From nobody Sun Feb 8 00:12:24 2026 Received: from mail-pl1-f194.google.com (mail-pl1-f194.google.com [209.85.214.194]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3EF815A780; Tue, 20 Feb 2024 07:24:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.194 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708413867; cv=none; b=EDih0hlGYmJZWgocav8va7Eo9tISs0UW3bzwwzDBNQR6jlbtgS/71m45pqKupMGgl2Qttn6s8yL8V9fsB/rtpwPIwoL1Kqk/yFkwXU4jerxa7X9d3mrO7NyNFXXe8xw+XHBPr19sbeD3lEBagFUOMrIs1zYGBlcEGZ+0TSmE9Mc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708413867; c=relaxed/simple; bh=EeE4AlogZWmof4+1Rdj/5hdch7Ym4f/hZzssGvkV88Y=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version:Content-Type; b=Zo10cRXawXYqxkDJ36Ddz3j5iEXGTVcuGicVNA1q2v+FAt0kJXjM9Y0HNSWxp4nhMqUIc6IoLVeKGHN801veRr27mxsH0GMeq7QEApP78qzo4RHwLAmqudAKu+qyHWfCQSwl013MHg1s2B1qyilEg/PaSCJfAKXLXzwFqvbZw/8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=gnIGnxia; arc=none smtp.client-ip=209.85.214.194 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="gnIGnxia" Received: by mail-pl1-f194.google.com with SMTP id d9443c01a7336-1d7354ba334so46559955ad.1; Mon, 19 Feb 2024 23:24:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1708413865; x=1709018665; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=RwZPEQqi5vRm0n5e0HWhps0mr3zdrb62kOUW5wKsWDs=; b=gnIGnxia1XlDhsMD6rrZoqPNLmX9b2Vi5a+rQXXbqunu3VEZq/ucw3WQr5GLWHj5IY Cc8CgEJ3Cpgfx3qR1N0pA84gFf07QFx6L4Ej20EULVJIQ0yQv04PCOwtLu7ZWxL+Gxym dMn+XhAFqno6y3I/UULr37FIRscoyo9tLXf6pWSMYovpwP3spX0BfUgRfQIAPjp277/3 x3znMU/PVN/QmJ6I3MAwDkzWvKNz3lNDgG4VyI3MgdFUFU59UtFeIcnGh9pGOCpairKX YDDw2oWE3P3k7GjSUlEi6U6wuVUhWokD1jS1uGPTxmrk6nKIWD1NtNnJ6++J1aAYyNIL l1nw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1708413865; x=1709018665; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=RwZPEQqi5vRm0n5e0HWhps0mr3zdrb62kOUW5wKsWDs=; b=iWdz6m+pN9XVZNCXNK9MBHDUEKXbhY/pdRsDsOjgbM66yyv3ZralVUYzUeek1tw1cX wUH5IPKUyEtHLET9dz8zw2wqp2eDkqJH17dFc+awi1WNTyZ3tGcdHBzEMOA3y/K1XzNi fEeIGOfleMFlRgQjeTD1UtvaCoteOaWFAzyg5w8/v25IkRmqpsKwhWoTib+MGYBpVHOn Y5SwgM1QfZA5/zY3i1xwb3xhGAcLDmguphTSa6YN0rQYEEKLko2BZ0wtVxKCHC4EH+4V TrLZ1/67MejyKSq1jnHdwiI9jeh43DC+r3/c45rnNmcaUUY5r7Ce4rw8eEAow0kevLEF kHGQ== X-Forwarded-Encrypted: i=1; AJvYcCVw6f2swiZWReJ4tIfK1KnJFFgaA9KuKUETKZhADcjMCiJpsVFPItntZ5q1wHU8yD6Yj4dzUW3IOqEdx0Leyic9GJnhobusaeTN/j4R X-Gm-Message-State: AOJu0Yzfz6P+zuIYK/rOjEeHBBfQ0ozyzk0M5tcoXq+kalbtx/ew1Pbz sSuTexJZCKZ7NQsf4geo4o8rvs3kuzWYZ+9NUFFOfQkrE4R2S34D X-Google-Smtp-Source: AGHT+IFDZ1Vn5gvkuFy1Y9kEprmwgAErRRmtPW/kCryRk5tmCB/kjftganFKTAr9l4OZRYwMhiRmUw== X-Received: by 2002:a17:903:11cd:b0:1db:82e3:8d7f with SMTP id q13-20020a17090311cd00b001db82e38d7fmr19448176plh.16.1708413864548; Mon, 19 Feb 2024 23:24:24 -0800 (PST) Received: from ubuntu.localdomain ([137.220.142.132]) by smtp.gmail.com with ESMTPSA id h7-20020a170902748700b001d9ef367c85sm5510053pll.104.2024.02.19.23.24.