Hi folks, I am trying to get mainline Linux running on my Wink Hub v1 (imx28 with Broadcom 4334 via SDIO). I am using the nvram.conf that the vendor shipped with back in 2014, and brcmfmac driver. I experienced the below panics at some point during the night, printed to the serial console. The device was idle, but obviously receiving broadcast traffic from the rest of the network. This is a near mainline kernel, running an OpenWrt mainline userland. The interface is configured as a station to my AP. # iw dev phy0-sta0 info Interface phy0-sta0 ifindex 2 wdev 0x1 addr 34:23:ba:eb:14:5f ssid Dawes type managed wiphy 0 channel 1 (2412 MHz), width: 20 MHz, center1: 2412 MHz txpower 31.00 dBm # I know absolutely nothing about WiFi drivers, so would need to be walked through collecting any information that will help to fix this. # iw dev phy0-sta0 info Interface phy0-sta0 ifindex 2 wdev 0x1 addr 34:23:ba:eb:14:5f ssid Dawes type managed wiphy 0 channel 1 (2412 MHz), width: 20 MHz, center1: 2412 MHz txpower 31.00 dBm FWIW, the performance of the WiFi interface is pretty poor. It seems to hang periodically, and when it is running, the best throughput I get is around 1.4MB/s copying an unpacked tarball from a local computer to /dev/null over wifi. This does seem to be a problem with the vendor kernel as well, as I have seen comments to the effect of "Poke the wifi interface to keep it awake" while reviewing their firmware update scripts! FWIW, the vendor firmware constrains the radio to only connect to 2.4GHz AP's, even though it is apparently 5GHz capable too. Please let me know if I can provide any more information. Regards, Rogan --8x-- vendor nvram.conf ------ # SWB-B53_B1_R04_eLNA 10/21/2011 manfid=0x2d0 prodid=0x05c1 vendid=0x14e4 devid=0x4380 boardtype=0x05de boardrev=0x1105 boardnum=22 macaddr=00:90:4c:c5:12:38 sromrev=0 boardflags=0x10081a00 xtalfreq=37400 nocrc=1 ag0=255 aa2g=1 ccode=ALL pa0itssit=0x20 #PA parameters for 2.4GHz (0x15A7,0xFD54,0xFF4A) pa0b0=0x19B7 pa0b1=0xFD2A pa0b2=0xFF7B extpagain2g=2 extpagain5g=2 # rssi params for 2.4GHz rssismf2g=0x2 rssismc2g=0x7 rssisav2g=0x1 cckPwrOffset=0 # rssi params for 5GHz rssismf5g=0x8 rssismc5g=0x8 rssisav5g=0x1 #PA parameters for lower a-band pa1lob0=5516 pa1lob1=-680 pa1lob2=-182 #PA parameters for midband pa1b0=5560 pa1b1=-683 pa1b2=-178 #PA paramasdeters for high band pa1hib0=5438 pa1hib1=-681 pa1hib2=-193 rxpo5g=0 maxp2ga0=66 ofdm2gpo=0x22222222 mcs2gpo0=0x4444 mcs2gpo1=0x4444 maxp5ga0=0x4a maxp5gla0=0x4a maxp5gha0=0x4a ofdm5gpo=0x66666666 ofdm5glpo=0x66666666 ofdm5ghpo=0x66666666 mcs5gpo0=0x8888 mcs5gpo1=0x8888 mcs5glpo0=0x8888 mcs5glpo1=0x8888 mcs5ghpo0=0x8888 mcs5ghpo1=0x8888 #il0macaddr=00:90:4c:c5:12:38 wl0id=0x431b pagc2g=0x10 #dacgc2g=4 txalpfbyp=1 #For SEMCO B53-R04-eLNA Module swctrlmap_2g=0x0c0c0c0c,0x12121212,0x02020202,0x11202,0x1ff swctrlmap_5g=0x40404040,0x20202020,0x20202020,0x12202,0x2f8 gain=32 triso2g=12 triso5g=8 hostwake=0x40 hostrdy=0x41 usbrdy=0x03 usbrdydelay=100 deadman_to=0xffffffff muxenab=0x1 tssioffsetmax=27 PwrOffset40mhz2g=0 PwrOffset40mhz5g=-8 tssioffsetmax5gl=21 tssioffsetmax5gm=23 tssioffsetmax5gh=20 --8x-- vendor nvram.conf ------ [13591.698109] ------------[ cut here ]------------ [13591.703529] WARNING: CPU: 0 PID: 6 at net/wireless/sme.c:839 __cfg80211_connect_result+0x68c/0x700 [13591.713058] Modules linked in: g_mass_storage usb_f_mass_storage g_ether usb_f_rndis brcmfmac brcmutil usb_f_ecm u_ether libcomposite configfs [13591.726764] CPU: 0 PID: 6 Comm: kworker/u2:0 Not tainted 6.1.35-00014-g7e67972bd0c9-dirty #4 [13591.735338] Hardware name: Freescale MXS (Device Tree) [13591.740567] Workqueue: cfg80211 cfg80211_event_work [13591.745651] unwind_backtrace from show_stack+0x10/0x14 [13591.751056] show_stack from dump_stack_lvl+0x38/0x4c [13591.756248] dump_stack_lvl from __warn+0x78/0x134 [13591.761190] __warn from warn_slowpath_fmt+0x74/0xac [13591.766308] warn_slowpath_fmt from __cfg80211_connect_result+0x68c/0x700 [13591.773254] __cfg80211_connect_result from cfg80211_process_wdev_events+0xf8/0x158 [13591.781064] cfg80211_process_wdev_events from cfg80211_process_rdev_events+0x30/0x78 [13591.789023] cfg80211_process_rdev_events from cfg80211_event_work+0x20/0x2c [13591.796223] cfg80211_event_work from process_one_work+0x240/0x5d4 [13591.802541] process_one_work from worker_thread+0x30/0x4b8 [13591.808225] worker_thread from kthread+0xd8/0xfc [13591.813072] kthread from ret_from_fork+0x14/0x3c [13591.817905] Exception stack(0xc482dfb0 to 0xc482dff8) [13591.823051] dfa0: 00000000 00000000 00000000 00000000 [13591.831321] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [13591.839586] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 [13591.846593] irq event stamp: 2983 [13591.850247] hardirqs last enabled at (2993): [<c006a204>] __up_console_sem+0x54/0x64 [13591.858465] hardirqs last disabled at (3002): [<c006a1f0>] __up_console_sem+0x40/0x64 [13591.866467] softirqs last enabled at (2884): [<c07ad5d8>] cfg80211_get_bss+0x254/0x2fc [13591.874860] softirqs last disabled at (2834): [<c07ad3d8>] cfg80211_get_bss+0x54/0x2fc [13591.883180] ---[ end trace 0000000000000000 ]--- [13595.798665] ------------[ cut here ]------------ [13595.803445] WARNING: CPU: 0 PID: 6 at net/wireless/sme.c:1074 __cfg80211_roamed+0x30c/0x334 [13595.812471] Modules linked in: g_mass_storage usb_f_mass_storage g_ether usb_f_rndis brcmfmac brcmutil usb_f_ecm u_ether libcomposite configfs [13595.826184] CPU: 0 PID: 6 Comm: kworker/u2:0 Tainted: G W 6.1.35-00014-g7e67972bd0c9-dirty #4 [13595.836235] Hardware name: Freescale MXS (Device Tree) [13595.841467] Workqueue: cfg80211 cfg80211_event_work [13595.846547] unwind_backtrace from show_stack+0x10/0x14 [13595.851948] show_stack from dump_stack_lvl+0x38/0x4c [13595.857141] dump_stack_lvl from __warn+0x78/0x134 [13595.862084] __warn from warn_slowpath_fmt+0x74/0xac [13595.867189] warn_slowpath_fmt from __cfg80211_roamed+0x30c/0x334 [13595.873444] __cfg80211_roamed from cfg80211_process_wdev_events+0xdc/0x158 [13595.880557] cfg80211_process_wdev_events from cfg80211_process_rdev_events+0x30/0x78 [13595.888512] cfg80211_process_rdev_events from cfg80211_event_work+0x20/0x2c [13595.895712] cfg80211_event_work from process_one_work+0x240/0x5d4 [13595.902034] process_one_work from worker_thread+0x30/0x4b8 [13595.907722] worker_thread from kthread+0xd8/0xfc [13595.912567] kthread from ret_from_fork+0x14/0x3c [13595.917396] Exception stack(0xc482dfb0 to 0xc482dff8) [13595.922544] dfa0: 00000000 00000000 00000000 00000000 [13595.930814] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [13595.939079] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 [13595.946201] irq event stamp: 3183 [13595.949858] hardirqs last enabled at (3193): [<c006a204>] __up_console_sem+0x54/0x64 [13595.958158] hardirqs last disabled at (3214): [<c006a1f0>] __up_console_sem+0x40/0x64 [13595.966168] softirqs last enabled at (3212): [<c00097a4>] __do_softirq+0x234/0x3fc [13595.974197] softirqs last disabled at (3201): [<c001ff10>] __irq_exit_rcu+0x15c/0x1bc [13595.982561] ---[ end trace 0000000000000000 ]--- [13744.581391] ------------[ cut here ]------------ [13744.586286] WARNING: CPU: 0 PID: 6 at net/wireless/sme.c:839 __cfg80211_connect_result+0x68c/0x700 [13744.595797] Modules linked in: g_mass_storage usb_f_mass_storage g_ether usb_f_rndis brcmfmac brcmutil usb_f_ecm u_ether libcomposite configfs [13744.609498] CPU: 0 PID: 6 Comm: kworker/u2:0 