On Thu, Aug 29, 2024 at 11:05:15AM -0400, Michael S. Tsirkin wrote:
> > Personally I still prefer we look into why a separate mutex won't work and
> > why that timed out; that could be part of whoever is going to investigate
> > the whole issue (including the hang later on). Otherwise I'm ok from
>
On Thu, Aug 29, 2024 at 10:29:24AM -0400, Peter Xu wrote:
> On Thu, Aug 29, 2024 at 02:45:45PM +0530, Prasad Pandit wrote:
> > Hello Michael,
> >
> > On Thu, 29 Aug 2024 at 13:12, Michael S. Tsirkin wrote:
> > > Weird. Seems to indicate some kind of deadlock?
> >
> > * Such a deadlock should oc
On Thu, Aug 29, 2024 at 02:45:45PM +0530, Prasad Pandit wrote:
> Hello Michael,
>
> On Thu, 29 Aug 2024 at 13:12, Michael S. Tsirkin wrote:
> > Weird. Seems to indicate some kind of deadlock?
>
> * Such a deadlock should occur across all environments I guess, not
> sure why it happens selective
On Thu, Aug 29, 2024 at 02:45:45PM +0530, Prasad Pandit wrote:
> Hello Michael,
>
> On Thu, 29 Aug 2024 at 13:12, Michael S. Tsirkin wrote:
> > Weird. Seems to indicate some kind of deadlock?
>
> * Such a deadlock should occur across all environments I guess, not
> sure why it happens selective
Hello Michael,
On Thu, 29 Aug 2024 at 13:12, Michael S. Tsirkin wrote:
> Weird. Seems to indicate some kind of deadlock?
* Such a deadlock should occur across all environments I guess, not
sure why it happens selectively. It is strange.
> So maybe vhost_user_postcopy_end should take the BQL?
=
On Wed, Aug 28, 2024 at 03:39:14PM +0530, Prasad Pandit wrote:
> From: Prasad Pandit
>
> QEMU threads use vhost_user_write/read calls to send
> and receive request/reply messages from a vhost-user
> device. When multiple threads communicate with the
> same vhost-user device, they can receive each
On Thu, Aug 29, 2024 at 11:09:44AM +0530, Prasad Pandit wrote:
> On Wed, 28 Aug 2024 at 16:45, Michael S. Tsirkin wrote:
> > > - Place QEMU_LOCK_GUARD near the vhost_user_write() calls, holding
> > >the lock for longer fails some tests during rpmbuild(8).
> >
> > what do you mean fails rpmbui
On Wed, 28 Aug 2024 at 16:45, Michael S. Tsirkin wrote:
> > - Place QEMU_LOCK_GUARD near the vhost_user_write() calls, holding
> >the lock for longer fails some tests during rpmbuild(8).
>
> what do you mean fails rpmbuild? that qemu with this patch can not be
> compiled?
* In V1 of this pa
On Wed, Aug 28, 2024 at 03:39:14PM +0530, Prasad Pandit wrote:
> From: Prasad Pandit
>
> QEMU threads use vhost_user_write/read calls to send
> and receive request/reply messages from a vhost-user
> device. When multiple threads communicate with the
> same vhost-user device, they can receive each
From: Prasad Pandit
QEMU threads use vhost_user_write/read calls to send
and receive request/reply messages from a vhost-user
device. When multiple threads communicate with the
same vhost-user device, they can receive each other's
messages, resulting in an erroneous state.
When fault_thread exit
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