Hello Get this on first write made ( by deliver sending mail to inform of the restart of services ) Home partition (the one receiving the mail) is based on ocfs2 created from drbd block device in primary/primary mode These drbd devices are based on lvm. system is running linux-3.5.0, identical symptom with linux 3.3 and 3.2 but working with linux 3.0 kernel reproduced on two machines ( so different hardware involved on this one software md raid on SATA, on second one areca hardware raid card ) but the 2 machines are the one sharing this partition ( so share the same data ) Jul 27 23:41:41 jupiter2 postfix/qmgr[4400]: D12661C487: from=<root@xxxxxxxxxxxx>, size=388, nrcpt=1 (queue active) Jul 27 23:41:41 jupiter2 postfix/qmgr[4400]: D0AEE1C01F: from=<root@xxxxxxxxxxxx>, size=401, nrcpt=1 (queue active) Jul 27 23:41:41 jupiter2 postfix/qmgr[4400]: DD5D91BFE9: from=<root@xxxxxxxxxxxx>, size=393, nrcpt=1 (queue active) Jul 27 23:41:41 jupiter2 postfix/qmgr[4400]: A705B1BFDC: from=<root@xxxxxxxxxxxx>, size=395, nrcpt=1 (queue active) Jul 27 23:41:41 jupiter2 postfix/qmgr[4400]: B6AB41C48C: from=<root@xxxxxxxxxxxx>, size=388, nrcpt=1 (queue active) Jul 27 23:41:41 jupiter2 postfix/qmgr[4400]: 8DAE11C48F: from=<root@xxxxxxxxxxxx>, size=382, nrcpt=1 (queue active) Jul 27 23:41:41 jupiter2 postfix/qmgr[4400]: 715241C489: from=<root@xxxxxxxxxxxx>, size=380, nrcpt=1 (queue active) Jul 27 23:41:41 jupiter2 postfix/qmgr[4400]: F18601C024: from=<root@xxxxxxxxxxxx>, size=401, nrcpt=1 (queue active) Jul 27 23:41:41 jupiter2 kernel: [ 351.169213] ------------[ cut here ]------------ Jul 27 23:41:41 jupiter2 kernel: [ 351.169261] kernel BUG at fs/buffer.c:2886! Jul 27 23:41:41 jupiter2 kernel: [ 351.169303] invalid opcode: 0000 [#1] SMP Jul 27 23:41:41 jupiter2 kernel: [ 351.169409] CPU 1 Jul 27 23:41:41 jupiter2 kernel: [ 351.169446] Modules linked in: drbd lru_cache Jul 27 23:41:41 jupiter2 kernel: [ 351.169620] Jul 27 23:41:41 jupiter2 kernel: [ 351.169655] Pid: 5783, comm: deliver Not tainted 3.5.0-gentoo #2 HP ProLiant ML150 G3/ML150 G3 Jul 27 23:41:41 jupiter2 kernel: [ 351.169803] RIP: 0010:[<ffffffff81180862>] [<ffffffff81180862>] submit_bh+0x112/0x120 Jul 27 23:41:41 jupiter2 kernel: [ 351.169889] RSP: 0018:ffff8800574c7b38 EFLAGS: 00010246 Jul 27 23:41:41 jupiter2 kernel: [ 351.169932] RAX: 4000000001000004 RBX: ffffea0001791ac0 RCX: 00000003ffffffff Jul 27 23:41:41 jupiter2 kernel: [ 351.169978] RDX: 0000000000000001 RSI: ffffea0001791ac0 RDI: 0000000000000000 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff81346ad0 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] R10: dead000000200200 R11: 0000000000000000 R12: 0000000004cc4789 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] R13: 00000003ffffffff R14: 0000000000000000 R15: 0000000000000000 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] FS: 00007ff70e943700(0000) GS:ffff88007fd00000(0000) knlGS:0000000000000000 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] CR2: 00007fb4968f6b6c CR3: 000000005fe8a000 CR4: 00000000000007e0 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] Process deliver (pid: 5783, threadinfo ffff8800574c6000, task ffff88007b8fad00) Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] Stack: Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] ffffea0001791ac0 0000000000000001 0000000004cc4789 ffffffff81327546 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] 000000005893c5b8 ffffffff8114e541 ffff88007b8fb368 ffff8800574c7c10 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] 0000000000000000 0000000100000000 ffff8800589236f0 ffff88005bac4000 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] Call Trace: Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff81327546>] ? ocfs2_read_blocks+0x176/0x6c0 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff8114e541>] ? T.1552+0x91/0x2b0 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff81346ad0>] ? ocfs2_find_actor+0x120/0x120 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff813464f7>] ? ocfs2_read_inode_block_full+0x37/0x60 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff813964ff>] ? ocfs2_fast_symlink_readpage+0x2f/0x160 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff81111585>] ? do_read_cache_page+0x85/0x180 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff813964d0>] ? ocfs2_fill_super+0x2500/0x2500 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff811116d9>] ? read_cache_page+0x9/0x20 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff8115c705>] ? page_getlink+0x25/0x80 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff8115c77b>] ? page_follow_link_light+0x1b/0x30 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff8116099b>] ? path_lookupat+0x38b/0x720 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff81160d5c>] ? do_path_lookup+0x2c/0xd0 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff81346f31>] ? ocfs2_inode_revalidate+0x71/0x160 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff81161c0c>] ? user_path_at_empty+0x5c/0xb0 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff8106714a>] ? do_page_fault+0x1aa/0x3c0 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff81156f2d>] ? cp_new_stat+0x10d/0x120 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff81157021>] ? vfs_fstatat+0x41/0x80 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff8115715f>] ? sys_newstat+0x1f/0x50 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] [<ffffffff817ecee2>] ? system_call_fastpath+0x16/0x1b Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] Code: b6 44 24 18 4c 89 e7 83 e0 80 3c 01 19 db e8 76 3f 00 00 f7 d3 83 e3 a1 89 d8 5b 5d 41 5c c3 0f 0b eb fe 0f 0b eb fe 0f 0$ Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] RIP [<ffffffff81180862>] submit_bh+0x112/0x120 Jul 27 23:41:41 jupiter2 kernel: [ 351.170003] RSP <ffff8800574c7b38> Jul 27 23:41:41 jupiter2 kernel: [ 351.177405] ---[ end trace e1e88bdf12146104 ]--- Jul 27 23:41:41 jupiter2 kernel: [ 351.177868] deliver (5783) used greatest stack depth: 3032 bytes left Regards, Vincent ETIENNE -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html