search for: downconvert

...nodes gets blocked: Here is a statistic info on the frequency of each functions got called during the 4 seconds, 1352 lockres_set_flags 728 lockres_or_flags 624 lockres_clear_flags 312 __lockres_clear_pending 213 ocfs2_process_blocked_lock 213 ocfs2_locking_ast 213 ocfs2_downconvert_thread_do_work 213 lockres_set_pending 213 lockres_clear_pending 213 lockres_add_mask_waiter 156 ocfs2_prepare_downconvert 156 ocfs2_blocking_ast 104 ocfs2_unblock_lock 104 ocfs2_schedule_blocked_lock 104 ocfs2_generic_handle_downconvert_action 104 ocfs2_generic_...

fyi -------------- next part -------------- An embedded message was scrubbed... From: David Teigland <teigland at redhat.com> Subject: Re: [PATCH] ocfs2: Do not downconvert if the lock level is already compatible Date: Fri, 29 Jan 2010 16:21:02 -0600 Size: 5349 Url: http://oss.oracle.com/pipermail/ocfs2-devel/attachments/20100129/07ea15ec/attachment.eml

Hello, I've hit a bug in OCFS2 delete code which results in inodes being left on disk without any links to them. The workload triggering this creates directories on one node and deletes them on another node in the cluster. The inode is not deleted because both nodes bail out from ocfs2_delete_inode() with: Skipping delete of 100405 because it is in use on other nodes The scenario which I

Hi List, I want to use DLMFS of OCFS2 to avoid multiple start of virtual machines on OracleVM. I want to use a wrapper around xm that spawns a deamon that keeps a file open in /dlm/DOMAIN. Now I played around a bit and followed the procedure in the document http://oss.oracle.com/projects/ocfs2/src/branches/ocfs2-1.2/dlmfs.txt for DLMFS. Theres one problem. The "O_NONBLOCK" option is

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>...

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

...d to change the locking protocol version, as older versions just ignore this problem. - Ensures only one node runs the scan each timeout period. - Uses our existing orphan recovery code unchanged. - We don't need to keep a PR on the orphan scan lock. It's just extra network traffic and downconvert processing we don't care about. Better to wake up once when our timeout fires than to wake up every time another node goes to make a scan. - I realize that I've updated the scan time at the queue of the scan, not at the completion. It doesn't really make much of a difference wi...

...int ocfs2_data_convert_worker(str inode = ocfs2_lock_res_inode(lockres); mapping = inode->i_mapping; + /* + * We need this before the filemap_fdatawrite() so that it can + * transfer the dirty bit from the PTE to the + * page. Unfortunately this means that even for EX->PR + * downconverts, we'll lose our mappings and have to build + * them up again. + */ + unmap_mapping_range(mapping, 0, 0, 0); + if (filemap_fdatawrite(mapping)) { mlog(ML_ERROR, "Could not sync inode %llu for downconvert!", (unsigned long long)OCFS2_I(inode)->ip_blkno); @@ -2725,7 +2...

Rodger Combs wrote: > I've run into some issues using Opus with source files in channel layouts > other than the default 8. For instance, 2.1 isn't supported, so I have to > either downconvert to 2.0 or upconvert to 5.1 (which usually involves adding > empty channels, which prevents the playback device from upconverting to the > native layout). > To address this, I've put together an initial draft of an I-D I'd like to > run by this list for feedback. > Here's...

...nce_method reset To change to panic, do: # echo panic > /sys/kernel/config/CLUSTER/cacl10/fence_method # cat /sys/kernel/config/cluster/CLUSTER/fence_method panic The bug fixes can be classified under three groupings. The first group involves cluster locking. Specifically in the area of downconverting cluster locks. The links below explain two of the more interesting problems. Our thanks to David Teigland of Red Hat for helping us fix these problems. http://oss.oracle.com/git/?p=ocfs2-1.4.git;a=commit;h=e8ef96c444326e4262fd371729e7beebda1af4d1 http://oss.oracle.com/git/?p=ocfs2-1.4.git;a=comm...

I've run into some issues using Opus with source files in channel layouts other than the default 8. For instance, 2.1 isn't supported, so I have to either downconvert to 2.0 or upconvert to 5.1 (which usually involves adding empty channels, which prevents the playback device from upconverting to the native layout). To address this, I've put together an initial draft of an I-D I'd like to run by this list for feedback. Here's the RFCXML: And the resu...

Resending after implementing review comments.

...dentry lock to ocfs2_wq ocfs2: Fix possible deadlock in ocfs2_write_dquot() Joel Becker (1): configfs: Silence lockdep on mkdir(), rmdir() and configfs_depend_item() Mark Fasheh (1): ocfs2: add quota call to ocfs2_remove_btree_range() Sunil Mushran (1): ocfs2: Wakeup the downconvert thread after a successful cancel convert Tao Ma (1): ocfs2: Access the xattr bucket only before modifying it. -- Mark Fasheh

...at 12:47, Martin Leese <martin.leese at stanfordalumni.org> wrote: > > Rodger Combs wrote: > >> I've run into some issues using Opus with source files in channel layouts >> other than the default 8. For instance, 2.1 isn't supported, so I have to >> either downconvert to 2.0 or upconvert to 5.1 (which usually involves adding >> empty channels, which prevents the playback device from upconverting to the >> native layout). >> To address this, I've put together an initial draft of an I-D I'd like to >> run by this list for feedback....

Hi, here comes the next version of OCFS2 lockdep support. I've dropped patches with fixes from the series since they were already merged. As Joel suggested, I've simplified the main patch a bit so that we don't have ifdefs around lock declarations and there are also a few other minor improvements. Honza

Hi all, I'm trying to understand and quantify network traffic for a 32 node high performance OCFS2 installation. Part of what I'm doing is attempting to size the network hardware requirements. To do this I need some help understanding the kinds and amounts of traffic generated during "normal" use. Once populated, the system will have a very high READ to WRITE op ratio. I

I recently bought a DVD Audio disc and I searched the web and wasn't really able to find much about DVD Audio and Linux. I have a few questions that I was hoping some people on this list might be able to answer. How can I extract the uncompressed DVD Audio (not the DTS Audio portion of the disc, but the 96khz/24bit/5.1 pcm part)?

Resending after implementing review comments.

OS: Fedora Core release 4 (Stentz) KERNEL: Linux rack1.ape 2.6.17-1.2142_FC4smp #1 SMP Tue Jul 11 22:57:02 EDT 2006 i686 i686 i386 GNU/Linux CLUSTER: 11 Linux kernels, mixed environment FC4,FC5,FC6 SAN: FC Infortrend storage, QLogic16 port FC switch, FC adapter LSI FC929X (21224,1):ocfs2_truncate_file:242 ERROR: bug expression: le64_to_cpu(fe->i_size) != i_size_read(inode)

Next two patches are backport of orphan scan timer patches to ocfs2-1.4