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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
..
9p v9fs_dir_readdir: fix double-free on p9stat_read error 2018-12-01 09:46:33 +01:00
adfs
affs affs_lookup(): close a race with affs_remove_link() 2018-05-30 07:48:51 +02:00
afs afs: Fix afs_kill_pages() 2017-12-20 10:04:56 +01:00
autofs4 autofs: fix autofs_sbi() does not check super block type 2018-09-19 22:49:00 +02:00
befs
bfs bfs: add sanity check at bfs_fill_super() 2018-12-01 09:46:33 +01:00
btrfs btrfs: wait on ordered extents on abort cleanup 2019-01-26 09:42:50 +01:00
cachefiles fscache, cachefiles: remove redundant variable 'cache' 2018-12-17 21:55:12 +01:00
ceph ceph: don't update importing cap's mseq when handing cap export 2019-01-13 10:05:33 +01:00
cifs cifs: Fix potential OOB access of lock element array 2019-01-16 22:16:10 +01:00
coda coda: fix 'kernel memory exposure attempt' in fsync 2017-11-24 08:32:25 +01:00
configfs configfs: replace strncpy with memcpy 2018-11-21 09:27:44 +01:00
cramfs Cramfs: fix abad comparison when wrap-arounds occur 2018-11-21 09:27:37 +01:00
debugfs dentry name snapshots 2017-08-06 19:19:42 -07:00
devpts devpts: clean up interface to pty drivers 2016-08-16 09:30:49 +02:00
dlm dlm: memory leaks on error path in dlm_user_request() 2019-01-13 10:05:33 +01:00
ecryptfs do d_instantiate/unlock_new_inode combinations safely 2018-05-30 07:48:52 +02:00
efivarfs efi: Make efivarfs entries immutable by default 2016-03-03 15:07:09 -08:00
efs
exofs fs/exofs: fix potential memory leak in mount option parsing 2018-11-27 16:08:00 +01:00
exportfs exportfs: do not read dentry after free 2018-12-17 21:55:10 +01:00
ext2 ext2: fix potential use after free 2018-12-13 09:21:27 +01:00
ext4 ext4: fix a potential fiemap/page fault deadlock w/ inline_data 2019-01-16 22:16:12 +01:00
f2fs f2fs: fix validation of the block count in sanity_check_raw_super 2019-01-26 09:42:49 +01:00
fat fs/fat/fatent.c: add cond_resched() to fat_count_free_clusters() 2018-11-10 07:41:40 -08:00
freevxfs
fscache fscache: fix race between enablement and dropping of object 2018-12-17 21:55:11 +01:00
fuse fuse: fix leaked notify reply 2018-11-21 09:27:44 +01:00
gfs2 gfs2: Fix loop in gfs2_rbm_find 2019-01-13 10:05:33 +01:00
hfs hfs: do not free node before using 2018-12-17 21:55:12 +01:00
hfsplus hfsplus: do not free node before using 2018-12-17 21:55:12 +01:00
hostfs hostfs: Freeing an ERR_PTR in hostfs_fill_sb_common() 2016-09-30 10:18:39 +02:00
hpfs hpfs: implement the show_options method 2016-06-01 12:15:54 -07:00
hugetlbfs hugetlbfs: fix bug in pgoff overflow checking 2018-12-17 21:55:15 +01:00
isofs isofs: fix timestamps beyond 2027 2017-11-30 08:37:20 +00:00
jbd2 jbd2: fix use after free in jbd2_log_do_checkpoint() 2018-11-21 09:27:34 +01:00
jffs2 jffs2: Fix use of uninitialized delayed_work, lockdep breakage 2019-01-26 09:42:53 +01:00
jfs jfs: Fix inconsistency between memory allocation and ea_buf->max_size 2018-08-09 12:19:28 +02:00
kernfs kernfs: Replace strncpy with memcpy 2018-12-13 09:21:29 +01:00
lockd lockd: fix access beyond unterminated strings in prints 2018-11-21 09:27:36 +01:00
logfs
minix
ncpfs staging: ncpfs: memory corruption in ncp_read_kernel() 2018-03-28 18:40:15 +02:00
nfs NFSv4.1: Fix the r/wsize checking 2018-11-21 09:27:35 +01:00
nfs_common lockd: fix "list_add double add" caused by legacy signal interface 2018-02-03 17:04:28 +01:00
nfsd nfsd: fix corrupted reply to badly ordered compound 2018-10-10 08:52:07 +02:00
nilfs2 do d_instantiate/unlock_new_inode combinations safely 2018-05-30 07:48:52 +02:00
nls
notify fanotify: fix logic of events on child 2018-04-24 09:32:11 +02:00
ntfs
ocfs2 ocfs2: fix panic due to unrecovered local alloc 2019-01-26 09:42:55 +01:00
omfs
openpromfs
overlayfs ovl: proper cleanup of workdir 2018-09-15 09:40:41 +02:00
proc proc: Remove empty line in /proc/self/status 2019-01-26 09:42:49 +01:00
pstore pstore/ram: Do not treat empty buffers as valid 2019-01-26 09:42:53 +01:00
qnx4
qnx6
quota fs/quota: Fix spectre gadget in do_quotactl 2018-09-09 20:04:36 +02:00
ramfs
reiserfs reiserfs: propagate errors from fill_with_dentries() properly 2018-11-27 16:08:00 +01:00
romfs romfs: use different way to generate fsid for BLOCK or MTD 2017-06-17 06:39:38 +02:00
squashfs squashfs: more metadata hardenings 2018-08-06 16:24:42 +02:00