Tainted: G W 6.1.35-00014-g7e67972bd0c9-dirty #4 [13744.619549] Hardware name: Freescale MXS (Device Tree) [13744.624779] Workqueue: cfg80211 cfg80211_event_work [13744.629855] unwind_backtrace from show_stack+0x10/0x14 [13744.635259] show_stack from dump_stack_lvl+0x38/0x4c [13744.640452] dump_stack_lvl from __warn+0x78/0x134 [13744.645399] __warn from warn_slowpath_fmt+0x74/0xac [13744.650508] warn_slowpath_fmt from __cfg80211_connect_result+0x68c/0x700 [13744.657456] __cfg80211_connect_result from cfg80211_process_wdev_events+0xf8/0x158 [13744.665265] cfg80211_process_wdev_events from cfg80211_process_rdev_events+0x30/0x78 [13744.673221] cfg80211_process_rdev_events from cfg80211_event_work+0x20/0x2c [13744.680420] cfg80211_event_work from process_one_work+0x240/0x5d4 [13744.686738] process_one_work from worker_thread+0x30/0x4b8 [13744.692428] worker_thread from kthread+0xd8/0xfc [13744.697272] kthread from ret_from_fork+0x14/0x3c [13744.702100] Exception stack(0xc482dfb0 to 0xc482dff8) [13744.707245] dfa0: 00000000 00000000 00000000 00000000 [13744.715515] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [13744.723779] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 [13744.730745] irq event stamp: 3809 [13744.734201] hardirqs last enabled at (3817): [<c006a204>] __up_console_sem+0x54/0x64 [13744.742423] hardirqs last disabled at (3826): [<c006a1f0>] __up_console_sem+0x40/0x64 [13744.750647] softirqs last enabled at (3708): [<c07ad5d8>] cfg80211_get_bss+0x254/0x2fc [13744.759064] softirqs last disabled at (3652): [<c07ad3d8>] cfg80211_get_bss+0x54/0x2fc [13744.767370] ---[ end trace 0000000000000000 ]--- [13749.909380] ------------[ cut here ]------------ [13749.914158] WARNING: CPU: 0 PID: 6 at net/wireless/sme.c:1074 __cfg80211_roamed+0x30c/0x334 [13749.923053] Modules linked in: g_mass_storage usb_f_mass_storage g_ether usb_f_rndis brcmfmac brcmutil usb_f_ecm u_ether libcomposite configfs [13749.937044] CPU: 0 PID: 6 Comm: kworker/u2:0 Tainted: G W 6.1.35-00014-g7e67972bd0c9-dirty #4 [13749.947100] Hardware name: Freescale MXS (Device Tree) [13749.952329] Workqueue: cfg80211 cfg80211_event_work [13749.957405] unwind_backtrace from show_stack+0x10/0x14 [13749.962814] show_stack from dump_stack_lvl+0x38/0x4c [13749.968008] dump_stack_lvl from __warn+0x78/0x134 [13749.972955] __warn from warn_slowpath_fmt+0x74/0xac [13749.978066] warn_slowpath_fmt from __cfg80211_roamed+0x30c/0x334 [13749.984322] __cfg80211_roamed from cfg80211_process_wdev_events+0xdc/0x158 [13749.991434] cfg80211_process_wdev_events from cfg80211_process_rdev_events+0x30/0x78 [13749.999391] cfg80211_process_rdev_events from cfg80211_event_work+0x20/0x2c [13750.006587] cfg80211_event_work from process_one_work+0x240/0x5d4 [13750.012905] process_one_work from worker_thread+0x30/0x4b8 [13750.018594] worker_thread from kthread+0xd8/0xfc [13750.023436] kthread from ret_from_fork+0x14/0x3c [13750.028266] Exception stack(0xc482dfb0 to 0xc482dff8) [13750.033413] dfa0: 00000000 00000000 00000000 00000000 [13750.041683] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [13750.049945] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 [13750.057104] irq event stamp: 4009 [13750.060569] hardirqs last enabled at (4017): [<c006a204>] __up_console_sem+0x54/0x64 [13750.068800] hardirqs last disabled at (4026): [<c006a1f0>] __up_console_sem+0x40/0x64 [13750.076816] softirqs last enabled at (4008): [<c00097a4>] __do_softirq+0x234/0x3fc [13750.084922] softirqs last disabled at (4039): [<c001ff10>] __irq_exit_rcu+0x15c/0x1bc [13750.093152] ---[ end trace 0000000000000000 ]--- Here is a more recent one: [ 541.616072] ------------[ cut here ]------------ [ 541.621734] WARNING: CPU: 0 PID: 6 at