BUG: soft lockup - CPU#2 stuck for 11s! [nfsd:2775]

Pid: 2775, comm: nfsd Not tainted (2.6.24.2-fwsh-byte #2)
EIP: 0060:[<c0140967>] EFLAGS: 00000286 CPU: 2
EIP is at find_get_pages_contig+0x67/0x73
EAX: 00000000 EBX: 00000002 ECX: c235c8e0 EDX: c235c8e0
ESI: 00000110 EDI: d7f2c69c EBP: 00000002 ESP: f604fc6c
 DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
CR0: 8005003b CR2: b7fb8000 CR3: 355be000 CR4: 000006f0
DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
DR6: ffff0ff0 DR7: 00000400
 [<c017c49c>] __generic_file_splice_read+0xa2/0x41e
 [<c0113b11>] sched_slice+0x15/0x6f
 [<c0131291>] getnstimeofday+0x31/0x105
 [<c0134301>] clockevents_program_event+0xbf/0x134
 [<c012ef49>] ktime_get_ts+0x15/0x47
 [<c01231ea>] run_timer_softirq+0x30/0x184
 [<c012a893>] __rcu_process_callbacks+0x76/0xbb
 [<c011f979>] tasklet_action+0x53/0x93
 [<c011f754>] __do_softirq+0xba/0xcf
 [<c010e20e>] smp_apic_timer_interrupt+0x2c/0x35
 [<c01032e0>] apic_timer_interrupt+0x28/0x30
 [<c017c88d>] generic_file_splice_read+0x75/0xc9
 [<c017d083>] do_splice_to+0x6e/0x90
 [<c017d144>] splice_direct_to_actor+0x9f/0x166
 [<f8f32f72>] nfsd_direct_splice_actor+0x0/0xa [nfsd]
 [<c017c818>] generic_file_splice_read+0x0/0xc9
 [<f8f33309>] nfsd_vfs_read+0x38d/0x3b1 [nfsd]
 [<f8f313b8>] nfsd_acceptable+0x0/0xd1 [nfsd]
 [<c016014f>] dentry_open+0x34/0x64
 [<f8f3373c>] nfsd_read+0xee/0xfb [nfsd]
 [<f8f39b8b>] nfsd3_proc_read+0xfe/0x186 [nfsd]
 [<f8f3b4cb>] nfs3svc_decode_readargs+0x0/0xeb [nfsd]
 [<f8f2f855>] nfsd_dispatch+0xc5/0x1ac [nfsd]
 [<c0445ab2>] svcauth_unix_set_client+0x116/0x165
 [<c0441ad1>] svc_process+0x4e9/0x6b4
 [<c01168e2>] default_wake_function+0x0/0x8
 [<f8f2f63d>] nfsd+0x16a/0x290 [nfsd]
 [<f8f2f4d3>] nfsd+0x0/0x290 [nfsd]
 [<c0103463>] kernel_thread_helper+0x7/0x10
 =======================

BUG: soft lockup - CPU#2 stuck for 11s! [nfsd:2775]

Pid: 2775, comm: nfsd Not tainted (2.6.24.2-fwsh-byte #2)
EIP: 0060:[<c0140967>] EFLAGS: 00000286 CPU: 2
EIP is at find_get_pages_contig+0x67/0x73
EAX: 00000000 EBX: 00000002 ECX: c235c8e0 EDX: c235c8e0
ESI: 00000110 EDI: d7f2c69c EBP: 00000002 ESP: f604fc6c
 DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
CR0: 8005003b CR2: b7fb8000 CR3: 355be000 CR4: 000006f0
DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
DR6: ffff0ff0 DR7: 00000400
 [<c017c49c>] __generic_file_splice_read+0xa2/0x41e
 [<c0113b11>] sched_slice+0x15/0x6f
 [<c0131291>] getnstimeofday+0x31/0x105
 [<c0134301>] clockevents_program_event+0xbf/0x134
 [<c012ef49>] ktime_get_ts+0x15/0x47
 [<c01231ea>] run_timer_softirq+0x30/0x184
 [<c012a893>] __rcu_process_callbacks+0x76/0xbb
 [<c011f979>] tasklet_action+0x53/0x93
 [<c011f754>] __do_softirq+0xba/0xcf
 [<c010e20e>] smp_apic_timer_interrupt+0x2c/0x35
 [<c01032e0>] apic_timer_interrupt+0x28/0x30
 [<c017c88d>] generic_file_splice_read+0x75/0xc9
 [<c017d083>] do_splice_to+0x6e/0x90
 [<c017d144>] splice_direct_to_actor+0x9f/0x166
 [<f8f32f72>] nfsd_direct_splice_actor+0x0/0xa [nfsd]
 [<c017c818>] generic_file_splice_read+0x0/0xc9
 [<f8f33309>] nfsd_vfs_read+0x38d/0x3b1 [nfsd]
 [<f8f313b8>] nfsd_acceptable+0x0/0xd1 [nfsd]
 [<c016014f>] dentry_open+0x34/0x64
 [<f8f3373c>] nfsd_read+0xee/0xfb [nfsd]
 [<f8f39b8b>] nfsd3_proc_read+0xfe/0x186 [nfsd]
 [<f8f3b4cb>] nfs3svc_decode_readargs+0x0/0xeb [nfsd]
 [<f8f2f855>] nfsd_dispatch+0xc5/0x1ac [nfsd]
 [<c0445ab2>] svcauth_unix_set_client+0x116/0x165
 [<c0441ad1>] svc_process+0x4e9/0x6b4
 [<c01168e2>] default_wake_function+0x0/0x8
 [<f8f2f63d>] nfsd+0x16a/0x290 [nfsd]
 [<f8f2f4d3>] nfsd+0x0/0x290 [nfsd]
 [<c0103463>] kernel_thread_helper+0x7/0x10
 =======================