On Tue, Sep 03, 2019 at 08:26:18AM +1000, Dave Chinner wrote:
> On Wed, Aug 28, 2019 at 07:02:31PM -0700, Ira Weiny wrote:
> > On Mon, Aug 26, 2019 at 03:55:10PM +1000, Dave Chinner wrote:
> > > On Fri, Aug 23, 2019 at 10:08:36PM -0700, Ira Weiny wrote:
> > > > On Sat, Aug 24, 2019 at 10:11:24AM
On Wed, Aug 28, 2019 at 07:02:31PM -0700, Ira Weiny wrote:
> On Mon, Aug 26, 2019 at 03:55:10PM +1000, Dave Chinner wrote:
> > On Fri, Aug 23, 2019 at 10:08:36PM -0700, Ira Weiny wrote:
> > > On Sat, Aug 24, 2019 at 10:11:24AM +1000, Dave Chinner wrote:
> > > > On Fri, Aug 23, 2019 at 09:04:29AM
On Wed, Aug 28, 2019 at 08:27:23PM -0700, John Hubbard wrote:
> On 8/28/19 7:02 PM, Ira Weiny wrote:
> > On Mon, Aug 26, 2019 at 03:55:10PM +1000, Dave Chinner wrote:
> > > On Fri, Aug 23, 2019 at 10:08:36PM -0700, Ira Weiny wrote:
> > > > On Sat, Aug 24, 2019 at 10:11:24AM +1000, Dave Chinner
On 8/28/19 7:02 PM, Ira Weiny wrote:
On Mon, Aug 26, 2019 at 03:55:10PM +1000, Dave Chinner wrote:
On Fri, Aug 23, 2019 at 10:08:36PM -0700, Ira Weiny wrote:
On Sat, Aug 24, 2019 at 10:11:24AM +1000, Dave Chinner wrote:
On Fri, Aug 23, 2019 at 09:04:29AM -0300, Jason Gunthorpe wrote:
...
On Mon, Aug 26, 2019 at 03:55:10PM +1000, Dave Chinner wrote:
> On Fri, Aug 23, 2019 at 10:08:36PM -0700, Ira Weiny wrote:
> > On Sat, Aug 24, 2019 at 10:11:24AM +1000, Dave Chinner wrote:
> > > On Fri, Aug 23, 2019 at 09:04:29AM -0300, Jason Gunthorpe wrote:
> > >
> > > > IMHO it is wrong to try
On Fri, Aug 23, 2019 at 10:08:36PM -0700, Ira Weiny wrote:
> On Sat, Aug 24, 2019 at 10:11:24AM +1000, Dave Chinner wrote:
> > On Fri, Aug 23, 2019 at 09:04:29AM -0300, Jason Gunthorpe wrote:
> > > On Fri, Aug 23, 2019 at 01:23:45PM +1000, Dave Chinner wrote:
> > >
> > > > > But the fact that
On Fri, Aug 23, 2019 at 09:49:12PM -0700, Ira Weiny wrote:
> So far, I have not been able to get RDMA to have an issue like Jason suggested
> would happen (or used to happen). So from that perspective it may be ok to
> hang the close.
No, it is not OK to hang the close. You will deadlock on
On Sat, Aug 24, 2019 at 10:11:24AM +1000, Dave Chinner wrote:
> On Fri, Aug 23, 2019 at 09:04:29AM -0300, Jason Gunthorpe wrote:
> > On Fri, Aug 23, 2019 at 01:23:45PM +1000, Dave Chinner wrote:
> >
> > > > But the fact that RDMA, and potentially others, can "pass the
> > > > pins" to other
On Sat, Aug 24, 2019 at 10:11:24AM +1000, Dave Chinner wrote:
> On Fri, Aug 23, 2019 at 09:04:29AM -0300, Jason Gunthorpe wrote:
> > On Fri, Aug 23, 2019 at 01:23:45PM +1000, Dave Chinner wrote:
> >
> > > > But the fact that RDMA, and potentially others, can "pass the
> > > > pins" to other
On Fri, Aug 23, 2019 at 01:23:45PM +1000, Dave Chinner wrote:
> On Wed, Aug 21, 2019 at 01:44:21PM -0700, Ira Weiny wrote:
> > On Wed, Aug 21, 2019 at 04:48:10PM -0300, Jason Gunthorpe wrote:
> > > On Wed, Aug 21, 2019 at 11:57:03AM -0700, Ira Weiny wrote:
> > >
> > > > > Oh, I didn't think we
On Fri, Aug 23, 2019 at 10:15:04AM -0700, Ira Weiny wrote:
> On Fri, Aug 23, 2019 at 10:59:14AM +1000, Dave Chinner wrote:
> > On Wed, Aug 21, 2019 at 11:02:00AM -0700, Ira Weiny wrote:
> > > On Tue, Aug 20, 2019 at 08:55:15AM -0300, Jason Gunthorpe wrote:
> > > > On Tue, Aug 20, 2019 at
On Fri, Aug 23, 2019 at 09:04:29AM -0300, Jason Gunthorpe wrote:
> On Fri, Aug 23, 2019 at 01:23:45PM +1000, Dave Chinner wrote:
>
> > > But the fact that RDMA, and potentially others, can "pass the
> > > pins" to other processes is something I spent a lot of time trying to
> > > work out.
