AuxXxilium/linux_dsm_epyc7002
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e5a15e17a7
linux_dsm_epyc7002/fs
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Junxiao Bi e5a15e17a7 ocfs2: fix panic on nfs server over ocfs2 
The following kernel panic was captured when running nfs server over
ocfs2, at that time ocfs2_test_inode_bit() was checking whether one
inode locating at "blkno" 5 was valid, that is ocfs2 root inode, its
"suballoc_slot" was OCFS2_INVALID_SLOT(65535) and it was allocted from
//global_inode_alloc, but here it wrongly assumed that it was got from per
slot inode alloctor which would cause array overflow and trigger kernel
panic.

  BUG: unable to handle kernel paging request at 0000000000001088
  IP: [<ffffffff816f6898>] _raw_spin_lock+0x18/0xf0
  PGD 1e06ba067 PUD 1e9e7d067 PMD 0
  Oops: 0002 [#1] SMP
  CPU: 6 PID: 24873 Comm: nfsd Not tainted 4.1.12-124.36.1.el6uek.x86_64 #2
  Hardware name: Huawei CH121 V3/IT11SGCA1, BIOS 3.87 02/02/2018
  RIP: _raw_spin_lock+0x18/0xf0
  RSP: e02b:ffff88005ae97908  EFLAGS: 00010206
  RAX: ffff88005ae98000 RBX: 0000000000001088 RCX: 0000000000000000
  RDX: 0000000000020000 RSI: 0000000000000009 RDI: 0000000000001088
  RBP: ffff88005ae97928 R08: 0000000000000000 R09: ffff880212878e00
  R10: 0000000000007ff0 R11: 0000000000000000 R12: 0000000000001088
  R13: ffff8800063c0aa8 R14: ffff8800650c27d0 R15: 000000000000ffff
  FS:  0000000000000000(0000) GS:ffff880218180000(0000) knlGS:ffff880218180000
  CS:  e033 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000001088 CR3: 00000002033d0000 CR4: 0000000000042660
  Call Trace:
    igrab+0x1e/0x60
    ocfs2_get_system_file_inode+0x63/0x3a0 [ocfs2]
    ocfs2_test_inode_bit+0x328/0xa00 [ocfs2]
    ocfs2_get_parent+0xba/0x3e0 [ocfs2]
    reconnect_path+0xb5/0x300
    exportfs_decode_fh+0xf6/0x2b0
    fh_verify+0x350/0x660 [nfsd]
    nfsd4_putfh+0x4d/0x60 [nfsd]
    nfsd4_proc_compound+0x3d3/0x6f0 [nfsd]
    nfsd_dispatch+0xe0/0x290 [nfsd]
    svc_process_common+0x412/0x6a0 [sunrpc]
    svc_process+0x123/0x210 [sunrpc]
    nfsd+0xff/0x170 [nfsd]
    kthread+0xcb/0xf0
    ret_from_fork+0x61/0x90
  Code: 83 c2 02 0f b7 f2 e8 18 dc 91 ff 66 90 eb bf 0f 1f 40 00 55 48 89 e5 41 56 41 55 41 54 53 0f 1f 44 00 00 48 89 fb ba 00 00 02 00 <f0> 0f c1 17 89 d0 45 31 e4 45 31 ed c1 e8 10 66 39 d0 41 89 c6
  RIP   _raw_spin_lock+0x18/0xf0
  CR2: 0000000000001088
  ---[ end trace 7264463cd1aac8f9 ]---
  Kernel panic - not syncing: Fatal exception

Link: http://lkml.kernel.org/r/20200616183829.87211-4-junxiao.bi@oracle.com
Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Jun Piao <piaojun@huawei.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-26 00:27:37 -07:00
..
