On Thu 14 Feb at 20:48:38 +0900 fujita.tomonori@xxxxxxxxxxxxx said: > > I have a slight doubt on the breakup code though I'm not sure you hit > the code. Reverting only the breakup part works? The patch is against > 2.6.24. I've tested this revert you posted. Essentially the same trace is logged (see below). The machine doesn't die though. But /proc/scsi/scsi doesn't show the hardware and I am getting an additional trace dumped now (see futher below). Feb 14 16:04:13 ipstest kernel: [ 1046.531180] ACPI: PCI Interrupt 0000:02:01.0[A] -> GSI 18 (level, low) -> IRQ 18 Feb 14 16:04:13 ipstest kernel: [ 1046.553420] scsi3 : IBM PCI ServeRAID 7.12.05 Build 761 <ServeRAID 4Mx> Feb 14 16:04:13 ipstest kernel: [ 1046.554103] PGD 7cc1f067 PUD 7c4f6067 PMD 0 Feb 14 16:04:13 ipstest kernel: [ 1046.554348] CPU 0 Feb 14 16:04:13 ipstest kernel: [ 1046.554460] Modules linked in: ips aic94xx Feb 14 16:04:13 ipstest kernel: [ 1046.554587] Pid: 4476, comm: scsi_scan_3 Not tainted 2.6.24-fujita-revert-breakup #1 Feb 14 16:04:13 ipstest kernel: [ 1046.554827] RIP: 0010:[check_addr+16/80] [check_addr+16/80] check_addr+0x10/0x50 Feb 14 16:04:13 ipstest kernel: [ 1046.555079] RSP: 0018:ffff81007b0f78f0 EFLAGS: 00010082 Feb 14 16:04:13 ipstest kernel: [ 1046.555208] RAX: 0000000000000000 RBX: ffff81007b92a300 RCX: 0000000000000024 Feb 14 16:04:13 ipstest kernel: [ 1046.555350] RDX: 000000007b92a600 RSI: ffffffff807a7340 RDI: ffffffff806e7f43 Feb 14 16:04:13 ipstest kernel: [ 1046.555494] RBP: ffff81007b0f78f0 R08: 0000000000000500 R09: 0000000000000000 Feb 14 16:04:13 ipstest kernel: [ 1046.555632] R10: ffff81007c463b38 R11: 0000000000000060 R12: 0000000000000000 Feb 14 16:04:13 ipstest kernel: [ 1046.555784] R13: 0000000000000001 R14: ffffffff807a7340 R15: ffff81007c463a80 Feb 14 16:04:13 ipstest kernel: [ 1046.555924] FS: 0000000000000000(0000) GS:ffffffff807d6000(0000) knlGS:0000000000000000 Feb 14 16:04:13 ipstest kernel: [ 1046.556173] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b Feb 14 16:04:13 ipstest kernel: [ 1046.556306] CR2: 0000000000000000 CR3: 000000007cd02000 CR4: 00000000000006e0 Feb 14 16:04:13 ipstest kernel: [ 1046.556443] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Feb 14 16:04:13 ipstest kernel: [ 1046.556582] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Feb 14 16:04:13 ipstest kernel: [ 1046.556731] Process scsi_scan_3 (pid: 4476, threadinfo ffff81007b0f6000, task ffff81007b9295c0) Feb 14 16:04:13 ipstest kernel: [ 1046.556972] Stack: ffff81007b0f7920 ffffffff80213118 ffff81007c463a80 ffff81007b0fcf50 Feb 14 16:04:13 ipstest kernel: [ 1046.557221] 0000000000000000 ffff81007cd14450 ffff81007b0f7930 ffffffff8047a4c2 Feb 14 16:04:13 ipstest kernel: [ 1046.557463] ffff81007b0f79b0 ffffffff8801c28e ffff81007c463ae8 000000017c463ae8 Feb 14 16:04:13 ipstest kernel: [ 1046.557603] Call Trace: Feb 14 16:04:13 ipstest kernel: [ 1046.557830] [nommu_map_sg+104/176] nommu_map_sg+0x68/0xb0 Feb 14 16:04:13 ipstest kernel: [ 1046.557949] [scsi_dma_map+66/96] scsi_dma_map+0x42/0x60 Feb 14 16:04:13 ipstest kernel: [ 1046.558083] [_end+124740294/2127405112] :ips:ips_next+0x33e/0xc10 Feb 14 16:04:13 ipstest kernel: [ 1046.558205] [scsi_done+0/48] scsi_done+0x0/0x30 Feb 14 16:04:13 ipstest kernel: [ 1046.558332] [_end+124752974/2127405112] :ips:ips_queue+0x106/0x1f0 Feb 14 16:04:13 ipstest kernel: [ 1046.558459] [scsi_dispatch_cmd+453/736] scsi_dispatch_cmd+0x1c5/0x2e0 Feb 14 16:04:13 ipstest kernel: [ 1046.558589] [scsi_request_fn+491/976] scsi_request_fn+0x1eb/0x3d0 Feb 14 16:04:13 ipstest kernel: [ 1046.558725] [__generic_unplug_device+37/48] __generic_unplug_device+0x25/0x30 Feb 14 16:04:13 ipstest kernel: [ 1046.558851] [blk_execute_rq_nowait+99/176] blk_execute_rq_nowait+0x63/0xb0 Feb 14 16:04:13 ipstest kernel: [ 1046.558982] [blk_execute_rq+122/224] blk_execute_rq+0x7a/0xe0 Feb 14 16:04:13 ipstest kernel: [ 1046.559110] [scsi_execute+240/288] scsi_execute+0xf0/0x120 Feb 14 16:04:13 ipstest kernel: [ 1046.559237] [scsi_execute_req+134/240] scsi_execute_req+0x86/0xf0 Feb 14 16:04:13 ipstest kernel: [ 1046.559366] [scsi_probe_and_add_lun+594/3472] scsi_probe_and_add_lun+0x252/0xd90 Feb 14 16:04:13 ipstest kernel: [ 1046.559501] [sas_expander_match+27/160] sas_expander_match+0x1b/0xa0 Feb 14 16:04:13 ipstest kernel: [ 1046.559633] [get_device+23/32] get_device+0x17/0x20 Feb 14 16:04:13 ipstest kernel: [ 1046.559755] [__scsi_scan_target+220/1680] __scsi_scan_target+0xdc/0x690 Feb 14 16:04:13 ipstest kernel: [ 1046.559887] [enqueue_task_fair+32/64] enqueue_task_fair+0x20/0x40 Feb 14 16:04:13 ipstest kernel: [ 1046.560019] [enqueue_task+19/48] enqueue_task+0x13/0x30 Feb 14 16:04:13 ipstest kernel: [ 1046.560141] [update_curr+101/192] update_curr+0x65/0xc0 Feb 14 16:04:13 ipstest kernel: [ 1046.560268] [scsi_scan_channel+139/160] scsi_scan_channel+0x8b/0xa0 Feb 14 16:04:13 ipstest kernel: [ 1046.560397] [scsi_scan_host_selected+158/352] scsi_scan_host_selected+0x9e/0x160 Feb 14 16:04:13 ipstest kernel: [ 1046.560532] [thread_return+61/1307] thread_return+0x3d/0x51b Feb 14 16:04:13 ipstest kernel: [ 1046.560657] [do_scan_async+0/384] do_scan_async+0x0/0x180 Feb 14 16:04:13 ipstest kernel: [ 1046.560784] [do_scsi_scan_host+126/128] do_scsi_scan_host+0x7e/0x80 Feb 14 16:04:13 ipstest kernel: [ 1046.560913] [do_scan_async+29/384] do_scan_async+0x1d/0x180 Feb 14 16:04:13 ipstest kernel: [ 1046.561041] [do_scan_async+0/384] do_scan_async+0x0/0x180 Feb 14 16:04:13 ipstest kernel: [ 1046.561172] [kthread+77/128] kthread+0x4d/0x80 Feb 14 16:04:13 ipstest kernel: [ 1046.561294] [child_rip+10/18] child_rip+0xa/0x12 Feb 14 16:04:13 ipstest kernel: [ 1046.561417] [kthread+0/128] kthread+0x0/0x80 Feb 14 16:04:13 ipstest kernel: [ 1046.561542] [child_rip+0/18] child_rip+0x0/0x12 Feb 14 16:04:13 ipstest kernel: [ 1046.561666] Feb 14 16:04:13 ipstest kernel: [ 1046.561772] Feb 14 16:04:13 ipstest kernel: [ 1046.561773] Code: 4c 8b 00 48 8d 04 0a 4c 39 c0 76 2b b8 fe ff ff ff 31 f6 49 Feb 14 16:04:13 ipstest kernel: [ 1046.562268] RSP <ffff81007b0f78f0> Feb 14 16:04:13 ipstest kernel: [ 1046.562853] ---[ end trace 3d5dd58222a8e80a ]--- Feb 14 16:04:28 ipstest kernel: [ 1061.857443] CPU 0: Feb 14 16:04:28 ipstest kernel: [ 1061.857673] Modules linked in: ips aic94xx Feb 14 16:04:28 ipstest kernel: [ 1061.857996] Pid: 0, comm: swapper Tainted: G D 2.6.24-fujita-revert-breakup #1 Feb 14 16:04:28 ipstest kernel: [ 1061.858291] RIP: 0010:[_spin_lock_irqsave+22/48] [_spin_lock_irqsave+22/48] _spin_lock_irqsave+0x16/0x30 