HFSC warning BUG.......Queue Problem

dashang.trivedi · 08-23-2011, 08:45 AM

i have upgraded my kernel to 2.6.39 ...but after boot with new kernel its show error in /var/log/messages and dmessg ....
its display in /var/log/message

Code:

 iptable_raw iptable_filter iptable_mangle iptable_nat ip_tables cls_fw sch_sfq sch_hfsc arptable_filter arp_tables x_tables pppoe pppox ppp_generic slhc nf_nat_tftp nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_ftp nf_nat nf_conntrack_tftp nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_irc nf_conntrack_ftp nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 8021q 
Aug 23 12:04:06 1314081246 kernel: Pid: 0, comm: kworker/0:1 Tainted: G        W   2.6.39.2-1smp #7 
Aug 23 12:04:06 1314081246 kernel: Call Trace: 
Aug 23 12:04:06 1314081246 kernel:  [<c1026548>] warn_slowpath_common+0x65/0x7a 
Aug 23 12:04:06 1314081246 kernel:  [<f83803be>] ? hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc] 
Aug 23 12:04:06 1314081246 kernel:  [<c102656c>] warn_slowpath_null+0xf/0x13 
Aug 23 12:04:06 1314081246 kernel:  [<f83803be>] hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc] 
Aug 23 12:04:06 1314081246 kernel:  [<c11c01c2>] __qdisc_run+0x70/0xe4 
Aug 23 12:04:06 1314081246 kernel:  [<c11ac95d>] net_tx_action+0x9c/0xe6 
Aug 23 12:04:06 1314081246 kernel:  [<c102a936>] __do_softirq+0x6b/0xe5 
Aug 23 12:04:06 1314081246 kernel:  [<c102a8cb>] ? __local_bh_enable+0x68/0x68 
Aug 23 12:04:06 1314081246 kernel:  <IRQ>  [<c102a847>] ? irq_exit+0x32/0x3b 
Aug 23 12:04:06 1314081246 kernel:  [<c10149f2>] ? smp_apic_timer_interrupt+0x6e/0x7c 
Aug 23 12:04:06 1314081246 kernel:  [<c121e5b2>] ? apic_timer_interrupt+0x2a/0x30 
Aug 23 12:04:06 1314081246 kernel:  [<c1007709>] ? mwait_idle+0x52/0x58 
Aug 23 12:04:06 1314081246 kernel:  [<c100198c>] ? cpu_idle+0x3a/0x52 
Aug 23 12:04:06 1314081246 kernel:  [<c1219d9a>] ? start_secondary+0x190/0x195 
Aug 23 12:04:06 1314081246 kernel: ---[ end trace 95ec5361035a3ab8 ]--- 
Aug 23 12:04:06 1314081246 kernel: ------------[ cut here ]------------ 
Aug 23 12:04:06 1314081246 kernel: WARNING: at net/sched/sch_hfsc.c:1427 hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc]() 
Aug 23 12:04:06 1314081246 kernel: Hardware name: Bridgeport 

