Bug 173021 - BUG: unable to handle kernel NULL pointer dereference at (null)
Summary: BUG: unable to handle kernel NULL pointer dereference at (null)
Status: NEW
Alias: None
Product: Other
Classification: Unclassified
Component: Modules (show other bugs)
Hardware: Intel Linux
: P1 normal
Assignee: other_modules
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-09-28 03:46 UTC by Dang Zhiqiang
Modified: 2016-09-28 03:46 UTC (History)
0 users

See Also:
Kernel Version: 2.6.32-220.7.1
Subsystem:
Regression: No
Bisected commit-id:

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Description Dang Zhiqiang 2016-09-28 03:46:48 UTC 
kernel panic:

u32 classifier
    Performance counters on
    input device check on 
    Actions configured 
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffffa01dc025>] u32_get+0x25/0x90 [cls_u32]
PGD 185f661067 PUD 18606ff067 PMD 0 
Oops: 0000 [#1] SMP 
last sysfs file: /sys/devices/system/cpu/cpu23/topology/thread_siblings
CPU 20 
Modules linked in: act_police cls_u32 sch_ingress sch_htb ip6_tables iptable_filter ip_tables ebtable_nat ebtables stp llc openvswitch(U) libcrc32c ttm vhost_net macvtap macvlan tun kvm_intel kvm wmi acpi_pad igb hwmon dca i2c_algo_bit sg microcode i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support shpchp ext4 mbcache jbd2 sd_mod crc_t10dif isci libsas scsi_transport_sas megaraid_sas pata_acpi ata_generic ata_piix libata scsi_mod dm_mirror dm_region_hash dm_log dm_mod [last unloaded: scsi_wait_scan]

Pid: 32718, comm: tc Not tainted 2.6.32-220.7.1.el6.x86_64 #1 Inspur NF5270M3/NF5270M3
RIP: 0010:[<ffffffffa01dc025>]  [<ffffffffa01dc025>] u32_get+0x25/0x90 [cls_u32]
RSP: 0018:ffff880c6026b918  EFLAGS: 00010207
RAX: 0000000000000000 RBX: ffff880c5ec22640 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff880c5ec22640
RBP: ffff880c6026b918 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000769 R11: 0000000000001000 R12: ffff880c60341f80
R13: ffff880c60341f5c R14: ffff880c60341ec0 R15: ffff88185d015010
FS:  00007fa60f0d6720(0000) GS:ffff880caa700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000011e71c9000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process tc (pid: 32718, threadinfo ffff880c6026a000, task ffff880c5ee57810)
Stack:
 ffff880c6026ba28 ffffffff81423e8d 0000000000000000 0000000000000000
<0> 0000000000000000 000000000000000c 000000005f59e980 ffff88185d015024
<0> 0031000000000081 ffff88185f59e980 0000000000000000 ffffffffa00e2240
Call Trace:
 [<ffffffff81423e8d>] tc_ctl_tfilter+0x36d/0x770
 [<ffffffff8140f8c0>] rtnetlink_rcv_msg+0x1e0/0x220
 [<ffffffff8140f6e0>] ? rtnetlink_rcv_msg+0x0/0x220
 [<ffffffff8142a409>] netlink_rcv_skb+0xa9/0xd0
 [<ffffffff8140f6c5>] rtnetlink_rcv+0x25/0x40
 [<ffffffff8142a066>] netlink_unicast+0x2e6/0x300
 [<ffffffff8142a9f0>] netlink_sendmsg+0x200/0x2e0
 [<ffffffff813ef2da>] sock_sendmsg+0x11a/0x150
 [<ffffffff813ef8c3>] ? sock_recvmsg+0x133/0x160
 [<ffffffff81088e90>] ? autoremove_wake_function+0x0/0x40
 [<ffffffff8111d760>] ? __lru_cache_add+0x40/0x90
 [<ffffffff8111d7d1>] ? lru_cache_add_lru+0x21/0x40
 [<ffffffff8113a9bd>] ? page_add_new_anon_rmap+0x7d/0xd0
 [<ffffffff813eedc4>] ? move_addr_to_kernel+0x64/0x70
 [<ffffffff813ef776>] __sys_sendmsg+0x406/0x420
 [<ffffffff81041fa4>] ? __do_page_fault+0x1e4/0x480
 [<ffffffff813efbd9>] ? sys_sendto+0x139/0x190
 [<ffffffff813f0429>] sys_sendmsg+0x49/0x90
 [<ffffffff8100b0b2>] system_call_fastpath+0x16/0x1b
Code: <48> 8b 12 48 85 d2 75 f3 31 c0 c9 c3 48 8b 57 08 48 85 d2 74 f3 f7 
RIP  [<ffffffffa01dc025>] u32_get+0x25/0x90 [cls_u32]
 RSP <ffff880c6026b918>
CR2: 0000000000000000
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