[FS#3877] rtl8812au-ct problems
OpenWrt Bugs
openwrt-bugs at lists.openwrt.org
Mon Jun 14 11:36:15 PDT 2021
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A new Flyspray task has been opened. Details are below.
User who did this - plntyk (plntyk)
Attached to Project - OpenWrt/LEDE Project
Summary - rtl8812au-ct problems
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To -
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - probably all Realtek drivers like rtl8812au-ct
and other variants like
morrownr/gordboy (5.9.3.2)
https://github.com/openwrt/openwrt/pull/4229
https://github.com/openwrt/openwrt/pull/4230
aircrack-ng (5.6.4.2):
https://github.com/openwrt/openwrt/pull/4273
have problems locks during driver bringup - this might result in some
instabilites (hangs) later
rtl8812au-ct prints the following during boot with an attached 8812au card (Netis WF2160):
[ 26.813377] RTL871X: module init start
[ 26.820024] RTL871X: rtl8812au v4.3.14_13455.20150212_BTCOEX20150128-51
[ 26.826663] RTL871X: rtl8812au BT-Coex version = BTCOEX20150128-51
[ 27.145310]
[ 27.151078] ============================================
[ 27.157510] WARNING: possible recursive locking detected
[ 27.157510] 5.10.41 #0 Not tainted
[ 27.170012] --------------------------------------------
[ 27.176524] kmodloader/1490 is trying to acquire lock:
[ 27.182480] ffff88801473a358 (plock){+...}-{2:2}, at: rtw_alloc_macid+0x128/0x355 [rtl8812au]
[ 27.188960]
[ 27.188960] but task is already holding lock:
[ 27.197405] ffffc9000015fce8 (plock){+...}-{2:2}, at: rtw_alloc_stainfo+0x3c/0x23a [rtl8812au]
[ 27.207456]
[ 27.207456] other info that might help us debug this:
[ 27.221130] Possible unsafe locking scenario:
[ 27.221130]
[ 27.234502] CPU0
[ 27.237460] ----
[ 27.237460] lock(plock);
[ 27.247422] lock(plock);
[ 27.257382]
[ 27.257382] *** DEADLOCK ***
[ 27.257382]
[ 27.267430] May be due to missing lock nesting notation
[ 27.267430]
[ 27.287382] 3 locks held by kmodloader/1490:
[ 27.287382] #0: ffff888009161a18 (&dev->mutex){....}-{3:3}, at: __device_driver_lock+0x54/0x60
[ 27.297382] #1: ffff8880091621a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock+0x3e/0x60
[ 27.297382] #2: ffffc9000015fce8 (plock){+...}-{2:2}, at: rtw_alloc_stainfo+0x3c/0x23a [rtl8812au]
[ 27.307412]
[ 27.307412] stack backtrace:
[ 27.317382] CPU: 1 PID: 1490 Comm: kmodloader Not tainted 5.10.41 #0
[ 27.327380] Hardware name: /D945GCLF2, BIOS LF94510J.86A.0150.2009.0210.0006 02/10/2009
[ 27.327380] Call Trace:
[ 27.337409] dump_stack+0x93/0xbd
[ 27.337409] __lock_acquire.cold.60+0x122/0x2cc
[ 27.347381] lock_acquire+0xcf/0x3e0
[ 27.357413] ? rtw_alloc_macid+0x128/0x355 [rtl8812au]
[ 27.357413] ? _rtw_reordering_ctrl_timeout_handler+0xb/0xb [rtl8812au]
[ 27.367382] _raw_spin_lock_bh+0x31/0x40
[ 27.367382] ? rtw_alloc_macid+0x128/0x355 [rtl8812au]
[ 27.377412] rtw_alloc_macid+0x128/0x355 [rtl8812au]
[ 27.377412] ? init_timer_key+0x51/0x100
[ 27.387383] rtw_alloc_stainfo+0x1d2/0x23a [rtl8812au]
[ 27.397410] rtw_init_bcmc_stainfo+0x40/0x5b [rtl8812au]
[ 27.397410] rtw_init_drv_sw+0x13c/0x175 [rtl8812au]
[ 27.407385] rtw_usb_if1_init+0x182/0x21d [rtl8812au]
[ 27.407385] rtw_drv_init+0x41a/0x4c1 [rtl8812au]
[ 27.417412] usb_probe_interface+0x107/0x2b0
[ 27.417412] really_probe+0x10a/0x450
[ 27.427382] driver_probe_device+0x6c/0x160
[ 27.427382] device_driver_attach+0x53/0x60
[ 27.437411] __driver_attach+0x98/0x130
[ 27.447380] ? device_driver_attach+0x60/0x60
[ 27.447380] bus_for_each_dev+0x79/0xc0
[ 27.457412] driver_attach+0x19/0x20
[ 27.457412] bus_add_driver+0x125/0x240
[ 27.467381] driver_register+0x5b/0x100
[ 27.467381] usb_register_driver+0xaf/0x170
[ 27.477468] ? 0xffffffffa089c000
[ 27.477468] rtw_drv_entry+0x81/0x1000 [rtl8812au]
[ 27.487387] do_one_initcall+0x65/0x310
[ 27.497413] ? kmem_cache_alloc_trace+0x7a0/0x9b0
[ 27.497413] do_init_module+0x5b/0x210
[ 27.507383] load_module+0x252b/0x2940
[ 27.507383] ? find_held_lock+0x36/0xb0
[ 27.517411] __do_sys_init_module+0x122/0x190
[ 27.517411] ? __do_sys_init_module+0x122/0x190
[ 27.527384] __x64_sys_init_module+0x15/0x20
[ 27.527384] do_syscall_64+0x37/0x50
[ 27.537410] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 27.537410] RIP: 0033:0x7f863178ffc2
[ 27.547382] Code: eb 0e 4c 8b 44 24 08 4d 8d 48 08 4c 89 4c 24 08 44 8b 0c 24 4d 8b 00 4c 01 c9 41 83 f9 2f 76 05 48 8b 4c 24 08 4c 8b 09 0f 05 89 c7 e8 86 f2 fd ff 48 8b 74 24 18 64 48 33 34 25 28 00 00 00
[ 27.557413] RSP: 002b:00007ffdfbe799f0 EFLAGS: 00000212 ORIG_RAX: 00000000000000af
[ 27.557413] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f863178ffc2
[ 27.567382] RDX: 00000000004042b5 RSI: 00000000002df6a0 RDI: 00007f8631456020
[ 27.567382] RBP: 00000000004060a0 R08: 0000000000000000 R09: 00007f8631757860
[ 27.577381] R10: 0000000000000000 R11: 0000000000000212 R12: 00007f8631456020
[ 27.577381] R13: 0000000000000003 R14: 00000000004042b5 R15: 00000000002df6a0
[ 27.592802] RTL871X: rtw_ndev_init(wlan0)
[ 27.600701] usbcore: registered new interface driver rtl8812au
[ 27.606908] RTL871X: module init ret=0
More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=3877
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