Messages in this thread | | | From | "James Bourne" <> | Subject | PROBLEM: drivers/scsi/sd.c - Incorrect Reporting of Blocks and Capacity of Large SCSI Disk Arrays | Date | Fri, 31 Jan 2003 06:07:05 +1000 |
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I have attempt to fill out the Bug Report as per REPORTING-BUGS. I have attempted to forward the report to the respective authors of the appropriate module but the email bounced (-> ericy@andante.org, drew@colorado.edu). Please let me know if I can be of further assistance.
Regards,
James
1. drivers/scsi/sd.c - Incorrect Reporting of Blocks and Capacity of Large SCSI Disk Arrays
2. The size of very large SCSI Disk arrays is incorrectly reported by code in 'drivers/scsi/sd.c' as a result of perhaps inadequate precision of field 'capacity' in structure: 'typedef struct scsi_disk' found in drives/scsi/sd.h.
This problem exists on both a custom 2.4.20 kernel and on a stock RedHat 2.4.18-19.8.0smp kernel. This problem report pertains to the latter kernel.
For example:
SCSI device sdb: -562247552 512-byte hdwr sectors (4294679426 MB) sdb: sdb1 SCSI device sdc: -1997908992 512-byte hdwr sectors (76582 MB) sdc: sdc1
Server: IBM xSeries 220 (2 x PIII 1Ghz, 512MB RAM) HBAs: Onboard Adaptec HBA to 1 x 36GB HDD Offboard Adaptec AHA39160 HBA in slot 4 (64-bit/33Mhz) Channels: Channel A connected to Adaptec Durstor 6220SS Channel B connected to Quantum ATL 1500 (2 x SDLT320, 20-slots) Storage: Adaptec Durstor 6220SS Connected to 3 Adaptec 312R JBODs Each JBOD populated with 8 x 147GB Fujitsu HDD (MAP3147NC) RAID: RAID-3 Array 1 created comprising 14 x HDD (@ 140201MB per spindle) RAID-3 Array 2 created comprising 9 x HDD (@ 140201MB per spindle) Spares: One pool spare allocated Array Capacity Total unformatted capacity for Array 1: 1962814MB (1916.81GB, 1.87TB) Total unformatted capacity for Array 2: 1261809MB (1232.23GB, 1.20TB) Partition Array 1: Single Partition Array 2: Single Partition FileSystem: Array 1: EXT3 Array 2: EXT3
3. scsi, modules, kernel
4. Linux version 2.4.18-19.8.0smp (bhcompile@stripples.devel.redhat.com) (gcc version 3.2 20020903 (Red Hat Linux 8.0 3.2-7)) #1 SMP Thu Dec 12 04:36:25 EST 2002
5. From dmesg:
SCSI subsystem driver Revision: 1.00 scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.8 <Adaptec aic7892 Ultra160 SCSI adapter> aic7892: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs
scsi1 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.8 <Adaptec 3960D Ultra160 SCSI adapter> aic7899: Ultra160 Wide Channel A, SCSI Id=7, 32/253 SCBs
scsi2 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.8 <Adaptec 3960D Ultra160 SCSI adapter> aic7899: Ultra160 Wide Channel B, SCSI Id=7, 32/253 SCBs
blk: queue c251a618, I/O limit 4095Mb (mask 0xffffffff) Vendor: IBM-PSG Model: DDYS-T36950M M Rev: S9HA Type: Direct-Access ANSI SCSI revision: 03 blk: queue c251a418, I/O limit 4095Mb (mask 0xffffffff) Vendor: IBM Model: YGLv3 S2 Rev: 0 Type: Processor ANSI SCSI revision: 02 blk: queue dfd1be18, I/O limit 4095Mb (mask 0xffffffff) scsi0:A:0:0: Tagged Queuing enabled. Depth 253 blk: queue dfd1be18, I/O limit 4095Mb (mask 0xffffffff) Vendor: Adaptec Model: DuraStor 6200S Rev: L421 Type: Direct-Access ANSI SCSI revision: 03 blk: queue