similar to: RHSA-2013:0223-1 - moderate kernel update

On 05/08/2011 01:06 AM, Romain Beauxis wrote: > Running out of memory is not considered as an error when calling malloc? On linux, the only way to get an error when calling malloc() is to disable memory-overcommiting. On regular linux systems, this is the _only_ way for malloc() to return NULL. If an icecast process reaches that point, it's screwed anyway it won't be able to do

On Sat, Oct 14, 2017 at 01:41:14AM +0900, Tetsuo Handa wrote: > Michael S. Tsirkin wrote: > > On Tue, Oct 10, 2017 at 07:47:37PM +0900, Tetsuo Handa wrote: > > > In leak_balloon(), mutex_lock(&vb->balloon_lock) is called in order to > > > serialize against fill_balloon(). But in fill_balloon(), > > > alloc_page(GFP_HIGHUSER[_MOVABLE] | __GFP_NOMEMALLOC |

On Sat, Oct 14, 2017 at 01:41:14AM +0900, Tetsuo Handa wrote: > Michael S. Tsirkin wrote: > > On Tue, Oct 10, 2017 at 07:47:37PM +0900, Tetsuo Handa wrote: > > > In leak_balloon(), mutex_lock(&vb->balloon_lock) is called in order to > > > serialize against fill_balloon(). But in fill_balloon(), > > > alloc_page(GFP_HIGHUSER[_MOVABLE] | __GFP_NOMEMALLOC |

Tetsuo Handa wrote: > Michael S. Tsirkin wrote: > > > > > > > > The proper fix isn't that hard - just avoid allocations under lock. > > > > > > > > Patch posted, pls take a look. > > > > > > Your patch allocates pages in order to inflate the balloon, but > > > your patch will allow leak_balloon() to deflate the

Tetsuo Handa wrote: > Michael S. Tsirkin wrote: > > > > > > > > The proper fix isn't that hard - just avoid allocations under lock. > > > > > > > > Patch posted, pls take a look. > > > > > > Your patch allocates pages in order to inflate the balloon, but > > > your patch will allow leak_balloon() to deflate the

On Wed, May 22, 2019 at 10:02 AM mark <m.roth at 5-cent.us> wrote: > That seems unlikely. Foe one, I've seen that... but I *always* see entries > in the log about the oom-killer being invoked. For another, this isn't a > compute node, it's *only* a fileserver, serving projects, home > directories, and backups (home-grown b/u, uses rsync), and backups don't >

This patch series intends to summarize the recent contributions made by Michael S. Tsirkin, Tetsuo Handa, Michal Hocko etc. via reporting and discussing the related deadlock issues on the mailinglist. Please check each patch for details. >From a high-level point of view, this patch series achieves: 1) eliminate the deadlock issue fundamentally caused by the inability to run leak_balloon and

This patch series intends to summarize the recent contributions made by Michael S. Tsirkin, Tetsuo Handa, Michal Hocko etc. via reporting and discussing the related deadlock issues on the mailinglist. Please check each patch for details. >From a high-level point of view, this patch series achieves: 1) eliminate the deadlock issue fundamentally caused by the inability to run leak_balloon and

Excessive virtio_balloon inflation can cause invocation of OOM-killer, when Linux is under severe memory pressure. Various mechanisms are responsible for correct virtio_balloon memory management. Nevertheless it is often the case that these control tools does not have enough time to react on fast changing memory load. As a result OS runs out of memory and invokes OOM-killer. The balancing of

Excessive virtio_balloon inflation can cause invocation of OOM-killer, when Linux is under severe memory pressure. Various mechanisms are responsible for correct virtio_balloon memory management. Nevertheless it is often the case that these control tools does not have enough time to react on fast changing memory load. As a result OS runs out of memory and invokes OOM-killer. The balancing of

We recently began seeing server crashes in our cluster related to "pop3-login", which is causing "oom-killer" to be invoked. The server only recovers after a reboot. From dovecot.conf: login_process_per_connection = yes login_processes_count = 16 login_max_processes_count = 256 (Should we try switching processes_per_connection to no?) From dovecot.log: dovecot: Apr 17

Excessive virtio_balloon inflation can cause invocation of OOM-killer, when Linux is under severe memory pressure. Various mechanisms are responsible for correct virtio_balloon memory management. Nevertheless it is often the case that these control tools does not have enough time to react on fast changing memory load. As a result OS runs out of memory and invokes OOM-killer. The balancing of

Excessive virtio_balloon inflation can cause invocation of OOM-killer, when Linux is under severe memory pressure. Various mechanisms are responsible for correct virtio_balloon memory management. Nevertheless it is often the case that these control tools does not have enough time to react on fast changing memory load. As a result OS runs out of memory and invokes OOM-killer. The balancing of

PJ wrote: > This may or may not be CentOS related, but am out of ideas at this point and wanted to bounce this off the list. > > I'm running a CentOS 5.5 server, running the latest kernel > 2.6.18-194.32.1.el5. > > Almost everyday around 3:30 AM the server completely locks up and has to be power cycled before it will come back online. > (this means someone hat to wake up

Under both XEN 3.0.4 (2.6.16.33) and XEN 3.1 (2.6.18), I can make the OOM killer appear in dom0 of my server by doing heavy I/O from within a VM. If I start 5 VMs on the same server, each VM doing constant I/O over its boot disk (read/write a 2GB file), after about 30 minutes the OOM killer appears in dom0 and starts killing processes. This was observed using 256MB in dom0. If I bump the memory in

From: Raushaniya Maksudova <rmaksudova at parallels.com> Excessive virtio_balloon inflation can cause invocation of OOM-killer, when Linux is under severe memory pressure. Various mechanisms are responsible for correct virtio_balloon memory management. Nevertheless it is often the case that these control tools does not have enough time to react on fast changing memory load. As a result OS

From: Raushaniya Maksudova <rmaksudova at parallels.com> Excessive virtio_balloon inflation can cause invocation of OOM-killer, when Linux is under severe memory pressure. Various mechanisms are responsible for correct virtio_balloon memory management. Nevertheless it is often the case that these control tools does not have enough time to react on fast changing memory load. As a result OS

Excessive virtio_balloon inflation can cause invocation of OOM-killer, when Linux is under severe memory pressure. Various mechanisms are responsible for correct virtio_balloon memory management. Nevertheless it is often the case that these control tools does not have enough time to react on fast changing memory load. As a result OS runs out of memory and invokes OOM-killer. The balancing of

Excessive virtio_balloon inflation can cause invocation of OOM-killer, when Linux is under severe memory pressure. Various mechanisms are responsible for correct virtio_balloon memory management. Nevertheless it is often the case that these control tools does not have enough time to react on fast changing memory load. As a result OS runs out of memory and invokes OOM-killer. The balancing of

On Mon, Oct 13, 2014 at 04:02:52PM +1030, Rusty Russell wrote: > "Denis V. Lunev" <den at parallels.com> writes: > > From: Raushaniya Maksudova <rmaksudova at parallels.com> > > > > Excessive virtio_balloon inflation can cause invocation of OOM-killer, > > when Linux is under severe memory pressure. Various mechanisms are > > responsible for