Good Afternoon,
Since 5.3 landed, brcmfmac has been broken both on bcm4329 and bcm4330
sdio devices.
The error received is as follows:
[ 19.743990] ------------[ cut here ]------------
[ 19.744914] WARNING: CPU: 1 PID: 32 at net/wireless/nl80211.c:3118
nl80211_send_chandef+0x178/0x180 [cfg80211]
[ 19.745140] Modules linked in: brcmfmac zram tegra_drm
drm_kms_helper cfbfillrect syscopyarea cfg80211 cfbimgblt sysfillrect
sysimgblt fb_sys_fops hci_uart cfbcopyarea drm btbcm bluetooth
snd_soc_tegra30_i2s snd_soc_tegra_pcm ax88179_178a
drm_panel_orientation_quirks usbnet host1x mii sg brcmutil
snd_soc_tegra30_ahub tegra_wdt sch_fq_codel ip_tables x_tables autofs4
[ 19.745473] CPU: 1 PID: 32 Comm: kworker/1:1 Tainted: G W
5.3.0-next-20190926+ #34
[ 19.745489] Hardware name: NVIDIA Tegra SoC (Flattened Device Tree)
[ 19.745549] Workqueue: events request_firmware_work_func
[ 19.745568] Backtrace:
[ 19.745607] [<c010e934>] (dump_backtrace) from [<c010ec48>]
(show_stack+0x20/0x24)
[ 19.745650] r7:60070113 r6:c12cce70 r5:00000000 r4:c12cce70
[ 19.745728] [<c010ec28>] (show_stack) from [<c0ad7998>]
(dump_stack+0x80/0x94)
[ 19.745776] [<c0ad7918>] (dump_stack) from [<c012ec8c>] (__warn+0xec/0x104)
[ 19.745796] r7:00000009 r6:bf2738b8 r5:00000000 r4:00000000
[ 19.745818] [<c012eba0>] (__warn) from [<c012ed5c>]
(warn_slowpath_fmt+0xb8/0xc0)
[ 19.745838] r9:00000009 r8:bf213d5c r7:00000c2e r6:bf2738b8
r5:00000000 r4:c1209888
[ 19.746597] [<c012eca8>] (warn_slowpath_fmt) from [<bf213d5c>]
(nl80211_send_chandef+0x178/0x180 [cfg80211])
[ 19.746640] r9:e8de0360 r8:ffffffea r7:ea07b3c0 r6:c1209888
r5:ea07b3c0 r4:ed365b18
[ 19.747685] [<bf213be4>] (nl80211_send_chandef [cfg80211]) from
[<bf22eaf0>] (nl80211_send_iface+0xa78/0xb94 [cfg80211])
[ 19.747716] r8:00000000 r7:c12098a8 r6:ed365b18 r5:ea07b3c0 r4:ed58f004
[ 19.748578] [<bf22e078>] (nl80211_send_iface [cfg80211]) from
[<bf239908>] (nl80211_notify_iface+0x58/0xe4 [cfg80211])
[ 19.748611] r10:ed593408 r9:00000005 r8:e8de0000 r7:00000007
r6:ed58f004 r5:ea07b3c0
[ 19.748627] r4:e8de0000
[ 19.749503] [<bf2398b0>] (nl80211_notify_iface [cfg80211]) from
[<bf1ff98c>] (cfg80211_init_wdev+0x118/0x130 [cfg80211])
[ 19.749525] r7:e8de0360 r6:ed58d000 r5:e8de0000 r4:ed58f004
[ 19.750410] [<bf1ff874>] (cfg80211_init_wdev [cfg80211]) from
[<bf1ffd18>] (cfg80211_netdev_notifier_call+0x374/0x7fc [cfg80211])
[ 19.750432] r5:c1209888 r4:ed58f004
[ 19.751031] [<bf1ff9a4>] (cfg80211_netdev_notifier_call [cfg80211])
from [<c0159bb0>] (notifier_call_chain+0x58/0x94)
[ 19.751068] r10:ed593408 r9:ffffffe0 r8:00000000 r7:00000005
r6:ed365d5c r5:c12c6568
[ 19.751084] r4:ffffffef
[ 19.751109] [<c0159b58>] (notifier_call_chain) from [<c0159cac>]
(raw_notifier_call_chain+0x28/0x30)
[ 19.751154] r9:ffffffe0 r8:00000000 r7:00000000 r6:00000001
r5:ed365d5c r4:00000005
[ 19.751221] [<c0159c84>] (raw_notifier_call_chain) from
[<c08e1734>] (call_netdevice_notifiers_info+0x3c/0x88)
[ 19.751275] [<c08e16f8>] (call_netdevice_notifiers_info) from
[<c08f2184>] (register_netdevice+0x500/0x5e4)
[ 19.751295] r5:c1209888 r4:ed58d000
