Re: Re: unused swap offset / bad page map.

2013-11-12 Thread Alin Dobre
On 27/08/13 17:30, Dave Jones wrote: Seems to do the trick. We are running many virtualization hosts with Linux 3.11.3, qemu 1.6.1 + kvm and ksm. The hosts have 128GB RAM, 10GB swap and 24x AMD Opteron 6238 cores. Several times few weeks ago, we have seen the OOM killer come to life and

Re: [RFC] Per-user namespace process accounting

2014-06-12 Thread Alin Dobre
On 29/05/14 07:37, Marian Marinov wrote: Hello, I have the following proposition. Number of currently running processes is accounted at the root user namespace. The problem I'm facing is that multiple containers in different user namespaces share the process counters. So if containerX

Re: [PATCH] 9P: fix return value in v9fs_fid_xattr_set

2014-05-21 Thread Alin Dobre
On 21/05/14 09:02, Dominique Martinet wrote: v9fs_fid_xattr_set is supposed to return 0 on success. This corrects the behaviour introduced in commit bdd5c28dcb8330b9074404cc92a0b83aae5606a 9p: fix return value in case in v9fs_fid_xattr_set() (The function returns a negative error on

Re: Deadlock/high load

2014-06-27 Thread Alin Dobre
Hello, When using parity md raid backed up by faster SSD disks, with btrfs on top of it, at intensive I/O, the machine enters a sort of deadlock and the load average starts to grow until a point where the machine is no longer responsive. At the time when the deadlock happens, there are 2

Re: Re: unused swap offset / bad page map.

2013-11-12 Thread Alin Dobre
On 27/08/13 17:30, Dave Jones wrote: Seems to do the trick. We are running many virtualization hosts with Linux 3.11.3, qemu 1.6.1 + kvm and ksm. The hosts have 128GB RAM, 10GB swap and 24x AMD Opteron 6238 cores. Several times few weeks ago, we have seen the OOM killer come to life and

Re: [RFC] Per-user namespace process accounting

2014-06-12 Thread Alin Dobre
On 29/05/14 07:37, Marian Marinov wrote: > Hello, > > I have the following proposition. > > Number of currently running processes is accounted at the root user > namespace. The problem I'm facing is that multiple > containers in different user namespaces share the process counters. > > So if

Re: Deadlock/high load

2014-06-27 Thread Alin Dobre
Hello, When using parity md raid backed up by faster SSD disks, with btrfs on top of it, at intensive I/O, the machine enters a sort of deadlock and the load average starts to grow until a point where the machine is no longer responsive. At the time when the deadlock happens, there are 2

Re: [PATCH] 9P: fix return value in v9fs_fid_xattr_set

2014-05-21 Thread Alin Dobre
On 21/05/14 09:02, Dominique Martinet wrote: > v9fs_fid_xattr_set is supposed to return 0 on success. > > This corrects the behaviour introduced in commit > bdd5c28dcb8330b9074404cc92a0b83aae5606a > "9p: fix return value in case in v9fs_fid_xattr_set()" > > (The function returns a negative error