Lorenzo Bianconi <[email protected]> wrote: > Fix following schedule while atomic in mt76x02_reset_state > since synchronize_rcu is run inside a RCU section > > [44036.944222] mt76x2e 0000:06:00.0: MCU message 31 (seq 3) timed out > [44036.944281] BUG: sleeping function called from invalid context at > kernel/rcu/tree_exp.h:818 > [44036.944284] in_atomic(): 1, irqs_disabled(): 0, pid: 28066, name: > kworker/u4:1 > [44036.944287] INFO: lockdep is turned off. > [44036.944292] CPU: 1 PID: 28066 Comm: kworker/u4:1 Tainted: G W > 5.0.0-rc7-wdn-t1+ #7 > [44036.944294] Hardware name: Dell Inc. Studio XPS 1340/0K183D, BIOS A11 > 09/08/2009 > [44036.944305] Workqueue: phy1 mt76x02_wdt_work [mt76x02_lib] > [44036.944308] Call Trace: > [44036.944317] dump_stack+0x67/0x90 > [44036.944322] ___might_sleep.cold.88+0x9f/0xaf > [44036.944327] rcu_blocking_is_gp+0x13/0x50 > [44036.944330] synchronize_rcu+0x17/0x80 > [44036.944337] mt76_sta_state+0x138/0x1d0 [mt76] > [44036.944349] mt76x02_wdt_work+0x1c9/0x610 [mt76x02_lib] > [44036.944355] process_one_work+0x2a5/0x620 > [44036.944361] worker_thread+0x35/0x3e0 > [44036.944368] kthread+0x11c/0x140 > [44036.944376] ret_from_fork+0x3a/0x50 > [44036.944384] BUG: scheduling while atomic: kworker/u4:1/28066/0x00000002 > [44036.944387] INFO: lockdep is turned off. > [44036.944389] Modules linked in: cmac ctr ccm af_packet snd_hda_codec_hdmi > > Introduce __mt76_sta_remove in order to run sta_remove without holding > dev->mutex. > Move __mt76_sta_remove outside of RCU section in mt76x02_reset_state > > Fixes: e4ebb8b403d1 ("mt76: mt76x2: implement full device restart on watchdog > reset") > Signed-off-by: Lorenzo Bianconi <[email protected]>
Patch applied to wireless-drivers.git, thanks. 13f61dfc5235 mt76: fix schedule while atomic in mt76x02_reset_state -- https://patchwork.kernel.org/patch/10847437/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
