Hi
Host has pata_amd (ata1,2) and pata_pdc2027x (ata3,4).
It cannot add ata2 and ata4.
bus: 'pci': driver_probe_device: matched device 0000:00:09.0 with
driver pata_amd
bus: 'pci': really_probe: probing driver pata_amd with device 0000:00:09.0
pata_amd 0000:00:09.0: version 0.4.1
pata_amd 0000:00:09.0: setting latency timer to 64
scsi0 : pata_amd
device: 'host0': device_add
bus: 'scsi': add device host0
device: 'host0': device_add
scsi1 : pata_amd
device: 'host1': device_add
bus: 'scsi': add device host1
device: 'host1': device_add
ata1: PATA max UDMA/133 cmd 0x1f0 ctl 0x3f6 bmdma 0xf000 irq 14
ata2: PATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0xf008 irq 15
driver: '0000:00:09.0': driver_bound: bound to device 'pata_amd'
bus: 'pci': really_probe: bound device 0000:00:09.0 to driver pata_amd
bus: 'pci': add driver pata_pdc2027x
bus: 'pci': driver_probe_device: matched device 0000:01:08.0 with
driver pata_pdc2027x
bus: 'pci': really_probe: probing driver pata_pdc2027x with device 0000:01:08.0
pata_pdc2027x 0000:01:08.0: version 1.0
ACPI: PCI Interrupt Link [APC1] enabled at IRQ 16
pata_pdc2027x 0000:01:08.0: PCI INT A -> Link[APC1] -> GSI 16 (level,
high) -> IRQ 16
pata_pdc2027x 0000:01:08.0: PLL input clock 16686 kHz
scsi2 : pata_pdc2027x
device: 'host2': device_add
bus: 'scsi': add device host2
device: 'host2': device_add
ata1.00: ATA-7: ST3250823A, 3.02, max UDMA/100
ata1.00: 488397168 sectors, multi 16: LBA48
ata1: nv_mode_filter: 0x3f39f&0x3f01f->0x3f01f, BIOS=0x3f000
(0xc600c600) ACPI=0x3f01f (20:600:0x13)
scsi3 : pata_pdc2027x
device: 'host3': device_add
bus: 'scsi': add device host3
device: 'host3': device_add
ata3: PATA max UDMA/100 mmio m65536@0xed040000 cmd 0xed0417c0 irq 16
ata4: PATA max UDMA/100 mmio m65536@0xed040000 cmd 0xed0415c0 irq 16
driver: '0000:01:08.0': driver_bound: bound to device 'pata_pdc2027x'
bus: 'pci': really_probe: bound device 0000:01:08.0 to driver pata_pdc2027x
ata1.00: configured for UDMA/100
ata3.00: ATA-7: ST3250823A, 3.03, max UDMA/100
ata3.00: 488397168 sectors, multi 16: LBA48
ata3.00: configured for UDMA/100
INFO: task swapper:1 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
swapper D c0586e00 5492 1 0 0x00000000
f704ff3c 00000046 c014eca4 c0586e00 00000296 f7050000 f7050284 e41d1a0a
00000003 00000001 f7050284 f704ff3c c0144247 f704ff60 c0586e6c 00000000
f704ff80 c014456d f7050000 f7050000 c044fb85 c06eb6e0 00000005 c014eca4
Call Trace:
[<c014eca4>] ? trace_hardirqs_on_caller+0x124/0x180
[<c0144247>] ? lowest_in_progress+0x37/0x70
[<c014456d>] async_synchronize_cookie_domain+0xbd/0x150
[<c044fb85>] ? _spin_unlock_irqrestore+0x55/0x70
[<c014eca4>] ? trace_hardirqs_on_caller+0x124/0x180
[<c013e520>] ? autoremove_wake_function+0x0/0x40
[<c014460d>] async_synchronize_cookie+0xd/0x10
[<c0144628>] async_synchronize_full+0x18/0x40
[<c033e318>] wait_for_device_probe+0x68/0x70
[<c013e520>] ? autoremove_wake_function+0x0/0x40
[<c0704e62>] prepare_namespace+0x18/0x17c
[<c018b510>] ? sys_access+0x20/0x30
[<c070450b>] kernel_init+0xd8/0xf1
[<c0704433>] ? kernel_init+0x0/0xf1
[<c0103677>] kernel_thread_helper+0x7/0x10
no locks held by swapper/1.