Aug 23 12:04:06 1314081246 kernel: Modules linked in: xt_NOTRACK xt_multiport ipt_REDIRECT xt_tcpudp xt_mark xt_set ip_set nfnetlink iptable_raw iptable_filter iptable_mangle iptable_nat ip_tables cls_fw sch_sfq sch_hfsc arptable_filter arp_tables x_tables pppoe pppox ppp_generic slhc nf_nat_tftp nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_ftp nf_nat nf_conntrack_tftp nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_irc nf_conntrack_ftp nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 8021q 
Aug 23 12:04:06 1314081246 kernel: Pid: 0, comm: kworker/0:1 Tainted: G        W   2.6.39.2-1smp #7 
Aug 23 12:04:06 1314081246 kernel: Call Trace: 
Aug 23 12:04:06 1314081246 kernel:  [<c1026548>] warn_slowpath_common+0x65/0x7a 
Aug 23 12:04:06 1314081246 kernel:  [<f83803be>] ? hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc] 
Aug 23 12:04:06 1314081246 kernel:  [<c102656c>] warn_slowpath_null+0xf/0x13 
Aug 23 12:04:06 1314081246 kernel:  [<f83803be>] hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc] 
Aug 23 12:04:06 1314081246 kernel:  [<c11c01c2>] __qdisc_run+0x70/0xe4 
Aug 23 12:04:06 1314081246 kernel:  [<c11ac95d>] net_tx_action+0x9c/0xe6 
Aug 23 12:04:06 1314081246 kernel:  [<c102a936>] __do_softirq+0x6b/0xe5 
Aug 23 12:04:06 1314081246 kernel:  [<c102a8cb>] ? __local_bh_enable+0x68/0x68 
Aug 23 12:04:06 1314081246 kernel:  <IRQ>  [<c102a847>] ? irq_exit+0x32/0x3b 
Aug 23 12:04:06 1314081246 kernel:  [<c10149f2>] ? smp_apic_timer_interrupt+0x6e/0x7c 
Aug 23 12:04:06 1314081246 kernel:  [<c121e5b2>] ? apic_timer_interrupt+0x2a/0x30 
Aug 23 12:04:06 1314081246 kernel:  [<c1007709>] ? mwait_idle+0x52/0x58 
Aug 23 12:04:06 1314081246 kernel:  [<c100198c>] ? cpu_idle+0x3a/0x52 
Aug 23 12:04:06 1314081246 kernel:  [<c1219d9a>] ? start_secondary+0x190/0x195 
Aug 23 12:04:06 1314081246 kernel: ---[ end trace 95ec5361035a3ab9 ]--- 
Aug 23 12:04:06 1314081246 kernel: ------------[ cut here ]------------ 
Aug 23 12:04:06 1314081246 kernel: WARNING: at net/sched/sch_hfsc.c:1427 hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc]() 
Aug 23 12:04:06 1314081246 kernel: Hardware name: Bridgeport 
Aug 23 12:04:06 1314081246 kernel: Modules linked in: xt_NOTRACK xt_multiport ipt_REDIRECT xt_tcpudp xt_mark xt_set ip_set nfnetlink iptable_raw iptable_filter iptable_mangle iptable_nat ip_tables cls_fw sch_sfq sch_hfsc arptable_filter arp_tables x_tables pppoe pppox ppp_generic slhc nf_nat_tftp nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_ftp nf_nat nf_conntrack_tftp nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_irc nf_conntrack_ftp nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 8021q 
