Am 07.09.2015 um 15:43 schrieb Stefan Hajnoczi:
> On Sun, Sep 06, 2015 at 11:24:10AM +0200, Peter Lieven wrote:
>>> Taking a step back, what are the semantics of writing !(val &
>>> BM_CMD_START)? Is the device guaranteed to cancel/complete requests
>>> during the register write?
>> I have to chec
On Sun, Sep 06, 2015 at 11:24:10AM +0200, Peter Lieven wrote:
> > Taking a step back, what are the semantics of writing !(val &
> > BM_CMD_START)? Is the device guaranteed to cancel/complete requests
> > during the register write?
>
> I have to check that. John, do you have an idea?
>
> Stefan,
Am 03.09.2015 um 18:59 schrieb Stefan Hajnoczi:
> On Thu, Aug 20, 2015 at 10:14:08AM +0200, Peter Lieven wrote:
>> the blk_drain_all() that is executed if the guest issues a DMA cancel
>> leads to a stuck main loop if the storage backend (e.g. a NFS share)
>> is unresponsive.
>>
>> This scenario is
On Thu, Aug 20, 2015 at 10:14:08AM +0200, Peter Lieven wrote:
> the blk_drain_all() that is executed if the guest issues a DMA cancel
> leads to a stuck main loop if the storage backend (e.g. a NFS share)
> is unresponsive.
>
> This scenario is a common case for CDROM images mounted from an
> NFS
On 08/20/2015 01:14 AM, Peter Lieven wrote:
> the blk_drain_all() that is executed if the guest issues a DMA cancel
> leads to a stuck main loop if the storage backend (e.g. a NFS share)
> is unresponsive.
>
> This scenario is a common case for CDROM images mounted from an
> NFS share. In this cas
the blk_drain_all() that is executed if the guest issues a DMA cancel
leads to a stuck main loop if the storage backend (e.g. a NFS share)
is unresponsive.
This scenario is a common case for CDROM images mounted from an
NFS share. In this case a broken NFS server can take down the
whole VM even if