INFO: task async/0:500 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
async/0 D c0586e00 7380 500 2 0x00000000
f7103ed4 00000046 c014eca4 c0586e00 00000292 f72a0000 f72a0284 5b573649
00000001 00000003 f72a0284 f7103ed4 c0144247 f7103ef8 c06ec3c0 00000000
f7103f18 c014456d f7103f20 c034ca95 00000002 f70ed9cc 00000005 22222222
Call Trace:
[<c014eca4>] ? trace_hardirqs_on_caller+0x124/0x180
[<c0144247>] ? lowest_in_progress+0x37/0x70
[<c014456d>] async_synchronize_cookie_domain+0xbd/0x150
[<c034ca95>] ? scsi_alloc_target+0x275/0x2c0
[<c013e520>] ? autoremove_wake_function+0x0/0x40
[<c0144665>] async_synchronize_full_domain+0x15/0x20
[<c034d5f2>] __scsi_add_device+0xb2/0xe0
[<c01444dd>] ? async_synchronize_cookie_domain+0x2d/0x150
[<c03611d3>] ata_scsi_scan_host+0x103/0x180
[<c035dac1>] async_port_probe+0x91/0xc0
[<c0144350>] async_thread+0xd0/0x230
[<c044d12d>] ? schedule+0x37d/0x4c0
[<c014ed0b>] ? trace_hardirqs_on+0xb/0x10
[<c0124ac0>] ? default_wake_function+0x0/0x10
[<c0144280>] ? async_thread+0x0/0x230
[<c013e2a3>] kthread+0x43/0x80
[<c013e260>] ? kthread+0x0/0x80
[<c0103677>] kernel_thread_helper+0x7/0x10
1 lock held by async/0/500:
#0: (&shost->scan_mutex){+.+...}, at: [<c034d5ae>] __scsi_add_device+0x6e/0xe0
INFO: task async/1:502 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
async/1 D c0586e00 7488 502 2 0x00000000
f6aeff24 00000046 c014eca4 c0586e00 00000292 f72a2920 f72a2ba4 5b0bdd4d
00000001 00000001 f72a2ba4 f6aeff24 c0144247 f6aeff48 c0586e6c 00000000
f6aeff68 c014456d f6aeff34 f72a2920 c0108981 00000000 00000002 f6aeff48
Call Trace:
[<c014eca4>] ? trace_hardirqs_on_caller+0x124/0x180
[<c0144247>] ? lowest_in_progress+0x37/0x70
[<c014456d>] async_synchronize_cookie_domain+0xbd/0x150
[<c0108981>] ? sched_clock+0x21/0x70
[<c014c23d>] ? put_lock_stats+0xd/0x30
[<c013e520>] ? autoremove_wake_function+0x0/0x40
[<c014460d>] async_synchronize_cookie+0xd/0x10
[<c035dad1>] async_port_probe+0xa1/0xc0
[<c0144350>] async_thread+0xd0/0x230
[<c044d12d>] ? schedule+0x37d/0x4c0
[<c014ed0b>] ? trace_hardirqs_on+0xb/0x10
[<c0124ac0>] ? default_wake_function+0x0/0x10
[<c0144280>] ? async_thread+0x0/0x230
[<c013e2a3>] kthread+0x43/0x80
[<c013e260>] ? kthread+0x0/0x80
[<c0103677>] kernel_thread_helper+0x7/0x10
no locks held by async/1/502.
INFO: task async/2:509 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
async/2 D c0586e00 7604 509 2 0x00000000
f72abf24 00000046 c014eca4 c0586e00 00000292 f71cd240 f71cd4c4 71cf4cd4
00000001 00000001 f71cd4c4 f72abf24 c0144247 f72abf48 c0586e6c 00000000
f72abf68 c014456d 00000292 f72abf38 c014ed0b f72abf48 00000003 00000292
Call Trace:
[<c014eca4>] ? trace_hardirqs_on_caller+0x124/0x180
[<c0144247>] ? lowest_in_progress+0x37/0x70
[<c014456d>] async_synchronize_cookie_domain+0xbd/0x150
[<c014ed0b>] ? trace_hardirqs_on+0xb/0x10
[<c013e520>] ? autoremove_wake_function+0x0/0x40
[<c014460d>] async_synchronize_cookie+0xd/0x10
[<c035dab5>] async_port_probe+0x85/0xc0
[<c0144350>] async_thread+0xd0/0x230
[<c044d12d>] ? schedule+0x37d/0x4c0
[<c014ed0b>] ? trace_hardirqs_on+0xb/0x10
[<c0124ac0>] ? default_wake_function+0x0/0x10
[<c0144280>] ? async_thread+0x0/0x230
[<c013e2a3>] kthread+0x43/0x80
[<c013e260>] ? kthread+0x0/0x80
[<c0103677>] kernel_thread_helper+0x7/0x10
no locks held by async/2/509.
INFO: task async/3:511 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
async/3 D c0586e00 7604 511 2 0x00000000
f7163f24 00000046 c014eca4 c0586e00 00000292 f70a9490 f70a9714 5b5d68ff
00000001 00000001 f70a9714 f7163f24 c0144247 f7163f48 c0586e6c 00000000
f7163f68 c014456d f7163f34 f70a9490 c0108981 00000000 00000004 f7163f48
Call Trace:
[<c014eca4>] ? trace_hardirqs_on_caller+0x124/0x180
[<c0144247>] ? lowest_in_progress+0x37/0x70
[<c014456d>] async_synchronize_cookie_domain+0xbd/0x150
[<c0108981>] ? sched_clock+0x21/0x70
[<c014c23d>] ? put_lock_stats+0xd/0x30
[<c013e520>] ? autoremove_wake_function+0x0/0x40
[<c014460d>] async_synchronize_cookie+0xd/0x10
[<c035dad1>] async_port_probe+0xa1/0xc0
[<c0144350>] async_thread+0xd0/0x230
[<c044d12d>] ? schedule+0x37d/0x4c0
[<c014ed0b>] ? trace_hardirqs_on+0xb/0x10
[<c0124ac0>] ? default_wake_function+0x0/0x10
[<c0144280>] ? async_thread+0x0/0x230
[<c013e2a3>] kthread+0x43/0x80
[<c013e260>] ? kthread+0x0/0x80
[<c0103677>] kernel_thread_helper+0x7/0x10
no locks held by async/3/511.
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