sysfs scsi: sysfs: Introduce sysfs_{un,}break_active_protection() 2018-09-05 09:18:40 +02:00
sysv sysv: return 'err' instead of 0 in __sysv_write_inode 2018-12-17 21:55:09 +01:00
tracefs
ubifs ubifs: Check for name being NULL while mounting 2018-10-13 09:11:34 +02:00
udf udf: Detect incorrect directory size 2018-07-03 11:21:34 +02:00
ufs do d_instantiate/unlock_new_inode combinations safely 2018-05-30 07:48:52 +02:00
xfs xfs: don't fail when converting shortform attr to long form during ATTR_REPLACE 2019-01-26 09:42:52 +01:00
aio.c aio: fix spectre gadget in lookup_ioctx 2018-12-21 14:09:50 +01:00
anon_inodes.c
attr.c vfs: move permission checking into notify_change() for utimes(NULL) 2016-10-22 12:26:56 +02:00
bad_inode.c
binfmt_aout.c
binfmt_elf.c fs, elf: make sure to page align bss in load_elf_library 2018-11-21 09:27:41 +01:00
binfmt_elf_fdpic.c
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c fs/binfmt_misc.c: do not allow offset overflow 2018-07-03 11:21:26 +02:00
binfmt_script.c
block_dev.c fs/block_dev: always invalidate cleancache in invalidate_bdev() 2017-05-20 14:27:01 +02:00
buffer.c fs: add i_blocksize() 2017-06-14 13:16:24 +02:00
char_dev.c
compat.c
compat_binfmt_elf.c binfmt_elf: compat: avoid unused function warning 2018-02-25 11:03:51 +01:00
compat_ioctl.c fs: compat: Remove warning from COMPATIBLE_IOCTL 2018-04-08 11:51:57 +02:00
coredump.c coredump: Ensure proper size of sparse core files 2017-07-05 14:37:20 +02:00
dax.c
dcache.c fs/dcache.c: fix kmemcheck splat at take_dentry_name_snapshot() 2018-09-15 09:40:38 +02:00
dcookies.c
direct-io.c direct-io: Prevent NULL pointer access in submit_page_section 2017-10-18 09:20:42 +02:00
drop_caches.c
eventfd.c
eventpoll.c epoll: fix race between ep_poll_callback(POLLFREE) and ep_free()/ep_remove() 2017-09-07 08:34:10 +02:00
exec.c mm: replace get_user_pages() write/force parameters with gup_flags 2018-12-17 21:55:16 +01:00
fcntl.c fs/fcntl: f_setown, avoid undefined behaviour 2018-01-31 12:06:11 +01:00
fhandle.c fs/coredump: prevent fsuid=0 dumps into user-controlled directories 2016-04-12 09:08:58 -07:00
file.c
file_table.c
filesystems.c
fs-writeback.c bdi: Fix oops in wb_workfn() 2018-05-16 10:06:51 +02:00
fs_pin.c
fs_struct.c
inode.c Fix up non-directory creation in SGID directories 2018-07-17 11:31:43 +02:00
internal.h
ioctl.c
Kconfig
Kconfig.binfmt
libfs.c
locks.c locks: don't check for race with close when setting OFD lock 2018-01-17 09:35:27 +01:00
Makefile
mbcache.c
mount.h mnt: In propgate_umount handle visiting mounts in any order 2017-07-21 07:44:57 +02:00
mpage.c fs: add i_blocksize() 2017-06-14 13:16:24 +02:00
namei.c namei: allow restricted O_CREAT of FIFOs and regular files 2018-12-01 09:46:41 +01:00
namespace.c mount: Prevent MNT_DETACH from disconnecting locked mounts 2018-11-21 09:27:44 +01:00
no-block.c
nsfs.c nsfs: mark dentry with DCACHE_RCUACCESS 2018-02-16 20:09:43 +01:00
open.c fs: completely ignore unknown open flags 2017-07-15 11:57:44 +02:00
pipe.c pipe: cap initial pipe capacity according to pipe-max-size limit 2018-05-26 08:48:51 +02:00
pnode.c mnt: Make propagate_umount less slow for overlapping mount propagation trees 2017-07-21 07:44:58 +02:00
pnode.h mnt: Add a per mount namespace limit on the number of mounts 2017-04-30 05:49:28 +02:00
posix_acl.c tmpfs: clear S_ISGID when setting posix ACLs 2017-01-26 08:23:47 +01:00
proc_namespace.c vfs: show_vfsstat: do not ignore errors from show_devname method 2016-04-12 09:08:55 -07:00
read_write.c vfs: Return -ENXIO for negative SEEK_HOLE / SEEK_DATA offsets 2017-10-05 09:41:45 +02:00
readdir.c
select.c fs/select: add vmalloc fallback for select(2) 2018-01-31 12:06:09 +01:00
seq_file.c Make file credentials available to the seqfile interfaces 2017-08-06 19:19:42 -07:00
signalfd.c
splice.c vfs: fix uninitialized flags in splice_to_pipe() 2017-02-23 17:43:09 +01:00
stack.c
stat.c ufs: restore maintaining ->i_blocks 2017-06-14 13:16:24 +02:00
statfs.c
super.c sget(): handle failures of register_shrinker() 2018-03-03 10:19:41 +01:00
sync.c
timerfd.c timerfd: Protect the might cancel mechanism proper 2017-05-08 07:46:01 +02:00
userfaultfd.c userfaultfd: shmem: __do_fault requires VM_FAULT_NOPAGE 2017-12-20 10:04:53 +01:00
utimes.c vfs: move permission checking into notify_change() for utimes(NULL) 2016-10-22 12:26:56 +02:00
xattr.c getxattr: use correct xattr length 2018-09-09 20:04:36 +02:00