Aug 23 12:04:06 1314081246 kernel: Pid: 0, comm: kworker/0:1 Tainted: G        W   2.6.39.2-1smp #7 
Aug 23 12:04:06 1314081246 kernel: Call Trace: 
Aug 23 12:04:06 1314081246 kernel:  [<c1026548>] warn_slowpath_common+0x65/0x7a 
Aug 23 12:04:06 1314081246 kernel:  [<f83803be>] ? hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc] 
Aug 23 12:04:06 1314081246 kernel:  [<c102656c>] warn_slowpath_null+0xf/0x13 
Aug 23 12:04:06 1314081246 kernel:  [<f83803be>] hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc] 
Aug 23 12:04:06 1314081246 kernel:  [<c11c01c2>] __qdisc_run+0x70/0xe4 
Aug 23 12:04:06 1314081246 kernel:  [<c11ac95d>] net_tx_action+0x9c/0xe6 
Aug 23 12:04:06 1314081246 kernel:  [<c102a936>] __do_softirq+0x6b/0xe5 
Aug 23 12:04:06 1314081246 kernel:  [<c102a8cb>] ? __local_bh_enable+0x68/0x68 
Aug 23 12:04:06 1314081246 kernel:  <IRQ>  [<c102a847>] ? irq_exit+0x32/0x3b 
Aug 23 12:04:06 1314081246 kernel:  [<c10149f2>] ? smp_apic_timer_interrupt+0x6e/0x7c 
Aug 23 12:04:06 1314081246 kernel:  [<c121e5b2>] ? apic_timer_interrupt+0x2a/0x30 
Aug 23 12:04:06 1314081246 kernel:  [<c1007709>] ? mwait_idle+0x52/0x58 
Aug 23 12:04:06 1314081246 kernel:  [<c100198c>] ? cpu_idle+0x3a/0x52 
Aug 23 12:04:06 1314081246 kernel:  [<c1219d9a>] ? start_secondary+0x190/0x195 
Aug 23 12:04:06 1314081246 kernel: ---[ end trace 95ec5361035a3aba ]--- 
Aug 23 12:04:06 1314081246 kernel: ------------[ cut here ]------------ 
Aug 23 12:04:06 1314081246 kernel: WARNING: at net/sched/sch_hfsc.c:1427 hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc]() 
Aug 23 12:04:06 1314081246 kernel: Hardware name: Bridgeport 
Aug 23 12:04:06 1314081246 kernel: Modules linked in: xt_NOTRACK xt_multiport ipt_REDIRECT xt_tcpudp xt_mark xt_set ip_set nfnetlink iptable_raw iptable_filter iptable_mangle iptable_nat ip_tables cls_fw sch_sfq sch_hfsc arptable_filter arp_tables x_tables pppoe pppox ppp_generic slhc nf_nat_tftp nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_ftp nf_nat nf_conntrack_tftp nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_irc nf_conntrack_ftp nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 8021q 
Aug 23 12:04:06 1314081246 kernel: Pid: 0, comm: kworker/0:1 Tainted: G        W   2.6.39.2-1smp #7 
Aug 23 12:04:06 1314081246 kernel: Call Trace: 
Aug 23 12:04:06 1314081246 kernel:  [<c1026548>] warn_slowpath_common+0x65/0x7a 
Aug 23 12:04:06 1314081246 kernel:  [<f83803be>] ? hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc] 
Aug 23 12:04:06 1314081246 kernel:  [<c102656c>] warn_slowpath_null+0xf/0x13 
Aug 23 12:04:06 1314081246 kernel:  [<f83803be>] hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc] 
Aug 23 12:04:06 1314081246 kernel:  [<c11c01c2>] __qdisc_run+0x70/0xe4 
