Why system crash with 'established_get_next+71'

Solution Unverified - Updated -

Issue

  • System crash with RIP trace - established_get_next+xx , below are the detail traces;
last sysfs file: /sys/module/ipv6/initstate
CPU 10 
Modules linked in: ipmi_watchdog ipmi_devintf mptctl mptbase sg 8021q garp stp llc pcc_cpufreq ipv6 ext3 jbd power_meter hpilo hpwdt sfc_aoe(U) onload(U) sfc_char(U) sfc_resource(U) sfc_affinity(U) sfc(U) i2c_algo_bit i2c_core ptp pps_core mdio microcode serio_raw iTCO_wdt iTCO_vendor_support ioatdma dca shpchp ext4 jbd2 mbcache sd_mod crc_t10dif hpsa pata_acpi ata_generic ata_piix dm_mirror dm_region_hash dm_log dm_mod [last unloaded: scsi_wait_scan]

Pid: 26803, comm: netstat Not tainted 2.6.32-358.23.2.el6.x86_64 #1 HP ProLiant DL380p Gen8
RIP: 0010:[<ffffffff8149f967>]  [<ffffffff8149f967>] established_get_next+0x47/0x160
RSP: 0018:ffff880ffc9c1dc8  EFLAGS: 00010246
RAX: 00c0000000080000 RBX: ffff880ff231e580 RCX: ffffc90006062000
RDX: 0000000000000002 RSI: ffff880ff885ce80 RDI: ffffc90006067408
RBP: ffff880ffc9c1dd8 R08: ffffffff811a5260 R09: 30303a3330203030
R10: 3020433739303030 R11: 0000000000000246 R12: ffffffff81b165c0
R13: ffff880ff231e580 R14: 0000000000000400 R15: ffff880ffc9c1e60
FS:  00007f4d5fa6a7a0(0000) GS:ffff88085c440000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000003981729110 CR3: 0000000ffb4dd000 CR4: 00000000000407e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process netstat (pid: 26803, threadinfo ffff880ffc9c0000, task ffff880fe6d37540)
Stack:
 0000000000000001 ffff88103282ff40 ffff880ffc9c1e08 ffffffff8149fd30
<d> ffff880ffc9c1e18 ffff8810321fca40 ffff88103282ff40 000000000000003a
<d> ffff880ffc9c1e18 ffffffff8149fd79 ffff880ffc9c1e98 ffffffff811a52f6
Call Trace:
 [<ffffffff8149fd30>] tcp_get_idx+0x90/0xa0
 [<ffffffff8149fd79>] tcp_seq_start+0x39/0x40
 [<ffffffff811a52f6>] seq_read+0x96/0x400
 [<ffffffff811e99ae>] proc_reg_read+0x7e/0xc0
 [<ffffffff81181ac5>] vfs_read+0xb5/0x1a0
 [<ffffffff81181c01>] sys_read+0x51/0x90
 [<ffffffff810dc685>] ? __audit_syscall_exit+0x265/0x290
 [<ffffffff8100b072>] system_call_fastpath+0x16/0x1b
Code: 84 27 01 00 00 48 8b 06 a8 01 75 38 48 85 c0 74 33 a8 01 75 2f 0f b7 53 08 eb 10 66 0f 1f 84 00 00 00 00 00 48 8b 00 a8 01 75 19 <66> 39 50 18 75 f3 4c 3b 60 38 75 ed 5b 41 5c c9 c3 0f 1f 84 00 
RIP  [<ffffffff8149f967>] established_get_next+0x47/0x160
 RSP <ffff880ffc9c1dc8>

Environment

  • Red Hat Enterprise Linux 6.X
  • sfc third party modules.

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