Kernel panic due to list corruption in the dentry slab cache.

Issue

• Kernel panics with list corruption in the dentry cache:

list_del corruption. next->prev should be ffff8119d4532000, but was 0000000000000000
----------- [cut here ] --------- [please bite here ] ---------
Kernel BUG at lib/list_debug.c:70
invalid opcode: 0000 [1] SMP 
last sysfs file: /class/scsi_host/host2/proc_name
CPU 6 
Modules linked in: nls_utf8 cifs mpt2sas scsi_transport_sas mptctl mptbase vxodm(PFU) vxgms(PU) vxglm(PU) vxfen(PU) gab(PU) llt(PU) autofs4 dmpalua(PU) dmpjbod(PU) dmpap(PU) dmpaa(PU) vxspec(PFU) vxio(PFU) vxdmp(PU) lockd sunrpc cpufreq_ondemand acpi_cpufreq freq_table bonding ipv6 xfrm_nalgo crypto_api vxportal(PFU) fdd(PFU) vxfs(PU) dm_multipath scsi_dh video backlight sbs power_meter hwmon i2c_ec dell_wmi wmi button battery asus_acpi acpi_memhotplug ac parport_pc lp parport joydev sg fnic libfcoe enic(U) libfc i2c_i801 i2c_core pcspkr scsi_transport_fc 8021q dm_raid45 dm_message dm_region_hash dm_mem_cache dm_snapshot dm_zero dm_mirror dm_log dm_mod usb_storage shpchp megaraid_sas sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd
Pid: 6511, comm: monitor Tainted: PF  M  2.6.18-194.26.1.el5 #1
RIP: 0010:[<ffffffff80154438>]  [<ffffffff80154438>] list_del+0x48/0x71
RSP: 0018:ffff811f9ad69e38  EFLAGS: 00010086
RAX: 0000000000000058 RBX: ffff8119d4532000 RCX: ffffffff80311da8
RDX: ffffffff80311da8 RSI: 0000000000000000 RDI: ffffffff80311da0
RBP: ffff8119d4532000 R08: ffffffff80311da8 R09: 000000000000003e
R10: ffff811f9ad69ad8 R11: 0000000000000080 R12: ffff8101e1ec4000
R13: ffff8101e1c99c40 R14: 0000000000000024 R15: ffff8101e1ca30c0
FS:  00002b53ddf14dd0(0000) GS:ffff8101e1ecabc0(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000037f52d4bc0 CR3: 0000001f64003000 CR4: 00000000000006e0
Process monitor (pid: 6511, threadinfo ffff811f9ad68000, task ffff813008dab080)
Stack:  0000000000000018 ffffffff8005c130 000000d0000000d0 0000000000000246
 00000000000000d0 ffff8101e1ca30c0 0000000000000000 00007fffee94b160
 000000001df990b0 ffffffff8000ac9c 0000000000000000 ffff811f9ad69ef8
Call Trace:
 [<ffffffff8005c130>] cache_alloc_refill+0xf1/0x186
 [<ffffffff8000ac9c>] kmem_cache_alloc+0x6c/0x76
 [<ffffffff800227d4>] d_alloc+0x24/0x1a9
 [<ffffffff802265b1>] sock_attach_fd+0x56/0xfd
 [<ffffffff80054a37>] sys_socketpair+0xc6/0x1cd
 [<ffffffff8005d28d>] tracesys+0xd5/0xe0


Code: 0f 0b 68 93 bb 2b 80 c2 46 00 48 8b 13 48 8b 43 08 48 89 42 
RIP  [<ffffffff80154438>] list_del+0x48/0x71
 RSP <ffff811f9ad69e38>