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From: Aditya Garg <gargaditya08@live.com>
To: Hector Martin <marcan@marcan.st>, Sven Peter <sven@svenpeter.dev>,
	Alyssa Rosenzweig <alyssa@rosenzweig.io>,
	"marcel@holtmann.org" <marcel@holtmann.org>,
	"johan.hedberg@gmail.com" <johan.hedberg@gmail.com>,
	"luiz.dentz@gmail.com" <luiz.dentz@gmail.com>
Cc: Orlando Chamberlain <orlandoch.dev@gmail.com>,
	Kerem Karabay <kekrby@gmail.com>,
	Aun-Ali Zaidi <admin@kodeit.net>,
	Asahi Linux <asahi@lists.linux.dev>,
	LKML <linux-kernel@vger.kernel.org>,
	"linux-bluetooth@vger.kernel.org"
	<linux-bluetooth@vger.kernel.org>
Subject: [REGRESSION] Bluetooth is not working on Macs with BCM4377 chip starting from kernel 6.5
Date: Mon, 13 Nov 2023 20:57:35 +0000	[thread overview]
Message-ID: <22582194-DE99-45E5-ABEE-C1C7900DA523@live.com> (raw)

Starting from kernel 6.5, a regression in the kernel is causing Bluetooth to not work on T2 Macs with BCM4377 chip.

Journalctl of kernel 6.4.8 which has Bluetooth working is given here: https://pastebin.com/u9U3kbFJ

Journalctl of kernel 6.5.2, which has Bluetooth broken is given here: https://pastebin.com/aVHNFMRs

Also, the bug hasn’t been fixed even in 6.6.1, as reported by users.

Some relevant bits imo:

    • Sep 19 21:24:36 RudyUbuMbp kernel: hci_bcm4377 0000:73:00.1: can't disable ASPM; OS doesn't have ASPM control

    • Nov 14 01:29:28 RudyUbuMbp kernel: Call Trace:
    • Nov 14 01:29:28 RudyUbuMbp kernel: <TASK>
    • Nov 14 01:29:28 RudyUbuMbp kernel: dump_stack_lvl+0x48/0x70
    • Nov 14 01:29:28 RudyUbuMbp kernel: dump_stack+0x10/0x20
    • Nov 14 01:29:28 RudyUbuMbp kernel: __ubsan_handle_shift_out_of_bounds+0x156/0x310
    • Nov 14 01:29:28 RudyUbuMbp kernel: ? ttwu_do_activate+0x80/0x290
    • Nov 14 01:29:28 RudyUbuMbp kernel: ? raw_spin_rq_unlock+0x10/0x40
    • Nov 14 01:29:28 RudyUbuMbp kernel: ? try_to_wake_up+0x292/0x6c0
    • Nov 14 01:29:28 RudyUbuMbp kernel: ? sched_slice+0x76/0x140
    • Nov 14 01:29:28 RudyUbuMbp kernel: ? reweight_entity+0x15c/0x170
    • Nov 14 01:29:28 RudyUbuMbp kernel: __reg_op.cold+0x14/0x38
    • Nov 14 01:29:28 RudyUbuMbp kernel: bitmap_release_region+0xe/0x20
    • Nov 14 01:29:28 RudyUbuMbp kernel: bcm4377_handle_ack+0x8c/0x130 [hci_bcm4377]
    • Nov 14 01:29:28 RudyUbuMbp kernel: bcm4377_poll_completion_ring+0x196/0x330 [hci_bcm4377]
    • Nov 14 01:29:28 RudyUbuMbp kernel: ? rcu_gp_kthread_wake+0x57/0x90
    • Nov 14 01:29:28 RudyUbuMbp kernel: bcm4377_irq+0x77/0x140 [hci_bcm4377]
    • Nov 14 01:29:28 RudyUbuMbp kernel: __handle_irq_event_percpu+0x4c/0x1b0
    • Nov 14 01:29:28 RudyUbuMbp kernel: handle_irq_event+0x39/0x80
    • Nov 14 01:29:28 RudyUbuMbp kernel: handle_edge_irq+0x8c/0x250
    • Nov 14 01:29:28 RudyUbuMbp kernel: __common_interrupt+0x4f/0x110
    • Nov 14 01:29:28 RudyUbuMbp kernel: common_interrupt+0x45/0xb0
    • Nov 14 01:29:28 RudyUbuMbp kernel: asm_common_interrupt+0x27/0x40
    • Nov 14 01:29:28 RudyUbuMbp kernel: RIP: 0033:0x7f17b5fd8bca

             reply	other threads:[~2023-11-13 20:57 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-13 20:57 Aditya Garg [this message]
2023-11-13 23:31 ` [REGRESSION] Bluetooth is not working on Macs with BCM4377 chip starting from kernel 6.5 Bagas Sanjaya
2023-11-14  6:23   ` Aditya Garg
2023-11-14  6:59     ` Hector Martin
2023-11-14  7:58       ` Hector Martin
2023-11-14  8:18         ` Aditya Garg
2023-11-14  9:03         ` Aditya Garg
2023-11-14  9:44           ` Hector Martin
2023-11-14 10:05             ` Aditya Garg
2023-11-18 19:31             ` Aditya Garg
2023-11-20 11:07               ` Hector Martin
2023-11-21 11:42                 ` Aditya Garg
2023-11-21 12:16                   ` Hector Martin
2023-11-14  8:35 ` Janne Grunau
2023-12-24 18:04 ` Felix Zhang

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