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Junxiao Bi 829ff9b456 ocfs2: fix panic due to unrecovered local alloc 
[ Upstream commit 532e1e54c8140188e192348c790317921cb2dc1c ]

mount.ocfs2 ignore the inconsistent error that journal is clean but
local alloc is unrecovered.  After mount, local alloc not empty, then
reserver cluster didn't alloc a new local alloc window, reserveration
map is empty(ocfs2_reservation_map.m_bitmap_len = 0), that triggered the
following panic.

This issue was reported at

  https://oss.oracle.com/pipermail/ocfs2-devel/2015-May/010854.html

and was advised to fixed during mount.  But this is a very unusual
inconsistent state, usually journal dirty flag should be cleared at the
last stage of umount until every other things go right.  We may need do
further debug to check that.  Any way to avoid possible futher
corruption, mount should be abort and fsck should be run.

  (mount.ocfs2,1765,1):ocfs2_load_local_alloc:353 ERROR: Local alloc hasn't been recovered!
  found = 6518, set = 6518, taken = 8192, off = 15912372
  ocfs2: Mounting device (202,64) on (node 0, slot 3) with ordered data mode.
  o2dlm: Joining domain 89CEAC63CC4F4D03AC185B44E0EE0F3F ( 0 1 2 3 4 5 6 8 ) 8 nodes
  ocfs2: Mounting device (202,80) on (node 0, slot 3) with ordered data mode.
  o2hb: Region 89CEAC63CC4F4D03AC185B44E0EE0F3F (xvdf) is now a quorum device
  o2net: Accepted connection from node yvwsoa17p (num 7) at 172.22.77.88:7777
  o2dlm: Node 7 joins domain 64FE421C8C984E6D96ED12C55FEE2435 ( 0 1 2 3 4 5 6 7 8 ) 9 nodes
  o2dlm: Node 7 joins domain 89CEAC63CC4F4D03AC185B44E0EE0F3F ( 0 1 2 3 4 5 6 7 8 ) 9 nodes
  ------------[ cut here ]------------
  kernel BUG at fs/ocfs2/reservations.c:507!
  invalid opcode: 0000 [#1] SMP
  Modules linked in: ocfs2 rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs fscache lockd grace ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm ocfs2_nodemanager ocfs2_stackglue configfs sunrpc ipt_REJECT nf_reject_ipv4 nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter ip_tables ip6t_REJECT nf_reject_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr ipv6 ovmapi ppdev parport_pc parport xen_netfront fb_sys_fops sysimgblt sysfillrect syscopyarea acpi_cpufreq pcspkr i2c_piix4 i2c_core sg ext4 jbd2 mbcache2 sr_mod cdrom xen_blkfront pata_acpi ata_generic ata_piix floppy dm_mirror dm_region_hash dm_log dm_mod
  CPU: 0 PID: 4349 Comm: startWebLogic.s Not tainted 4.1.12-124.19.2.el6uek.x86_64 #2
  Hardware name: Xen HVM domU, BIOS 4.4.4OVM 09/06/2018
  task: ffff8803fb04e200 ti: ffff8800ea4d8000 task.ti: ffff8800ea4d8000
  RIP: 0010:[<ffffffffa05e96a8>]  [<ffffffffa05e96a8>] __ocfs2_resv_find_window+0x498/0x760 [ocfs2]
  Call Trace:
    ocfs2_resmap_resv_bits+0x10d/0x400 [ocfs2]
    ocfs2_claim_local_alloc_bits+0xd0/0x640 [ocfs2]
    __ocfs2_claim_clusters+0x178/0x360 [ocfs2]
    ocfs2_claim_clusters+0x1f/0x30 [ocfs2]
    ocfs2_convert_inline_data_to_extents+0x634/0xa60 [ocfs2]
    ocfs2_write_begin_nolock+0x1c6/0x1da0 [ocfs2]
    ocfs2_write_begin+0x13e/0x230 [ocfs2]
    generic_perform_write+0xbf/0x1c0
    __generic_file_write_iter+0x19c/0x1d0
    ocfs2_file_write_iter+0x589/0x1360 [ocfs2]
    __vfs_write+0xb8/0x110
    vfs_write+0xa9/0x1b0
    SyS_write+0x46/0xb0
    system_call_fastpath+0x18/0xd7
  Code: ff ff 8b 75 b8 39 75 b0 8b 45 c8 89 45 98 0f 84 e5 fe ff ff 45 8b 74 24 18 41 8b 54 24 1c e9 56 fc ff ff 85 c0 0f 85 48 ff ff ff <0f> 0b 48 8b 05 cf c3 de ff 48 ba 00 00 00 00 00 00 00 10 48 85
  RIP   __ocfs2_resv_find_window+0x498/0x760 [ocfs2]
   RSP <ffff8800ea4db668>
  ---[ end trace 566f07529f2edf3c ]---
  Kernel panic - not syncing: Fatal exception
  Kernel Offset: disabled

