the dlm lock migration(A->B) may lead to lvb difference.
1. A node migrage dlm lock, while flags=4(DLM_LKSB_GET_LVB)
2. B node update lock lvb, just when flags=2(DLM_LKSB_PUT_LVB), So this will
be a lvb update problem.
in the dlm_process_recovery_data, DLM_LKSB_GET_LVB instead of DLM_LKSB_PUT_LVB.
if (!dlm_lvb_is_empty(mres->lvb)) {
-if (lksb->flags & DLM_LKSB_PUT_LVB) {
+if (lksb->flags & DLM_LKSB_GET_LVB) {
the patch ensures that the other valid locks have the same a LVB by updating to
solute the problem of BUGs in the migrage dlm lock
Finally, any feedback about this process (positive or negative) would be
greatly appreciated.
A Node:
May 25 14:37:29 cvk12 kernel: [ 1166.838861] AAAAA: dlm_add_lock_to_array, send
ml info: type=3, conv=5, node=12, flags=4, list=1, cookie=12:1063
May 25 14:37:29 cvk12 kernel: [ 1166.838862] mres lvb:
05000000000000dd00000000000000001558b0a8a12d3bec1558b0a6036067131558b0a603606713000000000de0000081800001000000005a7219b300000000
May 25 14:37:29 cvk12 kernel: [ 1166.838887] lock lksb lvb:
05000000000000dd00000000000000001558b0a8a12d3bec1558b0a6036067131558b0a603606713000000000de0000081800001000000005a7219b300000000
________________________________
zhangguanghui 10102
From: guozhonghua 02084 (RD)<mailto:guozhong...@h3c.com>
Date: 2015-05-25 16:22
To: ocfs2-devel@oss.oracle.com<mailto:ocfs2-devel@oss.oracle.com>;
ocfs2-devel-requ...@oss.oracle.com<mailto:ocfs2-devel-requ...@oss.oracle.com>
CC: shichangkuo<mailto:shi.chang...@h3c.com>; zhangguanghui 10102
(RD)<mailto:zhang.guang...@h3c.com>; changlimin 00148<mailto:changli...@h3c.com>
Subject: LVB patch for reviews, thanks
As dlm lock LVB different, the dlm lock migration may be failed without the dlm
lock.
So the new owner will not have the dlm lock with the node, such as cookie
10:2696 as below.
diff -cp dlmrecovery_org.c dlmrecovery.c
*** dlmrecovery_org.c 2015-05-25 09:53:05.530826236 +0800
--- dlmrecovery.c 2015-05-25 10:01:12.242839116 +0800
*************** static void dlm_prepare_lvb_for_migratio
*** 1194,1199 ****
--- 1194,1203 ----
if (!lock->lksb)
return;
+ if (dlm_lvb_is_empty(lock->lksb->lvb)) {
+ return;
+ }
+
/* Ignore lvb in all locks in the blocked list */
if (queue == DLM_BLOCKED_LIST)
return;
May 24 16:45:51 cvk60 kernel: [ 868.542596]
(umount,20349,2):dlm_prepare_lvb_for_migration:1235 ERROR: Mismatched lvb in
lock cookie=10:2696, name=M00000000000000017a012300000000, node=10
May 24 16:45:51 cvk60 kernel: [ 868.542603] lockres:
M00000000000000017a012300000000, owner=8, state=32
May 24 16:45:51 cvk60 kernel: [ 868.542604] last used: 0, refcnt: 12, on
purge list: no
May 24 16:45:51 cvk60 kernel: [ 868.542606] on dirty list: no, on reco list:
no, migrating pending: no
May 24 16:45:51 cvk60 kernel: [ 868.542607] inflight locks: 0, asts
reserved: 0
May 24 16:45:51 cvk60 kernel: [ 868.542608] refmap nodes: [ 1 2 3 5 6 7 9 10
11 12 ], inflight=0
May 24 16:45:51 cvk60 kernel: [ 868.542613] res lvb:
05000000000000450000000000000000155863770a7adf68155863764986bbdc155863764986bbdc0000000004600000818000010000000046c6e83500000000
May 24 16:45:51 cvk60 kernel: [ 868.542636] granted queue:
May 24 16:45:51 cvk60 kernel: [ 868.542638] type=3, conv=-1, node=7,
cookie=7:2863, ref=2, ast=(empty=y,pend=n), bast=(empty=y,pend=n),
pending=(conv=n,lock=n,cancel=n,unlock=n)
May 24 16:45:51 cvk60 kernel: [ 868.542639] lock
lvb:05000000000000450000000000000000155863770a7adf68155863764986bbdc155863764986bbdc0000000004600000818000010000000046c6e83500000000
May 24 16:45:51 cvk60 kernel: [ 868.542664] type=3, conv=-1, node=10,
cookie=10:2696, ref=2, ast=(empty=y,pend=n), bast=(empty=y,pend=n),
pending=(conv=n,lock=n,cancel=n,unlock=n)
May 24 16:45:51 cvk60 kernel: [ 868.542665] lock lvb:
May 24 16:45:51 cvk60 kernel: [ 868.542668] type=3, conv=-1, node=12,