Aug 23 12:04:06 1314081246 kernel:  [<c11ac95d>] net_tx_action+0x9c/0xe6 
Aug 23 12:04:06 1314081246 kernel:  [<c102a936>] __do_softirq+0x6b/0xe5 
Aug 23 12:04:06 1314081246 kernel:  [<c102a8cb>] ? __local_bh_enable+0x68/0x68 
Aug 23 12:04:06 1314081246 kernel:  <IRQ>  [<c102a847>] ? irq_exit+0x32/0x3b 
Aug 23 12:04:06 1314081246 kernel:  [<c10149f2>] ? smp_apic_timer_interrupt+0x6e/0x7c 
Aug 23 12:04:06 1314081246 kernel:  [<c121e5b2>] ? apic_timer_interrupt+0x2a/0x30 
Aug 23 12:04:06 1314081246 kernel:  [<c1007709>] ? mwait_idle+0x52/0x58 
Aug 23 12:04:06 1314081246 kernel:  [<c100198c>] ? cpu_idle+0x3a/0x52 
Aug 23 12:04:06 1314081246 kernel:  [<c1219d9a>] ? start_secondary+0x190/0x195 
Aug 23 12:04:06 1314081246 kernel: ---[ end trace 95ec5361035a3abb ]--- 
Aug 23 12:04:06 1314081246 kernel: ------------[ cut here ]------------ 
Aug 23 12:04:06 1314081246 kernel: WARNING: at net/sched/sch_hfsc.c:1427 hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc]() 
Aug 23 12:04:06 1314081246 kernel: Hardware name: Bridgeport 
Aug 23 12:04:06 1314081246 kernel: Modules linked in: xt_NOTRACK xt_multiport ipt_REDIRECT xt_tcpudp xt_mark xt_set ip_set nfnetlink iptable_raw iptable_filter iptable_mangle iptable_nat ip_tables cls_fw sch_sfq sch_hfsc arptable_filter arp_tables x_tables pppoe pppox ppp_generic slhc nf_nat_tftp nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_ftp nf_nat nf_conntrack_tftp nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_irc nf_conntrack_ftp nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 8021q 
Aug 23 12:04:06 1314081246 kernel: Pid: 0, comm: kworker/0:1 Tainted: G        W   2.6.39.2-1smp #7 
Aug 23 12:04:06 1314081246 kernel: Call Trace: 
Aug 23 12:04:06 1314081246 kernel:  [<c1026548>] warn_slowpath_common+0x65/0x7a 
Aug 23 12:04:06 1314081246 kernel:  [<f83803be>] ? hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc] 
Aug 23 12:04:06 1314081246 kernel:  [<c102656c>] warn_slowpath_null+0xf/0x13 
Aug 23 12:04:06 1314081246 kernel:  [<f83803be>] hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc] 
Aug 23 12:04:06 1314081246 kernel:  [<c11c01c2>] __qdisc_run+0x70/0xe4 
Aug 23 12:04:06 1314081246 kernel:  [<c11ac95d>] net_tx_action+0x9c/0xe6 
Aug 23 12:04:06 1314081246 kernel:  [<c102a936>] __do_softirq+0x6b/0xe5 
Aug 23 12:04:06 1314081246 kernel:  [<c102a8cb>] ? __local_bh_enable+0x68/0x68 
Aug 23 12:04:06 1314081246 kernel:  <IRQ>  [<c102a847>] ? irq_exit+0x32/0x3b 
Aug 23 12:04:06 1314081246 kernel:  [<c10149f2>] ? smp_apic_timer_interrupt+0x6e/0x7c 
Aug 23 12:04:06 1314081246 kernel:  [<c121e5b2>] ? apic_timer_interrupt+0x2a/0x30 
Aug 23 12:04:06 1314081246 kernel:  [<c1007709>] ? mwait_idle+0x52/0x58 
