From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755882AbXD0P7Y (ORCPT ); Fri, 27 Apr 2007 11:59:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755950AbXD0P7X (ORCPT ); Fri, 27 Apr 2007 11:59:23 -0400 Received: from maigret.aip.de ([141.33.160.2]:24730 "HELO mail0.aip.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with SMTP id S1755882AbXD0P7T (ORCPT ); Fri, 27 Apr 2007 11:59:19 -0400 X-Greylist: delayed 399 seconds by postgrey-1.27 at vger.kernel.org; Fri, 27 Apr 2007 11:59:18 EDT Date: Fri, 27 Apr 2007 17:52:36 +0200 Organization: Astrophysikalisches Institut Potsdam To: linux-kernel@vger.kernel.org Subject: mptscsi timeout error Message-ID: <46321C44.mail83T1EA62M@euklid.aip.de> User-Agent: nail 10.5 4/27/03 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit From: mschultz@aip.de ( Manfred Schultz ) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org 1. mptscsi timeout error ======================== 2. problem/report ================= I want to configure a parallel file system. I checked 'lustre', 'GFS' and 'PVFS2' on different systems and found always the same or a similary errors. Wenn I try to write 50 files on the filesystem parallel (this should be possible on our cluster), it stopps with an timeout-error. This example is for PVFS2. It is installed PVFS2 for a single host (for a first test). Only one 2TB filesystem (/dev/sdb1) is used. PVFS2 seems to work. 50 files of about 10GB will be written. Two scripts will be started with commands "df; ls -l /mnt/pvfs2/test; sleep 1" in a loop (one by user 'root'). Test failed after about 3 hours. The raids are connected via LSI fiber-cannel-adapter and and QLogic FC switch. In a former test I connected the machine and the raid directly and got the same error. I checked also 'lustre' and 'GFS' in a similary configuration and found the same situation: stop of running processes, reboot required. The system log starts always with the timeout error message. It seems to be that error recovery goes in a loop. The combination 'lustre' and SCSI-raid produced the same error. The same test but using an ext3-filesystem was successfull. 3. Keywords =========== mptscsi, timeout, fusion 4. Kernel: ========== Linux version 2.6.21 (root@luise17.cluster) (gcc version 4.1.1 20070105 (Red Hat 4.1.1-52)) #1 SMP Fri Apr 27 10:08:35 CEST 2007 .. and older versions, 2.6.20.7 5. /var/log/messages: ===================== First scsi/error message: Apr 27 14:04:34 luise17 kernel: mptscsih: ioc0: attempting task abort! (sc=ffff8101f36b2500) Apr 27 14:04:34 luise17 kernel: sd 4:0:4:0: Apr 27 14:04:34 luise17 kernel: command: Write(10): 2a 00 18 d5 7f df 00 00 88 00 Apr 27 14:04:44 luise17 kernel: mptbase: ioc0: ERROR - Doorbell INT timeout (count=4999), IntStatus=80000000! Apr 27 14:04:44 luise17 kernel: mptscsih: ioc0: Issue of TaskMgmt failed! Apr 27 14:04:44 luise17 kernel: mptscsih: ioc0: task abort: FAILED (sc=ffff8101f36b2500) Apr 27 14:04:44 luise17 kernel: mptscsih: ioc0: attempting task abort! (sc=ffff810220ec4280) Apr 27 14:04:44 luise17 kernel: sd 4:0:4:0: Apr 27 14:04:44 luise17 kernel: command: Write(10): 2a 00 18 d7 91 7f 00 01 40 00 Apr 27 14:04:54 luise17 kernel: mptbase: ioc0: ERROR - Doorbell INT timeout (count=4999), IntStatus=80000000! Apr 27 14:04:54 luise17 kernel: mptscsih: ioc0: Issue of TaskMgmt failed! Apr 27 14:04:54 luise17 kernel: mptscsih: ioc0: task abort: FAILED (sc=ffff810220ec4280) Apr 27 14:04:54 luise17 kernel: mptscsih: ioc0: attempting task abort! (sc=ffff8102296b30c0) Apr 27 14:04:54 luise17 kernel: sd 4:0:4:0: Apr 27 14:04:54 luise17 kernel: command: Write(10): 2a 00 18 d7 92 bf 00 01 40 00 ... infinite loop 6. Program: called in a loop, 50 times, parallel. ================================================= program mkf5 implicit none integer :: l,n,m integer :: i,j,k,ll,l2,kk,s real (kind=8), allocatable :: a(:) character (len=22) :: filename 10 format ('Satzlaenge = ',i12) 20 format (A,' ',2i8) 30 format ("/mnt/pvfs2/test/P.",i4.4) 40 format ('Open Status =',i5) read (*,*) k,l,m n=l/8 write (*,10) n*8 allocate(a(n)) write (filename,30) k write (*,20) filename,l,m open (1,file=filename,status='unknown',form='unformatted',iostat=s) if (s/=0) write (8,40) s do j=1, m do i=1,n a(i)=float(j)+float(i)*1.0e-5 end do write (1) a end do close(1) end program mkf5 Input line: number-of-process 100000 100000 7.1 Environment =============== System: CentOS 5, kernel 2.6.21, pvfs-2.6.3 ver_linux: If some fields are empty or look unusual you may have an old version. Compare to the current minimal requirements in Documentation/Changes. Linux luise17.cluster 2.6.21 #1 SMP Fri Apr 27 10:08:35 CEST 2007 x86_64 x86_64 x86_64 GNU/Linux Gnu C 4.1.1 Gnu make 3.81 binutils 2.17.50.0.6-2.el5 util-linux 2.13-pre7 mount 2.13-pre7 module-init-tools 3.3-pre2 e2fsprogs 1.39 pcmciautils 014 quota-tools 3.13. PPP 2.4.4 Linux C Library > libc.2.5 Dynamic linker (ldd) 2.5 Procps 3.2.7 Net-tools 1.60 Kbd 1.12 oprofile 0.9.2 Sh-utils 5.97 udev 095 wireless-tools 28 Modules Loaded pvfs2 autofs4 hidp rfcomm l2cap bluetooth sunrpc iptable_filter ip_tables ip6t_REJECT xt_tcpudp ip6table_filter ip6_tables x_tables ipv6 video sbs i2c_ec button battery asus_acpi ac lp floppy sg i2c_nforce2 ib_mthca ib_mad k8temp pcspkr ib_core hwmon i2c_core e100 tg3 mii parport_pc parport serio_raw dm_snapshot dm_zero dm_mirror dm_mod mptfc mptscsih scsi_transport_fc mptbase ext3 jbd ehci_hcd ohci_hcd uhci_hcd sata_nv libata sd_mod scsi_mod 7.2 Processor ============= processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 37 model name : AMD Opteron(tm) Processor 250 stepping : 1 cpu MHz : 2411.155 cache size : 1024 KB fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm bogomips : 4823.60 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp processor : 1 vendor_id : AuthenticAMD cpu family : 15 model : 37 model name : AMD Opteron(tm) Processor 250 stepping : 1 cpu MHz : 2411.155 cache size : 1024 KB fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm bogomips : 4821.52 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp 7.3. Module information ======================= pvfs2 117808 2 - Live 0xffffffff88377000 autofs4 41160 2 - Live 0xffffffff8836b000 hidp 54592 2 - Live 0xffffffff8835c000 rfcomm 73192 0 - Live 0xffffffff88349000 l2cap 57280 10 hidp,rfcomm, Live 0xffffffff8833a000 bluetooth 88836 5 hidp,rfcomm,l2cap, Live 