search for: reacquired

...t; On Wed, Jul 13, 2016 at 12:39 AM, Hal Finkel <hfinkel at anl.gov> wrote: > >> Interesting. I'm not sure this is the right metric, however. There are >> lots of analyses that hold pointers to other analyses but don't need to. >> The analysis handle itself can be reacquired lazily if we care to do so. >> > > Are you thinking of instead holding a pointer to the analysis manager? > I'm really concerned with using this approach as the common case. It triggers the run of the analyses at very strange points (mid-query of some other analysis) and forces...

Hello, Does Samba server have a grace period that allows a client to reopen its files and reacquire locks on them before the locks are given to other clients? If there is no grace period, is there a way for the client to avoid the lock ownerships files if the connection goes away for a short period (say few seconds). Thanks and Regards Sudheer

...analyses just for a "recalculate" step seems to be the > exceptional case (only 3/28 or about 10%) Interesting. I'm not sure this is the right metric, however. There are lots of analyses that hold pointers to other analyses but don't need to. The analysis handle itself can be reacquired lazily if we care to do so. What's truly problematic is holding pointers into another analysis's data structures. To be concrete, holding a pointer to ScalarEvolution is not a fundamental problem because we could make the analysis reacquire the pointer at the start of every query. Holding S...

Hi, I've got a box with CentOS 4.2 x86_64 which had no DHCP access for a few hours, now I can't ping it (I'm pretty sure the box is still up). I expect the DHCP lease has timed out and the box has lost it's IP, I was expecting it to reacquire it once the DHCP came back up (configuration problem) - but no luck. Is this a known problem? Any solution/workaround? (for now or for

...list 1. If a lockres is found to be in use, dlm_run_purgelist keeps trying to purge the same lockres instead of trying the next lockres. 2. When a lockres is found unused, dlm_run_purgelist releases lockres spinlock before setting DLM_LOCK_RES_DROPPING_REF and calls dlm_purge_lockres. spinlock is reacquired but in this window lockres can get reused. This leads to BUG. This patch modifies dlm_run_purgelist to skip lockres if it's in use and purge next lockres. It also sets DLM_LOCK_RES_DROPPING_REF before releasing the lockres spinlock protecting it from getting reused. Signed-off-by: Srinivas E...

...ed, Jul 13, 2016 at 12:39 AM, Hal Finkel <hfinkel at anl.gov <mailto:hfinkel at anl.gov>> wrote: > Interesting. I'm not sure this is the right metric, however. There are lots of analyses that hold pointers to other analyses but don't need to. The analysis handle itself can be reacquired lazily if we care to do so. > > Are you thinking of instead holding a pointer to the analysis manager? > > I'm really concerned with using this approach as the common case. It triggers the run of the analyses at very strange points (mid-query of some other analysis) and forces us...

In nouveau_dmem_pages_alloc(), the drm->dmem->mutex is unlocked before calling nouveau_dmem_chunk_alloc(). Reacquire the lock before continuing to the next page. Signed-off-by: Ralph Campbell <rcampbell at nvidia.com> --- I found this while testing Jason Gunthorpe's hmm tree but this is independant of those changes. I guess it could go through David Airlie's tree for nouveau

I see that lots of improvements have happened in cross configure support compared to version 3.8p1 but a couple of problems remain 1) The check that openpty does not reacquire controlling terminal (line 1326 in configure.ac) does not have a default value - I ran the test on my target and checked it was OK but I'm not sure what is the best default for others. 2) The etc_default_login

Hi I have the following configuration at home one ZAPTEL interface connecting to an FXO card and two SIP UAs connecting to asterisk locally. I have configured extensions.conf such that dialing 9 on the SIP phones allows me to dial an outbound number via the FXO interface . Works fine. What's not working is that pressing 9 should causes either GS BT-100 phone to reacquire a dialtone

I've got a CentOS 5 server joined to a Windows 2003 Domain. The Linux machine joined the Windows domain successfully and imported users, created their home directories and migrated their passwords. When looking at the current home directory It lists permissions and ownership properly for a few minutes drwxr-xr-x 2 jdoe domain users 4.0K Jun 14 2007 jdoe drwxr-xr-x 2 jqpublic domain

Gordon Henriksen wrote: > The intrinsics are entirely neutral to collector implementation, and > thus to threading. They could easily be used to implement reference > counting, for instance, which may or may not be implemented in a > threadsafe manner. However, as with your algorithm, reference counting > does not require code generator support, and so would not justify the

The virtio block device holds a lock during I/O request processing. Kicking the virtqueue while the lock is held results in long lock hold times and increases contention for the lock. This patch modifies virtqueue_kick() to optionally release a lock while notifying the host. Virtio block is modified to pass in its lock. This allows other vcpus to queue I/O requests during the time spent

The virtio block device holds a lock during I/O request processing. Kicking the virtqueue while the lock is held results in long lock hold times and increases contention for the lock. This patch modifies virtqueue_kick() to optionally release a lock while notifying the host. Virtio block is modified to pass in its lock. This allows other vcpus to queue I/O requests during the time spent

Hello, I have been looking at the Ruby/EventMachine. First let me say it look very good. Reactor model with no threads makes for fast reliable server, and I have read about marvelous Twisted framework for Python and am glad to see something similar for Ruby. I am writing network app with Ruby threads now and it very slow, and I try new Ruby 1.9 with native threads that make it much slower.

On Thu, Jun 13, 2019 at 05:11:21PM -0700, Ralph Campbell wrote: > In nouveau_dmem_pages_alloc(), the drm->dmem->mutex is unlocked before > calling nouveau_dmem_chunk_alloc(). > Reacquire the lock before continuing to the next page. > > Signed-off-by: Ralph Campbell <rcampbell at nvidia.com> > --- > > I found this while testing Jason Gunthorpe's hmm tree

On 6/13/19 5:11 PM, Ralph Campbell wrote: > In nouveau_dmem_pages_alloc(), the drm->dmem->mutex is unlocked before > calling nouveau_dmem_chunk_alloc(). > Reacquire the lock before continuing to the next page. > > Signed-off-by: Ralph Campbell <rcampbell at nvidia.com> > --- > > I found this while testing Jason Gunthorpe's hmm tree but this is >

Block drivers like nbd and rbd unlock struct request_queue->queue_lock in their request_fn. I'd like to do the same in virtio_blk. After happily posting the patch, Michael Tsirkin pointed out an issue that I can't explain. This may affect existing block drivers that unlock the queue_lock too. What happens when the block device is removed (hot unplug or kernel module unloaded) while

Block drivers like nbd and rbd unlock struct request_queue->queue_lock in their request_fn. I'd like to do the same in virtio_blk. After happily posting the patch, Michael Tsirkin pointed out an issue that I can't explain. This may affect existing block drivers that unlock the queue_lock too. What happens when the block device is removed (hot unplug or kernel module unloaded) while

On Tue, Sep 10, 2019 at 05:12:02PM +0200, Miklos Szeredi wrote: > I've folded the series from Vivek and fixed a couple of TODO comments > myself. AFAICS two issues remain that need to be resolved in the short > term, one way or the other: freeze/restore and full virtqueue. I have researched freeze/restore and come to the conclusion that it needs to be a future feature. It will

Hello all, I'm reposting this to the libvirt-users list: I looked around for documentation on intra-host KVM migration but haven't found much. For example, this could be useful to "migrate" VM to run on an upgraded version of `qemu-kvm` without migrating to a different host and migrating back. We tested migrating a VM to the same host on an old version of libvirt (el7), and