Dear experts
I install kernel 4.4.70-rt83 in my environment, and run QEMU-KVM &
OVS-DPDK on my server.
After a kernel warning, I found that all of the process, such as sshd,
has no response. The monitor cannot displayed. All process looks like has been
hanged. But the server could be ping.
Following is the log of the kernel warning
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
854 <3>Aug 18 11:40:36 node-15 kernel: [222633.430875] kvm [2042203]: vcpu0
unhandled rdmsr: 0x606
855 <3>Aug 18 11:40:36 node-15 kernel: [222633.494780] kvm [2042203]: vcpu0
unhandled rdmsr: 0x34
856 <3>Aug 18 11:41:22 node-15 kernel: [222679.084867] kvm [2042166]: vcpu0
unhandled rdmsr: 0x606
857 <3>Aug 18 11:41:22 node-15 kernel: [222679.148727] kvm [2042166]: vcpu0
unhandled rdmsr: 0x34
858 <4>Aug 22 13:44:21 node-15 kernel: [575621.666498] ------------[ cut here
]------------
859 <4>Aug 22 13:44:21 node-15 kernel: [575621.666518] WARNING: CPU: 34 PID:
1419064 at mm/page_counter.c:26 page_counter_cancel+0x34/0x40()
860 <4>Aug 22 13:44:21 node-15 kernel: [575621.666521] Modules linked in:
xt_set ip_set_hash_net ip_set xt_mac xt_physdev ip6table_raw ip6table_mangle
iptable_nat nf_nat_ipv4 nf_nat xt_con nmark iptable_mangle 8021q garp mrp
ebtable_filter ebtables ip6table_filter ip6_tables vhost_net vhost macvtap
macvlan xt_tcpudp xt_conntrack iptable_raw xt_CT xt_comment iptable_filte r
xt_multiport igb_uio(O) uio openvswitch intel_rapl iosf_mbi intel_powerclamp
coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul
ghash_clmulni_intel aesni_intel aes_x86_64 glue_helper lrw ablk_helper
cryptd input_leds led_class joydev mei_me mei lpc_ich sb_edac mfd_core
edac_core shpchp ipmi_devintf ipmi_si ipmi_msghandler tpm_tis acpi_pad
nf_conntrack_ ipv6 nf_defrag_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4
ip_tables x_tables raid1 mpt3sas raid_class scsi_transport_sas
861 <4>Aug 22 13:44:21 node-15 kernel: [575621.666579] CPU: 34 PID: 1419064
Comm: ruby-mri Tainted: G O 4.4.70-thinkcloud-nfv #1
862 <4>Aug 22 13:44:21 node-15 kernel: [575621.666581] Hardware name: ZTE
R5300 G3/SGLMA, BIOS UBF09.01.09_SVN65700 12/14/2016
863 <4>Aug 22 13:44:21 node-15 kernel: [575621.666585] 0000000000000000
ffff8801341f3b90 ffffffff814093de 0000000000000000
864 <4>Aug 22 13:44:21 node-15 kernel: [575621.666587] ffffffff81caec1c
ffff8801341f3bc8 ffffffff810615d6 ffff8801897acce0
865 <4>Aug 22 13:44:21 node-15 kernel: [575621.666589] 000000000000000a
ffff8801897acc00 ffff883fc6fcb8e0 ffff883fc6fcb800
866 <4>Aug 22 13:44:21 node-15 kernel: [575621.666590] Call Trace:
867 <4>Aug 22 13:44:21 node-15 kernel: [575621.666601] [<ffffffff814093de>]
dump_stack+0x65/0x87
868 <4>Aug 22 13:44:21 node-15 kernel: [575621.666609] [<ffffffff810615d6>]
warn_slowpath_common+0x86/0xe0
869 <4>Aug 22 13:44:21 node-15 kernel: [575621.666612] [<ffffffff810616ea>]
warn_slowpath_null+0x1a/0x30
870 <4>Aug 22 13:44:21 node-15 kernel: [575621.666616] [<ffffffff811a15c4>]
page_counter_cancel+0x34/0x40
871 <4>Aug 22 13:44:21 node-15 kernel: [575621.666619] [<ffffffff811a16c2>]
page_counter_uncharge+0x22/0x30
872 <4>Aug 22 13:44:21 node-15 kernel: [575621.666622] [<ffffffff811a35db>]
drain_stock.isra.39+0x3b/0xe0
873 <4>Aug 22 13:44:21 node-15 kernel: [575621.666624] [<ffffffff811a3bea>]
try_charge+0x3ca/0x720
874 <4>Aug 22 13:44:21 node-15 kernel: [575621.666629] [<ffffffff81085687>] ?
preempt_count_add+0x47/0xc0
875 <4>Aug 22 13:44:21 node-15 kernel: [575621.666634] [<ffffffff811a7ba3>]
mem_cgroup_try_charge+0x63/0x100
876 <4>Aug 22 13:44:21 node-15 kernel: [575621.666640] [<ffffffff8117477b>]
wp_page_copy.isra.63+0x14b/0x500
877 <4>Aug 22 13:44:21 node-15 kernel: [575621.666643] [<ffffffff811760fe>]
do_wp_page+0x8e/0x450
878 <4>Aug 22 13:44:21 node-15 kernel: [575621.666647] [<ffffffff8117814b>]
handle_mm_fault+0xd7b/0x1380
879 <4>Aug 22 13:44:21 node-15 kernel: [575621.666656] [<ffffffff81a98c2a>] ?
_raw_spin_lock_irqsave+0x2a/0x50
880 <4>Aug 22 13:44:21 node-15 kernel: [575621.666661] [<ffffffff810a2d88>] ?
__try_to_take_rt_mutex+0x108/0x160
881 <4>Aug 22 13:44:21 node-15 kernel: [575621.666664] [<ffffffff81a98c70>] ?
_raw_spin_unlock_irqrestore+0x20/0x60
882 <4>Aug 22 13:44:21 node-15 kernel: [575621.666667] [<ffffffff81a975e0>] ?
rt_mutex_trylock+0x80/0xc0
883 <4>Aug 22 13:44:21 node-15 kernel: [575621.666673] [<ffffffff8104efaf>]
__do_page_fault+0x16f/0x4d0
884 <4>Aug 22 13:44:21 node-15 kernel: [575621.666676] [<ffffffff8104f342>]
do_page_fault+0x32/0x90
885 <4>Aug 22 13:44:21 node-15 kernel: [575621.666681] [<ffffffff811463cd>] ?
context_tracking_exit+0x1d/0x30
886 <4>Aug 22 13:44:21 node-15 kernel: [575621.666685] [<ffffffff81a9b298>]
page_fault+0x28/0x30
887 <4>Aug 22 13:44:21 node-15 kernel: [575621.666688] ---[ end trace
0000000000000002 ]---
888 <7>Aug 22 13:52:14 node-15 kernel: [576094.285955] kvm: zapping shadow
pages for mmio generation wraparound
889 <7>Aug 22 13:52:14 node-15 kernel: [576094.362130] kvm: zapping shadow
pages for mmio generation wraparound
890 <3>Aug 22 13:52:21 node-15 kernel: [576101.551233] kvm [1424015]: vcpu3
unhandled rdmsr: 0x606
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
I find there is a discuss at:
https://lkml.org/lkml/2015/12/3/460
Whether it is the same problem as above? Is it a known issue , which
has not been fixed in kernel 4.4.x?
Thanks
Feng
