Hi Guys, I hit this warning with current linus + for-next branch of wq.git, running Fedora 17 on VMWare linux guest. [89449.738642] ------------[ cut here ]------------ [89453.060422] WARNING: at kernel/workqueue.c:1066 try_to_grab_pending+0x38/0x112() [89454.328625] Hardware name: VMware Virtual Platform [89454.328635] Modules linked in: vmwgfx ttm drm [89455.530576] Pid: 327, comm: jbd2/sda3-8 Not tainted 3.6.0-rc5+ #27 [89455.530582] Call Trace: [89455.530730] [] warn_slowpath_common+0x77/0x8c [89456.608291] [] ? try_to_grab_pending+0x38/0x112 [89456.608306] [] ? try_to_grab_pending+0x38/0x112 [89456.608314] [] warn_slowpath_null+0x1d/0x1f [89456.608320] [] try_to_grab_pending+0x38/0x112 [89456.608325] [] mod_delayed_work_on+0x1f/0x51 [89456.608331] [] mod_delayed_work+0x17/0x19 [89457.699645] [] linkwatch_schedule_work+0x57/0x66 [89457.699656] [] linkwatch_fire_event+0x86/0x8b [89458.723637] [] netif_carrier_on+0x22/0x33 [89458.764724] [] vmxnet3_check_link+0x7d/0x13b [89458.764743] [] vmxnet3_process_events+0x3b/0x10c [89458.764748] [] vmxnet3_msix_event+0x40/0x5c [89458.765129] [] handle_irq_event_percpu+0x44/0x18b [89458.765261] [] ? arch_local_irq_save+0x12/0x17 [89458.765387] [] ? unmask_irq+0x1e/0x1e [89458.765393] [] handle_irq_event+0x25/0x3f [89458.765397] [] ? unmask_irq+0x1e/0x1e [89458.765401] [] handle_edge_irq+0x82/0x9d [89458.765403] [] ? do_IRQ+0x37/0x8d [89458.795193] [] ? scsi_finish_command+0xd2/0xda [89458.795210] [] ? scsi_decide_disposition+0xfd/0x188 [89458.795219] [] ? ftrace_define_fields_irq_handler_entry+0x71/0x71 [89460.964638] [] ? common_interrupt+0x30/0x38 [89460.964657] [] ? ftrace_define_fields_irq_handler_entry+0x71/0x71 [89462.112729] [] ? des3_ede_setkey+0x3bf/0x754 [89462.112750] [] ? arch_local_irq_enable+0x7/0xb [89462.112756] [] ? __do_softirq+0x59/0x18d [89462.112763] [] ? ftrace_define_fields_irq_handler_entry+0x71/0x71 [89462.112766] [] ? irq_exit+0x35/0x86 [89462.115903] [] ? smp_apic_timer_interrupt+0x64/0x71 [89462.115965] [] ? scsi_setup_fs_cmnd+0x6e/0x73 [89462.115980] [] ? apic_timer_interrupt+0x31/0x38 [89462.115989] [] ? arch_local_irq_restore+0x5/0xb [89462.115995] [] ? _raw_spin_unlock_irqrestore+0xf/0x11 [89462.116002] [] ? mptspi_qcmd+0x9f/0xa8 [89462.116010] [] ? scsi_finish_command+0xda/0xda [89462.116016] [] ? scsi_dispatch_cmd+0x150/0x1f7 [89463.216101] [] ? blk_add_timer+0x6f/0x91 [89463.216122] [] ? scsi_request_fn+0x452/0x47a [89464.329451] [] ? kmem_cache_alloc+0x73/0xd7 [89465.360988] [] ? mempool_alloc_slab+0xe/0x10 [89465.361007] [] ? __blk_run_queue+0x14/0x16 [89465.361013] [] ? queue_unplugged+0x5b/0x80 [89465.361018] [] ? read_tsc+0x9/0x26 [89465.361023] [] ? blk_flush_plug_list+0x153/0x163 [89465.361095] [] ? io_schedule+0x38/0x62 [89465.361101] [] ? sleep_on_page+0x8/0xc [89465.361105] [] ? __wait_on_bit+0x34/0x5b [89465.376234] [] ? lock_page+0x20/0x20 [89465.376252] [] ? wait_on_page_bit+0x59/0x60 [89465.376259] [] ? autoremove_wake_function+0x34/0x34 [89465.376263] [] ? filemap_fdatawait_range+0x73/0x123 [89465.376339] [] ? bio_alloc_bioset+0x37/0x97 [89466.049333] [] ? jbd2_journal_write_metadata_buffer+0x26a/0x27d [89466.049352] [] ? filemap_fdatawait+0x31/0x3b [89466.049359] [] ? jbd2_journal_commit_transaction+0x9b7/0x12f1 [89466.049366] [] ? kjournald2+0xa1/0x1f7 [89466.049373] [] ? remove_wait_queue+0x27/0x27 [89466.049377] [] ? kthread+0x59/0x5e [89466.049382] [] ? commit_timeout+0xa/0xa [89466.049387] [] ? kthread_freezable_should_stop+0x3b/0x3b [89466.049394] [] ? kernel_thread_helper+0x6/0xd [89466.049398] ---[ end trace 1311b68903c57261 ]--- [89510.373372] eth0: NIC Link is Down [89515.678226] eth0: NIC Link is Up 10000 Mbps [95685.119369] eth0: NIC Link is Down [95693.639798] eth0: NIC Link is Up 10000 Mbps [95770.746511] eth0: NIC Link is Down [95775.963195] eth0: NIC Link is Up 10000 Mbps [167185.224550] BUG: soft lockup - CPU#1 stuck for 21s! [nmbd:753] [167185.435684] Modules linked in: vmwgfx ttm drm [167185.754011] Pid: 753, comm: nmbd Tainted: G W 3.6.0-rc5+ #27 VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform [167185.840437] EIP: 0060:[] EFLAGS: 00000207 CPU: 1 [167185.982084] EIP is at getnstimeofday+0x5b/0x72 [167185.982089] EAX: 3cf05455 EBX: f3d77f88 ECX: 3b18b135 EDX: 03d26bac [167185.982091] ESI: 50528949 EDI: b8fc2c60 EBP: f3d77f80 ESP: f3d77f78 [167185.982093] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [167185.982095] CR0: 80050033 CR2: 4805b29a CR3: 33da4000 CR4: 000007d0 [167186.045565] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [167186.045591] DR6: ffff0ff0 DR7: 00000400 [167186.045596] Process nmbd (pid: 753, ti=f3d76000 task=f50c8000 task.ti=f3d76000) [167186.045599] Stack: [167186.045601] f3d77f9c 00000000 f3d77f94 c04643cc 50528949 89a62655 bfeb5ce8 f3d77fac [167186.045609] c0431ec9 11b4c5f2 b8fc38d0 bfeb5ce8 bfeb5ce8 f3d76000 c08e74e3 bfeb5ce8 [167186.045615] 00000000 b77cbff4 bfeb5ce8 b8fc2c60 00000001 0000004e 0000007b 0000007b [167186.045621] Call Trace: [167186.045633] [] do_gettimeofday+0x11/0x29 [167186.045687] [] sys_gettimeofday+0x1a/0x5b [167186.211345] [] sysenter_do_call+0x12/0x2c [167186.211354] Code: ee a1 e8 72 c7 c0 89 03 e8 5f ff ff ff 89 43 04 39 35 2c 73 c7 c0 75 d7 8b 43 04 31 c9 8b 33 99 eb 09 05 00 36 65 c4 83 d2 ff 41 <83> fa 00 77 f2 3d ff c9 9a 3b 77 eb 01 f1 89 0b 89 43 04 5b 5e{.n++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I