dfd01218, I/O limit 4095Mb (mask 0xffffffff) scsi1:A:1:0: Tagged Queuing enabled. Depth 253 blk: queue dfd01218, I/O limit 4095Mb (mask 0xffffffff) Vendor: M4 DATA Model: MagFile Rev: 3.01 Type: Medium Changer ANSI SCSI revision: 02 blk: queue dfce5818, I/O limit 4095Mb (mask 0xffffffff) Vendor: QUANTUM Model: SDLT320 Rev: 2E2E Type: Sequential-Access ANSI SCSI revision: 02 blk: queue dfce5418, I/O limit 4095Mb (mask 0xffffffff) Vendor: QUANTUM Model: SDLT320 Rev: 2E2E Type: Sequential-Access ANSI SCSI revision: 02 blk: queue dfce5018, I/O limit 4095Mb (mask 0xffffffff) Attached scsi disk sda at scsi0, channel 0, id 0, lun 0 Attached scsi disk sdb at scsi1, channel 0, id 1, lun 0 (scsi0:A:0): 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit) SCSI device sda: 71096640 512-byte hdwr sectors (36401 MB) Partition check: sda: sda1 sda2 sda3 (scsi1:A:1): 160.000MB/s transfers (80.000MHz DT, offset 127, 16bit) SCSI device sdb: -562247552 512-byte hdwr sectors (-287870 MB)
6. N/a
7. Environment
7.1 Software
ver_linux:
Linux firedaemon 2.4.18-19.8.0smp #1 SMP Thu Dec 12 04:36:25 EST 2002 i686 i686 i386 GNU/Linux
Gnu C 3.2 Gnu make 3.79.1 util-linux 2.11r mount 2.11r modutils 2.4.18 e2fsprogs 1.27 jfsutils 1.0.17 reiserfsprogs 3.6.2 pcmcia-cs 3.1.31 PPP 2.4.1 isdn4k-utils 3.1pre4 Linux C Library 2.2.93 Dynamic linker (ldd) 2.2.93 Procps 2.0.7 Net-tools 1.60 Kbd 1.06 Sh-utils 2.0.12 Modules Loaded sg nfsd lockd sunrpc sk98lin e100 iptable_filter ip_tables st mousedev keybdev hid input usb-ohci usbcore ext3 jbd aic7xxx sd_mod scsi_mod
7.2 Processor Info
processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 8 model name : Pentium III (Coppermine) stepping : 10 cpu MHz : 999.753 cache size : 256 KB Physical processor ID : 0 Number of siblings : 1 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 1985.67
processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 8 model name : Pentium III (Coppermine) stepping : 10 cpu MHz : 999.753 cache size : 256 KB Physical processor ID : 0 Number of siblings : 1 fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 1997.32
7.3 Modules
sg 37644 0 (autoclean) nfsd 81424 8 (autoclean) lockd 58800 1 (autoclean) [nfsd] sunrpc 84604 1 (autoclean) [nfsd lockd] sk98lin 138624 1 e100 64596 1 iptable_filter 2412 0 (autoclean) (unused) ip_tables 15640 1 [iptable_filter] st 31440 0 (unused) mousedev 5688 1 keybdev 2976 0 (unused) hid 22404 0 (unused) input 6240 0 [mousedev keybdev hid] usb-ohci 22088 0 (unused) usbcore 80512 1 [hid usb-ohci] ext3 72960 3 jbd 56752 3 [ext3] aic7xxx 138452 4 sd_mod 13552 8 scsi_mod 110408 4 [sg st aic7xxx sd_mod]
7.4 Loaded Driver/Hardware Info
0000-001f : dma1 0020-003f : pic1 0040-005f : timer 0060-006f : keyboard 0070-007f : rtc 0080-008f : dma page reg 00a0-00bf : pic2 00c0-00df : dma2 00f0-00ff : fpu 01f0-01f7 : ide0 03c0-03df : vga+ 03f6-03f6 : ide0 03f8-03ff : serial(auto) 0700-070f : ServerWorks OSB4 IDE Controller 0700-0707 : ide0 0708-070f : ide1 0cf8-0cff : PCI conf1 2200-223f : Intel Corp. 82557/8/9 [Ethernet Pro 100] 2200-223f : e100 2300-23ff : Adaptec AIC-7892P U160/m 2400-24ff : Adaptec AHA-3960D / AIC-7899A U160/m 2500-25ff : Adaptec AHA-3960D / AIC-7899A U160/m (#2) 2600-26ff : Syskonnect (Schneider & Koch) Gigabit Ethernet
