search for: wait_event_interrupt

virtio balloon has this code: wait_event_interruptible(vb->config_change, (diff = towards_target(vb)) != 0 || vb->need_stats_update || kthread_should_stop() || freezing(current)); Which is a problem because towa...

virtio balloon has this code: wait_event_interruptible(vb->config_change, (diff = towards_target(vb)) != 0 || vb->need_stats_update || kthread_should_stop() || freezing(current)); Which is a problem because towa...

virtio balloon has this code: wait_event_interruptible(vb->config_change, (diff = towards_target(vb)) != 0 || vb->need_stats_update || kthread_should_stop() || freezing(current)); Which is a problem because towa...

virtio balloon has this code: wait_event_interruptible(vb->config_change, (diff = towards_target(vb)) != 0 || vb->need_stats_update || kthread_should_stop() || freezing(current)); Which is a problem because towa...

On Wed, 25 Feb 2015 16:11:27 +0100 Cornelia Huck <cornelia.huck at de.ibm.com> wrote: > On Wed, 25 Feb 2015 15:36:02 +0100 > "Michael S. Tsirkin" <mst at redhat.com> wrote: > > > virtio balloon has this code: > > wait_event_interruptible(vb->config_change, > > (diff = towards_target(vb)) != 0 > > || vb->need_stats_update > > || kthread_should_stop() > > || freezing(cur...

On Wed, 25 Feb 2015 16:11:27 +0100 Cornelia Huck <cornelia.huck at de.ibm.com> wrote: > On Wed, 25 Feb 2015 15:36:02 +0100 > "Michael S. Tsirkin" <mst at redhat.com> wrote: > > > virtio balloon has this code: > > wait_event_interruptible(vb->config_change, > > (diff = towards_target(vb)) != 0 > > || vb->need_stats_update > > || kthread_should_stop() > > || freezing(cur...

...ion at lists.linux-foundation.org, kvm at vger.kernel.org, Cornelia Huck <cornelia.huck at de.ibm.com> Subject: [PATCH v2] virtio-balloon: do not call blocking ops when !TASK_RUNNING Message-ID: <1424874878-17155-1-git-send-email-mst at redhat.com> virtio balloon has this code: wait_event_interruptible(vb->config_change, (diff = towards_target(vb)) != 0 || vb->need_stats_update || kthread_should_stop() || freezing(current)); Which is a problem because towa...

...ion at lists.linux-foundation.org, kvm at vger.kernel.org, Cornelia Huck <cornelia.huck at de.ibm.com> Subject: [PATCH v2] virtio-balloon: do not call blocking ops when !TASK_RUNNING Message-ID: <1424874878-17155-1-git-send-email-mst at redhat.com> virtio balloon has this code: wait_event_interruptible(vb->config_change, (diff = towards_target(vb)) != 0 || vb->need_stats_update || kthread_should_stop() || freezing(current)); Which is a problem because towa...

upstream commit 7e96287ddc4f42081e18248b6167041c0908004c Author: Vivek Goyal <vgoyal@in.ibm.com> [PATCH] kdump: introduce "reset_devices" command line option Resetting the devices during driver initialization can be a costly operation in terms of time (especially scsi devices). This option can be used by drivers to know that user forcibly wants the devices to

On Wed, 25 Feb 2015 15:14:36 +0100 "Michael S. Tsirkin" <mst at redhat.com> wrote: > virtio balloon has this code: > wait_event_interruptible(vb->config_change, > (diff = towards_target(vb)) != 0 > || vb->need_stats_update > || kthread_should_stop() > || freezing(current)); > > W...

On Wed, 25 Feb 2015 15:14:36 +0100 "Michael S. Tsirkin" <mst at redhat.com> wrote: > virtio balloon has this code: > wait_event_interruptible(vb->config_change, > (diff = towards_target(vb)) != 0 > || vb->need_stats_update > || kthread_should_stop() > || freezing(current)); > > W...

I''ve been having a look through scsifront again, and I saw this bit: ring_req->timeout_per_command = (sc->timeout_per_command / HZ); ring_req->nr_segments = 0; spin_unlock_irq(host->host_lock); scsifront_do_request(info); wait_event_interruptible(info->shadow[ring_req->rqid].wq_reset, info->shadow[ring_req->rqid].wait_reset); in scsifront_dev_reset_handler(). Looking at scsifront_do_request(): static void scsifront_do_request(struct vscsifrnt_info *info) { struct vscsiif_front_ring *ring = &(info->ring); unsi...

...0/0xc [ 0.839772] no locks held by vballoon/46. [ 0.839773] Last Breaking-Event-Address: [ 0.839776] [<000000000015bf8a>] __might_sleep+0x8a/0x98 [ 0.839778] ---[ end trace d27fcdfa27273d7c ]--- The problem seems to be this code in balloon() in drivers/virtio/virtio_balloon.c: wait_event_interruptible(vb->config_change, (diff = towards_target(vb)) != 0 || vb->need_stats_update || kthread_should_stop() || freezing(current)); wait_event_interruptible() sets the state of the current task to TASK_INTERRUPTIBLE, then checks the condition. The condition contains towards_...

...0/0xc [ 0.839772] no locks held by vballoon/46. [ 0.839773] Last Breaking-Event-Address: [ 0.839776] [<000000000015bf8a>] __might_sleep+0x8a/0x98 [ 0.839778] ---[ end trace d27fcdfa27273d7c ]--- The problem seems to be this code in balloon() in drivers/virtio/virtio_balloon.c: wait_event_interruptible(vb->config_change, (diff = towards_target(vb)) != 0 || vb->need_stats_update || kthread_should_stop() || freezing(current)); wait_event_interruptible() sets the state of the current task to TASK_INTERRUPTIBLE, then checks the condition. The condition contains towards_...

Break out of wait_event_interruptible() if freezing has been requested, in the vballoon thread. Without this change vballoon refuses to stop and the system can't suspend. Signed-off-by: Marcelo Tosatti <mtosatti at redhat.com> diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 5926826.....

Replace wait_event_interruptible() with wait_event() in o2net_send_message_vec(). This is because this function is called by the dlm that expects signals to be blocked. Fixes oss bugzilla#1126 http://oss.oracle.com/bugzilla/show_bug.cgi?id=1126 Signed-off-by: Sunil Mushran <sunil.mushran at oracle.com> --- fs/ocfs2/cl...

Break out of wait_event_interruptible() if freezing has been requested, in the vballoon thread. Without this change vballoon refuses to stop and the system can't suspend. Signed-off-by: Marcelo Tosatti <mtosatti at redhat.com> diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 5926826.....

On Wed, 25 Feb 2015 15:36:02 +0100 "Michael S. Tsirkin" <mst at redhat.com> wrote: > virtio balloon has this code: > wait_event_interruptible(vb->config_change, > (diff = towards_target(vb)) != 0 > || vb->need_stats_update > || kthread_should_stop() > || freezing(current)); > > W...

On Wed, 25 Feb 2015 15:36:02 +0100 "Michael S. Tsirkin" <mst at redhat.com> wrote: > virtio balloon has this code: > wait_event_interruptible(vb->config_change, > (diff = towards_target(vb)) != 0 > || vb->need_stats_update > || kthread_should_stop() > || freezing(current)); > > W...

On Thu, Feb 26, 2015 at 11:50:42AM +1030, Rusty Russell wrote: > Thomas Huth <thuth at linux.vnet.ibm.com> writes: > > Hi all, > > > > with the recent kernel 3.19, I get a kernel warning when I start my > > KVM guest on s390 with virtio balloon enabled: > > The deeper problem is that virtio_ccw_get_config just silently fails on > OOM. > > Neither