9p
adfs
affs
afs afs: Fix hang on rmmod due to outstanding timer 2020-06-20 12:01:58 -07:00
autofs
befs
bfs
btrfs for-5.8-rc2-tag 2020-06-23 09:20:11 -07:00
cachefiles A fair amount of stuff this time around, dominated by yet another massive 2020-06-01 15:45:27 -07:00
ceph ceph: skip checking caps when session reconnecting and releasing reqs 2020-06-01 13:22:53 +02:00
cifs smb3: Add debug message for new file creation with idsfromsid mount option 2020-06-12 16:31:06 -05:00
coda
configfs A fair amount of stuff this time around, dominated by yet another massive 2020-06-01 15:45:27 -07:00
cramfs
crypto fscrypt updates for 5.8 2020-06-01 12:10:17 -07:00
debugfs
devpts
dlm dlm for 5.8 2020-06-05 16:43:16 -07:00
ecryptfs A fair amount of stuff this time around, dominated by yet another massive 2020-06-01 15:45:27 -07:00
efivarfs
efs
erofs erofs: fix partially uninitialized misuse in z_erofs_onlinepage_fixup 2020-06-24 09:47:44 +08:00
exfat Description for this pull request: 2020-06-09 11:24:59 -07:00
exportfs
ext2 mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
ext4 This is the second round of ext4 commits for 5.8 merge window. It 2020-06-15 09:32:10 -07:00
f2fs f2fs-for-5.8-rc1 2020-06-09 11:28:59 -07:00
fat fat: improve the readahead for FAT entries 2020-06-04 19:06:25 -07:00
freevxfs
fscache Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-06-03 16:27:18 -07:00
fuse fuse update for 5.8 2020-06-09 15:48:24 -07:00
gfs2 Changes in gfs2: 2020-06-08 12:47:09 -07:00
hfs for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
hfsplus block: remove the error_sector argument to blkdev_issue_flush 2020-05-22 08:45:46 -06:00
hostfs
hpfs hpfs: fix warning due to superfluous semicolon 2020-06-06 10:08:17 -07:00
hugetlbfs mmap locking API: convert mmap_sem API comments 2020-06-09 09:39:14 -07:00
iomap New code for 5.8: 2020-06-13 12:44:30 -07:00
isofs for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
jbd2 This is the second round of ext4 commits for 5.8 merge window. It 2020-06-15 09:32:10 -07:00
jffs2 jffs2: Replace zero-length array with flexible-array 2020-06-15 23:08:31 -05:00
jfs Replace zero-length array in JFS 2020-06-02 20:11:35 -07:00
kernfs mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
lockd
minix
nfs NFS Client Updates for Linux 5.8 2020-06-11 12:22:41 -07:00
nfs_common
nfsd Highlights: 2020-06-11 10:33:13 -07:00
nilfs2 nilfs2: fix null pointer dereference at nilfs_segctor_do_construct() 2020-06-10 19:14:17 -07:00
nls treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
notify treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
ntfs Merge branch 'akpm' (patches from Andrew) 2020-06-02 12:21:36 -07:00
ocfs2 ocfs2: fix panic on nfs server over ocfs2 2020-06-26 00:27:37 -07:00
omfs fs: convert mpage_readpages to mpage_readahead 2020-06-02 10:59:07 -07:00
openpromfs
orangefs orangefs: a conversion and a cleanup... 2020-06-05 16:44:36 -07:00
overlayfs overlayfs update for 5.8 2020-06-09 15:40:50 -07:00
proc A few fixes and small cleanups for tracing: 2020-06-20 13:17:47 -07:00
pstore Merge branch 'uaccess.__copy_from_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-06-01 16:18:46 -07:00
qnx4
qnx6 fs: convert mpage_readpages to mpage_readahead 2020-06-02 10:59:07 -07:00
quota
ramfs
reiserfs \n 2020-06-04 13:53:10 -07:00
romfs treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
squashfs Squashfs: Replace zero-length array with flexible-array 2020-06-15 23:08:32 -05:00
sysfs RDMA 5.8 merge window pull request 2020-06-05 14:05:57 -07:00
sysv
tracefs
ubifs mm: remove the pgprot argument to __vmalloc 2020-06-02 10:59:11 -07:00
udf for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
ufs
unicode
vboxsf
verity
xfs Fixes for 5.8: 2020-06-13 12:40:24 -07:00
zonefs zonefs changes for 5.8 2020-06-04 13:50:13 -07:00
aio.c aio: Replace zero-length array with flexible-array 2020-06-15 23:08:25 -05:00
anon_inodes.c
