Hello Sorry for my bad lang. but i don`t speak native english. I try find a solution on ocfs2-users but noone can`t help me. I use Linux Gentoo with kernel 3.1.4 and ocfs2-tools-1.6.4 I use 2x IBM server with 2xHBA connected via FC to switch to EMC Storage. When i boot system i see 4 HDD disc because i got 4 links from server to EMC storage so this is normal. I use Multipath to create 1 ?virtual HDD? from this 4 name is /dev/dm-0 I create a filesystem via command: mkfs.ocfs2 -N 2 -L MAIL --fs-feature-level=max-features /dev/dm-0 After this i mount on both servers this fs to /mnt/EMC and start testing. I write a little script to write/read all the time on both servers: MAIL1 ~ # cat terror2.sh #!/bin/bash while true do rm -rf /mnt/EMC/MAIL1 mkdir /mnt/EMC/MAIL1 cp -r /usr /mnt/EMC/MAIL1 rm -rf /mnt/EMC/MAIL1 done; MAIL2 ~ # cat terror2.sh #!/bin/bash while true do rm -rf /mnt/EMC/MAIL2 mkdir /mnt/EMC/MAIL2 cp -r /usr /mnt/EMC/MAIL2 rm -rf /mnt/EMC/MAIL2 done; After 2 hours i receive in dmesg information: Dec 8 17:16:18 MAIL1 klogd: o2dlm: Node 1 joins domain 9FFBEABB12AF4F43A195B6839EF32EB6 Dec 8 17:16:18 MAIL1 klogd: o2dlm: Nodes in domain 9FFBEABB12AF4F43A195B6839EF32EB6: 0 1 17:20 i start test and: Dec 8 19:17:17 MAIL1 klogd: kworker/u:3 D ffff88107f2d2c40 0 8965 2 0x00000000 Dec 8 19:17:17 MAIL1 klogd: ffff881014b2c080 0000000000000046 ffff8810207347d0 0000000000012c40 Dec 8 19:17:17 MAIL1 klogd: ffff8809e4d43fd8 0000000000012c40 0000000000012c40 0000000000012c40 Dec 8 19:17:17 MAIL1 klogd: ffff8809e4d42000 0000000000012c40 ffff8809e4d43fd8 0000000000012c40 Dec 8 19:17:17 MAIL1 klogd: Call Trace: Dec 8 19:17:17 MAIL1 klogd: [<ffffffff8149154d>] ? schedule_timeout+0x1ed/0x2e0 Dec 8 19:17:17 MAIL1 klogd: [<ffffffffa0a84132>] ? dlmconvert_master+0xe2/0x190 [ocfs2_dlm] Dec 8 19:17:17 MAIL1 klogd: [<ffffffffa0a8588f>] ? dlmlock+0x7f/0xb70 [ocfs2_dlm] Dec 8 19:17:17 MAIL1 klogd: [<ffffffff81490e7a>] ? wait_for_common+0x13a/0x190 Dec 8 19:17:17 MAIL1 klogd: [<ffffffff81053f80>] ? try_to_wake_up+0x280/0x280 Dec 8 19:17:17 MAIL1 klogd: [<ffffffffa0953928>] ? __ocfs2_cluster_lock.clone.21+0x1d8/0x6b0 [ocfs2] Dec 8 19:17:17 MAIL1 klogd: [<ffffffff810f5c02>] ? release_pages+0x202/0x230 Dec 8 19:17:17 MAIL1 klogd: [<ffffffffa0953ebc>] ? ocfs2_inode_lock_full_nested+0xbc/0x4a0 [ocfs2] Dec 8 19:17:17 MAIL1 klogd: [<ffffffffa0962bcf>] ? ocfs2_wipe_inode+0x11f/0x6a0 [ocfs2] Dec 8 19:17:17 MAIL1 klogd: [<ffffffffa0960b63>] ? ocfs2_query_inode_wipe.clone.9+0xc3/0x370 [ocfs2] Dec 8 19:17:17 MAIL1 klogd: [<ffffffffa09633c4>] ? ocfs2_delete_inode+0x274/0x3e0 [ocfs2] Dec 8 19:17:17 MAIL1 klogd: [<ffffffff81053f0f>] ? try_to_wake_up+0x20f/0x280 Dec 8 19:17:17 MAIL1 klogd: [<ffffffffa09449b0>] ? ocfs2_dentry_attach_lock+0x5a0/0x5a0 [ocfs2] Dec 8 19:17:17 MAIL1 klogd: [<ffffffffa096354b>] ? ocfs2_evict_inode+0x1b/0x40 [ocfs2] Dec 8 19:17:17 MAIL1 klogd: [<ffffffff8114f47c>] ? evict+0x8c/0x180 Dec 8 19:17:17 MAIL1 klogd: [<ffffffffa09442c2>] ? __ocfs2_drop_dl_inodes.clone.2+0x32/0x60 [ocfs2] Dec 8 19:17:17 MAIL1 klogd: [<ffffffffa09449d9>] ? ocfs2_drop_dl_inodes+0x29/0x90 [ocfs2] Dec 8 19:17:17 MAIL1 klogd: [<ffffffff81076e5f>] ? process_one_work+0x11f/0x440 Dec 8 19:17:17 MAIL1 klogd: [<ffffffff81077b6b>] ? worker_thread+0x15b/0x330 Dec 8 19:17:17 MAIL1 klogd: [<ffffffff81077a10>] ? manage_workers.clone.21+0x120/0x120 