0xffffffff88323000 sunrpc 196648 1 - Live 0xffffffff882f1000 iptable_filter 19968 0 - Live 0xffffffff882eb000 ip_tables 38624 1 iptable_filter, Live 0xffffffff882e0000 ip6t_REJECT 22592 1 - Live 0xffffffff882d9000 xt_tcpudp 20352 6 - Live 0xffffffff882d3000 ip6table_filter 19776 1 - Live 0xffffffff882cd000 ip6_tables 33216 1 ip6table_filter, Live 0xffffffff882c3000 x_tables 37576 4 ip_tables,ip6t_REJECT,xt_tcpudp,ip6_tables, Live 0xffffffff882b8000 ipv6 364192 27 ip6t_REJECT, Live 0xffffffff8825e000 video 36240 0 - Live 0xffffffff88254000 sbs 33728 0 - Live 0xffffffff8824a000 i2c_ec 22656 1 sbs, Live 0xffffffff88243000 button 25888 0 - Live 0xffffffff8823b000 battery 28040 0 - Live 0xffffffff88233000 asus_acpi 35628 0 - Live 0xffffffff88229000 ac 22856 0 - Live 0xffffffff88222000 lp 30928 0 - Live 0xffffffff88219000 floppy 79848 0 - Live 0xffffffff88204000 sg 53992 0 - Live 0xffffffff881f5000 i2c_nforce2 22976 0 - Live 0xffffffff881ee000 ib_mthca 141700 0 - Live 0xffffffff881ca000 ib_mad 54500 1 ib_mthca, Live 0xffffffff881bb000 k8temp 23040 0 - Live 0xffffffff881b4000 pcspkr 20160 0 - Live 0xffffffff881ae000 ib_core 71040 2 ib_mthca,ib_mad, Live 0xffffffff8819b000 hwmon 20360 1 k8temp, Live 0xffffffff88195000 i2c_core 40704 2 i2c_ec,i2c_nforce2, Live 0xffffffff88188000 e100 53648 0 - Live 0xffffffff88177000 tg3 125060 0 - Live 0xffffffff88155000 mii 22656 1 e100, Live 0xffffffff8814e000 parport_pc 46376 0 - Live 0xffffffff88141000 parport 57100 2 lp,parport_pc, Live 0xffffffff88132000 serio_raw 24388 0 - Live 0xffffffff8812b000 dm_snapshot 33544 0 - Live 0xffffffff88121000 dm_zero 18816 0 - Live 0xffffffff8811b000 dm_mirror 38080 0 - Live 0xffffffff88110000 dm_mod 77136 5 dm_snapshot,dm_zero,dm_mirror, Live 0xffffffff880fc000 mptfc 34056 3 - Live 0xffffffff880f2000 mptscsih 40128 1 mptfc, Live 0xffffffff880e7000 scsi_transport_fc 56516 1 mptfc, Live 0xffffffff880d8000 mptbase 73504 2 mptfc,mptscsih, Live 0xffffffff880c5000 ext3 140560 7 - Live 0xffffffff880a1000 jbd 80496 1 ext3, Live 0xffffffff8808c000 ehci_hcd 50700 0 - Live 0xffffffff8807e000 ohci_hcd 38148 0 - Live 0xffffffff88073000 uhci_hcd 42016 0 - Live 0xffffffff88067000 sata_nv 38788 7 - Live 0xffffffff8805c000 libata 138208 1 sata_nv, Live 0xffffffff88039000 sd_mod 38272 12 - Live 0xffffffff8802e000 scsi_mod 173240 6 sg,mptfc,mptscsih,scsi_transport_fc,libata,sd_mod, Live 0xffffffff88002000 7.4. Loaded driver and hardware information =========================================== /proc/ioports: 0000-001f : dma1 0020-0021 : pic1 0040-0043 : timer0 0050-0053 : timer1 0060-006f : keyboard 0070-0077 : rtc 0080-008f : dma page reg 00a0-00a1 : pic2 00c0-00df : dma2 00f0-00ff : fpu 0170-0177 : 0000:00:06.0 01f0-01f7 : 0000:00:06.0 02f8-02ff : serial 0376-0376 : 0000:00:06.0 03c0-03df : vga+ 03f2-03f5 : floppy 03f6-03f6 : 0000:00:06.0 03f7-03f7 : floppy DIR 03f8-03ff : serial 0cf8-0cff : PCI conf1 1000-101f : 0000:00:01.1 1400-140f : 0000:00:06.0 1400-1407 : ide0 1408-140f : ide1 1410-141f : 0000:00:07.0 1410-141f : sata_nv 1420-142f : 0000:00:08.0 1420-142f : sata_nv 1430-1433 : 0000:00:07.0 1430-1433 : sata_nv 1434-1437 : 0000:00:07.0 1434-1437 : sata_nv 1438-143f : 0000:00:07.0 1438-143f : sata_nv 1440-1447 : 0000:00:07.0 1440-1447 : sata_nv 1448-144b : 0000:00:08.0 1448-144b : sata_nv 144c-144f : 0000:00:08.0 144c-144f : sata_nv 1450-1457 : 0000:00:08.0 1450-1457 : sata_nv 1458-145f : 0000:00:08.0 1458-145f : sata_nv 2000-2fff : PCI Bus #01 2000-20ff : 0000:01:06.0 2400-243f : 0000:01:08.0 2400-243f : e100 3000-3fff : PCI Bus #19 3000-30ff : 0000:19:03.0 5000-503f : 0000:00:01.1 5000-503f : pnp 00:02 5000-503f : nForce2_smbus 5040-507f : 0000:00:01.1 5040-507f : pnp 00:02 5040-507f : nForce2_smbus 8000-807f : pnp 00:02 8000-8003 : ACPI PM1a_EVT_BLK 8004-8005 : ACPI PM1a_CNT_BLK 8008-800b : ACPI PM_TMR 8010-8015 : ACPI CPU throttle 801c-801c : ACPI PM2_CNT_BLK 8020-8027 : ACPI GPE0_BLK 8080-80ff : pnp 00:02 8400-847f : pnp 00:02 8480-84ff : pnp 00:02 8800-887f : pnp 00:02 8880-88ff : pnp 00:02 /proc/iomem: 00000000-000987ff : System RAM 00000000-00000000 : Crash kernel 00098800-0009ffff : reserved 000c2000-000fffff : reserved 00100000-bff1ffff : System RAM 01000000-0122fb27 : Kernel code 0122fb28-0134777f : Kernel data 08000000-0bffffff : GART bff20000-bff25fff : ACPI Tables bff26000-bff7ffff : ACPI Non-volatile Storage bff80000-bfffffff : reserved c2000000-c20fffff : PCI Bus #01 c2000000-c201ffff : 0000:01:06.0 c2100000-c21fffff : PCI Bus #19 c2100000-c21fffff : 0000:19:03.0 c2200000-c22fffff : PCI Bus #1a c2200000-c220ffff : 0000:1a:09.0 c2210000-c221ffff : 0000:1a:09.1 dc000000-dc000fff : 0000:00:02.0 dc000000-dc000fff : ohci_hcd dc001000-dc0010ff : 0000:00:02.1 dc001000-dc0010ff : ehci_hcd dc002000-dc002fff : 0000:00:07.0 dc002000-dc002fff : sata_nv dc003000-dc003fff : 0000:00:08.0 dc003000-dc003fff : sata_nv dc100000-ddffffff : PCI Bus #01 dc100000-dc100fff : 0000:01:06.0 dc101000-dc101fff : 0000:01:08.0 dc101000-dc101fff : e100 dc120000-dc13ffff : 0000:01:08.0 dc120000-dc13ffff : e100 dd000000-ddffffff : 0000:01:06.0 de000000-de0fffff : PCI Bus #02 de000000-de0fffff : 0000:02:00.0 de06174c-de06174f : ib_mthca de072000-de0720ff : ib_mthca de080680-de08069b : ib_mthca de082a50-de082a8f : ib_mthca de0f00d8-de0f00df : ib_mthca de800000-deffffff : PCI Bus #02 de800000-deffffff : 0000:02:00.0 de800000-deffffff : ib_mthca df000000-df000fff : IOAPIC 1 df000000-df000fff : 0000:18:0a.1 df001000-df001fff : IOAPIC 2 df001000-df001fff : 0000:18:0b.1 df100000-df1fffff : PCI Bus #19 df100000-df10ffff : 0000:19:03.0 df110000-df113fff : 0000:19:03.0 df200000-df2fffff : PCI Bus #1a df200000-df20ffff : 0000:1a:09.0 df200000-df20ffff : tg3 df210000-df21ffff : 0000:1a:09.1 df210000-df21ffff : tg3 e0000000-efffffff : reserved fec00000-fec00fff : IOAPIC 0 fec00000-fec003ff : reserved fee00000-fee00fff : Local APIC fefff000-feffffff : pnp 00:00 fff80000-ffffffff : reserved 100000000-23fffffff : System RAM 7.5. PCI information ==================== 00:00.0 Memory controller: nVidia Corporation CK804 Memory Controller (rev a3) Subsystem: Tyan Computer Unknown device 2892 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- SERR- TAbort- SERR- 00:01.1 SMBus: nVidia Corporation CK804 SMBus (rev a2) Subsystem: Tyan Computer Unknown device 2892 Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- Reset- FastB2B- 00:0d.