[ 19.751317] [<c08f1c84>] (register_netdevice) from [<c08f2294>]
(register_netdev+0x2c/0x44)
[ 19.751349] r8:00000000 r7:e8de0760 r6:ed58d728 r5:ed58d000 r4:ed58d000
[ 19.751856] [<c08f2268>] (register_netdev) from [<bf3ef620>]
(brcmf_net_attach+0x14c/0x194 [brcmfmac])
[ 19.751883] r5:ed58d000 r4:ed58d6c0
[ 19.752375] [<bf3ef4d4>] (brcmf_net_attach [brcmfmac]) from
[<bf3f01f8>] (brcmf_attach+0x194/0x540 [brcmfmac])
[ 19.752408] r9:e97da600 r8:ed58d6c0 r7:e97abf80 r6:e8de2760
r5:00000000 r4:e8de0760
[ 19.752817] [<bf3f0064>] (brcmf_attach [brcmfmac]) from
[<bf3ff8f0>] (brcmf_sdio_firmware_callback+0x720/0x838 [brcmfmac])
[ 19.752841] r10:e97ab340 r9:bf407b60 r8:ea26b800 r7:00000000
r6:c1209888 r5:ed593408
[ 19.752857] r4:e9560000
[ 19.753259] [<bf3ff1d0>] (brcmf_sdio_firmware_callback [brcmfmac])
from [<bf3f12d4>] (brcmf_fw_request_done+0xbc/0x110 [brcmfmac])
[ 19.753272] Adding 109752k swap on /dev/zram3. Priority:5
extents:1 across:109752k SSFS
[ 19.753293] r10:00000001 r9:c1209888 r8:c12098a8 r7:ee4edb00
r6:ee4ea680 r5:00000000
[ 19.753308] r4:e97ab0c0
[ 19.753569] [<bf3f1218>] (brcmf_fw_request_done [brcmfmac]) from
[<c06a8e10>] (request_firmware_work_func+0x5c/0x98)
[ 19.753615] r8:c12098a8 r7:ee4edb00 r6:ee4ea680 r5:c1209888 r4:e97aba40
[ 19.753666] [<c06a8db4>] (request_firmware_work_func) from
[<c0150a88>] (process_one_work+0x304/0x7f4)
[ 19.753703] r5:edeb6b00 r4:e97aba40
[ 19.753753] [<c0150784>] (process_one_work) from [<c0150fd4>]
(worker_thread+0x5c/0x5c4)
[ 19.753792] r10:c1206100 r9:00000008 r8:ffffe000 r7:ee4ea6bc
r6:edeb6b14 r5:ee4ea680
[ 19.753810] r4:edeb6b00
[ 19.753839] [<c0150f78>] (worker_thread) from [<c0158368>]
(kthread+0x168/0x170)
[ 19.753858] r10:ede85e50 r9:c0150f78 r8:edeb6b00 r7:ed364000
r6:00000000 r5:ed2f0d80
[ 19.753877] r4:ed59a900
[ 19.753928] [<c0158200>] (kthread) from [<c01010e8>]
(ret_from_fork+0x14/0x2c)
[ 19.753964] Exception stack(0xed365fb0 to 0xed365ff8)
[ 19.754004] 5fa0: 00000000
00000000 00000000 00000000
[ 19.754037] 5fc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 19.754056] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 19.754076] r10:00000000 r9:00000000 r8:00000000 r7:00000000
r6:00000000 r5:c0158200
[ 19.754091] r4:ed2f0d80
[ 19.785561] ---[ end trace c0485f03d4b7a6d9 ]---
The iw command also fails to produce anything useful:
root@ouya:~# iw wlan0 info
command failed: No buffer space available (-105)
With the following kernel log:
[ 222.287296] ------------[ cut here ]------------
[ 222.287885] WARNING: CPU: 2 PID: 812 at net/wireless/nl80211.c:3118
nl80211_send_chandef+0x178/0x180 [cfg80211]
[ 222.287904] Modules linked in: cpufreq_conservative
cpufreq_userspace cpufreq_powersave brcmfmac zram tegra_drm
drm_kms_helper cfbfillrect syscopyarea cfg80211 cfbimgblt sysfillrect
sysimgblt fb_sys_fops hci_uart cfbcopyarea drm btbcm bluetooth
snd_soc_tegra30_i2s snd_soc_tegra_pcm ax88179_178a
drm_panel_orientation_quirks usbnet host1x mii sg brcmutil
snd_soc_tegra30_ahub tegra_wdt sch_fq_codel ip_tables x_tables autofs4
[ 222.288054] CPU: 2 PID: 812 Comm: iw Tainted: G W
5.3.0-next-20190926+ #34
