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* rt2800 and BeagleBone Black kernel panic when connecting to access point
@ 2016-04-27  4:21 Craig McQueen
  2016-04-27  5:27 ` Vishal Thanki
  0 siblings, 1 reply; 8+ messages in thread
From: Craig McQueen @ 2016-04-27  4:21 UTC (permalink / raw)
  To: linux-wireless@vger.kernel.org

I have a D-Link DWA-140 USB Wi-Fi device which is rt2800 based (5392 chipset). I've been testing it on a BeagleBone Black running an Ubuntu 16.04 image (4.4.6 kernel).

1) Install Ubuntu 16.04 on a BeagleBone Black.
2) Add lines to /etc/network/interfaces for the device to connect to a WPA2 access point.
3) Plug the rt2800 USB Wi-Fi device into the BeagleBone Black.

Apparently when it tries to connect to the access point, I get a kernel panic. If I don't configure it (step 2 above) then the kernel panic doesn't happen.

I've tested this with two access points: my Android phone acting as a hotspot, and a cheap TP-Link TD-W8968.

Serial debug console shows:

[  306.884793] ieee80211 phy0: rt2x00usb_vendor_request: Error - Vendor Request 0x07 failed for offset 0x1004 with error -110
[  306.996804] ieee80211 phy0: rt2x00usb_vendor_request: Error - Vendor Request 0x06 failed for offset 0x1004 with error -110
[  307.057021] ieee80211 phy0: rt2x00usb_vendor_request: Error - Vendor Request 0x07 failed for offset 0x0500 with error -19
[  307.102417] Unable to handle kernel NULL pointer dereference at virtual address 0000002c
[  307.110768] pgd = ddd34000
[  307.113555] [0000002c] *pgd=00000000
[  307.117257] Internal error: Oops: 5 [#1] SMP THUMB2
[  307.122269] Modules linked in: arc4 rt2800usb rt2800lib rt2x00usb rt2x00lib mac80211 crc_ccitt cfg80211 rfkill snd_soc_simple_card omap_aes omap_sham usb_f_ecm g_ether usb_f_rndis u_ether libcomposite omap_rng rng_core snd_soc_davinci_mcasp snd_soc_edma snd_soc_omap spi_omap2_mcspi snd_soc_hdmi_codec snd_soc_core snd_pcm_dmaengine snd_pcm snd_timer snd soundcore evdev uio_pdrv_genirq uio tilcdc tda998x
[  307.159448] CPU: 0 PID: 875 Comm: wpa_supplicant Not tainted 4.4.6-ti-r15 #1
[  307.166672] Hardware name: Generic AM33XX (Flattened Device Tree)
[  307.172921] task: dcf56180 ti: dd8e6000 task.ti: dd8e6000
[  307.178470] PC is at _raw_spin_lock_irqsave+0x14/0x40
[  307.183755] LR is at rt2x00queue_get_entry+0x1e/0x54 [rt2x00lib]
[  307.189928] pc : [<c06e2560>]    lr : [<bfa9b99b>]    psr: 800b01b3
[  307.189928] sp : dd8e79a0  ip : 00000000  fp : dc94f900
[  307.201687] r10: c0b5ba88  r9 : dcda6928  r8 : dcda692c
[  307.207042] r7 : 00000054  r6 : 0000002c  r5 : 00000000  r4 : 00000002
[  307.213731] r3 : 00000150  r2 : 0000002c  r1 : 00000001  r0 : 800b0193
[  307.220423] Flags: Nzcv  IRQs off  FIQs on  Mode SVC_32  ISA Thumb  Segment none
[  307.228007] Control: 50c5387d  Table: 9dd34019  DAC: 00000051
[  307.233896] Process wpa_supplicant (pid: 875, stack limit = 0xdd8e6218)
[  307.240675] Stack: (0xdd8e79a0 to 0xdd8e8000)
[  307.245159] 79a0: 00000150 00000002 00000000 00000054 ddf26de0 bfac8803 ddf26de0 ddf27144
[  307.253559] 79c0: dcda6800 00000000 dcda692c bfac8971 00000000 c04fc087 c000a439 dde057c0
[  307.261945] 79e0: dc94f900 bfaab2ff bfaab2e9 dc94f900 000b0113 c04fc1d3 ddcc4038 dc94f914