attr.c
bad_inode.c fs: move the fiemap definitions out of fs.h 2020-06-03 23:16:55 -04:00
binfmt_aout.c
binfmt_elf_fdpic.c Merge branch 'uaccess.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-06-10 16:02:54 -07:00
binfmt_elf.c Merge branch 'uaccess.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-06-10 16:02:54 -07:00
binfmt_em86.c Merge branch 'akpm' (patches from Andrew) 2020-06-04 19:18:29 -07:00
binfmt_flat.c Merge branch 'uaccess.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-06-10 16:02:54 -07:00
binfmt_misc.c Merge branch 'akpm' (patches from Andrew) 2020-06-04 19:18:29 -07:00
binfmt_script.c Merge branch 'akpm' (patches from Andrew) 2020-06-04 19:18:29 -07:00
block_dev.c block: make function 'kill_bdev' static 2020-06-18 09:24:35 -06:00
buffer.c fs/buffer.c: use attach/detach_page_private 2020-06-02 10:59:07 -07:00
char_dev.c
compat_binfmt_elf.c Split the old READ_IMPLIES_EXEC workaround from executable PT_GNU_STACK 2020-06-05 13:45:21 -07:00
compat.c
coredump.c mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
d_path.c
dax.c
dcache.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-06-03 16:27:18 -07:00
dcookies.c
direct-io.c for-5.8-part2-tag 2020-06-14 09:47:25 -07:00
drop_caches.c
eventfd.c
eventpoll.c epoll: call final ep_events_available() check under the lock 2020-05-14 10:00:35 -07:00
exec.c mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
fcntl.c
fhandle.c
file_table.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-06-03 16:27:18 -07:00
file.c fix multiplication overflow in copy_fdtable() 2020-05-19 18:29:36 -04:00
filesystems.c
fs_context.c vfs: don't parse "silent" option 2020-05-14 16:44:25 +02:00
fs_parser.c
fs_pin.c
fs_struct.c
fs_types.c
fs-writeback.c A lot of bug fixes and cleanups for ext4, including: 2020-06-05 16:19:28 -07:00
fsopen.c
inode.c AFS Changes 2020-06-05 16:26:36 -07:00
internal.h A lot of bug fixes and cleanups for ext4, including: 2020-06-05 16:19:28 -07:00
io_uring.c io_uring: fix possible race condition against REQ_F_NEED_CLEANUP 2020-06-18 08:32:44 -06:00
io-wq.c io_uring: cancel all task's requests on exit 2020-06-15 08:51:34 -06:00
io-wq.h io_uring: cancel by ->task not pid 2020-06-15 08:51:38 -06:00
ioctl.c fs: remove the access_ok() check in ioctl_fiemap 2020-06-03 23:16:55 -04:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Kconfig.binfmt treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
libfs.c block: remove the error_sector argument to blkdev_issue_flush 2020-05-22 08:45:46 -06:00
locks.c Highlights: 2020-06-11 10:33:13 -07:00
Makefile
mbcache.c
mount.h
mpage.c fs: convert mpage_readpages to mpage_readahead 2020-06-02 10:59:07 -07:00
namei.c vfs: clean up posix_acl_permission() logic aroudn MAY_NOT_BLOCK 2020-06-08 11:04:19 -07:00
namespace.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-06-10 16:09:11 -07:00
no-block.c
nsfs.c
open.c Merge branch 'akpm' (patches from Andrew) 2020-06-02 12:21:36 -07:00
pipe.c Notifications over pipes + Keyring notifications 2020-06-13 09:56:21 -07:00
pnode.c
pnode.h
posix_acl.c vfs: clean up posix_acl_permission() logic aroudn MAY_NOT_BLOCK 2020-06-08 11:04:19 -07:00
proc_namespace.c Merge branch 'proc-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2020-06-04 13:54:34 -07:00
read_write.c
readdir.c
select.c pselect6() and friends: take handling the combined 6th/7th args into helper 2020-05-29 19:10:42 -04:00
seq_file.c fs/seq_file.c: seq_read: Update pr_info_ratelimited 2020-06-04 19:06:25 -07:00
signalfd.c
splice.c Notifications over pipes + Keyring notifications 2020-06-13 09:56:21 -07:00
stack.c
stat.c New code for 5.8: 2020-06-02 19:45:12 -07:00
statfs.c
super.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-06-10 16:09:11 -07:00
sync.c overlayfs update for 5.8 2020-06-09 15:40:50 -07:00
timerfd.c
userfaultfd.c mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
utimes.c
xattr.c