Aug 23 12:04:06 1314081246 kernel:  [<c100198c>] ? cpu_idle+0x3a/0x52 
Aug 23 12:04:06 1314081246 kernel:  [<c1219d9a>] ? start_secondary+0x190/0x195 
Aug 23 12:04:06 1314081246 kernel: ---[ end trace 95ec5361035a3abc ]--- 
Aug 23 12:04:06 1314081246 kernel: ------------[ cut here ]------------ 
Aug 23 12:04:06 1314081246 kernel: WARNING: at net/sched/sch_hfsc.c:1427 hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc]() 
Aug 23 12:04:06 1314081246 kernel: Hardware name: Bridgeport 
Aug 23 12:04:06 1314081246 kernel: Modules linked in: xt_NOTRACK xt_multiport ipt_REDIRECT xt_tcpudp xt_mark xt_set ip_set nfnetlink iptable_raw iptable_filter iptable_mangle iptable_nat ip_tables cls_fw sch_sfq sch_hfsc arptable_filter arp_tables x_tables pppoe pppox ppp_generic slhc nf_nat_tftp nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_ftp nf_nat nf_conntrack_tftp nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_irc nf_conntrack_ftp nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 8021q 
Aug 23 12:04:06 1314081246 kernel: Pid: 0, comm: kworker/0:1 Tainted: G        W   2.6.39.2-1smp #7 
Aug 23 12:04:06 1314081246 kernel: Call Trace: 
Aug 23 12:04:06 1314081246 kernel:  [<c1026548>] warn_slowpath_common+0x65/0x7a 
Aug 23 12:04:06 1314081246 kernel:  [<f83803be>] ? hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc] 
Aug 23 12:04:06 1314081246 kernel:  [<c102656c>] warn_slowpath_null+0xf/0x13 
Aug 23 12:04:06 1314081246 kernel:  [<f83803be>] hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc] 
Aug 23 12:04:06 1314081246 kernel:  [<c11c01c2>] __qdisc_run+0x70/0xe4 
Aug 23 12:04:06 1314081246 kernel:  [<c11ac95d>] net_tx_action+0x9c/0xe6 
Aug 23 12:04:06 1314081246 kernel:  [<c102a936>] __do_softirq+0x6b/0xe5 
Aug 23 12:04:06 1314081246 kernel:  [<c102a8cb>] ? __local_bh_enable+0x68/0x68 
Aug 23 12:04:06 1314081246 kernel:  <IRQ>  [<c102a847>] ? irq_exit+0x32/0x3b 
Aug 23 12:04:06 1314081246 kernel:  [<c10149f2>] ? smp_apic_timer_interrupt+0x6e/0x7c 
Aug 23 12:04:06 1314081246 kernel:  [<c121e5b2>] ? apic_timer_interrupt+0x2a/0x30 
Aug 23 12:04:06 1314081246 kernel:  [<c1007709>] ? mwait_idle+0x52/0x58 
Aug 23 12:04:06 1314081246 kernel:  [<c100198c>] ? cpu_idle+0x3a/0x52 
Aug 23 12:04:06 1314081246 kernel:  [<c1219d9a>] ? start_secondary+0x190/0x195 
Aug 23 12:04:06 1314081246 kernel: ---[ end trace 95ec5361035a3abd ]--- 
Aug 23 12:04:06 1314081246 kernel: ------------[ cut here ]------------ 
Aug 23 12:04:06 1314081246 kernel: WARNING: at net/sched/sch_hfsc.c:1427 hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc]() 
Aug 23 12:04:06 1314081246 kernel: Hardware name: Bridgeport 
Aug 23 12:04:06 13140812

