From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 81861] New: mvsas.ko v0.8.16 error messages and kernel crashes
attaching 4 SATA drives to specific HP SAS expander ports
Date: Thu, 07 Aug 2014 17:33:26 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=3D81861
Bug ID: 81861
Summary: mvsas.ko v0.8.16 error messages and kernel crashes
attaching 4 SATA drives to specific HP SAS expander
ports
Product: SCSI Drivers
Version: 2.5
Kernel Version: 3.16.0-031600rc6
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: blocking
Priority: P1
Component: Other
Assignee: scsi_drivers-other@kernel-bugs.osdl.org
Reporter: linux-ide@crashplan.pro
Regression: No
The issues are (1) error messages and (2) kernel crashes when attaching=
4
drives (1 SFF SAS cable) to specific ports of a SAS expander.
The issue is only tested with HP SAS port expander (PMC Sierra PM8005 c=
hip)
running firmware 2.08. This expander has 36/4=3D9 SAS ports.
1 port of type SFF-8088, labelled 1C on the PCB.
8 port of type SFF-8087, labelled 2C till 9C on the PCB.
Port =E2=80=9C1C=E2=80=9D is connected to a Supermicro SAS2LP-MV8, Marv=
ell 88SE9485 based chip,
lspci output is inserted below.
The issue is not always identical. When attaching the 4 drives to diffe=
rent
port numbers on the port multiplier, this is what happens in this order=
:
2C, 3C, 4C =3D ok
5C =3D error
6C, 7C, 8C =3D kernel crash
9C =3D error
After that first run from port 2 till 9, the issue seems more random:
9C =3D kernel crash
4C =3D kernel crash
3C =3D error
9C =3D error
7C =3D kernel crash
3C =3D error
2C =3D ok
4C =3D kernel crash
The =E2=80=9Cerror message=E2=80=9D on ports 5C and 9C is:
scsi 5:0:4:0: Failed to get diagnostic page 0x8000002
scsi 5:0:4:0: Failed to bind enclosure -19
=3D=3D=3D=3D
Most testing is done with Ubuntu 14.04.1 running Ubuntu=E2=80=99s suppl=
ied mainline
kernel 3.16.0-rc6.=20
# modprobe -v mvsas
insmod
/lib/modules/3.16.0-031600rc6-generic/kernel/drivers/scsi/scsi_transpor=
t_sas.ko
insmod
/lib/modules/3.16.0-031600rc6-generic/kernel/drivers/scsi/libsas/libsas=
=2Eko
insmod /lib/modules/3.16.0-031600rc6-generic/kernel/drivers/scsi/mvsas/=
mvsas.ko
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Other tested kernels, with similar results
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
kernel Mainline 3.16-20140724
kernel Ubuntu 3.13.11
kernel Ubuntu 3.13.0-24
kernel Ubuntu 3.12.25
kernel Ubuntu 2.6.32 =3D no SAS expander detected -> no further testing
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
No drives attached to expander
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
# lsscsi
[4:0:0:0] disk ATA OCZ-VERTEX 1.3 /dev/sda
[5:0:0:0] enclosu HP HP SAS EXP Card 2.08 -
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
With 4 drives (brown#4) attached to expander port 2C
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
# lsscsi
[4:0:0:0] disk ATA OCZ-VERTEX 1.3 /dev/sda
[6:0:0:0] disk ATA Hitachi HDS5C302 AAB0 /dev/sdb
[6:0:1:0] disk ATA Hitachi HDS5C302 AAB0 /dev/sdc
[6:0:2:0] disk ATA Hitachi HDS5C302 AAB0 /dev/sdd
[6:0:3:0] disk ATA Hitachi HDS5C302 AAB0 /dev/sde
[6:0:4:0] enclosu HP HP SAS EXP Card 2.08 -
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