[  307.270331] 7a00: dcda6924 dd8e7a14 00000000 c04fc2dd df925d8c dd8e7a14 dd8e7a14 dc8ba606
[  307.278715] 7a20: df925d80 dcda6938 00000000 00000000 000f4240 c095df60 c095dfa8 dcda6934
[  307.287099] 7a40: 00000018 c0034acf c0b5b098 00000006 c0c29d8c 00000040 dd8e6000 dd8e7b90
[  307.295483] 7a60: 00000007 c0034c85 004c4b29 00000000 00000101 dd8e7a68 c0b5b080 c0c40380
[  307.303889] 7a80: 0000000a 000006e1 c0b5b140 00400140 c00856ed 200b0113 ffffe000 dddfc2bc
[  307.312282] 7aa0: 00000000 00000304 dd8e7b90 ddf0e840 0000000f c0034ea7 000001ff c0034f33
[  307.320666] 7ac0: 0000001e dddfc000 da84ec40 c0628085 dd8e7ca0 dddfc090 60000013 00000000
[  307.329050] 7ae0: da84ec40 dd8e7b90 ddf0e840 00000005 00000000 ddf0e840 0000000f c05f11e5
[  307.337437] 7b00: 00000000 00000020 00007ea0 ddf0e840 00000020 c014402d 00000000 00007ea0
[  307.351143] 7b20: 00000000 00000000 00000000 dd8e7e50 dd8e7e4c dd8e7e48 dd8e7e40 dd8e7e44
[  307.364750] 7b40: dd8e7e48 00000000 00000000 00000000 00000000 00000000 024152c0 dd8e7e24
[  307.378341] 7b60: c0b5d930 00000000 dd8e7f74 dd8e7b88 c0b5ba88 dd8e6000 004c4b29 00000000
[  307.391976] 7b80: 00000001 3b9aca00 a6ad6574 00000048 00000000 000000db 00000000 dcf56180
[  307.405640] 7ba0: 00000000 00000000 00000008 ddf0e840 000000db 00000000 dd8e7b90 c01439a1
[  307.419316] 7bc0: dc026784 dc026784 dc026780 ddf4bcc0 000000db 00000000 dd8e7b90 c01439a1
[  307.433008] 7be0: dc026204 dc026204 dc026200 ddf4bf00 000000db 00000000 dd8e7b90 c01439a1
[  307.446684] 7c00: dc02612c dc02612c dc026128 ddf4bc00 000000db 00000000 dd8e7b90 c01439a1
[  307.460325] 7c20: dc026984 dc026984 dc026980 dc060cc0 000000db 00000000 dd8e7b90 c01439a1
[  307.473925] 7c40: dc026144 dc026144 dc026140 dc0603c0 000000db 00000000 dd8e7b90 c01439a1
[  307.487339] 7c60: ddb1b104 ddb1b104 ddb1b100 dc0609c0 000000db 00000000 dd8e7b90 c01439a1
[  307.500597] 7c80: dde03844 dde03844 dde03840 dc060e40 000000db 00000000 dd8e7b90 c01439a1
[  307.513712] 7ca0: dde037c4 dde037c4 dde037c0 ddb7b000 dcf0c480 c0627d0b 00000004 00000002
[  307.526882] 7cc0: ffffffed dc8ba606 dc138f00 ddb7b000 dcf0c300 dd8e7d10 dc138f00 dcf0c300
[  307.539972] 7ce0: 00000000 c06281c9 dd8e7d10 c06e1163 c0b5ba88 c06e1163 bf99f4cc c062a553
[  307.553056] 7d00: 00000000 c0c25540 000000cc c00583d7 c0629e85 c0629e4d bf99726c bf9a7980
[  307.566185] 7d20: 00000000 dd8e6000 c06ec750 00000000 dcd2e8a0 00000000 00000000 dd8e6000
[  307.579343] 7d40: c0b5cb94 c0b5ba88 024200ca dc8ba606 dcdadb00 dc138f00 dcf0c300 c05fb77d
[  307.592434] 7d60: dd8e7de0 c05fb81f dcf0c300 00000000 dd8e7de0 c00f8b8b dfda1340 dfda1460
[  307.605436] 7d80: 00000003 c00f8ccf 00000008 00000000 40000093 c001a411 0009a5fd 9a5fd18f
[  307.618349] 7da0: dde007bc 00000000 00000000 c00f451f dfd22794 00000000 00000000 dc8ba606
[  307.631178] 7dc0: dfd22794 00000001 da8b0960 c00f451f 00000000 00000000 00000000 7f5e0000
[  307.643956] 7de0: 0000014f 00000000 0014f000 dc8ba606 00000070 00000004 dd8e7e3c c0b5ba88
[  307.656720] 7e00: 0000000f 7fdbf350 7fdbf3d8 dd8e7e3c 7fdbf948 c014434d dd8e7f74 00000051
[  307.669494] 7e20: 00000070 dd8e7e3c dd8e7e40 dd8e7e44 dd8e7e48 dd8e7e4c dd8e7e50 00007ea0
