FYI, we noticed the below changes on git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs file-pin-devel commit 692ddb6c6808db7b70678b4cc3332781625c65f8 ("VFS: Impose ordering on accesses of d_inode and d_flags") +-------------------------------------------------+------------+------------+ | | 1dc0c0acc4 | 692ddb6c68 | +-------------------------------------------------+------------+------------+ | boot_successes | 15 | 0 | | boot_failures | 0 | 24 | | WARNING:at_fs/dcache.c:#dput() | 0 | 24 | | WARNING:at_fs/dcache.c:#d_lru_shrink_move() | 0 | 24 | | WARNING:at_fs/dcache.c:#shrink_dentry_list() | 0 | 24 | | page_allocation_failure:order:#,mode | 0 | 1 | | backtrace:do_unlinkat | 0 | 24 | | backtrace:SyS_unlink | 0 | 24 | | backtrace:do_mount | 0 | 24 | | backtrace:compat_SyS_mount | 0 | 12 | | backtrace:vmalloc | 0 | 1 | | backtrace:SyS_init_module | 0 | 1 | | WARNING:at_lib/list_debug.c:#__list_del_entry() | 0 | 23 | | RIP:__list_lru_walk_one | 0 | 4 | | Kernel_panic-not_syncing:softlockup:hung_tasks | 0 | 23 | | RIP:list_lru_isolate_move | 0 | 2 | | RIP:_raw_spin_lock | 0 | 3 | | RIP:__list_add | 0 | 4 | | RIP:dentry_lru_isolate_shrink | 0 | 3 | | RIP:__list_del_entry | 0 | 3 | | RIP:d_lru_shrink_move | 0 | 2 | | backtrace:SyS_mount | 0 | 12 | | RIP:_raw_spin_unlock | 0 | 1 | | RIP:_raw_spin_trylock | 0 | 1 | +-------------------------------------------------+------------+------------+ [ 4.890748] PM: Hibernation image not present or could not be loaded. [ 4.893862] Freeing unused kernel memory: 1796K (ffffffff81e51000 - ffffffff82012000) [ 4.995832] ------------[ cut here ]------------ [ 4.997535] WARNING: CPU: 0 PID: 107 at fs/dcache.c:406 dput+0x1d7/0x250() [ 5.000581] Modules linked in: [ 5.001971] CPU: 0 PID: 107 Comm: udevd Not tainted 4.0.0-rc1-00155-g692ddb6 #1 [ 5.004586] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 5.006278] ffffffff81ba0730 ffff880013a0fdc8 ffffffff818aab67 0000000000001ce6 [ 5.009931] 0000000000000000 ffff880013a0fe08 ffffffff810727aa ffff880013a0fe08 [ 5.013948] ffff88000a54ed80 ffff88000a54edd8 0000000000000000 ffff880013a0fea8 [ 5.027545] Call Trace: [ 5.028911] [<ffffffff818aab67>] dump_stack+0x4c/0x65 [ 5.030955] [<ffffffff810727aa>] warn_slowpath_common+0x8a/0xc0 [ 5.032958] [<ffffffff8107289a>] warn_slowpath_null+0x1a/0x20 [ 5.034951] [<ffffffff811fec37>] dput+0x1d7/0x250 [ 5.036715] [<ffffffff811f7ca5>] do_unlinkat+0x165/0x320 [ 5.047767] [<ffffffff81207ef4>] ? mntput+0x24/0x40 [ 5.049344] [<ffffffff811f0042>] ? path_put+0x22/0x30 [ 5.050962] [<ffffffff811f8fe6>] SyS_unlink+0x16/0x20 [ 5.052563] [<ffffffff818b59c9>] ia32_do_call+0x13/0x13 [ 5.054201] ---[ end trace 132f5255db464839 ]--- [ 5.226810] ------------[ cut here ]------------ Thanks, Ying Huang _______________________________________________ LKP mailing list LKP(a)linux.intel.com