net/wireless/sme.c:839 __cfg80211_connect_result+0x68c/0x700 [ 541.631243] Modules linked in: brcmfmac brcmutil usb_f_acm u_serial usb_f_ecm g_cdc u_ether libcomposite configfs [ 541.642384] CPU: 0 PID: 6 Comm: kworker/u2:0 Not tainted 6.1.35-00016-gb85d2f107135-dirty #10 [ 541.651044] Hardware name: Freescale MXS (Device Tree) [ 541.656273] Workqueue: cfg80211 cfg80211_event_work [ 541.661350] unwind_backtrace from show_stack+0x10/0x14 [ 541.666750] show_stack from dump_stack_lvl+0x38/0x4c [ 541.671947] dump_stack_lvl from __warn+0x78/0x134 [ 541.676890] __warn from warn_slowpath_fmt+0x74/0xac [ 541.682003] warn_slowpath_fmt from __cfg80211_connect_result+0x68c/0x700 [ 541.688951] __cfg80211_connect_result from cfg80211_process_wdev_events+0xf8/0x158 [ 541.696761] cfg80211_process_wdev_events from cfg80211_process_rdev_events+0x30/0x78 [ 541.704719] cfg80211_process_rdev_events from cfg80211_event_work+0x20/0x2c [ 541.711921] cfg80211_event_work from process_one_work+0x240/0x5d4 [ 541.718239] process_one_work from worker_thread+0x30/0x4b8 [ 541.723926] worker_thread from kthread+0xd8/0xfc [ 541.728770] kthread from ret_from_fork+0x14/0x3c [ 541.733599] Exception stack(0xc482dfb0 to 0xc482dff8) [ 541.738749] dfa0: 00000000 00000000 00000000 00000000 [ 541.747022] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 541.755286] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 541.762240] irq event stamp: 1189 [ 541.765696] hardirqs last enabled at (1197): [<c006a204>] __up_console_sem+0x54/0x64 [ 541.773921] hardirqs last disabled at (1206): [<c006a1f0>] __up_console_sem+0x40/0x64 [ 541.782152] softirqs last enabled at (1094): [<c07ad5d0>] cfg80211_get_bss+0x254/0x2fc [ 541.790350] softirqs last disabled at (1056): [<c07ad3d0>] cfg80211_get_bss+0x54/0x2fc [ 541.798648] ---[ end trace 0000000000000000 ]--- [ 546.440876] ------------[ cut here ]------------ [ 546.446097] WARNING: CPU: 0 PID: 6 at net/wireless/sme.c:1074 __cfg80211_roamed+0x30c/0x334 [ 546.455112] Modules linked in: brcmfmac brcmutil usb_f_acm u_serial usb_f_ecm g_cdc u_ether libcomposite configfs [ 546.466245] CPU: 0 PID: 6 Comm: kworker/u2:0 Tainted: G W 6.1.35-00016-gb85d2f107135-dirty #10 [ 546.476382] Hardware name: Freescale MXS (Device Tree) [ 546.481610] Workqueue: cfg80211 cfg80211_event_work [ 546.486687] unwind_backtrace from show_stack+0x10/0x14 [ 546.492092] show_stack from dump_stack_lvl+0x38/0x4c [ 546.497284] dump_stack_lvl from __warn+0x78/0x134 [ 546.502224] __warn from warn_slowpath_fmt+0x74/0xac [ 546.507336] warn_slowpath_fmt from __cfg80211_roamed+0x30c/0x334 [ 546.513587] __cfg80211_roamed from cfg80211_process_wdev_events+0xdc/0x158 [ 546.520700] cfg80211_process_wdev_events from cfg80211_process_rdev_events+0x30/0x78 [ 546.528657] cfg80211_process_rdev_events from cfg80211_event_work+0x20/0x2c [ 546.535855] cfg80211_event_work from process_one_work+0x240/0x5d4 [ 546.542166] process_one_work from worker_thread+0x30/0x4b8 [ 546.547856] worker_thread from kthread+0xd8/0xfc [ 546.552700] kthread from ret_from_fork+0x14/0x3c [ 546.557530] Exception stack(0xc482dfb0 to 0xc482dff8) [ 546.562676] dfa0: 00000000 00000000 00000000 00000000 [ 546.570941] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 546.579206] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 546.586273] irq event stamp: 1397 [ 546.589731] hardirqs last enabled at (1405): [<c006a204>] __up_console_sem+0x54/0x64 [ 546.597954] hardirqs last disabled at (1414): [<c006a1f0>] __up_console_sem+0x40/0x64 [ 546.606252] softirqs last enabled at (1434): [<c00097a4>] __do_softirq+0x234/0x3fc [ 546.614314] softirqs last disabled at (1423): [<c001ff10>] __irq_exit_rcu+0x15c/0x1bc [ 546.622628] ---[ end trace 0000000000000000 ]---
