Hello:
This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>:
On Thu, 21 Nov 2024 11:43:35 -0500 you wrote:
> From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
>
> This fixes possible deadlocks like the following caused by
> hci_cmd_sync_dequeue causing the destroy function to run:
>
> INFO: task kworker/u19:0:143 blocked for more than 120 seconds.
> Tainted: G W O 6.8.0-2024-03-19-intel-next-iLS-24ww14 #1
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> task:kworker/u19:0 state:D stack:0 pid:143 tgid:143 ppid:2 flags:0x00004000
> Workqueue: hci0 hci_cmd_sync_work [bluetooth]
> Call Trace:
> <TASK>
> __schedule+0x374/0xaf0
> schedule+0x3c/0xf0
> schedule_preempt_disabled+0x1c/0x30
> __mutex_lock.constprop.0+0x3ef/0x7a0
> __mutex_lock_slowpath+0x13/0x20
> mutex_lock+0x3c/0x50
> mgmt_set_connectable_complete+0xa4/0x150 [bluetooth]
> ? kfree+0x211/0x2a0
> hci_cmd_sync_dequeue+0xae/0x130 [bluetooth]
> ? __pfx_cmd_complete_rsp+0x10/0x10 [bluetooth]
> cmd_complete_rsp+0x26/0x80 [bluetooth]
> mgmt_pending_foreach+0x4d/0x70 [bluetooth]
> __mgmt_power_off+0x8d/0x180 [bluetooth]
> ? _raw_spin_unlock_irq+0x23/0x40
> hci_dev_close_sync+0x445/0x5b0 [bluetooth]
> hci_set_powered_sync+0x149/0x250 [bluetooth]
> set_powered_sync+0x24/0x60 [bluetooth]
> hci_cmd_sync_work+0x90/0x150 [bluetooth]
> process_one_work+0x13e/0x300
> worker_thread+0x2f7/0x420
> ? __pfx_worker_thread+0x10/0x10
> kthread+0x107/0x140
> ? __pfx_kthread+0x10/0x10
> ret_from_fork+0x3d/0x60
> ? __pfx_kthread+0x10/0x10
> ret_from_fork_asm+0x1b/0x30
> </TASK>
>
> [...]
Here is the summary with links:
- [v1] Bluetooth: MGMT: Fix possible deadlocks
https://git.kernel.org/bluetooth/bluetooth-next/c/4ae007fdffc9
You are awesome, thank you!
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