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Feb 2024 23:24:24 -0800 (PST) From: buckzhangwh@gmail.com To: Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, weihui zhang Subject: [PATCH] drivers:usb:disable usb hub&port async suspend to avoid block system PM Date: Mon, 19 Feb 2024 23:24:13 -0800 Message-Id: <20240220072413.4026-1-buckzhangwh@gmail.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable From: weihui zhang many phones are crashed and unable to wake up by power key. We analyzed more than ten kernel-dumps,=20 the common was that system were all blocked by usb. the phone doesn't crash again,after we disable usb hub&port async suspend. here is one kernel-dump analysis case: task 446 & 4511=C2=A0&365 state are Uninterrupt task 446 dpm_wait_for_superior then schedule out. PID:=C2=A0446=C2=A0=C2=A0TASK:=C2=A0ffffff81f3e9cb00 CPU:=C2=A04=C2=A0COMMA= ND:=C2=A0"charge" =C2=A0#0=C2=A0[ffffffc015a0b9a0]=C2=A0__switch_to=C2=A0at=C2=A0ffffffc01008= 8b54 =C2=A0#1=C2=A0[ffffffc015a0b9f0]=C2=A0__schedule=C2=A0at=C2=A0ffffffc010f7e= f2c =C2=A0#2=C2=A0[ffffffc015a0ba40]=C2=A0schedule=C2=A0at=C2=A0ffffffc010f7f3a4 =C2=A0#3=C2=A0[ffffffc015a0baa0]=C2=A0async_synchronize_cookie_domain at=20 =C2=A0#4=C2=A0[ffffffc015a0bb00]=C2=A0async_synchronize_full=C2=A0at=C2=A0f= fffffc010131e0c =C2=A0#5=C2=A0[ffffffc015a0bb10]=C2=A0dpm_resume=C2=A0at=C2=A0ffffffc0107ec= 408 =C2=A0#6=C2=A0[ffffffc015a0bb70]=C2=A0dpm_resume_end=C2=A0at=C2=A0ffffffc01= 07ed0e8 =C2=A0#7=C2=A0[ffffffc015a0bbb0]=C2=A0suspend_devices_and_enter=C2=A0at=C2= =A0ffffffc0101776d8 =C2=A0#8=C2=A0[ffffffc015a0bbf0]=C2=A0enter_state=C2=A0at=C2=A0ffffffc01017= 7e70 =C2=A0#9=C2=A0[ffffffc015a0bc20]=C2=A0pm_suspend=C2=A0at=C2=A0ffffffc010177= d5c PID:=C2=A04511=C2=A0TASK:=C2=A0ffffff8153b0e740=C2=A0CPU:=C2=A06=C2=A0COMMA= ND:=C2=A0"kworker/u16:11" =C2=A0#0=C2=A0[ffffffc01bc9baa0]=C2=A0__switch_to=C2=A0at=C2=A0ffffffc01010= 293c =C2=A0#1=C2=A0[ffffffc01bc9bb10]=C2=A0__schedule=C2=A0at=C2=A0ffffffc0116b0= 008 =C2=A0#2=C2=A0[ffffffc01bc9bb70]=C2=A0schedule=C2=A0at=C2=A0ffffffc0116b0794 =C2=A0#3=C2=A0[ffffffc01bc9bbe0]=C2=A0schedule_timeout=C2=A0at=C2=A0ffffffc= 0116b6c2c =C2=A0#4=C2=A0[ffffffc01bc9bc40]=C2=A0wait_for_common=C2=A0at=C2=A0ffffffc0= 116b198c =C2=A0#5=C2=A0[ffffffc01bc9bca0]=C2=A0dpm_wait_for_superior=C2=A0at=C2=A0ff= ffffc010b999e8=C2=A0=C2=A0 =C2=A0#6=C2=A0[ffffffc01bc9bce0]=C2=A0device_resume=C2=A0at=C2=A0ffffffc010= b9d804=20 //x0(struct device)=3D ffffff81f32a3808 =C2=A0#7=C2=A0[ffffffc01bc9bd10]=C2=A0async_resume=C2=A0at=C2=A0ffffffc010b= 9d6ec =C2=A0#8=C2=A0[ffffffc01bc9bd40]=C2=A0async_run_entry_fn=C2=A0at=C2=A0fffff= fc0101e238c =C2=A0#9=C2=A0[ffffffc01bc9bdb0]=C2=A0process_one_work=C2=A0at=C2=A0ffffffc= 0101d00e0 crash_arm64>=C2=A0struct=C2=A0device=C2=A0ffffff81f32a3808=C2=A0-x struct=C2=A0device=C2=A0{ =C2=A0=C2=A0kobj=C2=A0=3D=C2=A0{ =C2=A0=C2=A0=C2=A0=C2=A0name=C2=A0=3D=C2=A00xffffff81f15c6d80=C2=A0"usb1-po= rt1", =C2=A0=C2=A0=C2=A0=C2=A0entry=C2=A0=3D=C2=A0{ =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0next=C2=A0=3D=C2=A00xffffff81f32a6018, =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0prev=C2=A0=3D=C2=A00xffffff81e4103838 =C2=A0=C2=A0=C2=A0=C2=A0}, =C2=A0type=C2=A0=3D=C2=A00xffffffc0124102b8=C2=A0, =C2=A0=C2=A0bus=C2=A0=3D=C2=A00x0, =C2=A0=C2=A0driver=C2=A0=3D=C2=A00xffffffc0124102e8=C2=A0, =C2=A0 async_suspend=C2=A0=3D=C2=A00x1, ........... PID:=C2=A0365=C2=A0TASK:=C2=A0ffffff81f3bf6900=C2=A0CPU:=C2=A00=C2=A0COMMAN= D:=C2=A0"kworker/u16:5" =C2=A0#0=C2=A0[ffffffc0158dbac0]=C2=A0__switch_to=C2=A0at=C2=A0ffffffc01008= 8b54 =C2=A0#1=C2=A0[ffffffc0158dbb10]=C2=A0__schedule=C2=A0at=C2=A0ffffffc010f7e= f2c =C2=A0#2=C2=A0[ffffffc0158dbb60]=C2=A0schedule=C2=A0at=C2=A0ffffffc010f7f3a4 =C2=A0#3=C2=A0[ffffffc0158dbbe0]=C2=A0schedule_timeout=C2=A0at=C2=A0ffffffc= 010f83fd8 =C2=A0#4=C2=A0[ffffffc0158dbc40]=C2=A0wait_for_common=C2=A0at=C2=A0ffffffc0= 10f80600 =C2=A0#5=C2=A0[ffffffc0158dbc90]=C2=A0wait_for_completion=C2=A0at=C2=A0ffff= ffc010f8051c =C2=A0#6=C2=A0[ffffffc0158dbcb0]=C2=A0dpm_wait_for_superior=C2=A0at=C2=A0ff= ffffc0107eee00 =C2=A0#7=C2=A0[ffffffc0158dbd00]=C2=A0device_resume=C2=A0at=C2=A0ffffffc010= 7ec6a8=20 //x0(struct device) =3D 0xffffff81ee1b3030 =C2=A0#8=C2=A0[ffffffc0158dbd40]=C2=A0async_resume=C2=A0at=C2=A0ffffffc0107= ec588 =C2=A0#9=C2=A0[ffffffc0158dbd60]=C2=A0async_run_entry_fn=C2=A0at=C2=A0fffff= fc010131c60 =C2=A0crash_arm64>=C2=A0struct=C2=A0device=C2=A0ffffff81ee1b3030=C2=A0-x struct=C2=A0device=C2=A0{ =C2=A0=C2=A0kobj=C2=A0=3D=C2=A0{ =C2=A0=C2=A0=C2=A0=C2=A0name=C2=A0=3D=C2=A00xffffff81f1fc1500=C2=A0"1-0:1.0= ", =C2=A0=C2=A0type=C2=A0=3D=C2=A00xffffffc011b62a38=C2=A0, ............ Signed-off-by: weihui zhang --- drivers/usb/core/hub.c | 2 +- drivers/usb/core/message.c | 2 +- drivers/usb/core/port.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index e38a4124f..de74f70e5 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2602,7 +2602,7 @@ int usb_new_device(struct usb_device *udev) add_device_randomness(udev->manufacturer, strlen(udev->manufacturer)); =20 - device_enable_async_suspend(&udev->dev); + device_disable_async_suspend(&udev->dev); =20 /* check whether the hub or firmware marks this port as non-removable */ set_usb_port_removable(udev); diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 077dfe48d..944f01aa7 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -2203,7 +2203,7 @@ int usb_set_configuration(struct usb_device *dev, int= configuration) "adding %s (config #%d, interface %d)\n", dev_name(&intf->dev), configuration, intf->cur_altsetting->desc.bInterfaceNumber); - device_enable_async_suspend(&intf->dev); + device_disable_async_suspend(&intf->dev); ret =3D device_add(&intf->dev); if (ret !=3D 0) { dev_err(&dev->dev, "device_add(%s) --> %d\n", diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c index c628c1abc..97696c415 100644 --- a/drivers/usb/core/port.c +++ b/drivers/usb/core/port.c @@ -760,7 +760,7 @@ int usb_hub_create_port_device(struct usb_hub *hub, int= port1) pm_runtime_set_active(&port_dev->dev); pm_runtime_get_noresume(&port_dev->dev); pm_runtime_enable(&port_dev->dev); - device_enable_async_suspend(&port_dev->dev); + device_disable_async_suspend(&port_dev->dev); =20 /* * Keep hidden the ability to enable port-poweroff if the hub --=20 2.17.1