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] Call Trace:
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] [<c103f0ea>] ? run_timer_softirq+0x11a/0x2d0
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] [<c1066109>] ? rebalance_domains+0x89/0x150
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] [<c1037b9e>] __do_softirq+0x9e/0x1b0
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] [<c1037b00>] ? irq_enter+0x70/0x70
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] <IRQ>
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] [<c10379dd>] ? irq_exit+0x9d/0xc0
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] [<c14b8869>] ? smp_apic_timer_interrupt+0x59/0x88
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] [<c105da4e>] ? scheduler_ipi+0x4e/0xe0
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] [<c14b1e05>] ? apic_timer_interrupt+0x31/0x38
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] [<c10700d8>] ? count_free_highmem_pages+0x28/0x70
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] [<c1009dc8>] ? mwait_idle+0x88/0x180
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] [<c1001d8e>] ? cpu_idle+0xae/0xf0
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] [<c149cabd>] ? rest_init+0x5d/0x70
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] [<c16f5853>] ? start_kernel+0x38a/0x390
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] [<c16f52f3>] ? kernel_init+0x145/0x145
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] [<c16f5075>] ? i386_start_kernel+0x75/0x79
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] Code: Bad EIP value.
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] EIP: [<fb35e280>] 0xfb35e280 SS:ESP 0068:f540df64
Mar 12 02:52:36 lb-bun-09 kernel: [575889.112002] CR2: 00000000fb35e280
Mar 12 02:55:00 lb-bun-09 kernel: [576032.619994] INFO: rcu_sched detected stall on CPU 0 (t=15000 jiffies)