With 4 drives (brown#4) attached to expander port 3C
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
# lsscsi
[4:0:0:0] disk ATA OCZ-VERTEX 1.3 /dev/sda
[6:0:4:0] enclosu HP HP SAS EXP Card 2.08 -
[6:0:5:0] disk ATA Hitachi HDS5C302 AAB0 /dev/sdb
[6:0:6:0] disk ATA Hitachi HDS5C302 AAB0 /dev/sdc
[6:0:7:0] disk ATA Hitachi HDS5C302 AAB0 /dev/sdd
[6:0:8:0] disk ATA Hitachi HDS5C302 AAB0 /dev/sde
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
With 4 drives (brown#4) attached to expander port 4C
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
# lsscsi
[4:0:0:0] disk ATA OCZ-VERTEX 1.3 /dev/sda
[6:0:4:0] enclosu HP HP SAS EXP Card 2.08 -
[6:0:9:0] disk ATA Hitachi HDS5C302 AAB0 /dev/sdb
[6:0:10:0] disk ATA Hitachi HDS5C302 AAB0 /dev/sdc
[6:0:11:0] disk ATA Hitachi HDS5C302 AAB0 /dev/sdd
[6:0:12:0] disk ATA Hitachi HDS5C302 AAB0 /dev/sde
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
With 4 drives (brown#4) attached to expander port 5C
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
scsi 5:0:4:0: Failed to get diagnostic page 0x8000002
scsi 5:0:4:0: Failed to bind enclosure -19
# lsscsi
[4:0:0:0] disk ATA OCZ-VERTEX 1.3 /dev/sda
[5:0:4:0] enclosu HP HP SAS EXP Card 2.08 -
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
With 4 drives (brown#4) attached to expander port 6C
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Kernel crash (data from OCR-ed screenshot):
[ 263.190030] R13 ffff88020e837808 R14: ffff88021b4a0080 R15: ffff88003=
6cll200
[ 269.130052] FS: 00007f9ef5abb740(0000) GS:ffff88021b200000(0000)
knlGS:0000000000000000 =20
[ 269.190074] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 269.190091] CR2 00007f9ef5ac2000 CR3: 000000020fbd8000 CR4: 000000000=
00407f0
[ 269.190111] Stack: =20
[ 269.190118] 0000000000000000 0000000000000002 ffff88021f5f7f08
dead000000200200 =20
[ 269.190145] ffff38020dl037b0 0000000000000046 ffff88020eb81e38
ffffffff811b06ae =20
[ 269.190171] ffff38020e837798 ffff88020d69bl40 ffff88020dl037b0
ffff88020dl00000 =20
[ 269.190197] Call Trace:
[ 269.190210] [] ? dma_pool_alloc+0xce/0x100
[ 269.190229] [] mvs_task_prep+0x58b/0x620 [mvsas]
[ 269.190248] [] mvs_task_exec.isra.14+0x68/0xf0 [mvsa=
s]
[ 269.190269] [] mvs_queue_command+0x39/0x40 [mvsas]
[ 269.190291] [] sas_ata_qc_issue+0x28b/0x2d0 [libsas]
[ 269.190312] [] ata_qc_issue+0xl8f/0x2d0
[ 269.190331] [] ? ata_scsi_rw_xlat+0x230/0x230
[ 269.190349] [] ata_scsi_translate+0xb4/0x1b0
[ 269.190369] [] ata_sas_queuecmd+0xl21/0x2b0
[ 269.190389] [] sas_queuecommand+0x20f/0x280 [libsas]
[ 269.190409] [] scsi_dispatch_cmd+0xce/0x280
[ 269.190428] [] scsi_request_fn+0x372/0x490
[ 269.190447] [] __blk_run_queue+0x37/0x50
[ 269.190465] [] __elv_add_request+0xef/0x310
[ 269.190483] [] blk_execute_rq_noujait+0xb3/0x190
[ 269.190504] [] ? kmem_cache_alloc_node+0xle3/0x200
[ 269.190523] [] blk_execute_rq+0x8d/0x160
[ 269.190542] [] ? security_capable+0x18/0x20
[ 269.190561] [] ? ns_capable+0x30/0x60
[ 269.190578] [] ? capable+0x17/0x20
[ 269.191191] [] ? blk_verify_command+0x25/0x70
[ 269.191806] [] sg_io+0x168/0x2c0
[ 269.192422] [] scsi_cmd_ioct1+0x227/0x520
[ 269.193030] [] ? __handle_mm_fault+0x1db/0x360