[  307.682259] 7e40: 00000000 00000000 00000000 00000000 00000000 ddfb0c74 7f5e0000 dde00000
[  307.695032] 7e60: ddcaa000 00000000 00000054 00000061 7f5e0000 ffffe000 00000000 00000070
[  307.707785] 7e80: dde00780 dc8ba606 00000000 dd8e7fb0 dcf56180 80000007 7f5e07fc ddfb0c40
[  307.720566] 7ea0: dcd2e720 ddfb0c78 00000054 c06e349b 00000000 00000000 7f6dcad8 c05f2b6d
[  307.733379] 7ec0: dd8e7ee0 00000000 00000000 00000000 00000000 000008fc dd8e7f04 c008a4db
[  307.746185] 7ee0: 04f2e6a2 00000000 a8e0fcc7 ffffffff ffffffff c0143dfb 00000133 0207683c
[  307.759065] 7f00: 8dbe2200 c0b5ba88 dd8e7f74 3b9a9738 00000004 dd8e7f30 7fdbf948 c0143dfb
[  307.771961] 7f20: 7f6dcad8 00000004 3b9a9738 c0b5ba88 00000138 02073574 00000004 dc8ba606
[  307.784855] 7f40: 0207683c bed1db24 c0b5ba88 0000000f 7fdbf350 7fdbf3d8 7fdbf948 dd8e7f74
[  307.797776] 7f60: 7f6dcad8 c0144645 dd8e7f74 00000107 c000eda4 00000138 02073574 00000004
[  307.810714] 7f80: 000f4233 dc8ba606 bed1db24 7fdbf298 7f6dcad8 0000008e c000eda4 dd8e6000
[  307.823633] 7fa0: 00000000 c000ebe1 bed1db24 7fdbf298 0000000f 7fdbf350 7fdbf3d8 7fdbf948
[  307.836538] 7fc0: bed1db24 7fdbf298 7f6dcad8 0000008e 7fdb1568 7fdbf350 7fdbf3d8 7f6dcad8
[  307.849434] 7fe0: 00000000 bed1daf0 7f599bf3 b6cdc548 00000030 0000000f ff76fea7 ffff88ef
[  307.862403] [<c06e2560>] (_raw_spin_lock_irqsave) from [<bfa9b99b>] (rt2x00queue_get_entry+0x1e/0x54 [rt2x00lib])
[  307.877604] [<bfa9b99b>] (rt2x00queue_get_entry [rt2x00lib]) from [<bfac8803>] (rt2800usb_txstatus_pending+0x1a/0x54 [rt2800usb])
[  307.898952] [<bfac8803>] (rt2800usb_txstatus_pending [rt2800usb]) from [<bfac8971>] (rt2800usb_tx_sta_fifo_read_completed+0x78/0xe8 [rt2800usb])
[  307.922051] [<bfac8971>] (rt2800usb_tx_sta_fifo_read_completed [rt2800usb]) from [<bfaab2ff>] (rt2x00usb_register_read_async_cb+0x16/0x34 [rt2x00usb])
[  307.946065] [<bfaab2ff>] (rt2x00usb_register_read_async_cb [rt2x00usb]) from [<c04fc1d3>] (__usb_hcd_giveback_urb+0x4b/0xdc)
[  307.962810] [<c04fc1d3>] (__usb_hcd_giveback_urb) from [<c04fc2dd>] (usb_giveback_urb_bh+0x79/0xb8)
[  307.977423] [<c04fc2dd>] (usb_giveback_urb_bh) from [<c0034acf>] (__tasklet_action+0x5b/0xe8)
[  307.991555] [<c0034acf>] (__tasklet_action) from [<c0034c85>] (__do_softirq+0x85/0x234)
[  308.005182] [<c0034c85>] (__do_softirq) from [<c0034ea7>] (do_softirq.part.6+0x33/0x38)
[  308.018813] [<c0034ea7>] (do_softirq.part.6) from [<c0034f33>] (__local_bh_enable_ip+0x87/0x90)
[  308.033175] [<c0034f33>] (__local_bh_enable_ip) from [<c0628085>] (netlink_poll+0xf1/0x138)
[  308.047248] [<c0628085>] (netlink_poll) from [<c05f11e5>] (sock_poll+0x59/0xb0)
[  308.060337] [<c05f11e5>] (sock_poll) from [<c014402d>] (do_select+0x221/0x44c)
[  308.073395] [<c014402d>] (do_select) from [<c014434d>] (core_sys_select+0xf5/0x338)
[  308.086929] [<c014434d>] (core_sys_select) from [<c0144645>] (SyS_select+0xb5/0xf4)
[  308.100533] [<c0144645>] (SyS_select) from [<c000ebe1>] (ret_fast_syscall+0x1/0x52)
[  308.114190] Code: 8000 b672 f892 f000 (e852) 3f00
[  308.124989] ---[ end trace 727b461c8c30b5e7 ]---
[  308.135586] Kernel panic - not syncing: Fatal exception in interrupt
[  308.147983] ---[ end Kernel panic - not syncing: Fatal exception in interrupt