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- TAbort- Reset- FastB2B- Capabilities: [40] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable+ Address: 00000000fee00000 Data: 4049 Capabilities: [58] HyperTransport: MSI Mapping Capabilities: [80] Express Root Port (Slot+) IRQ 0 Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag- Device: Latency L0s <512ns, L1 <4us Device: Errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+ Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ Device: MaxPayload 128 bytes, MaxReadReq 512 bytes Link: Supported Speed 2.5Gb/s, Width x4, ASPM L0s, Port 1 Link: Latency L0s <512ns, L1 <4us Link: ASPM Disabled RCB 64 bytes CommClk- ExtSynch- Link: Speed 2.5Gb/s, Width x4 Slot: AtnBtn- PwrCtrl- MRL- AtnInd- PwrInd- HotPlug- Surpise- Slot: Number 2, PowerLimit 25.000000 Slot: Enabled AtnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- Slot: AttnInd Off, PwrInd On, Power- Root: Correctable- Non-Fatal- Fatal- PME- 00:0e.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- TAbort- Reset- FastB2B- Capabilities: [40] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [48] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable+ Address: 00000000fee00000 Data: 4051 Capabilities: [58] HyperTransport: MSI Mapping Capabilities: [80] Express Root Port (Slot+) IRQ 0 Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag- Device: Latency L0s <512ns, L1 <4us Device: Errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+ Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ Device: MaxPayload 128 bytes, MaxReadReq 512 bytes Link: Supported Speed 2.5Gb/s, Width x16, ASPM L0s, Port 0 Link: Latency L0s <512ns, L1 <4us Link: ASPM Disabled RCB 64 bytes CommClk- ExtSynch- Link: Speed 2.5Gb/s, Width x16 Slot: AtnBtn- PwrCtrl- MRL- AtnInd- PwrInd- HotPlug- Surpise- Slot: Number 1, PowerLimit 75.000000 Slot: Enabled AtnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- Slot: AttnInd Off, PwrInd On, Power- Root: Correctable- Non-Fatal- Fatal- PME- 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- Reset- FastB2B- Capabilities: [a0] PCI-X bridge device Secondary Status: 64bit+ 133MHz+ SCD- USC- SCO- SRD- Freq=133MHz Status: Dev=18:0a.0 64bit+ 133MHz+ SCD- USC- SCO- SRD- Upstream: Capacity=14 CommitmentLimit=65535 Downstream: Capacity=2 CommitmentLimit=65535 Capabilities: [b8] HyperTransport: Interrupt Discovery and Configuration Capabilities: [c0] HyperTransport: Slave or Primary Interface !!! Possibly incomplete decoding Command: BaseUnitID=10 UnitCnt=2 MastHost- DefDir- Link Control 0: CFlE- CST- CFE- TAbort- SERR- TAbort- SERR- TAbort- Reset- FastB2B- Capabilities: [a0] PCI-X bridge device Secondary Status: 64bit+ 133MHz+ SCD- USC- SCO- SRD- Freq=100MHz Status: Dev=18:0b.0 64bit+ 133MHz+ SCD- USC- SCO- SRD- Upstream: Capacity=14 CommitmentLimit=65535 Downstream: Capacity=2 CommitmentLimit=65535 Capabilities: [b8] HyperTransport: Interrupt Discovery and Configuration 18:0b.1 PIC: Advanced Micro Devices [AMD] AMD-8131 PCI-X IOAPIC (rev 01) (prog-if 10 [IO-APIC]) Subsystem: Advanced Micro Devices [AMD] AMD-8131 PCI-X IOAPIC Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR-