I get kmemleak reports against XFS when I run the thinp-test-suite
against 3.5-rc4. I didn't see any XFS leaks with 3.4.
kmemleak reports:
unreferenced object 0xffff8802767798a0 (size 208):
comm "kworker/4:1", pid 25239, jiffies 4799921469 (age 5830.005s)
hex dump (first 32 bytes):
70 5c 6b ab 02 88 ff ff 00 58 0d 2c 03 88 ff ff p\k......X.,....
c0 8e 7d a0 ff ff ff ff 04 00 00 00 00 00 00 00 ..}.............
backtrace:
[<ffffffff814b6e3e>] kmemleak_alloc+0x5e/0xc0
[<ffffffff8114c4b3>] kmem_cache_alloc+0x103/0x1d0
[<ffffffffa078d987>] kmem_zone_alloc+0x77/0xf0 [xfs]
[<ffffffffa078da1e>] kmem_zone_zalloc+0x1e/0x50 [xfs]
[<ffffffffa0791c4c>] xfs_allocbt_init_cursor+0x4c/0xd0 [xfs]
[<ffffffffa07902a8>] xfs_alloc_ag_vextent_near+0x68/0xb70 [xfs]
[<ffffffffa0790e85>] xfs_alloc_ag_vextent+0xd5/0x100 [xfs]
[<ffffffffa0791744>] __xfs_alloc_vextent+0x2a4/0x5f0 [xfs]
[<ffffffffa0791ada>] xfs_alloc_vextent_worker+0x4a/0x80 [xfs]
[<ffffffff8105a3f2>] process_one_work+0x132/0x450
[<ffffffff8105c1fb>] worker_thread+0x17b/0x3c0
[<ffffffff8106137e>] kthread+0x9e/0xb0
[<ffffffff814d7ca4>] kernel_thread_helper+0x4/0x10
[<ffffffffffffffff>] 0xffffffffffffffff
unloading the xfs module reports:
slab error in kmem_cache_destroy(): cache `xfs_btree_cur': Can't free all objects
Pid: 26305, comm: modprobe Tainted: G W O 3.5.0-rc4.cache+ #2
Call Trace:
[<ffffffff8114ca3f>] kmem_cache_destroy+0xaf/0xe0
[<ffffffffa0788074>] xfs_destroy_zones+0xc4/0x110 [xfs]
[<ffffffffa07d32b3>] exit_xfs_fs+0x33/0x35 [xfs]
[<ffffffff8109f82f>] sys_delete_module+0x1cf/0x2c0
[<ffffffff810bb39c>] ? __audit_syscall_entry+0xcc/0x210
[<ffffffff814d69a9>] system_call_fastpath+0x16/0x1b
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