00000000-0009dbff : System RAM 0009dc00-0009ffff : reserved 000a0000-000bffff : Video RAM area 000c0000-000c7fff : Video ROM 000ca000-000ce7ff : Extension ROM 000f0000-000fffff : System ROM 00100000-1ffebc3f : System RAM 00100000-0026af59 : Kernel code 0026af5a-00375f03 : Kernel data 1ffebc40-1ffeffff : ACPI Tables 1fff0000-1fffffff : reserved efff8000-efffbfff : Syskonnect (Schneider & Koch) Gigabit Ethernet efffd000-efffdfff : Adaptec AHA-3960D / AIC-7899A U160/m (#2) efffd000-efffdfff : aic7xxx efffe000-efffefff : Adaptec AHA-3960D / AIC-7899A U160/m efffe000-efffefff : aic7xxx effff000-efffffff : Adaptec AIC-7892P U160/m effff000-efffffff : aic7xxx f0000000-f7ffffff : S3 Inc. Savage 4 fea00000-feafffff : Intel Corp. 82557/8/9 [Ethernet Pro 100] fea00000-feafffff : e100 feb7e000-feb7efff : ServerWorks OSB4/CSB5 OHCI USB Controller feb7e000-feb7efff : usb-ohci feb7f000-feb7ffff : Intel Corp. 82557/8/9 [Ethernet Pro 100] feb7f000-feb7ffff : e100 feb80000-febfffff : S3 Inc. Savage 4 fec00000-ffffffff : reserved
7.5 PCI Information
00:00.0 Host bridge: ServerWorks CNB20LE Host Bridge (rev 06) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR- Latency: 64, cache line size 08
00:00.1 Host bridge: ServerWorks CNB20LE Host Bridge (rev 06) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64, cache line size 08
00:01.0 VGA compatible controller: S3 Inc. Savage 4 (rev 04) (prog-if 00 [VGA]) Subsystem: IBM: Unknown device 01c5 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 248 (1000ns min, 63750ns max), cache line size 08 Interrupt: pin A routed to IRQ 0 Region 0: Memory at feb80000 (32-bit, non-prefetchable) [size=512K] Region 1: Memory at f0000000 (32-bit, prefetchable) [size=128M] Expansion ROM at <unassigned> [disabled] [size=64K] Capabilities: [dc] Power Management version 1 Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2- ,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:02.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 08) Subsystem: IBM Netfinity 10/100 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 (2000ns min, 14000ns max), cache line size 08 Interrupt: pin A routed to IRQ 27 Region 0: Memory at feb7f000 (32-bit, non-prefetchable) [size=4K] Region 1: I/O ports at 2200 [size=64] Region 2: Memory at fea00000 (32-bit, non-prefetchable) [size=1M] Expansion ROM at <unassigned> [disabled] [size=1M] Capabilities: [dc] Power Management version 2 Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME (D0+,D1+,D2+,D3hot+,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=2 PME-
00:0f.0 ISA bridge: ServerWorks OSB4 South Bridge (rev 50) Subsystem: ServerWorks OSB4 South Bridge Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0
00:0f.1 IDE interface: ServerWorks OSB4 IDE Controller (prog-if 8a [Master SecP PriP]) Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 Region 4: I/O ports at 0700 [size=16]
00:0f.2 USB Controller: ServerWorks OSB4/CSB5 USB Controller (rev 04) (prog- if 10 [OHCI]) Subsystem: ServerWorks OSB4/CSB5 USB Controller Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 (20000ns max), cache line size 08 Interrupt: pin A routed to IRQ 9 Region 0: Memory at feb7e000 (32-bit, non-prefetchable) [size=4K]
