Another flavor of "NMI Watchdog detected LOCKUP" due to writer starvation on tasklist_lock

Solution Unverified - Updated -

Issue

  • The system panic's with follow message.
NMI Watchdog detected LOCKUP on CPU 0
CPU 0 
Modules linked in: iptable_filter ip_tables x_tables autofs4 hidp rfcomm l2cap bluetooth lockd sunrpc be2iscsi ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp bnx2i cnic uio cxgb3i libcxgbi cxgb3 8021q libiscsi_tcp libiscsi2 scsi_transport_iscsi2 scsi_transport_iscsi dm_round_robin dm_multipath scsi_dh video backlight sbs power_meter i2c_ec dell_wmi wmi button battery asus_acpi acpi_memhotplug ac ipv6 xfrm_nalgo crypto_api parport_pc lp parport sg pcspkr serio_raw bnx2 amd64_edac_mod i2c_piix4 edac_mc k10temp hwmon i2c_core e1000e hpilo tpm_tis tpm tpm_bios dm_raid45 dm_message dm_region_hash dm_mem_cache dm_snapshot dm_zero dm_mirror dm_log dm_mod usb_storage qla2xxx scsi_transport_fc shpchp cciss sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd
Pid: 6850, comm: ois_server_watc Not tainted 2.6.18-371.el5 #1
RIP: 0010:[<ffffffff80062191>]  [<ffffffff80062191>] __write_lock_failed+0x9/0x20
RSP: 0018:ffff8108216a3e28  EFLAGS: 00000083
RAX: ffff8108220d17b0 RBX: 0000000000000000 RCX: 0000000000000189
RDX: 000857decd6b064f RSI: 0000000000000003 RDI: ffffffff8044de80
RBP: 0000000000000000 R08: 000000000000000c R09: 0000000000000034
R10: ffff8101cdf1fb40 R11: 0000000000000296 R12: ffff8101f7538080
R13: ffff8101cdf1fb40 R14: 0000000000000000 R15: ffff81042d3c6800
FS:  00002ab72e9d56e0(0000) GS:ffffffff80436000(0000) knlGS:00000000ee8ecb90
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 000000001507a298 CR3: 000000041d0e7000 CR4: 00000000000006e0
Process ois_server_watc (pid: 6850, threadinfo ffff8108216a2000, task ffff8108220d17b0)
Stack:  ffffffff80064b93 ffffffff800205d8 00002ab72e9d5770 0000000000000000
 ffff8108216a3f58 00007fff15531830 0000000001200011 0000000000000000
 ffff8101f7538080 ffff8101cdf1fb40 ffff81015e5c3af0 ffff81015e5c3b10
Call Trace:
 [<ffffffff80064b93>] _write_lock_irq+0xf/0x10
 [<ffffffff800205d8>] copy_process+0x101b/0x1636
 [<ffffffff8003158a>] do_fork+0x69/0x1c1
 [<ffffffff8005d29e>] tracesys+0xd5/0xdf
 [<ffffffff8005d437>] ptregscall_common+0x67/0xac

Environment

  • Red Hat Enterprise Linux 5

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