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Re: [Qemu-devel] [RFC] ARM/ARM64: KVM: Implement KVM_FLUSH_DCACHE_GPA io
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [RFC] ARM/ARM64: KVM: Implement KVM_FLUSH_DCACHE_GPA ioctl |
Date: |
Thu, 07 May 2015 19:01:36 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 |
On 07/05/2015 18:56, Jérémy Fanguède 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
>
> 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 <d>
> TDT <d>
> next_to_use <d>
> next_to_clean <9>
> buffer_info[next_to_clean]
> time_stamp <ffff9311>
> next_to_watch <a>
> jiffies <ffff956a>
> 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
- [Qemu-devel] [RFC] ARM/ARM64: KVM: Implement KVM_FLUSH_DCACHE_GPA ioctl, Jérémy Fanguède, 2015/05/05
- Re: [Qemu-devel] [RFC] ARM/ARM64: KVM: Implement KVM_FLUSH_DCACHE_GPA ioctl, Christoffer Dall, 2015/05/06
- Re: [Qemu-devel] [RFC] ARM/ARM64: KVM: Implement KVM_FLUSH_DCACHE_GPA ioctl, Jérémy Fanguède, 2015/05/07
- Re: [Qemu-devel] [RFC] ARM/ARM64: KVM: Implement KVM_FLUSH_DCACHE_GPA ioctl, Christoffer Dall, 2015/05/07
- Re: [Qemu-devel] [RFC] ARM/ARM64: KVM: Implement KVM_FLUSH_DCACHE_GPA ioctl, Jérémy Fanguède, 2015/05/07
- Re: [Qemu-devel] [RFC] ARM/ARM64: KVM: Implement KVM_FLUSH_DCACHE_GPA ioctl, Christoffer Dall, 2015/05/07
- Re: [Qemu-devel] [RFC] ARM/ARM64: KVM: Implement KVM_FLUSH_DCACHE_GPA ioctl, Jérémy Fanguède, 2015/05/07
- Re: [Qemu-devel] [RFC] ARM/ARM64: KVM: Implement KVM_FLUSH_DCACHE_GPA ioctl,
Paolo Bonzini <=
- Re: [Qemu-devel] [RFC] ARM/ARM64: KVM: Implement KVM_FLUSH_DCACHE_GPA ioctl, Laszlo Ersek, 2015/05/15
- Re: [Qemu-devel] [RFC] ARM/ARM64: KVM: Implement KVM_FLUSH_DCACHE_GPA ioctl, Christoffer Dall, 2015/05/15
- Re: [Qemu-devel] [RFC] ARM/ARM64: KVM: Implement KVM_FLUSH_DCACHE_GPA ioctl, Paolo Bonzini, 2015/05/15