BUG: soft lockup - CPU#3 stuck for 11s! [nfsd:2643] Pid: 2643, comm: nfsd EIP: 0060:[] CPU: 3 EIP is at __generic_file_splice_read+0x12c/0x418 EFLAGS: 00000206 Not tainted (2.6.23.17-fwsh-byte #3) EAX: f6e9dddc EBX: 00001000 ECX: 00000001 EDX: 00000000 ESI: 00000000 EDI: f6e9dcd0 EBP: 00000095 DS: 007b ES: 007b FS: 00d8 CR0: 8005003b CR2: b7e72cc0 CR3: 00622000 CR4: 000006f0 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 DR6: ffff0ff0 DR7: 00000400 [] __check_preempt_curr_fair+0x4b/0x7d [] entity_tick+0x47/0x54 [] getnstimeofday+0x37/0x111 [] clockevents_program_event+0xac/0xcc [] run_timer_softirq+0x30/0x184 [] hrtimer_interrupt+0x132/0x1c4 [] __do_softirq+0xba/0xcf [] smp_apic_timer_interrupt+0x2c/0x35 [] apic_timer_interrupt+0x28/0x30 [] generic_file_splice_read+0x81/0xd5 [] do_splice_to+0x75/0x97 [] splice_direct_to_actor+0x9f/0x166 [] nfsd_acceptable+0x0/0xd1 [nfsd] [] nfsd_direct_splice_actor+0x0/0xa [nfsd] [] nfsd_vfs_read+0x399/0x3bd [nfsd] [] dentry_open+0x34/0x64 [] nfsd_read+0xee/0xfb [nfsd] [] nfsd3_proc_read+0xfe/0x186 [nfsd] [] nfs3svc_decode_readargs+0x0/0xeb [nfsd] [] nfsd_dispatch+0xc5/0x1ca [nfsd] [] svcauth_unix_set_client+0x116/0x165 [] svc_process+0x4fb/0x6d4 [] default_wake_function+0x0/0xc [] nfsd+0x16a/0x282 [nfsd] [] nfsd+0x0/0x282 [nfsd] [] kernel_thread_helper+0x7/0x10 ======================= Pid: 2643, comm: nfsd EIP: 0060:[] CPU: 3 EIP is at __generic_file_splice_read+0xdf/0x418 EFLAGS: 00000206 Not tainted (2.6.23.17-fwsh-byte #3) EAX: 00000095 EBX: f6e9de50 ECX: 00000001 EDX: 00000000 ESI: 00000001 EDI: f6e9dcd0 EBP: 00000096 DS: 007b ES: 007b FS: 00d8 CR0: 8005003b CR2: b7e72cc0 CR3: 00622000 CR4: 000006f0 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 DR6: ffff0ff0 DR7: 00000400 [] __check_preempt_curr_fair+0x4b/0x7d [] entity_tick+0x47/0x54 [] getnstimeofday+0x37/0x111 [] clockevents_program_event+0xac/0xcc [] run_timer_softirq+0x30/0x184 [] hrtimer_interrupt+0x132/0x1c4 [] __do_softirq+0xba/0xcf [] smp_apic_timer_interrupt+0x2c/0x35 [] apic_timer_interrupt+0x28/0x30 [] find_inode_fast+0x26/0x46 [] generic_file_splice_read+0x81/0xd5 [] do_splice_to+0x75/0x97 [] splice_direct_to_actor+0x9f/0x166 [] nfsd_acceptable+0x0/0xd1 [nfsd] [] nfsd_direct_splice_actor+0x0/0xa [nfsd] [] nfsd_vfs_read+0x399/0x3bd [nfsd] [] dentry_open+0x34/0x64 [] nfsd_read+0xee/0xfb [nfsd] [] nfsd3_proc_read+0xfe/0x186 [nfsd] [] nfs3svc_decode_readargs+0x0/0xeb [nfsd] [] nfsd_dispatch+0xc5/0x1ca [nfsd] [] svcauth_unix_set_client+0x116/0x165 [] svc_process+0x4fb/0x6d4 [] default_wake_function+0x0/0xc [] nfsd+0x16a/0x282 [nfsd] [] nfsd+0x0/0x282 [nfsd] [] kernel_thread_helper+0x7/0x10 =======================