-- 
Craig McQueen


^ permalink raw reply	[flat|nested] 8+ messages in thread
* RE: rt2800 and BeagleBone Black kernel panic when connecting to access point
@ 2016-04-27  4:28 Craig McQueen
  0 siblings, 0 replies; 8+ messages in thread
From: Craig McQueen @ 2016-04-27  4:28 UTC (permalink / raw)
  To: linux-wireless@vger.kernel.org

I previously wrote:
> 
> I have a D-Link DWA-140 USB Wi-Fi device which is rt2800 based (5392
> chipset). I've been testing it on a BeagleBone Black running an Ubuntu 16.04
> image (4.4.6 kernel).
> 
> 1) Install Ubuntu 16.04 on a BeagleBone Black.
> 2) Add lines to /etc/network/interfaces for the device to connect to a WPA2
> access point.
> 3) Plug the rt2800 USB Wi-Fi device into the BeagleBone Black.
> 
> Apparently when it tries to connect to the access point, I get a kernel panic. If
> I don't configure it (step 2 above) then the kernel panic doesn't happen.
> 
> I've tested this with two access points: my Android phone acting as a
> hotspot, and a cheap TP-Link TD-W8968.

I should add an extra interesting detail: if I plug the Wi-Fi device into a USB hub, instead of directly into the BeagleBone Black, then the kernel panic doesn't happen, and I'm able to use it successfully (although with other problems which I'll report in further e-mails).

-- 
Craig McQueen



^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2016-06-06  6:57 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2016-04-27  4:21 rt2800 and BeagleBone Black kernel panic when connecting to access point Craig McQueen
2016-04-27  5:27 ` Vishal Thanki
2016-04-27  5:56   ` Craig McQueen
2016-04-27 10:23     ` Vishal Thanki
2016-04-27 23:23       ` Craig McQueen
2016-04-28  7:51         ` Vishal Thanki
2016-06-06  6:56   ` Craig McQueen
  -- strict thread matches above, loose matches on Subject: below --
2016-04-27  4:28 Craig McQueen

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