From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53076) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YqPBe-0007Pq-As for qemu-devel@nongnu.org; Thu, 07 May 2015 13:02:18 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YqPBa-0001qE-Tx for qemu-devel@nongnu.org; Thu, 07 May 2015 13:02:14 -0400 Received: from mx1.redhat.com ([209.132.183.28]:52426) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YqPBa-0001q2-L7 for qemu-devel@nongnu.org; Thu, 07 May 2015 13:02:10 -0400 Message-ID: <554B9A70.6020309@redhat.com> Date: Thu, 07 May 2015 19:01:36 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <1430817191-6231-1-git-send-email-j.fanguede@virtualopensystems.com> <20150506141249.GA6796@cbox> <20150507112027.GC25885@cbox> In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] [RFC] ARM/ARM64: KVM: Implement KVM_FLUSH_DCACHE_GPA ioctl List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: =?UTF-8?B?SsOpcsOpbXkgRmFuZ3XDqGRl?= , Christoffer Dall Cc: QEMU Developers , VirtualOpenSystems Technical Team , "kvmarm@lists.cs.columbia.edu" , "linux-arm-kernel@lists.infradead.org" , Overall On 07/05/2015 18:56, J=C3=A9r=C3=A9my Fangu=C3=A8de wrote: > USB devices fail with a timeout error, as if the communication between > the kernel and the devices fail at a certain point: > usb 1-1: device not accepting address 5, error -110 > usb usb1-port1: unable to enumerate USB device >=20 > e1000 fails when the userspace tries to use it, with these type of > kernel messages: > e1000 0000:00:02.0 eth0: Detected Tx Unit Hang > Tx Queue <0> > TDH > TDT > next_to_use > next_to_clean <9> > buffer_info[next_to_clean] > time_stamp > next_to_watch > jiffies > next_to_watch.status <0> Can you find out what memory attributes the guest is using for the memory---and if it's uncached, why? Paolo