From: kernel test robot <yi1.lai@intel.com>
To: Sungwoo Kim <iam@sung-woo.kim>
Cc: oe-lkp@lists.linux.dev, lkp@intel.com,
Dave Tian <daveti@purdue.edu>,
linux-bluetooth@vger.kernel.org,
Marcel Holtmann <marcel@holtmann.org>,
Luiz Augusto von Dentz <luiz.dentz@gmail.com>,
Chethan T N <chethan.tumkur.narayan@intel.com>,
Srivatsa Ravishankar <ravishankar.srivatsa@intel.com>,
Kiran K <kiran.k@intel.com>, Manish Mandlik <mmandlik@google.com>,
Sungwoo Kim <iam@sung-woo.kim>,
linux-kernel@vger.kernel.org, yi1.lai@intel.com
Subject: Re: [PATCH] Bluetooth: hci_event: Synchronously cancel timers in hci_cmd_complete_evt()
Date: Mon, 17 Aug 2026 16:28:05 +0800 [thread overview]
Message-ID: <202608171032.be018232-lkp@intel.com> (raw)
In-Reply-To: <20260619004222.3764523-2-iam@sung-woo.kim>
Hello,
kernel test robot noticed "BUG:sleeping_function_called_from_invalid_context_at_kernel/workqueue.c" on:
commit: 4e57c39dee9e03022145302358f459ed5a2d4676 ("[PATCH] Bluetooth: hci_event: Synchronously cancel timers in hci_cmd_complete_evt()")
url: https://github.com/intel-lab-lkp/linux/commits/Sungwoo-Kim/Bluetooth-hci_event-Synchronously-cancel-timers-in-hci_cmd_complete_evt/20260807-040337
base: https://git.kernel.org/cgit/linux/kernel/git/bluetooth/bluetooth.git master
patch link: https://lore.kernel.org/all/20260619004222.3764523-2-iam@sung-woo.kim/
patch subject: [PATCH] Bluetooth: hci_event: Synchronously cancel timers in hci_cmd_complete_evt()
in testcase: perf-fuzzer
version: perf-fuzzer-x86_64-3cf46b1-1_20260807
with following parameters:
runtime: 1h
config: x86_64-rhel-9.4-bpf
compiler: gcc-14
test machine: 16 threads Intel(R) Core(TM) i7-13620H (Raptor Lake) with 32G memory
If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <yi1.lai@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202608171032.be018232-lkp@intel.com
kern :err : [ 86.152673] [ T369] BUG: sleeping function called from invalid context at kernel/workqueue.c:4487
kern :err : [ 86.152761] [ T369] in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 369, name: kworker/u65:1
kern :err : [ 86.152792] [ T369] preempt_count: 0, expected: 0
kern :err : [ 86.152812] [ T369] RCU nest depth: 1, expected: 0
kern :warn : [ 86.152831] [ T369] 3 locks held by kworker/u65:1/369:
kern :warn : [ 86.152852] [ T369] #0: ffff888886372940 ((wq_completion)hci0#2){+.+.}-{0:0}, at: process_one_work (workqueue.c:3297)
kern :warn : [ 86.152907] [ T369] #1: ffff88888350fd40 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work (workqueue.c:3298)
kern :warn : [ 86.152956] [ T369] #2: ffffffff8542d780 (rcu_read_lock){....}-{1:3}, at: handle_cmd_cnt_and_timer_sync (linux/rcupdate.h:300 linux/rcupdate.h:840 bluetooth/hci_event.c:3760) bluetooth
kern :warn : [ 86.153170] [ T369] CPU: 12 UID: 0 PID: 369 Comm: kworker/u65:1 Tainted: G S 7.2.0-rc4+ #1 PREEMPT(full)
kern :warn : [ 86.153177] [ T369] Tainted: [S]=CPU_OUT_OF_SPEC
kern :warn : [ 86.153179] [ T369] Hardware name: LENOVO 90XW004HPL/336B, BIOS M5LKT1CA 01/06/2025
kern :warn : [ 86.153181] [ T369] Workqueue: hci0 hci_rx_work [bluetooth]
kern :warn : [ 86.153342] [ T369] Call Trace:
kern :warn : [ 86.153344] [ T369] <TASK>
kern :warn : [ 86.153347] [ T369] dump_stack_lvl (dump_stack.c:94 dump_stack.c:120)
kern :warn : [ 86.153356] [ T369] __might_resched.cold (sched/core.c:9197)
kern :warn : [ 86.153365] [ T369] cancel_delayed_work_sync (workqueue.c:4487 workqueue.c:4568)
kern :warn : [ 86.153371] [ T369] handle_cmd_cnt_and_timer_sync (bluetooth/hci_event.c:3763) bluetooth
kern :warn : [ 86.153537] [ T369] hci_cmd_complete_evt (bluetooth/hci_event.c:4295) bluetooth
kern :warn : [ 86.153704] [ T369] ? __skb_clone (core/skbuff.c:1634)