Feb 14 16:04:28 ipstest kernel: [ 1061.858647] RSP: 0018:ffffffff8087fe60 EFLAGS: 00000286 Feb 14 16:04:28 ipstest kernel: [ 1061.858825] RAX: 0000000000000282 RBX: ffffffff8087fe60 RCX: ffff81007c463ae8 Feb 14 16:04:28 ipstest kernel: [ 1061.859012] RDX: ffff81007cd14000 RSI: 0000000000000001 RDI: ffff81007cd14050 Feb 14 16:04:28 ipstest kernel: [ 1061.859198] RBP: ffffffff8087fde0 R08: 000000000213c81f R09: 0000000000000010 Feb 14 16:04:28 ipstest kernel: [ 1061.859385] R10: 0000000000000005 R11: 0000000000000246 R12: ffffffff8020ced6 Feb 14 16:04:28 ipstest kernel: [ 1061.859572] R13: ffffffff8087fde0 R14: ffff81007c463a80 R15: ffff81007cd14000 Feb 14 16:04:28 ipstest kernel: [ 1061.859763] FS: 0000000000000000(0000) GS:ffffffff807d6000(0000) knlGS:0000000000000000 Feb 14 16:04:28 ipstest kernel: [ 1061.860058] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b Feb 14 16:04:28 ipstest kernel: [ 1061.860240] CR2: 0000000000611ec0 CR3: 000000007c466000 CR4: 00000000000006e0 Feb 14 16:04:28 ipstest kernel: [ 1061.860425] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Feb 14 16:04:28 ipstest kernel: [ 1061.860613] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Feb 14 16:04:28 ipstest kernel: [ 1061.860821] Feb 14 16:04:28 ipstest kernel: [ 1061.860822] Call Trace: Feb 14 16:04:28 ipstest kernel: [ 1061.861141] <IRQ> [scsi_eh_scmd_add+62/208] scsi_eh_scmd_add+0x3e/0xd0 Feb 14 16:04:28 ipstest kernel: [ 1061.861390] [scsi_times_out+0/192] scsi_times_out+0x0/0xc0 Feb 14 16:04:28 ipstest kernel: [ 1061.861573] [scsi_times_out+79/192] scsi_times_out+0x4f/0xc0 Feb 14 16:04:28 ipstest kernel: [ 1061.861758] [run_timer_softirq+359/464] run_timer_softirq+0x167/0x1d0 Feb 14 16:04:28 ipstest kernel: [ 1061.861942] [__do_softirq+116/240] __do_softirq+0x74/0xf0 Feb 14 16:04:28 ipstest kernel: [ 1061.862129] [profile_tick+94/160] profile_tick+0x5e/0xa0 Feb 14 16:04:28 ipstest kernel: [ 1061.862313] [call_softirq+28/48] call_softirq+0x1c/0x30 Feb 14 16:04:28 ipstest kernel: [ 1061.862495] [do_softirq+61/144] do_softirq+0x3d/0x90 Feb 14 16:04:28 ipstest kernel: [ 1061.862676] [irq_exit+69/80] irq_exit+0x45/0x50 Feb 14 16:04:28 ipstest kernel: [ 1061.862857] [smp_apic_timer_interrupt+74/112] smp_apic_timer_interrupt+0x4a/0x70 Feb 14 16:04:28 ipstest kernel: [ 1061.863041] [mwait_idle+0/80] mwait_idle+0x0/0x50 Feb 14 16:04:28 ipstest kernel: [ 1061.863223] [apic_timer_interrupt+102/112] apic_timer_interrupt+0x66/0x70 Feb 14 16:04:28 ipstest kernel: [ 1061.863403] <EOI> [mwait_idle+70/80] mwait_idle+0x46/0x50 Feb 14 16:04:28 ipstest kernel: [ 1061.863677] [enter_idle+34/48] enter_idle+0x22/0x30 Feb 14 16:04:28 ipstest kernel: [ 1061.863857] [cpu_idle+115/160] cpu_idle+0x73/0xa0 Feb 14 16:04:28 ipstest kernel: [ 1061.864039] [rest_init+90/96] rest_init+0x5a/0x60 Feb 14 16:04:28 ipstest kernel: [ 1061.864225] [start_kernel+618/752] start_kernel+0x26a/0x2f0 Feb 14 16:04:28 ipstest kernel: [ 1061.864406] [x86_64_start_kernel+298/320] _sinittext+0x12a/0x140 Feb 14 16:04:28 ipstest kernel: [ 1061.864585] That second trace then is repeatedly dumping every 12seconds without end. -- Tim Pepper <lnxninja@xxxxxxxxxxxxxxxxxx> IBM Linux Technology Center - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
