netdev - mutex WARNING while running ip from iproute2 package

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Message-Id: <200804201757.09938.denys@visp.net.lb>
Date:	Sun, 20 Apr 2008 17:57:09 +0300
From:	Denys Fedoryshchenko <denys@...p.net.lb>
To:	netdev@...r.kernel.org
Subject: mutex WARNING while running ip from iproute2 package

Hi

Just noticed warning while upgrading and loading 2.6.25.
Configuration a bit complicated, so it is difficult to tell which command trigger it.
If it is required, i can spend time and will try to find it.

It is QEMU machine, non-smp.

[    8.665310] ------------[ cut here ]------------
[    8.666254] WARNING: at kernel/mutex.c:353 mutex_trylock+0x3c/0xef()
[    8.667254] Modules linked in: macvlan ifb e1000e em_nbyte cls_tcindex act_gact cls_rsvp sch_htb cls_fw act_mirred em_u32 sch_red sch_sfq sch_tbf sch_teql cls_basic act_police sch_gred act_pedit sch_hfsc cls_rsvp6 sch_ingress em_meta em_text act_ipt sch_dsmark sch_prio sch_netem act_simple cls_u32 em_cmp sch_cbq cls_route xt_TCPMSS iptable_nat ipt_LOG ipt_MASQUERADE ipt_REDIRECT nf_nat nf_conntrack_ipv4 nf_conntrack nfnetlink iptable_filter ip_tables x_tables 8021q tun tulip r8169 sky2 via_velocity via_rhine sis900 ne2k_pci 8390 skge tg3 8139too e1000 e100 mtdblock mtd_blkdevs aic79xx mptsas scsi_transport_sas mptspi scsi_transport_spi mptscsih mptbase sata_via sata_uli sata_svw sata_sis sata_sil24 sata_sil sata_mv ahci pata_via pata_sis pata_serverworks pata_oldpiix pata_mpiix pata_marvell pata_ali ata_generic ata_piix libata dock usbhid uhci_hcd ehci_hcd ohci_hcd usbcore
[    8.693251] Pid: 1350, comm: ip Not tainted 2.6.25-build-0028 #14
[    8.694253]  [<c0120360>] warn_on_slowpath+0x41/0x51
[    8.696262]  [<c012ea2a>] ? __kernel_text_address+0x1b/0x27
[    8.698252]  [<c010484a>] ? dump_trace+0xce/0xda
[    8.699249]  [<c0109d9e>] ? save_stack_address+0x0/0x2c
[    8.700724]  [<c013a4b4>] ? mark_held_locks+0x41/0x5c
[    8.701901]  [<c015ca59>] ? kmem_cache_alloc+0x69/0xa1
[    8.703251]  [<c013a619>] ? trace_hardirqs_on+0xcb/0x102
[    8.704251]  [<c02a21b6>] mutex_trylock+0x3c/0xef
[    8.705251]  [<c0257122>] rtnl_trylock+0xd/0xf
[    8.706250]  [<c024d510>] __dev_set_promiscuity+0x15/0xa9
[    8.707251]  [<c024d5df>] __dev_set_rx_mode+0x3b/0x75
[    8.709250]  [<c0250b60>] dev_unicast_add+0x79/0x94
[    8.711251]  [<e0a69682>] macvlan_open+0x2c/0x73 [macvlan]
[    8.712251]  [<c0250076>] dev_open+0x42/0x74
[    8.714250]  [<c024ecf4>] dev_change_flags+0x9f/0x14f
[    8.716250]  [<c0256526>] do_setlink+0x248/0x2fd
[    8.717257]  [<c0257837>] rtnl_newlink+0x24a/0x399
[    8.719264]  [<c02a279c>] ? mutex_lock_nested+0x1ea/0x1fc
[    8.721250]  [<c02575ed>] ? rtnl_newlink+0x0/0x399
[    8.723249]  [<c025730a>] rtnetlink_rcv_msg+0x193/0x1ad
[    8.724249]  [<c0257156>] ? rtnl_lock+0xf/0x11
[    8.726250]  [<c0257177>] ? rtnetlink_rcv_msg+0x0/0x1ad
[    8.728248]  [<c026194a>] netlink_rcv_skb+0x30/0x82
[    8.730249]  [<c025716f>] rtnetlink_rcv+0x17/0x1f
[    8.732248]  [<c026172a>] netlink_unicast+0x1bb/0x220
[    8.733250]  [<c0261ee2>] netlink_sendmsg+0x243/0x250
[    8.735252]  [<c0244edc>] sock_sendmsg+0xca/0xe1
[    8.737253]  [<c0130472>] ? autoremove_wake_function+0x0/0x33
[    8.739248]  [<c0130472>] ? autoremove_wake_function+0x0/0x33
[    8.741253]  [<c0130472>] ? autoremove_wake_function+0x0/0x33
[    8.743250]  [<c01d5072>] ? copy_from_user+0x2c/0x4f
[    8.744248]  [<c024b411>] ? verify_iovec+0x40/0x73
[    8.746248]  [<c0245042>] sys_sendmsg+0x14f/0x1aa
[    8.748248]  [<c024581b>] ? sys_recvmsg+0x117/0x17f
[    8.750261]  [<c02a376c>] ? _spin_unlock+0x1d/0x20
[    8.752249]  [<c0245ce2>] sys_socketcall+0x14e/0x166
[    8.753248]  [<c01038a7>] ? restore_nocheck+0x12/0x15
[    8.755248]  [<c0103846>] syscall_call+0x7/0xb
[    8.756250]  =======================
[    8.757241] ---[ end trace 45294fe3d9e9f489 ]---

-- 
------
Technical Manager
Virtual ISP S.A.L.
Lebanon
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