kern :warn : [ 86.153713] [ T369] hci_event_packet (bluetooth/hci_event.c:7781 bluetooth/hci_event.c:7835) bluetooth
kern :warn : [ 86.153881] [ T369] ? __pfx_hci_cmd_complete_evt (bluetooth/hci_event.c:4421 (discriminator 4)) bluetooth
kern :warn : [ 86.154048] [ T369] ? __pfx_hci_event_packet (net/bluetooth/hci_core.h:1688 (discriminator 2)) bluetooth
kern :warn : [ 86.154217] [ T369] ? __call_rcu_common+0x535/0x570
kern :warn : [ 86.154225] [ T369] ? preempt_count_sub (sched/core.c:6000 (discriminator 2) sched/core.c:5997 (discriminator 2) sched/core.c:6019 (discriminator 2))
kern :warn : [ 86.154237] [ T369] hci_rx_work (bluetooth/hci_core.c:4039) bluetooth
kern :warn : [ 86.154402] [ T369] process_one_work (workqueue.c:3322)
kern :warn : [ 86.154417] [ T369] ? __pfx_process_one_work (workqueue.c:1978 (discriminator 7))
kern :warn : [ 86.154423] [ T369] ? __list_add_valid_or_report (list_debug.c:32)
kern :warn : [ 86.154435] [ T369] ? __pfx_hci_rx_work (linux/skbuff.h:1323) bluetooth
kern :warn : [ 86.154595] [ T369] worker_thread (workqueue.c:3405 workqueue.c:3486)
kern :warn : [ 86.154605] [ T369] ? __kthread_parkme (kthread.c:285 (discriminator 1))
kern :warn : [ 86.154611] [ T369] ? __pfx_worker_thread (workqueue.c:3380)
kern :warn : [ 86.154616] [ T369] kthread (kthread.c:436)
kern :warn : [ 86.154621] [ T369] ? kthread (kthread.c:412 (discriminator 1))
kern :warn : [ 86.154625] [ T369] ? __pfx_kthread (kthread.c:378)
kern :warn : [ 86.154632] [ T369] ret_from_fork (x86/kernel/process.c:158)
kern :warn : [ 86.154638] [ T369] ? __pfx_ret_from_fork (x86/include/asm/entry-common.h:54)
kern :warn : [ 86.154646] [ T369] ? __switch_to (linux/thread_info.h:142 (discriminator 2) x86/kernel/process.h:17 (discriminator 2) x86/kernel/process_64.c:676 (discriminator 2))
kern :warn : [ 86.154651] [ T369] ? __pfx_kthread (kthread.c:378)
kern :warn : [ 86.154657] [ T369] ret_from_fork_asm (x86/entry/entry_64.S:245)
kern :warn : [ 86.154674] [ T369] </TASK>
kern :info : [ 86.156790] [ T172] Bluetooth: hci0: Firmware timestamp 2022.51 buildtype 1 build 56683
kern :info : [ 86.156888] [ T172] Bluetooth: hci0: Firmware SHA1: 0xe2305c5c
kern :info : [ 86.164030] [ T371] xor: automatically using best checksumming function avx
kern :info : [ 86.178626] [ T172] Bluetooth: hci0: DSM reset method type: 0x00
kern :info : [ 86.202655] [ T328] think_lmi: ThinkCenter modified support being used
kern :err : [ 86.311812] [ T312] ACPI BIOS Error (bug): Could not resolve symbol [^^RP28.PXSX.WIST], AE_NOT_FOUND (20260408/psargs-365)
kern :err : [ 86.311950] [ T312] ACPI Error: Aborting method _SB.PC00.CNVW.IFUN due to previous error (AE_NOT_FOUND) (20260408/psparse-543)
kern :err : [ 86.315878] [ T312] ACPI Error: Aborting method _SB.PC00.CNVW._DSM due to previous error (AE_NOT_FOUND) (20260408/psparse-543)
kern :info : [ 86.318661] [ T312] iwlwifi 0000:00:14.3: Detected crf-id 0x1300504, cnv-id 0x80400 wfpm id 0x80000030
kern :info : [ 86.318776] [ T312] iwlwifi 0000:00:14.3: PCI dev 51f1/0274, rev=0x370, rfid=0x10a100
kern :info : [ 86.318810] [ T312] iwlwifi 0000:00:14.3: Detected Intel(R) Wi-Fi 6 AX203
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20260817/202608171032.be018232-lkp@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
prev parent reply other threads:[~2026-08-17 8:28 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-19 0:42 [PATCH] Bluetooth: hci_event: Synchronously cancel timers in hci_cmd_complete_evt() Sungwoo Kim
2026-06-19 2:28 ` bluez.test.bot
2026-08-17 8:28 ` kernel test robot [this message]
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