[ 269.193631] [] scsi_cmd_blk_ioctl+0x4e/0x60
[ 269.194231] [] sd_ioctl+0xd7/0xl60
[ 269.194810] [] blkdev_ioctl+0xde/0x810
[ 269.195373] [] ? vtime_account_user+0x5d/0x70
[ 269.195921] [] block_ioct1+0x40/0x50
[ 269.196449] [] do_vfs_ioct1+0x75/0x2c0
[ 269.196966] [] ? syscall_trace_enter+0x165/0x280
[ 269.197475] [] ? context_tracking_user_enter+0x25/0x=
30
[ 269.197972] [] SyS_ioctl+0x91/0xb0
[ 269.198458] [] tracesys+0xe1/0xe6
[ 269.198930] Code: 00 00 48 8b 0c c8 0f 84 a7 02 00 00 44 89 c0 41 b9=
00 10
00 00 48 8d 34 80 48 3d 04 70 48 3d b4 c3 b3 55 02
00 8b 43 58 89 46 lc <8b> 89 54 02 00 00 44 89 C0 8b 7b 58 0d 00 00 00 =
70 4c 8b
53 48
[ 269.200019] RIP [] mvs_task_prep_ata+0x80/0x3a0 [mv=
sas] =20
[ 269.200534] RSP =20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
With 4 drives (brown#4) attached to expander port 7C
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Kernel crash (from OCR-ed screenshot):
[ 38.934484] OS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 38.934501] CR2: 0000000000000254 CR3: 0000000001C12000 CR4: 000000000=
00407e0
[ 38.934522] Stack:
[ 38.934529] ffff88021b214400 ffff880200000000 0000000000000282
0000000000000000
[ 38.934556] ffff8300d4c03618 0000000000000046 ffff8300d5b01e38
ffffffff811b06ae
[ 38.934582] ffff88021b214400 ffff88020d65el40 ffff8800d4c03618
ffff8800d4c00000
[ 38.934608] Call Trace:
[ 38.934619] [] ? dma_pool_alloc+0xce/0xl00
[ 38.934638] [] mvs_task_prep+0x58b/0x620 [mvsas]
[ 38.934659] [] ? ttwu_do_activate.constprop.111+0x66=
/0x70
[ 38.934682] [] mvs_task_exec.isra.14+0x68/0xf0 [mvsa=
s]
[ 38.934703] [] mvs_queue_command+0x39/0x40 [mvsas]
[ 38.934725] [] sas_ata_qc_issue+0x28b/0x2d0 [libsas]
[ 38.934747] [] ata_qc_issue+0xl8f/0x2d0
[ 38.934764] [] ata_exec_internal_sg+0x2f8/0x5d0
[ 38.934783] [] ata_exec_internal+0x72/0xb0
[ 38.934802] [] ata_do_dev_read_id+0x2a/0x30
[ 38.934821] [] ? sas_ata_internal_abort+0xl20/0xl20 =
[libsas]
[ 38.934843] [] ata_dev_read_id+0x245/0x460
[ 38.934861] [] ? ata_eh_reset+0x24c/0xe20
[ 38.934878] [] ata_eh_revalidate_and_attach+0xl98/0x=
3a0
[ 38.934899] [] ata_eh_recover+0x599/0x7e0
[ 38.934917] [] ? sata_print_link_status+0xc0/0xc0
[ 38.934937] [] ? sas_ata_internal_abort+0xl20/0xl20 =
[libsas]
[ 38.934959] [] ? sata_std_hardreset+0x50/0x50
[ 38.934978] [] ? sas_ata_internal_abort+0xl20/0xl20 =
[libsas]
[ 38.935618] [] ? sata_std_hardreset+0x50/0x50
[ 38.936257] [] ? sas_ata_internal_abort+0xl20/0xl20 =
[libsas]
[ 38.936905] [] ata_do_eh+0x52/0xc0
[ 38.937538] [] ? sata_print_link_status+0xc0/0xc0
[ 38.938163] [] ata_std_error_handler+0x47/0x80
[ 38.938783] [] ? ata_eh_handle_port_resume+0x38/0xl6=
0
[ 38.939410] [] ata_scsi_port_error_handler+0x39b/0x5=
a0
[ 38.940024] [] async_sas_ata_eh+0x55/0x90 [libsas]
[ 38.940621] [] async_run_entry_fn+0x3b/0xl40
[ 38.941201] [] process_one_work+0xl7f/0x4c0
[ 38.941767] [] worker_thread+0xllb/0x3f0
[ 38.942320] [] ? create_and_start_worker+0x80/0x80
[ 38.942864] [] kthread+0xc9/0xe0
[ 38.943398] [] ? flush_kthread_worker+0xb0/0xb0
[ 38.943927] [] ret_from_fork+0x7c/0xb0
[ 38.944443] [] ? flush_kthread_worker+0xb0/0xb0
[ 38.944956] Code: 00 00 48 8b 0c c8 0f 84 a7 02 00 00 44 89 c0 41 b9 0=
0 10 00