> >
On Fri, Aug 23, 2019 at 10:59:14AM +1000, Dave Chinner wrote:
> On Wed, Aug 21, 2019 at 11:02:00AM -0700, Ira Weiny wrote:
> > On Tue, Aug 20, 2019 at 08:55:15AM -0300, Jason Gunthorpe wrote:
> > > On Tue, Aug 20, 2019 at 11:12:10AM +1000, Dave Chinner wrote:
> > > > On Mon, Aug 19, 2019 at
On Fri, Aug 23, 2019 at 01:23:45PM +1000, Dave Chinner wrote:
> > But the fact that RDMA, and potentially others, can "pass the
> > pins" to other processes is something I spent a lot of time trying to work
> > out.
>
> There's nothing in file layout lease architecture that says you
> can't
On Wed, Aug 21, 2019 at 01:44:21PM -0700, Ira Weiny wrote:
> On Wed, Aug 21, 2019 at 04:48:10PM -0300, Jason Gunthorpe wrote:
> > On Wed, Aug 21, 2019 at 11:57:03AM -0700, Ira Weiny wrote:
> >
> > > > Oh, I didn't think we were talking about that. Hanging the close of
> > > > the datafile fd
On Wed, Aug 21, 2019 at 11:02:00AM -0700, Ira Weiny wrote:
> On Tue, Aug 20, 2019 at 08:55:15AM -0300, Jason Gunthorpe wrote:
> > On Tue, Aug 20, 2019 at 11:12:10AM +1000, Dave Chinner wrote:
> > > On Mon, Aug 19, 2019 at 09:38:41AM -0300, Jason Gunthorpe wrote:
> > > > On Mon, Aug 19, 2019 at
On Wed, Aug 21, 2019 at 01:44:21PM -0700, Ira Weiny wrote:
> > The order FD's are closed during sigkill is not deterministic, so when
> > all the fputs happen during a kill'd exit we could end up blocking in
> > close(fd) as close(uverbs) will come after in the close
> > list. close(uverbs) is
On Wed, Aug 21, 2019 at 04:48:10PM -0300, Jason Gunthorpe wrote:
> On Wed, Aug 21, 2019 at 11:57:03AM -0700, Ira Weiny wrote:
>
> > > Oh, I didn't think we were talking about that. Hanging the close of
> > > the datafile fd contingent on some other FD's closure is a recipe for
> > > deadlock..
>
On Wed, Aug 21, 2019 at 11:57:03AM -0700, Ira Weiny wrote:
> > Oh, I didn't think we were talking about that. Hanging the close of
> > the datafile fd contingent on some other FD's closure is a recipe for
> > deadlock..
>
> The discussion between Jan and Dave was concerning what happens when a
On Wed, Aug 21, 2019 at 11:43:30AM -0700, John Hubbard wrote:
> On 8/19/19 8:36 PM, Dave Chinner wrote:
> > On Mon, Aug 19, 2019 at 08:09:33PM -0700, John Hubbard wrote:
> > > On 8/19/19 6:20 PM, Dave Chinner wrote:
> > > > On Mon, Aug 19, 2019 at 05:05:53PM -0700, John Hubbard wrote:
> > > > > On
On Wed, Aug 21, 2019 at 11:57:03AM -0700, 'Ira Weiny' wrote:
> On Wed, Aug 21, 2019 at 03:13:43PM -0300, Jason Gunthorpe wrote:
> > On Wed, Aug 21, 2019 at 11:02:00AM -0700, Ira Weiny wrote:
> > > On Tue, Aug 20, 2019 at 08:55:15AM -0300, Jason Gunthorpe wrote:
> > > > On Tue, Aug 20, 2019 at
On Wed, Aug 21, 2019 at 03:13:43PM -0300, Jason Gunthorpe wrote:
> On Wed, Aug 21, 2019 at 11:02:00AM -0700, Ira Weiny wrote:
> > On Tue, Aug 20, 2019 at 08:55:15AM -0300, Jason Gunthorpe wrote:
> > > On Tue, Aug 20, 2019 at 11:12:10AM +1000, Dave Chinner wrote:
> > > > On Mon, Aug 19, 2019 at
On 8/19/19 8:36 PM, Dave Chinner wrote:
On Mon, Aug 19, 2019 at 08:09:33PM -0700, John Hubbard wrote:
On 8/19/19 6:20 PM, Dave Chinner wrote:
On Mon, Aug 19, 2019 at 05:05:53PM -0700, John Hubbard wrote:
On 8/19/19 2:24 AM, Dave Chinner wrote:
On Mon, Aug 19, 2019 at 08:34:12AM +0200, Jan
On 8/21/19 11:13 AM, Jason Gunthorpe wrote:
On Wed, Aug 21, 2019 at 11:02:00AM -0700, Ira Weiny wrote:
On Tue, Aug 20, 2019 at 08:55:15AM -0300, Jason Gunthorpe wrote:
On Tue, Aug 20, 2019 at 11:12:10AM +1000, Dave Chinner wrote:
On Mon, Aug 19, 2019 at 09:38:41AM -0300, Jason Gunthorpe
On Wed, Aug 21, 2019 at 11:02:00AM -0700, Ira Weiny wrote:
> On Tue, Aug 20, 2019 at 08:55:15AM -0300, Jason Gunthorpe wrote:
> > On Tue, Aug 20, 2019 at 11:12:10AM +1000, Dave Chinner wrote:
> > > On Mon, Aug 19, 2019 at 09:38:41AM -0300, Jason Gunthorpe wrote:
> > > > On Mon, Aug 19, 2019 at
On Tue, Aug 20, 2019 at 08:55:15AM -0300, Jason Gunthorpe wrote:
> On Tue, Aug 20, 2019 at 11:12:10AM +1000, Dave Chinner wrote:
> > On Mon, Aug 19, 2019 at 09:38:41AM -0300, Jason Gunthorpe wrote:
> > > On Mon, Aug 19, 2019 at 07:24:09PM +1000, Dave Chinner wrote:
> > >
> > > > So that leaves
On Tue, Aug 20, 2019 at 11:12:10AM +1000, Dave Chinner wrote:
> On Mon, Aug 19, 2019 at 09:38:41AM -0300, Jason Gunthorpe wrote:
> > On Mon, Aug 19, 2019 at 07:24:09PM +1000, Dave Chinner wrote:
> >
> > > So that leaves just the normal close() syscall exit case, where the
> > > application has
On Mon, Aug 19, 2019 at 08:09:33PM -0700, John Hubbard wrote:
> On 8/19/19 6:20 PM, Dave Chinner wrote:
> > On Mon, Aug 19, 2019 at 05:05:53PM -0700, John Hubbard wrote:
> > > On 8/19/19 2:24 AM, Dave Chinner wrote:
> > > > On Mon, Aug 19, 2019 at 08:34:12AM +0200, Jan Kara wrote:
> > > > > On Sat
On 8/19/19 6:20 PM, Dave Chinner wrote:
On Mon, Aug 19, 2019 at 05:05:53PM -0700, John Hubbard wrote:
On 8/19/19 2:24 AM, Dave Chinner wrote:
On Mon, Aug 19, 2019 at 08:34:12AM +0200, Jan Kara wrote:
On Sat 17-08-19 12:26:03, Dave Chinner wrote:
On Fri, Aug 16, 2019 at 12:05:28PM -0700, Ira
On Mon, Aug 19, 2019 at 05:05:53PM -0700, John Hubbard wrote:
> On 8/19/19 2:24 AM, Dave Chinner wrote:
> > On Mon, Aug 19, 2019 at 08:34:12AM +0200, Jan Kara wrote:
> > > On Sat 17-08-19 12:26:03, Dave Chinner wrote:
> > > > On Fri, Aug 16, 2019 at 12:05:28PM -0700, Ira Weiny wrote:
> > > > > On
On Mon, Aug 19, 2019 at 09:38:41AM -0300, Jason Gunthorpe wrote:
> On Mon, Aug 19, 2019 at 07:24:09PM +1000, Dave Chinner wrote:
>
> > So that leaves just the normal close() syscall exit case, where the
> > application has full control of the order in which resources are
> > released. We've
On 8/19/19 2:24 AM, Dave Chinner wrote:
On Mon, Aug 19, 2019 at 08:34:12AM +0200, Jan Kara wrote:
On Sat 17-08-19 12:26:03, Dave Chinner wrote:
On Fri, Aug 16, 2019 at 12:05:28PM -0700, Ira Weiny wrote:
On Thu, Aug 15, 2019 at 03:05:58PM +0200, Jan Kara wrote:
On Wed 14-08-19 11:08:49, Ira
On Mon, Aug 19, 2019 at 09:38:41AM -0300, Jason Gunthorpe wrote:
> On Mon, Aug 19, 2019 at 07:24:09PM +1000, Dave Chinner wrote:
>
> > So that leaves just the normal close() syscall exit case, where the
> > application has full control of the order in which resources are
> > released. We've
On Mon, Aug 19, 2019 at 07:24:09PM +1000, Dave Chinner wrote:
> So that leaves just the normal close() syscall exit case, where the
> application has full control of the order in which resources are
> released. We've already established that we can block in this
> context. Blocking in an
On Mon, Aug 19, 2019 at 08:34:12AM +0200, Jan Kara wrote:
> On Sat 17-08-19 12:26:03, Dave Chinner wrote:
> > On Fri, Aug 16, 2019 at 12:05:28PM -0700, Ira Weiny wrote:
> > > On Thu, Aug 15, 2019 at 03:05:58PM +0200, Jan Kara wrote:
> > > > On Wed 14-08-19 11:08:49, Ira Weiny wrote:
> > > > > On
On Fri 16-08-19 16:20:07, Ira Weiny wrote:
> On Fri, Aug 16, 2019 at 12:05:28PM -0700, 'Ira Weiny' wrote:
> > On Thu, Aug 15, 2019 at 03:05:58PM +0200, Jan Kara wrote:
> > > On Wed 14-08-19 11:08:49, Ira Weiny wrote:
> > > > On Wed, Aug 14, 2019 at 12:17:14PM +0200, Jan Kara wrote:
> > > > >
On Sat 17-08-19 12:26:03, Dave Chinner wrote:
> On Fri, Aug 16, 2019 at 12:05:28PM -0700, Ira Weiny wrote:
> > On Thu, Aug 15, 2019 at 03:05:58PM +0200, Jan Kara wrote:
> > > On Wed 14-08-19 11:08:49, Ira Weiny wrote:
> > > > On Wed, Aug 14, 2019 at 12:17:14PM +0200, Jan Kara wrote:
> > 2) Second
On Fri, Aug 16, 2019 at 12:05:28PM -0700, Ira Weiny wrote:
> On Thu, Aug 15, 2019 at 03:05:58PM +0200, Jan Kara wrote:
> > On Wed 14-08-19 11:08:49, Ira Weiny wrote:
> > > On Wed, Aug 14, 2019 at 12:17:14PM +0200, Jan Kara wrote:
> 2) Second reason is that I thought I did not have a good way to
On Fri, Aug 16, 2019 at 12:05:28PM -0700, 'Ira Weiny' wrote:
> On Thu, Aug 15, 2019 at 03:05:58PM +0200, Jan Kara wrote:
> > On Wed 14-08-19 11:08:49, Ira Weiny wrote:
> > > On Wed, Aug 14, 2019 at 12:17:14PM +0200, Jan Kara wrote:
> > > > Hello!
> > > >
> > > > On Fri 09-08-19 15:58:14,
On Thu, Aug 15, 2019 at 03:05:58PM +0200, Jan Kara wrote:
> On Wed 14-08-19 11:08:49, Ira Weiny wrote:
> > On Wed, Aug 14, 2019 at 12:17:14PM +0200, Jan Kara wrote:
> > > Hello!
> > >
> > > On Fri 09-08-19 15:58:14, ira.we...@intel.com wrote:
> > > > Pre-requisites
> > > > ==
> > > >
On Wed 14-08-19 11:08:49, Ira Weiny wrote:
> On Wed, Aug 14, 2019 at 12:17:14PM +0200, Jan Kara wrote:
> > Hello!
> >
> > On Fri 09-08-19 15:58:14, ira.we...@intel.com wrote:
> > > Pre-requisites
> > > ==
> > > Based on mmotm tree.
> > >
> > > Based on the feedback from LSFmm, the
On Wed, Aug 14, 2019 at 12:17:14PM +0200, Jan Kara wrote:
> Hello!
>
> On Fri 09-08-19 15:58:14, ira.we...@intel.com wrote:
> > Pre-requisites
> > ==
> > Based on mmotm tree.
> >
> > Based on the feedback from LSFmm, the LWN article, the RFC series since
> > then, and a ton of
Hello!
On Fri 09-08-19 15:58:14, ira.we...@intel.com wrote:
> Pre-requisites
> ==
> Based on mmotm tree.
>
> Based on the feedback from LSFmm, the LWN article, the RFC series since
> then, and a ton of scenarios I've worked in my mind and/or tested...[1]
>
> Solution summary
>
From: Ira Weiny
Pre-requisites
==
Based on mmotm tree.
Based on the feedback from LSFmm, the LWN article, the RFC series since
then, and a ton of scenarios I've worked in my mind and/or tested...[1]
Solution summary
The real issue is that there is no use
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