Date: 26 Nov 2001 20:52:40 +0100 From: Tom Wirschell <T.Wirschell@fin.pinkroccade.nl> To: aic7xxx@freebsd.org Subject: Still problems with SCSI scanning... Message-ID: <1006804370.555.0.camel@NIL8>
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I've reported scanning problems in here before, and was basically told to check the cabling/termination in my system. But I'm getting ahead of myself. I've got an Adaptec 2930U2W SCSI adapter, with 3 internal SCSI disks, 1 internal CDROM, 1 internal CDWriter and 1 external scanner. The problem I have is that while scanning when running a stock Linux 2.4.14 kernel, every so often the scanner just stops in mid-scan, for no apparent reason. With it, the entire SCSI subsystem goes into full stop, and my machine hangs. The only recourse it a reboot. When using kernel 2.2.19 the scanner would also stop, wait about a minute, the SCSI bus receives a reset and from that point on I get messages about "unexpected busfree" in the logs (each time such a message pops up, the scanner stops a few seconds, then continues) and eventually the scanner will stop and if I'm lucky and manage to force a SCSI reset (starting gtoaster usually does the trick) we go back to the "unexpected busfree" messages. If I'm unlucky, it locks up solid. Here's a link to the previous message I posted about this problem: http://www.luga.at/mailing-lists/aic7xxx/msg10704.html I now have SCSI logging facility compiled into the kernel. I've also setup a second machine to play loghost for this machine to make sure the logs are saved when the fertiliser nears the propellor. The last time it took a plunge, the loghost received this message: --- messages:Nov 26 19:33:35 lev8 kernel: (scsi0:A:0:0): parity error detected in Message-in phase. SEQADDR(0x1a6) SCSIRATE(0x95) --- Since my last posting I've replaced just about every SCSI cable in the system, and added active terminators to the ends of all the cables. Hell, I even replaced the scanner (for different reasons of course :D). Schematically, this is what my setup looks like: Scanner-- 1.8m HD ---+ | External ========================================== +-+-+ Internal | | +--| A |--+ | | | | | +---+ 75 cm 50-pin flat cable MAG LVD-5T 68PIN 1.25m | | +- CDROM IBM HD(8)--+ | Quantum Atlas V-+ +- CD Writer IBM HD(9)--+ | | AT AT AT=Active Terminator. A=Adaptec 2930U2W On the scanner-side, it's impossible to add a terminator because the scanner doesn't carry a plug for connecting beyond it. With my previous scanner this was possible and I put an active terminator after it aswell, all to no avail. Now this 1.8m external cable is one *THICK* mutha. A 90cm cable was also available, but using such a smaller cable is impractible for my specific setup. Both internal cables have recently been replaced aswell. This is one *SERIOUSLY* weird problem I've got here. In his last message to me Justin told me he needed more logging output to see why the driver didn't recover. I'll turn on the logging facility and, for a change, hope it'll choke. If there's anything in the above that makes the knowledgable people on this list go 'But ofcourse!', please lemme know. While I'm at it, I know for a fact that the Atlas V is 80 mb/s. Why is it reported as 40mb/s in dmesg? Normal behaviour, or signs of other problems? dmesg and other stuff included below. Sincerely, Tom Wirschell -- "...very few phenomena can pull someone out of Deep Hack Mode, with two noted exceptions: being struck by lightning, or worse, your *computer* being struck by lightning." # cat /proc/scsi/scsi Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: QUANTUM Model: ATLAS_V_18_WLS Rev: 0200 Type: Direct-Access ANSI SCSI revision: 03 Host: scsi0 Channel: 00 Id: 02 Lun: 00 Vendor: PIONEER Model: DVD-ROM DVD-304 Rev: 1.03 Type: CD-ROM ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 04 Lun: 00 Vendor: PLEXTOR Model: CD-R PX-R820T Rev: 1.07 Type: CD-ROM ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 05 Lun: 00 Vendor: HP Model: C7670A Rev: 3945 Type: Processor ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 08 Lun: 00 Vendor: IBM Model: DDRS-39130W Rev: S97B Type: Direct-Access ANSI SCSI revision: 02 Host: scsi0 Channel: 00 Id: 09 Lun: 00 Vendor: IBM Model: DDRS-39130W Rev: S97B Type: Direct-Access ANSI SCSI revision: 02 # cat /proc/scsi/aic7xxx/0 Adaptec AIC7xxx driver version: 6.2.4 aic7890/91: Ultra2 Wide Channel A, SCSI Id=7, 32/253 SCBs Channel A Target 0 Negotiation Settings User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit) Goal: 40.000MB/s transfers (20.000MHz, offset 63, 16bit) Curr: 40.000MB/s transfers (20.000MHz, offset 63, 16bit) Channel A Target 0 Lun 0 Settings Commands Queued 26095 Commands Active 0 Command Openings 64 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 1 Negotiation Settings User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit) Channel A Target 2 Negotiation Settings User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit) Goal: 40.000MB/s transfers (40.000MHz, offset 127) Curr: 3.300MB/s transfers Channel A Target 2 Lun 0 Settings Commands Queued 1 Commands Active 0 Command Openings 1 Max Tagged Openings 0 Device Queue Frozen Count 0 Channel A Target 3 Negotiation Settings