i have try to find in Google for this problem ...
i found that its a BUG...

http://www.spinics.net/lists/netfilt.../msg19181.html

I apply the patch according to the BUG solution..
but still the problem is not solve...

i check the dmesg also..
but its display

Code:

------------[ cut here ]------------
WARNING: at net/sched/sch_hfsc.c:1427 hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc]() Hardware name: Bridgeport Modules linked in: xt_NOTRACK xt_multiport ipt_REDIRECT xt_tcpudp xt_mark xt_set ip_set nfnetlink iptable_raw iptable_filter iptable_mangle iptable_nat ip_tables cls_fw sch_sfq sch_hfsc arptable_filter arp_tables x_tables pppoe pppox ppp_generic slhc nf_nat_tftp nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_ftp nf_nat nf_conntrack_tftp nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_irc nf_conntrack_ftp nf_conntrack_ipv4 nf_conntrack
nf_defrag_ipv4 8021q
Pid: 0, comm: kworker/0:1 Tainted: G        W   2.6.39.2-1smp #7
Call Trace:
  [<c1026548>] warn_slowpath_common+0x65/0x7a
  [<f83803be>] ? hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc]
  [<c102656c>] warn_slowpath_null+0xf/0x13
  [<f83803be>] hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc]
  [<c11c01c2>] __qdisc_run+0x70/0xe4
  [<c11ac95d>] net_tx_action+0x9c/0xe6
  [<c102a936>] __do_softirq+0x6b/0xe5
  [<c102a8cb>] ? __local_bh_enable+0x68/0x68 <IRQ>  [<c102a847>] ? irq_exit+0x32/0x3b
  [<c10149f2>] ? smp_apic_timer_interrupt+0x6e/0x7c
  [<c121e5b2>] ? apic_timer_interrupt+0x2a/0x30
  [<c1007709>] ? mwait_idle+0x52/0x58
  [<c100198c>] ? cpu_idle+0x3a/0x52
  [<c1219d9a>] ? start_secondary+0x190/0x195 ---[ end trace 95ec5361035a371e ]--- ------------[ cut here ]------------
WARNING: at net/sched/sch_hfsc.c:1427 hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc]() Hardware name: Bridgeport Modules linked in: xt_NOTRACK xt_multiport ipt_REDIRECT xt_tcpudp xt_mark xt_set ip_set nfnetlink iptable_raw iptable_filter iptable_mangle iptable_nat ip_tables cls_fw sch_sfq sch_hfsc arptable_filter arp_tables x_tables pppoe pppox ppp_generic slhc nf_nat_tftp nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_ftp nf_nat nf_conntrack_tftp nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_irc nf_conntrack_ftp nf_conntrack_ipv4 nf_conntrack
nf_defrag_ipv4 8021q
Pid: 4195, comm: java Tainted: G        W   2.6.39.2-1smp #7
Call Trace:
  [<c1026548>] warn_slowpath_common+0x65/0x7a
  [<f83803be>] ? hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc]
  [<c102656c>] warn_slowpath_null+0xf/0x13
  [<f83803be>] hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc]
  [<c11c01c2>] __qdisc_run+0x70/0xe4
  [<c11ac95d>] net_tx_action+0x9c/0xe6
  [<c102a936>] __do_softirq+0x6b/0xe5
  [<c102a8cb>] ? __local_bh_enable+0x68/0x68 <IRQ>  [<c102a847>] ? irq_exit+0x32/0x3b
  [<c10149f2>] ? smp_apic_timer_interrupt+0x6e/0x7c
  [<c121e5b2>] ? apic_timer_interrupt+0x2a/0x30
  [<c121e190>] ? resume_userspace+0x14/0x14 ---[ end trace 95ec5361035a371f ]--- ------------[ cut here ]------------
WARNING: at net/sched/sch_hfsc.c:1427 hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc]() Hardware name: Bridgeport Modules linked in: xt_NOTRACK xt_multiport ipt_REDIRECT xt_tcpudp xt_mark xt_set ip_set nfnetlink iptable_raw iptable_filter iptable_mangle iptable_nat ip_tables cls_fw sch_sfq sch_hfsc arptable_filter arp_tables x_tables pppoe pppox ppp_generic slhc nf_nat_tftp nf_nat_pptp nf_nat_proto_gre nf_nat_irc nf_nat_ftp nf_nat nf_conntrack_tftp nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_irc nf_conntrack_ftp nf_conntrack_ipv4 nf_conntrack
nf_defrag_ipv4 8021q
Pid: 0, comm: kworker/0:1 Tainted: G        W   2.6.39.2-1smp #7
Call Trace:
  [<c1026548>] warn_slowpath_common+0x65/0x7a
  [<f83803be>] ? hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc]
  [<c102656c>] warn_slowpath_null+0xf/0x13
  [<f83803be>] hfsc_dequeue+0x1aa/0x2c2 [sch_hfsc]
  [<c11c01c2>] __qdisc_run+0x70/0xe4
  [<c11ac95d>] net_tx_action+0x9c/0xe6
  [<c102a936>] __do_softirq+0x6b/0xe5
  [<c102a8cb>] ? __local_bh_enable+0x68/0x68 <IRQ>  [<c102a847>] ? irq_exit+0x32/0x3b
  [<c10149f2>] ? smp_apic_timer_interrupt+0x6e/0x7c
  [<c121e5b2>] ? apic_timer_interrupt+0x2a/0x30
  [<c1007709>] ? mwait_idle+0x52/0x58
  [<c100198c>] ? cpu_idle+0x3a/0x52
  [<c1219d9a>] ? start_secondary+0x190/0x195 ---[ end trace

Please tell me how to solve this problem...