similar to: [SUGGESSTION 1/1] OCFS2: runtime tunable network idle timeout

backgroud: ocfs2 dlm uses a hash table to store dlm_lock_resource objects. the often used lookup is performed on the hash table. problem: for usages that there are huge number of inodes(thus huge number of dlm_lock_resource objects) in a ocfs2 volume, the lookup performance becomes a problem. the lookup holds spin_lock which could put all others cpus into the state of aquring the spinlock. if

/an ocfs2 bug: a truncate races with ocfs2_get_block(...,0). 1) 'dd' is doing a truncate, clearing the page cache and reset inode size./ /2) between clearing page cache and resizing inode, a read comes and create a / /new page and insert it to page cache./ /3) the read(from `cat`) set buffer head in the new page as mapped but doesn't increase / /ip_mmu_private in ocfs2_get_block()

Hi I have: SLES 10 SP2 (2.6.16.60-0.21-smp) ocfs2-tools-1.4.0-0.3 ocfs2console-1.4.0-0.3 and I can't change "heartbeat dead threshold" value. Content of /etc/sysconfig/o2cb: # O2CB_ENABLED: 'true' means to load the driver on boot. O2CB_ENABLED=true # O2CB_BOOTCLUSTER: If not empty, the name of a cluster to start. O2CB_BOOTCLUSTER=ocfs2 # O2CB_HEARTBEAT_THRESHOLD:

One more follow on, The combination of kernel.panic=60 and kernel.printk=7 4 1 7 seems to have netted the culrptit: E01-netconsole.log:Jan 18 09:45:10 E01 (10,0):o2hb_write_timeout:137 ERROR: Heartbeat write timeout to device dm-12 after 60000 milliseconds E01-netconsole.log:Jan 18 09:45:10 E01 (10,0):o2hb_stop_all_regions:1517 ERROR: stopping heartbeat on all active regions.

I''ve hit this bug on four of my Solaris 11 servers. Looking for anyone else who has seen it, as well as comments/speculation on cause. This bug is pretty bad. If you are lucky you can import the pool read-only and migrate it elsewhere. I''ve also tried setting zfs:zfs_recover=1,aok=1 with varying results. http://docs.oracle.com/cd/E26502_01/html/E28978/gmkgj.html#scrolltoc

David, So here are the two patches. Remove all patches that you have and apply these. The first one is straight forward. The second one will hopefully fix the livelock issue you have been encountering. People reviewing the patches should note that the second one is slightly different than the one I posted earlier. It removes the BUG_ON in the if condition where we jump to update_holders. The

hi all , i use ubuntu 12.04 with xcp , all config run very well except vlan i use xe network-create and xe vlan-create to build vlan 3000 then startup a vm in this network, xapi0 fakebridge and vif1.0 all looks well, use ovs-vsctl list port i can see xapi0 and vif1.0 have beed taged with 3000 but i can not access the internent~~~ somebody can help me with this? thanks.

While I was updating our ssh-servers, I rewrote my old patch that adds idletimeout (just like in old ssh1) parameter to openssh. Since reapplying the patch for all new versions of openssh is not fun at all, I would like to have it included in the official openssh, if you consider the patch worthy. Unlike ClientAlive, idletimeout works for both protocol versions. It also works together with

in ocfs2_file_aio_write(), log_exit() could don't log the value which is really returned. this patch fixes it. Signed-off-by: Wengang Wang <wen.gang.wang at oracle.com> --- fs/ocfs2/file.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 62442e4..a49fa44 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1918,8

This patch plugs a race between the downconvert thread and an unlock ast message. Specifically, after the downconvert worker has done its task, the dc thread needs to check whether an unlock ast made the downconvert moot. Reported-by: David Teigland <teigland at redhat.com> Signed-off-by: Sunil Mushran <sunil.mushran at oracle.com> Acked-by: Mark Fasheh <mfasheh at sus.com> ---