[ 222.288069] Hardware name: NVIDIA Tegra SoC (Flattened Device Tree)
[ 222.288083] Backtrace:
[ 222.288118] [<c010e934>] (dump_backtrace) from [<c010ec48>]
(show_stack+0x20/0x24)
[ 222.288138] r7:60010013 r6:c12cce70 r5:00000000 r4:c12cce70
[ 222.288173] [<c010ec28>] (show_stack) from [<c0ad7998>]
(dump_stack+0x80/0x94)
[ 222.288203] [<c0ad7918>] (dump_stack) from [<c012ec8c>] (__warn+0xec/0x104)
[ 222.288221] r7:00000009 r6:bf2738b8 r5:00000000 r4:00000000
[ 222.288241] [<c012eba0>] (__warn) from [<c012ed5c>]
(warn_slowpath_fmt+0xb8/0xc0)
[ 222.288260] r9:00000009 r8:bf213d5c r7:00000c2e r6:bf2738b8
r5:00000000 r4:c1209888
[ 222.288594] [<c012eca8>] (warn_slowpath_fmt) from [<bf213d5c>]
(nl80211_send_chandef+0x178/0x180 [cfg80211])
[ 222.288616] r9:e8de0360 r8:ffffffea r7:ea27d9c0 r6:c1209888
r5:ea27d9c0 r4:e8d87be0
[ 222.289143] [<bf213be4>] (nl80211_send_chandef [cfg80211]) from
[<bf22eaf0>] (nl80211_send_iface+0xa78/0xb94 [cfg80211])
[ 222.289164] r8:d4c0032c r7:c12098a8 r6:e8d87be0 r5:ea27d9c0 r4:ed58f004
[ 222.289684] [<bf22e078>] (nl80211_send_iface [cfg80211]) from
[<bf22f440>] (nl80211_get_interface+0x58/0x9c [cfg80211])
[ 222.289705] r10:e8d87d14 r9:c12bba00 r8:ea27d900 r7:ed58f004
r6:e8de0000 r5:ea27d9c0
[ 222.289721] r4:e8d87cb4
[ 222.290004] [<bf22f3e8>] (nl80211_get_interface [cfg80211]) from
[<c0964fac>] (genl_rcv_msg+0x274/0x4e0)
[ 222.290024] r7:c1209888 r6:ea777014 r5:bf27a14c r4:bf26ff40
[ 222.290045] [<c0964d38>] (genl_rcv_msg) from [<c0962de4>]
(netlink_rcv_skb+0xc8/0x120)
[ 222.290065] r10:c1209888 r9:00000000 r8:0000001c r7:ea777000
r6:c0964d38 r5:c1209888
[ 222.290080] r4:ea27d900
[ 222.290099] [<c0962d1c>] (netlink_rcv_skb) from [<c096367c>]
(genl_rcv+0x34/0x44)
[ 222.290118] r8:e8d87d78 r7:ea27d900 r6:0000001c r5:ea27d900 r4:c12c2138
[ 222.290138] [<c0963648>] (genl_rcv) from [<c0962618>]
(netlink_unicast+0x18c/0x208)
[ 222.290153] r5:e8cee800 r4:ecf99800
[ 222.290173] [<c096248c>] (netlink_unicast) from [<c0962910>]
(netlink_sendmsg+0x27c/0x3ac)
[ 222.290191] r10:0000001c r9:00000000 r8:00000000 r7:e8cee800
r6:ea27d900 r5:c1209888
[ 222.290206] r4:e8d87f44
[ 222.290236] [<c0962694>] (netlink_sendmsg) from [<c08c2ed8>]
(___sys_sendmsg+0x23c/0x25c)
[ 222.290254] r10:c0962694 r9:00000000 r8:e9dd0680 r7:00000000
r6:0000001c r5:c1209888
[ 222.290269] r4:e8d87f44
[ 222.290293] [<c08c2c9c>] (___sys_sendmsg) from [<c08c44ec>]
(__sys_sendmsg+0x60/0x9c)
[ 222.290313] r10:00000128 r9:e8d86000 r8:c0101204 r7:e9dd0680
r6:00000000 r5:bec73440
[ 222.290328] r4:c1209888
[ 222.290349] [<c08c448c>] (__sys_sendmsg) from [<c08c4544>]
(sys_sendmsg+0x1c/0x20)
[ 222.290366] r7:00000128 r6:00b0d668 r5:00b0d5b0 r4:0000006c
[ 222.290388] [<c08c4528>] (sys_sendmsg) from [<c0101000>]
(ret_fast_syscall+0x0/0x54)
[ 222.290404] Exception stack(0xe8d87fa8 to 0xe8d87ff0)
[ 222.290423] 7fa0: 0000006c 00b0d5b0 00000003
bec73440 00000000 00000000
[ 222.290442] 7fc0: 0000006c 00b0d5b0 00b0d668 00000128 b6f00000
00b0d5b0 00000000 bec736d0
[ 222.290459] 7fe0: 00000128 bec733f0 b6e7d73f b6dfb206
[ 222.290701] ---[ end trace c0485f03d4b7a6db ]---