Link: http://lkml.kernel.org/r/20181121020023.3034-2-junxiao.bi@oracle.com
Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Reviewed-by: Yiwen Jiang <jiangyiwen@huawei.com>
Acked-by: Joseph Qi <jiangqi903@gmail.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: Mark Fasheh <mfasheh@versity.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Changwei Ge <ge.changwei@h3c.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-01-26 09:42:55 +01:00
..
cluster ocfs2: subsystem.su_mutex is required while accessing the item->ci_parent 2018-07-22 14:25:52 +02:00
dlm ocfs2: fix locking for res->tracking and dlm->tracking_list 2018-10-10 08:52:13 +02:00
dlmfs
acl.c ocfs2/acl: use 'ip_xattr_sem' to protect getting extended attribute 2018-05-30 07:48:55 +02:00
acl.h ocfs2: fix posix_acl_create deadlock 2016-05-18 17:06:44 -07:00
alloc.c ocfs2: fstrim: Fix start offset of first cluster group during fstrim 2017-11-08 10:06:28 +01:00
alloc.h
aops.c fs: add i_blocksize() 2017-06-14 13:16:24 +02:00
aops.h ocfs2: remove OCFS2_IOCB_SEM lock type in direct io 2015-06-24 17:49:39 -07:00
blockcheck.c
blockcheck.h
buffer_head_io.c ocfs2: fix ocfs2 read block panic 2018-09-29 03:08:53 -07:00
buffer_head_io.h
dcache.c
dcache.h
dir.c ocfs2: fix a misuse a of brelse after failing ocfs2_check_dir_entry 2018-11-21 09:27:42 +01:00
dir.h
dlmglue.c ocfs2/dlmglue: prepare tracking logic to avoid recursive cluster lock 2017-10-21 17:09:05 +02:00
dlmglue.h ocfs2/dlmglue: prepare tracking logic to avoid recursive cluster lock 2017-10-21 17:09:05 +02:00
export.c ocfs2: fix potential use after free 2018-12-17 21:55:12 +01:00
export.h
extent_map.c ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
extent_map.h
file.c Revert "ocfs2: should wait dio before inode lock in ocfs2_setattr()" 2017-12-09 18:42:43 +01:00
file.h
heartbeat.c
heartbeat.h
inode.c ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
inode.h ocfs2: only take lock if dio entry when recover orphans 2015-11-05 19:34:48 -08:00
ioctl.c ioctl_compat: handle FITRIM 2015-07-09 11:42:21 -07:00
ioctl.h
journal.c ocfs2: return error when we attempt to access a dirty bh in jbd2 2018-05-30 07:48:55 +02:00
journal.h
Kconfig
localalloc.c ocfs2: fix panic due to unrecovered local alloc 2019-01-26 09:42:55 +01:00
localalloc.h
locks.c ocfs2: fix flock panic issue 2015-12-29 17:45:49 -08:00
locks.h
Makefile
mmap.c
mmap.h
move_extents.c ocfs2: fix deadlock caused by ocfs2_defrag_extent() 2018-12-17 21:55:12 +01:00
move_extents.h
namei.c ocfs2: fix posix_acl_create deadlock 2016-05-18 17:06:44 -07:00
namei.h ocfs2: do not include dio entry in case of orphan scan 2015-11-05 19:34:48 -08:00
ocfs1_fs_compat.h
ocfs2.h ocfs2/dlmglue: prepare tracking logic to avoid recursive cluster lock 2017-10-21 17:09:05 +02:00
ocfs2_fs.h treewide: fix typos in comment blocks 2015-08-07 14:46:24 +02:00
ocfs2_ioctl.h
ocfs2_lockid.h
ocfs2_lockingver.h
ocfs2_trace.h
quota.h
quota_global.c
quota_local.c ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
refcounttree.c ocfs2: fix posix_acl_create deadlock 2016-05-18 17:06:44 -07:00
refcounttree.h
reservations.c
reservations.h
resize.c ocfs2: fix BUG when calculate new backup super 2015-12-29 17:45:49 -08:00
resize.h
slot_map.c
slot_map.h
stack_o2cb.c
stack_user.c char: make misc_deregister a void function 2015-08-05 10:35:49 -07:00
stackglue.c ocfs2: fix crash caused by stale lvb with fsdlm plugin 2017-01-19 20:17:19 +01:00
stackglue.h ocfs2: fix crash caused by stale lvb with fsdlm plugin 2017-01-19 20:17:19 +01:00
suballoc.c ocfs2: improve performance for localalloc 2015-11-05 19:34:48 -08:00
suballoc.h
super.c ocfs2: return -EROFS to mount.ocfs2 if inode block is invalid 2018-05-30 07:48:55 +02:00
super.h ocfs2: neaten do_error, ocfs2_error and ocfs2_abort 2015-09-04 16:54:41 -07:00
symlink.c
symlink.h
sysfile.c
sysfile.h
uptodate.c
uptodate.h
xattr.c ocfs2/acl: use 'ip_xattr_sem' to protect getting extended attribute 2018-05-30 07:48:55 +02:00
xattr.h ocfs2: fix posix_acl_create deadlock 2016-05-18 17:06:44 -07:00