This patch logs(ERROR) -EIO errors just when they are hitted. Signed-off-by: Wengang Wang <wen.gang.wang at oracle.com> -- diff -up ./linux-2.6.29.y.build/fs/ocfs2/buffer_head_io.c.orig ./linux-2.6.29.y.build/fs/ocfs2/buffer_head_io.c --- ./linux-2.6.29.y.build/fs/ocfs2/buffer_head_io.c.orig 2009-04-17 13:55:52.000000000 +0800 +++ ./linux-2.6.29.y.build/fs/ocfs2/buffer_head_io.c 2009-04-17

> I guess we have to look at the conf files then, first these two: Thank you for the config file snippets. I can confirm mine were almost identical, so I've tweaked them so that they are now exactly the same as yours except for the "--require-membership-of=example\authorization_groupname" line in ntlm_auth. Unfortunately it's still erroring out: (7) mschap: Creating

more messages in the other node of the cluster.../var/log/messages. ======== Jun 1 19:05:59 linux2 kernel: cdrom: open failed. Jun 1 19:05:59 linux2 kernel: cdrom: open failed. Jun 1 19:09:35 linux2 kernel: OCFS2 Node Manager 0.99.10-BETA14 Tue May 31 23:34:42 EDT 2005 (build 82257c19fee200eff2ba31569613b46a) Jun 1 19:09:35 linux2 kernel: OCFS2 DLM 0.99.10-BETA14 Tue May 31 23:34:43 EDT 2005

more messages in the other node of the cluster.../var/log/messages. ======== Jun 1 19:05:59 linux2 kernel: cdrom: open failed. Jun 1 19:05:59 linux2 kernel: cdrom: open failed. Jun 1 19:09:35 linux2 kernel: OCFS2 Node Manager 0.99.10-BETA14 Tue May 31 23:34:42 EDT 2005 (build 82257c19fee200eff2ba31569613b46a) Jun 1 19:09:35 linux2 kernel: OCFS2 DLM 0.99.10-BETA14 Tue May 31 23:34:43 EDT 2005

I people, i install the ocfs in my virtual machine, with centos 5.3 and xen. But when i turn off the machine1, the ocfs start the fencing off the machine2. I read the doc in oracle.com, but could not solve the problem. Someone help? My conf and my package version. cluster.conf node: ip_port = 7777 ip_address = 192.168.1.35 number = 0 name = x1 cluster

Signed-off-by: Wengang Wang <wen.gang.wang at oracle.com> --- fs/ocfs2/aops.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index b730010..a10c989 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -1397,7 +1397,7 @@ static int ocfs2_write_cluster(struct address_space *mapping, if (tmpret) { mlog_errno(tmpret); if

We should check dlm->dlm_state under dlm->spinlock though maybe in this case it doesn't hurt. Signed-off-by: Wengang Wang <wen.gang.wang at oracle.com> --- fs/ocfs2/dlm/dlmdomain.c | 13 ++++++------- 1 files changed, 6 insertions(+), 7 deletions(-) diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index 6b5a492..ab82add 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++

Hi, My laptop runs a local IMAP server so that I'm immune from breaking my mail client, and when playing around with powertop I discovered that Dovecot (in particular imap-login) wakes up every 1000ms and then every 50ms even when no clients are connected. A bit of stracing shows this: gettimeofday({1180875699, 667917}, NULL) = 0 <0.000010> poll([{fd=7,

I've got a fresh RHEL AS 4-U2 installation on a Dell PE2850 server. I downloaded and installed the latest RPMs: ocfs2-2.6.9-22.ELsmp-1.0.7-1.i686.rpm ocfs2-tools-1.0.2-1.i386.rpm ocfs2console-1.0.2-1.i386.rpm I was able to start the console, but when I try to run cluster->configure_nodes, I get the following error message: Could not start cluster stack. This must be resolved before any

fs/ocfs2/dir.c: In function ?ocfs2_extend_dir?: fs/ocfs2/dir.c:2700: warning: ?ret? may be used uninitialized in this function fs/ocfs2/suballoc.c: In function ?ocfs2_get_suballoc_slot_bit?: fs/ocfs2/suballoc.c:2216: warning: comparison is always true due to limited range of data type Signed-off-by: Tao Ma <tao.ma at oracle.com> --- fs/ocfs2/dir.c | 2 +- fs/ocfs2/suballoc.c |