00 48 8d 34 80 48 8d 04 70 48 8d b4 c3 b8 55 02
00 8b 43 58 89 46 lc <8b> 89 54 02 00 00 44 89 c0 8b 7b 58 Od 00 00 00 =
70 4c 8b
53 48
[ 38.946132] RIP [] mvs_task_prep_ata+0x80/0x3a0 [mvs=
as]
38.9466881 RSP
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
With 4 drives (brown#4) attached to expander port 8C
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Kernel crash (text from OCR-ed screenshot):
[ 335.117520] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 335.117537] CR2: 00007fff5S6452C0 CR3: 0000000001C12000 CR4: 00000000=
000407e0
[ 335.117557] Stack:
[ 335.117565] ffff88021b214400 ffff880200000000 0000000000000282
74737572745f7374
[ 335.117591] ffff8800d5b03618 0000000000000046 ffff88020f301e38
ffffffff311b06ae
[ 335.117617] ffff8802lb214400 ffff8800d4bda280 ffff8800d5b03618
ffff8800d5b00000
[ 335.117644] Call Trace:
[ 335.117656] [] ? dma_pool_alloc+0xce/0x100
[ 335.117676] [] mvs_task_prep+0x58b/0x620 [mvsas]
[ 335.117697] [] ? ttwu_do_activate.constprop.111+0x6=
6/0x70
[ 335.117720] [] mvs_task_exec.isra.14+0x68/0xf0 [mvs=
as]
[ 335.117741] [] mvs_queue_command+0x39/0x40 [mvsas]
[ 335.117764] [] sas_ata_qc_issue+0x28b/0x2d0 [libsas=
]
[ 335.117786] [] ata_qc_issue+0xl8f/0x2d0
[ 335.117804] [] ata_exec_internal_sg+0x2f8/0x5d0
[ 335.117823] [] ata_exec_internal+0x72/0xb0
[ 335.117842] [] ata_do_dev_read_id+0x2a/0x30
[ 335.117861] [] ? sas_ata_internal_abort+0xl20/0xl20
[libsas]
[ 335.117883] [] ata_dev_read_id+0x245/0x460
[ 335.117901] [] ? ata_eh_reset+0x24c/0xe20
[ 335.117919] [] ata_eh_revalidate_and_attach+0xl98/0=
x3a0
[ 335.117940] [] ata_eh_recover+0x599/0x7e0
[ 335.117959] [] ? sata_print_link_status+0xc0/0xc0
[ 335.117979] [] ? sas_ata_internal_abort+0xl20/0xl20
[libsas]
[ 335.118001] [] ? sata_std_hardreset+0x50/0x50
[ 335.118019] [] ? sas_ata_internal_abort+0xl20/0xl20
[libsas]
[ 335.118041] [] ? sata_std_hardreset+0x50/0x50
[ 335.118061] [] ? sas_ata_internal_abort+0xl20/0xl20
[libsas]
[ 335.118083] [] ata_do_eh+0x52/0xc0
[ 335.118709] [] ? sata_print_link_status+0xc0/0xc0
[ 335.119338] [] ata_std_error_handler+0x47/0x80
[ 335.119970] [] ? ata_eh_handle_port_resume+0x38/0xl=
60
[ 335.120600] [] ata_scsi_port_error_handler+0x39b/0x=
5a0
[ 335.121215] [] async_sas_ata_eh+0x55/0x90 [libsas]
[ 335.121812] [] async_run_entry_fn+0x3b/0xl40
[ 335.122394] [] process_one_work+0xl7f/0x4c0
[ 335.122963] [] ? maybe_create_worker+0xbb/0xlc5
[ 335.123520] [] worker_thread+0xllb/0x3f0
[ 335.124064] [] ? create_and_start_worker+0x80/0x80
[ 335.124605] [] kthread+0xc9/0xe0
[ 335.125133] [] ? flush_kthread_worker+0xb0/0xb0
[ 335.125654] [] ret_from_fork+0x7c/0xb0
[ 335.126169] [] ? flush_kthread_worker+0xb0/0xb0
[ 335.126685] Code: 00 00 48 8b 0c C8 0f 84 a7 02 00 00 44 89 C0 41 b9 =
00 10 00
00 48 8d 34 80 48 8d 04 70 48 8d b4 c3 b8 55 02
00 8b 43 58 89 46 lc <8b> 89 54 02 00 00 44 89 C0 8b 7b 58 0d 00 00 00 =
70 4c 8b
53 48
[ 335.127858] RIP [] mvs_task_prep_ata+0x80/0x3a0 [mv=
sas]
[ 335.128415] RSP
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
With 4 drives (brown#4) attached to expander port 9C
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
scsi 5:0:4:0: Failed to get diagnostic page 0x8000002
