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From:   Mike Lothian <mike@fireburn.co.uk>
To:     heikki.krogerus@linux.intel.com
Cc:     andriy.shevchenko@linux.intel.com, gregkh@linuxfoundation.org,
        linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-usb@vger.kernel.org, pmalani@chromium.org, rafael@kernel.org,
        sakari.ailus@linux.intel.com
Subject: 'Re: [PATCH v5 4/5] usb: typec: port-mapper: Convert to the component framework'
Date:   Tue, 25 Jan 2022 14:00:33 +0000
Message-Id: <20220125140033.1403-1-mike@fireburn.co.uk>
In-Reply-To: <20211223082422.45637-1-heikki.krogerus@linux.intel.com>
References: <20211223082422.45637-1-heikki.krogerus@linux.intel.com>
MIME-Version: 1.0
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Hi

This patch is stopping my ASUS G513QY from booting correctly

BUG: kernel NULL pointer dereference, address: 0000000000000008
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 1 PID: 116 Comm: kworker/1:1 Not tainted 5.16.0-rc6-tip+ #2991
Hardware name: ASUSTeK COMPUTER INC. ROG Strix G513QY_G513QY/G513QY, BIOS G513QY.316 11/29/2021
Workqueue: events_long ucsi_init_work
RIP: 0010:component_master_add_with_match+0x11/0x190
Code: cc cc 00 00 cc cc 00 00 cc 49 89 c9 49 89 d0 31 d2 31 c9 e9 c1 fe ff ff 00 55 41 57 41 56 41 54 53 48 89 d3 49 89 f4 49 89 ff <48> 8b 72 08 48 89 d7 e8 73 01 00 00 89 c5 85 c0 0f 85 55 01 00 00
RSP: 0018:ffff8881029f7d48 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff83095658 RDI: ffff888117658c08
RBP: 0000000000000000 R08: ffff88810158e258 R09: ffffea00045d9e00
R10: 0000001000000000 R11: ffffffff81be3720 R12: ffffffff83095658
R13: ffff888117630a68 R14: ffff888117658c08 R15: ffff888117658c08
FS:  0000000000000000(0000) GS:ffff888fde440000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000008 CR3: 00000000ac20c000 CR4: 0000000000150ee0
Call Trace:
 <TASK>
 ? typec_link_ports+0x45/0x50
 ? typec_register_port+0x20f/0x260
 ? ucsi_register_port+0x33c/0x700
 ? __kmalloc+0x14e/0x2a0
 ? ucsi_init_work+0x15a/0x330
 ? process_one_work+0x1dd/0x380
 ? worker_thread+0x26d/0x4a0
 ? kthread+0x182/0x1a0
 ? worker_clr_flags+0x40/0x40
 ? kthread_blkcg+0x30/0x30
 ? ret_from_fork+0x22/0x30
 </TASK>
Modules linked in:
CR2: 0000000000000008
---[ end trace 9c7dfbb7c9eaa418 ]---
RIP: 0010:component_master_add_with_match+0x11/0x190
Code: cc cc 00 00 cc cc 00 00 cc 49 89 c9 49 89 d0 31 d2 31 c9 e9 c1 fe ff ff 00 55 41 57 41 56 41 54 53 48 89 d3 49 89 f4 49 89 ff <48> 8b 72 08 48 89 d7 e8 73 01 00 00 89 c5 85 c0 0f 85 55 01 00 00
RSP: 0018:ffff8881029f7d48 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff83095658 RDI: ffff888117658c08
RBP: 0000000000000000 R08: ffff88810158e258 R09: ffffea00045d9e00
R10: 0000001000000000 R11: ffffffff81be3720 R12: ffffffff83095658
R13: ffff888117630a68 R14: ffff888117658c08 R15: ffff888117658c08
FS:  0000000000000000(0000) GS:ffff888fde440000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000008 CR3: 00000000ac20c000 CR4: 0000000000150ee0

Is it due to the USB-C port on the Radeon 6800M?

Thanks

Mike