https://github.com/torvalds/linux
Commit 4f6563677ae8 ("Move locks API users to locks_lock_inode_wait()") move flock/posix lock indentify code to locks_lock_inode_wait(), but missed to set fl_flags to FL_FLOCK which caused the following kernel panic on 4.4.0_rc5. kernel BUG at fs/locks.c:1895! invalid opcode: 0000 [#1] SMP Modules linked in: ocfs2(O) ocfs2_dlmfs(O) ocfs2_stack_o2cb(O) ocfs2_dlm(O) ocfs2_nodemanager(O) ocfs2_stackglue(O) iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi xen_kbdfront xen_netfront xen_fbfront xen_blkfront CPU: 0 PID: 20268 Comm: flock_unit_test Tainted: G O 4.4.0-rc5-next-20151217 #1 Hardware name: Xen HVM domU, BIOS 4.3.1OVM 05/14/2014 task: ffff88007b3672c0 ti: ffff880028b58000 task.ti: ffff880028b58000 RIP: locks_lock_inode_wait+0x2e/0x160 Call Trace: ocfs2_do_flock+0x91/0x160 [ocfs2] ocfs2_flock+0x76/0xd0 [ocfs2] SyS_flock+0x10f/0x1a0 entry_SYSCALL_64_fastpath+0x12/0x71 Code: e5 41 57 41 56 49 89 fe 41 55 41 54 53 48 89 f3 48 81 ec 88 00 00 00 8b 46 40 83 e0 03 83 f8 01 0f 84 ad 00 00 00 83 f8 02 74 04 <0f> 0b eb fe 4c 8d ad 60 ff ff ff 4c 8d 7b 58 e8 0e 8e 73 00 4d RIP locks_lock_inode_wait+0x2e/0x160 RSP <ffff880028b5bce8> ---[ end trace dfca74ec9b5b274c ]--- Fixes: 4f6563677ae8 ("Move locks API users to locks_lock_inode_wait()") Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com> Cc: Mark Fasheh <mfasheh@suse.de> Cc: Joel Becker <jlbec@evilplan.org> Cc: Joseph Qi <joseph.qi@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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ocfs2: fix flock panic issue
File | Mode | Size |
---|---|---|
firmware.H16 | -rw-r--r-- | 4.1 KB |
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