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([2607:fb90:4ae:283a:c67:ea6e:60b6:161f]) by smtp.gmail.com with ESMTPSA id e187sm99596124pfa.130.2019.01.11.11.01.53 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 11 Jan 2019 11:01:53 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (1.0) Subject: Re: MT76x2U crashes XHCI driver on AMD Ryzen system From: Rosen Penev X-Mailer: iPhone Mail (16B92) In-Reply-To: Date: Fri, 11 Jan 2019 11:01:52 -0800 Cc: linux-wireless Content-Transfer-Encoding: quoted-printable Message-Id: <83A1D243-9073-48D1-9F26-5A2581DCB829@gmail.com> References: To: Lorenzo Bianconi Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org On Jan 11, 2019, at 09:29, Lorenzo Bianconi wr= ote: >>=20 >> I have an ALFA AWUS036ACM and whenever I plug it in, the XHCI driver >> dies. This is on an ASRock X370 motherboard. Kernel 4.20 Arch Linux. >>=20 >> After plugging in the adapter, the integrated wireless chip (Intel >> 3168) also dies. Disabling the motherboard wireless does not help. >> Here are two fairly similar logs. First with Intel 3168 and the second >> with it disabled in UEFI. >>=20 >=20 > [...] >=20 >> Without iwlwifi: >>=20 >> kernel: usb 1-14: new high-speed USB device number 3 using xhci_hcd >> kernel: usb 1-14: New USB device found, idVendor=3D0e8d, idProduct=3D7612= , >> bcdDevice=3D 1.00 >> kernel: usb 1-14: New USB device strings: Mfr=3D2, Product=3D3, SerialNum= ber=3D4 >> usb 1-14: Product: Wireless >> kernel: usb 1-14: Manufacturer: MediaTek Inc. >> kernel: usb 1-14: SerialNumber: 000000000 >> mtp-probe[1400]: checking bus 1, device 3: >> "/sys/devices/pci0000:00/0000:00:01.3/0000:03:00.0/usb1/1-14" >> mtp-probe[1400]: bus: 1, device: 3 was not an MTP device >> kernel: usb 1-14: reset high-speed USB device number 3 using xhci_hcd >> kernel: mt76x2u 1-14:1.0: ASIC revision: 76120044 >> kernel: mt76x2u 1-14:1.0: ROM patch build: 20140408060640a >> kernel: xhci_hcd 0000:03:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT >=20 > Are you using the driver in a VM or directly in the host? This is an > error reported by AMD iommu driver Direct. No VM used. This is the only peripheral causing this issue. >=20 > Regards, > Lorenzo