Dec 8 19:17:17 MAIL1 klogd: [<ffffffff81077a10>] ? manage_workers.clone.21+0x120/0x120 Dec 8 19:17:17 MAIL1 klogd: [<ffffffff8107c8a6>] ? kthread+0x96/0xa0 Dec 8 19:17:17 MAIL1 klogd: [<ffffffff8149ccb4>] ? kernel_thread_helper+0x4/0x10 Dec 8 19:17:17 MAIL1 klogd: [<ffffffff8107c810>] ? kthread_worker_fn+0x1a0/0x1a0 Dec 8 19:17:17 MAIL1 klogd: [<ffffffff8149ccb0>] ? gs_change+0x13/0x13 Dec 8 19:19:17 MAIL1 klogd: kworker/u:3 D ffff88107f2d2c40 0 8965 2 0x00000000 Dec 8 19:19:17 MAIL1 klogd: ffff881014b2c080 0000000000000046 ffff8810207347d0 0000000000012c40 Dec 8 19:19:17 MAIL1 klogd: ffff8809e4d43fd8 0000000000012c40 0000000000012c40 0000000000012c40 Dec 8 19:19:17 MAIL1 klogd: ffff8809e4d42000 0000000000012c40 ffff8809e4d43fd8 0000000000012c40 Dec 8 19:19:17 MAIL1 klogd: Call Trace: Dec 8 19:19:17 MAIL1 klogd: [<ffffffff8149154d>] ? schedule_timeout+0x1ed/0x2e0 Dec 8 19:19:17 MAIL1 klogd: [<ffffffffa0a84132>] ? dlmconvert_master+0xe2/0x190 [ocfs2_dlm] Dec 8 19:19:17 MAIL1 klogd: [<ffffffffa0a8588f>] ? dlmlock+0x7f/0xb70 [ocfs2_dlm] Dec 8 19:19:17 MAIL1 klogd: [<ffffffff81490e7a>] ? wait_for_common+0x13a/0x190 Dec 8 19:19:17 MAIL1 klogd: [<ffffffff81053f80>] ? try_to_wake_up+0x280/0x280 Dec 8 19:19:17 MAIL1 klogd: [<ffffffffa0953928>] ? __ocfs2_cluster_lock.clone.21+0x1d8/0x6b0 [ocfs2] Dec 8 19:19:17 MAIL1 klogd: [<ffffffff810f5c02>] ? release_pages+0x202/0x230 Dec 8 19:19:17 MAIL1 klogd: [<ffffffffa0953ebc>] ? ocfs2_inode_lock_full_nested+0xbc/0x4a0 [ocfs2] Dec 8 19:19:17 MAIL1 klogd: [<ffffffffa0962bcf>] ? ocfs2_wipe_inode+0x11f/0x6a0 [ocfs2] Dec 8 19:19:17 MAIL1 klogd: [<ffffffffa0960b63>] ? ocfs2_query_inode_wipe.clone.9+0xc3/0x370 [ocfs2] Dec 8 19:19:17 MAIL1 klogd: [<ffffffffa09633c4>] ? ocfs2_delete_inode+0x274/0x3e0 [ocfs2] Dec 8 19:19:17 MAIL1 klogd: [<ffffffff81053f0f>] ? try_to_wake_up+0x20f/0x280 Dec 8 19:19:17 MAIL1 klogd: [<ffffffffa09449b0>] ? ocfs2_dentry_attach_lock+0x5a0/0x5a0 [ocfs2] Dec 8 19:19:17 MAIL1 klogd: [<ffffffffa096354b>] ? ocfs2_evict_inode+0x1b/0x40 [ocfs2] Dec 8 19:19:17 MAIL1 klogd: [<ffffffff8114f47c>] ? evict+0x8c/0x180 Dec 8 19:19:17 MAIL1 klogd: [<ffffffffa09442c2>] ? __ocfs2_drop_dl_inodes.clone.2+0x32/0x60 [ocfs2] Dec 8 19:19:17 MAIL1 klogd: [<ffffffffa09449d9>] ? ocfs2_drop_dl_inodes+0x29/0x90 [ocfs2] Dec 8 19:19:17 MAIL1 klogd: [<ffffffff81076e5f>] ? process_one_work+0x11f/0x440 Dec 8 19:19:17 MAIL1 klogd: [<ffffffff81077b6b>] ? worker_thread+0x15b/0x330 Dec 8 19:19:17 MAIL1 klogd: [<ffffffff81077a10>] ? manage_workers.clone.21+0x120/0x120 Dec 8 19:19:17 MAIL1 klogd: [<ffffffff81077a10>] ? manage_workers.clone.21+0x120/0x120 Dec 8 19:19:17 MAIL1 klogd: [<ffffffff8107c8a6>] ? kthread+0x96/0xa0 Dec 8 19:19:17 MAIL1 klogd: [<ffffffff8149ccb4>] ? kernel_thread_helper+0x4/0x10 Dec 8 19:19:17 MAIL1 klogd: [<ffffffff8107c810>] ? kthread_worker_fn+0x1a0/0x1a0 Dec 8 19:19:17 MAIL1 klogd: [<ffffffff8149ccb0>] ? gs_change+0x13/0x13 I was thinking this is a multipath problem but i do this same on /dev/sdb /dev/sdc /dev/sdd /dev/sde exacly this same effect. I check statistic on FC switch and there is no errors/problem with communication. Please help if possible. Thanks Marek -------------- next part -------------- An HTML attachment was scrubbed... URL: http://oss.oracle.com/pipermail/ocfs2-devel/attachments/20111209/f31b4276/attachment.html