Hi,
I'm seeing bug in a host with a 3.2.1 kernel.
This host is running both kvm and lxc guest.
It seems that it happened just after the restart of a lxc guest.
However, it doesn't seem to affect any guest.
I was just wondering if this was problematic, and if so, what should I
do to debug this further.
Regards.
--
Jean-Philippe Menil - Pôle réseau Service IRTS
DSI Université de Nantes
jean-philippe.menil@xxxxxxxxxxxxxx
Tel : 02.53.48.49.27 - Fax : 02.53.48.49.09
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285125] =============================================================================
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285173] BUG nf_conntrack_ffff880863c50000: Objects remaining on kmem_cache_close()
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285223] -----------------------------------------------------------------------------
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285224]
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285291] INFO: Slab 0xffffea000fecf280 objects=26 used=1 fp=0xffff8803fb3ca4e0 flags=0x200000000004080
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285339] Pid: 5, comm: kworker/u:0 Not tainted 3.2.1-dsiun-120113 #55
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285366] Call Trace:
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285393] [<ffffffff811194c0>] ? slab_err+0x80/0x90
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285419] [<ffffffff8111c6c9>] ? kmem_cache_destroy+0x169/0x3b0
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285449] [<ffffffff8111c6ec>] ? kmem_cache_destroy+0x18c/0x3b0
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285487] [<ffffffffa049f753>] ? nf_conntrack_cleanup+0xd3/0x130 [nf_conntrack]
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285545] [<ffffffff812f7b48>] ? ops_exit_list.isra.1+0x38/0x70
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285574] [<ffffffff812f8260>] ? net_drop_ns+0x40/0x40
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285600] [<ffffffff812f8360>] ? cleanup_net+0x100/0x1a0
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285643] [<ffffffff810635c6>] ? process_one_work+0x106/0x460
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285670] [<ffffffff8106486c>] ? worker_thread+0x14c/0x330
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285697] [<ffffffff81064720>] ? manage_workers.isra.30+0x210/0x210
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285736] [<ffffffff8106905e>] ? kthread+0x7e/0x90
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285763] [<ffffffff813aee34>] ? kernel_thread_helper+0x4/0x10
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285790] [<ffffffff81068fe0>] ? kthread_worker_fn+0x190/0x190
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285817] [<ffffffff813aee30>] ? gs_change+0x13/0x13
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285843] INFO: Object 0xffff8803fb3ca000 @offset=0
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285869] SLUB nf_conntrack_ffff880863c50000: kmem_cache_destroy called for cache that still has objects.
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285916] Pid: 5, comm: kworker/u:0 Not tainted 3.2.1-dsiun-120113 #55
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285943] Call Trace:
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285964] [<ffffffff8111c7a8>] ? kmem_cache_destroy+0x248/0x3b0
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.285991] [<ffffffff8111c863>] ? kmem_cache_destroy+0x303/0x3b0
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.286020] [<ffffffffa049f753>] ? nf_conntrack_cleanup+0xd3/0x130 [nf_conntrack]
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.286064] [<ffffffff812f7b48>] ? ops_exit_list.isra.1+0x38/0x70
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.286092] [<ffffffff812f8260>] ? net_drop_ns+0x40/0x40
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.286117] [<ffffffff812f8360>] ? cleanup_net+0x100/0x1a0
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.286144] [<ffffffff810635c6>] ? process_one_work+0x106/0x460
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.286227] [<ffffffff8106486c>] ? worker_thread+0x14c/0x330
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.286253] [<ffffffff81064720>] ? manage_workers.isra.30+0x210/0x210
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.286281] [<ffffffff8106905e>] ? kthread+0x7e/0x90
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.286306] [<ffffffff813aee34>] ? kernel_thread_helper+0x4/0x10
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.286333] [<ffffffff81068fe0>] ? kthread_worker_fn+0x190/0x190
Feb 8 13:31:38 ayrshire.u06.univ-nantes.prive kernel: [1133137.286360] [<ffffffff813aee30>] ? gs_change+0x13/0x13