scsi 5:0:4:0: Failed to bind enclosure -19
# lsscsi
[4:0:0:0] disk ATA OCZ-VERTEX 1.3 /dev/sda
[5:0:4:0] enclosu HP HP SAS EXP Card 2.08 -
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
With 4 drives (brown#4) attached to expander port 9C [a second time],
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Kernel crash (text from screen OCR):
[ 35.957789] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 35.957806] CR2: 00007f6c3faf8000 CR3: 0000000001c12000 CR4: 000000000=
00407f0
[ 35.957826] Stack:
[ 35.957833] ffff88021b314400 ffff880200000000 0000000000000282
eb3377d73948ca01
[ 35.957860] ffff88020ed037b0 0000000000000046 ffff88020ec01e38
ffffffff811b06ae
[ 35.957885] ffff88021b314400 ffff88020d66ddc0 ffff88020ed037b0
ffff88020ed00000
[ 35.957912] Call Trace:
[ 35.957924] [] ? dma_pool_alloc+0xce/0x100
[ 35.957944] [] mvs_task_prep+0x58b/0x620 [mvsas]
[ 35.957965] [] ? ttwu_do_activate.constprop.111+0x66=
/0x70
[ 35.957987] [] mvs_task_exec.isra.14+0x68/0xf0 [mvsa=
s]
[ 35.958008] [] mvs_queue_command+0x39/0x40 [mvsas]
[ 35.958030] [] sas_ata_qc_issue+0x28b/0x2d0 [libsas]
[ 35.958052] [] ata_qc_issue+0xl8f/0x2d0
[ 35.958069] [] ata_exec_internal_sg+0x2f8/0x5d0
[ 35.958089] [] ata_exec_internal+0x72/0xb0
[ 35.958107] [] ata_do_dev_read_id+0x2a/0x30
[ 35.958126] [] ? sas_ata_internal_abort+0xl20/0xl20 =
[libsas]
[ 35.958148] [] ata_dev_read_id+0x245/0x460
[ 35.958166] [] ? ata_eh_reset+0x24c/0xe20
[ 35.958185] [] ata_eh_revalidate_and_attach+0xl98/0x=
3a0
[ 35.958205] [] ata_eh_recover+0x599/0x7e0
[ 35.958223] [] ? sata_print_link_status+0xc0/0xc0
[ 35.958243] [] ? sas_ata_internal_abort+0xl20/0xl20 =
[libsas]
[ 35.958265] [] ? sata_std_hardreset+0x50/0x50
[ 35.958283] [] ? sas_ata_internal_abort+0xl20/0xl20 =
[libsas]
[ 35.958305] [] ? sata_std_hardreset+0x50/0x50
[ 35.958324] [] ? sas_ata_internal_abort+0xl20/0xl20 =
[libsas]
[ 35.958346] [] ata_do_eh+0x52/0xc0
[ 35.958971] [] ? sata_print_link_status+0xc0/0xc0
[ 35.959600] [] ata_std_error_handler+0x47/0x80
[ 35.960231] [] ? ata_eh_handle_port_resume+0x38/0xl6=
0
[ 35.960861] [] ata_scsi_port_error_handler+0x39b/0x5=
a0
[ 35.961475] [] async_sas_ata_eh+0x55/0x90 [libsas]
[ 35.962071] [] async_run_entry_fn+0x3b/0xl40
[ 35.962652] [] process_one_work+0xl7f/0x4c0
[ 35.963218] [] ? maybe_create_worker+0xbb/0xlc5
[ 35.963775] [] worker_thread+0x11b/0x3f0
[ 35.964319] [] ? create_and_start_worker+0x80/0x80
[ 35.964858] [] kthread+0xc9/0xe0
[ 35.965385] [] ? flush_kthread_worker+0xb0/0xb0
[ 35.965904] [] ret_from_fork+0x7c/0xb0
[ 35.966418] [] ? fIush_kthread_worker+0xb0/0xb0
[ 35.966932] Code: 00 00 48 8b 0c c8 0f 84 a7 02 00 00 44 89 C0 41 b9 0=
0 10 00
00 48 8d 34 80 48 8d 04 70 48 8d b4 c3 b8 55 02
00 8b 43 58 89 46 lc <8b> 89 54 02 00 00 44 89 C0 8b 7b 58 0d 00 00 00 =
70 4c 8b
53 48
[ 35.968100] RIP [] mvs_task_prep_ata+0x80/0x3a0 [mvs=
as]
[ 35.968656] RSP
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
# lspci -nn -s 01: -vv
01:00.0 RAID bus controller [0104]: Marvell Technology Group Ltd. 88SE9=
485
SAS/SATA 6Gb/s controller [1b4b:9485] (rev 03)
Subsystem: Marvell Technology Group Ltd. Device [1b4b:9480]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=3Dfast >TAbort- SERR-