01:03.0 SCSI storage controller: Adaptec AIC-7892P U160/m (rev 02) Subsystem: Adaptec AIC-7892P U160/m Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+ Stepping- SERR+ FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 (10000ns min, 6250ns max), cache line size 08 Interrupt: pin A routed to IRQ 28 BIST result: 00 Region 0: I/O ports at 2300 [disabled] [size=256] Region 1: Memory at effff000 (64-bit, non-prefetchable) [size=4K] Expansion ROM at <unassigned> [disabled] [size=128K] Capabilities: [dc] 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-
01:06.0 SCSI storage controller: Adaptec AHA-3960D / AIC-7899A U160/m (rev 01) Subsystem: Adaptec AHA-3960D U160/m Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+ Stepping- SERR+ FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 (10000ns min, 6250ns max), cache line size 08 Interrupt: pin A routed to IRQ 22 BIST result: 00 Region 0: I/O ports at 2400 [disabled] [size=256] Region 1: Memory at efffe000 (64-bit, non-prefetchable) [size=4K] Expansion ROM at <unassigned> [disabled] [size=128K] Capabilities: [dc] 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-
01:06.1 SCSI storage controller: Adaptec AHA-3960D / AIC-7899A U160/m (rev 01) Subsystem: Adaptec AHA-3960D U160/m Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+ Stepping- SERR+ FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 (10000ns min, 6250ns max), cache line size 08 Interrupt: pin B routed to IRQ 23 BIST result: 00 Region 0: I/O ports at 2500 [disabled] [size=256] Region 1: Memory at efffd000 (64-bit, non-prefetchable) [size=4K] Expansion ROM at <unassigned> [disabled] [size=128K] Capabilities: [dc] 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-
01:07.0 Ethernet controller: Syskonnect (Schneider & Koch) Gigabit Ethernet (rev 12) Subsystem: Syskonnect (Schneider & Koch) SK-9843 (1000Base-SX single link) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr+ Stepping- SERR+ FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 (5750ns min, 7750ns max), cache line size 08 Interrupt: pin A routed to IRQ 24 Region 0: Memory at efff8000 (32-bit, non-prefetchable) [size=16K] Region 1: I/O ports at 2600 [size=256] Expansion ROM at <unassigned> [disabled] [size=128K] Capabilities: [48] Power Management version 1 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2- ,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=1 PME- Capabilities: [50] Vital Product Data
7.6 SCSI Information
Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: IBM-PSG Model: DDYS-T36950M M Rev: S9HA Type: Direct-Access ANSI SCSI revision: 03 Host: scsi0 Channel: 00 Id: 08 Lun: 00 Vendor: IBM Model: YGLv3 S2 Rev: 0 Type: Processor ANSI SCSI revision: 02 Host: scsi1 Channel: 00 Id: 01 Lun: 00 Vendor: Adaptec Model: DuraStor 6200S Rev: L421 Type: Direct-Access ANSI SCSI revision: 03 Host: scsi2 Channel: 00 Id: 00 Lun: 00 Vendor: M4 DATA Model: MagFile Rev: 3.01 Type: Medium Changer ANSI SCSI revision: 02 Host: scsi2 Channel: 00 Id: 01 Lun: 00 Vendor: QUANTUM Model: SDLT320 Rev: 2E2E Type: Sequential-Access ANSI SCSI revision: 02 Host: scsi2 Channel: 00 Id: 02 Lun: 00 Vendor: QUANTUM Model: SDLT320 Rev: 2E2E Type: Sequential-Access ANSI SCSI revision: 02
7.7 N/a
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