cookie=12:2528, ref=2, ast=(empty=y,pend=n), bast=(empty=y,pend=n),
pending=(conv=n,lock=n,cancel=n,unlock=n)
May 24 16:45:51 cvk60 kernel: [ 868.542669] lock
lvb:05000000000000450000000000000000155863770a7adf68155863764986bbdc155863764986bbdc0000000004600000818000010000000046c6e83500000000
May 24 16:45:51 cvk60 kernel: [ 868.542694] type=3, conv=-1, node=11,
cookie=11:1308, ref=2, ast=(empty=y,pend=n), bast=(empty=y,pend=n),
pending=(conv=n,lock=n,cancel=n,unlock=n)
May 24 16:45:51 cvk60 kernel: [ 868.542695] lock
lvb:05000000000000450000000000000000155863770a7adf68155863764986bbdc155863764986bbdc0000000004600000818000010000000046c6e83500000000
May 24 16:45:51 cvk60 kernel: [ 868.542719] type=3, conv=-1, node=3,
cookie=3:6315, ref=2, ast=(empty=y,pend=n), bast=(empty=y,pend=n),
pending=(conv=n,lock=n,cancel=n,unlock=n)
May 24 16:45:51 cvk60 kernel: [ 868.542720] lock
lvb:05000000000000450000000000000000155863770a7adf68155863764986bbdc155863764986bbdc0000000004600000818000010000000046c6e83500000000
May 24 16:45:51 cvk60 kernel: [ 868.542745] type=3, conv=-1, node=6,
cookie=6:3745, ref=2, ast=(empty=y,pend=n), bast=(empty=y,pend=n),
pending=(conv=n,lock=n,cancel=n,unlock=n)
May 24 16:45:51 cvk60 kernel: [ 868.542746] lock
lvb:05000000000000450000000000000000155863770a7adf68155863764986bbdc155863764986bbdc0000000004600000818000010000000046c6e83500000000
May 24 16:45:51 cvk60 kernel: [ 868.542771] type=3, conv=-1, node=9,
cookie=9:2746, ref=2, ast=(empty=y,pend=n), bast=(empty=y,pend=n),
pending=(conv=n,lock=n,cancel=n,unlock=n)
May 24 16:45:51 cvk60 kernel: [ 868.542772] lock
lvb:05000000000000450000000000000000155863770a7adf68155863764986bbdc155863764986bbdc0000000004600000818000010000000046c6e83500000000
May 24 16:45:51 cvk60 kernel: [ 868.542797] type=3, conv=-1, node=2,
cookie=2:7003, ref=2, ast=(empty=y,pend=n), bast=(empty=y,pend=n),
pending=(conv=n,lock=n,cancel=n,unlock=n)
May 24 16:45:51 cvk60 kernel: [ 868.542798] lock
lvb:05000000000000450000000000000000155863770a7adf68155863764986bbdc155863764986bbdc0000000004600000818000010000000046c6e83500000000
May 24 16:45:51 cvk60 kernel: [ 868.542822] type=3, conv=-1, node=1,
cookie=1:1921, ref=2, ast=(empty=y,pend=n), bast=(empty=y,pend=n),
pending=(conv=n,lock=n,cancel=n,unlock=n)
May 24 16:45:51 cvk60 kernel: [ 868.542823] lock
lvb:05000000000000450000000000000000155863770a7adf68155863764986bbdc155863764986bbdc0000000004600000818000010000000046c6e83500000000
May 24 16:45:51 cvk60 kernel: [ 868.542848] type=3, conv=-1, node=5,
cookie=5:2841, ref=2, ast=(empty=y,pend=n), bast=(empty=y,pend=n),
pending=(conv=n,lock=n,cancel=n,unlock=n)
May 24 16:45:51 cvk60 kernel: [ 868.542849] lock
lvb:05000000000000450000000000000000155863770a7adf68155863764986bbdc155863764986bbdc0000000004600000818000010000000046c6e83500000000
May 24 16:45:51 cvk60 kernel: [ 868.542873] converting queue:
May 24 16:45:51 cvk60 kernel: [ 868.542874] blocked queue:
-------------------------------------------------------------------------------------------------------------------------------------
本邮件及其附件含有杭州华三通信技术有限公司的保密信息，仅限于发送给上面地址中列出
的个人或群组。禁止任何其他人以任何形式使用（包括但不限于全部或部分地泄露、复制、
或散发）本邮件中的信息。如果您错收了本邮件，请您立即电话或邮件通知发件人并删除本
邮件！
This e-mail and its attachments contain confidential information from H3C,
which is
intended only for the person or entity whose address is listed above. Any use
of the
information contained herein in any way (including, but not limited to, total
or partial
disclosure, reproduction, or dissemination) by persons other than the intended
recipient(s) is prohibited. If you receive this e-mail in error, please notify
the sender
by phone or email immediately and delete it!
_______________________________________________
Ocfs2-devel mailing list
Ocfs2-devel@oss.oracle.com
https://oss.oracle.com/mailman/listinfo/ocfs2-devel