User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit) Channel A Target 4 Negotiation Settings User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit) Goal: 40.000MB/s transfers (40.000MHz, offset 127) Curr: 3.300MB/s transfers Channel A Target 4 Lun 0 Settings Commands Queued 1 Commands Active 0 Command Openings 1 Max Tagged Openings 0 Device Queue Frozen Count 0 Channel A Target 5 Negotiation Settings User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit) Goal: 3.300MB/s transfers Curr: 3.300MB/s transfers Channel A Target 5 Lun 0 Settings Commands Queued 1 Commands Active 0 Command Openings 1 Max Tagged Openings 0 Device Queue Frozen Count 0 Channel A Target 6 Negotiation Settings User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit) Channel A Target 7 Negotiation Settings User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit) Channel A Target 8 Negotiation Settings User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit) Goal: 40.000MB/s transfers (20.000MHz, offset 15, 16bit) Curr: 40.000MB/s transfers (20.000MHz, offset 15, 16bit) Channel A Target 8 Lun 0 Settings Commands Queued 5 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 9 Negotiation Settings User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit) Goal: 40.000MB/s transfers (20.000MHz, offset 15, 16bit) Curr: 40.000MB/s transfers (20.000MHz, offset 15, 16bit) Channel A Target 9 Lun 0 Settings Commands Queued 5 Commands Active 0 Command Openings 253 Max Tagged Openings 253 Device Queue Frozen Count 0 Channel A Target 10 Negotiation Settings User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit) Channel A Target 11 Negotiation Settings User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit) Channel A Target 12 Negotiation Settings User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit) Channel A Target 13 Negotiation Settings User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit) Channel A Target 14 Negotiation Settings User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit) Channel A Target 15 Negotiation Settings User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit) # dmesg Linux version 2.4.14 (cooper@LEV8) (gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)) #1 Sat Nov 17 22:27:26 GMT 2001 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 0000000028000000 (usable) BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved) On node 0 totalpages: 163840 zone(0): 4096 pages. zone(1): 159744 pages. zone(2): 0 pages. Kernel command line: BOOT_IMAGE=2414 ro root=802 sda=2232,255,63 Initializing CPU#0 Detected 1460.857 MHz processor. Console: colour VGA+ 132x60 Calibrating delay loop... 2916.35 BogoMIPS Memory: 643200k/655360k available (882k kernel code, 11772k reserved, 249k data, 180k init, 0k highmem) Dentry-cache hash table entries: 131072 (order: 8, 1048576 bytes) Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) Mount-cache hash table entries: 16384 (order: 5, 131072 bytes) Buffer-cache hash table entries: 65536 (order: 6, 262144 bytes) Page-cache hash table entries: 262144 (order: 8, 1048576 bytes) CPU: Before vendor init, caps: 0383fbff c1cbfbff 00000000, vendor = 2 Intel machine check architecture supported. Intel machine check reporting enabled on CPU#0. CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 256K (64 bytes/line) CPU: After vendor init, caps: 0383fbff c1cbfbff 00000000 00000000 CPU: After generic, caps: 0383fbff c1cbfbff 00000000 00000000 CPU: Common caps: 0383fbff c1cbfbff 00000000 00000000 CPU: AMD Athlon(tm) XP 1700+ stepping 02 Enabling fast FPU save and restore... done. Enabling unmasked SIMD FPU exception support... done. Checking 'hlt' instruction... OK. POSIX conformance testing by UNIFIX mtrr: v1.40 (20010327) Richard Gooch (rgooch@atnf.csiro.au) mtrr: detected mtrr type: Intel PCI: PCI BIOS revision 2.10 entry at 0xfb180, last bus=1 PCI: Using configuration type 1 PCI: Probing PCI hardware Unknown bridge resource 0: assuming transparent PCI: Using IRQ router VIA [1106/0686] at 00:07.0 PCI: Found IRQ 9 for device 00:07.2 PCI: Sharing IRQ 9 with 00:07.3 Applying VIA southbridge workaround. PCI: Via IRQ fixup for 00:07.2, from 0 to 9 PCI: Via IRQ fixup for 00:07.3, from 255 to 9 Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 apm: BIOS version 1.2 Flags 0x07 (Driver version 1.15) Starting kswapd Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled ttyS00 at 0x03f8 (irq = 4) is a 16550A ttyS01 at 0x02f8 (irq = 3) is a 16550A Real Time Clock Driver v1.10e block: 128 slots per queue, batch=32 PCI: Found IRQ 11 for device 00:0d.0 IRQ routing conflict for 00:07.5, have irq 9, want irq 11 PCI: Sharing IRQ 11 with 00:09.0 3c59x: Donald Becker and others. www.scyld.com/network/vortex.html 00:0d.0: 3Com PCI 3c905C Tornado at 0xe400. Vers LK1.1.16 Linux agpgart interface v0.99 (c) Jeff Hartmann agpgart: Maximum main memory to use for agp memory: 565M agpgart: Detected Via Apollo Pro KT133 chipset agpgart: AGP aperture is 64M @ 0xd8000000 SCSI subsystem driver Revision: 1.00 PCI: Found IRQ 11 for device 00:09.0 IRQ routing conflict for 00:07.5, have irq 9, want irq 11 PCI: Sharing IRQ 11 with 00:0d.0 scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.4 <Adaptec 2930 Ultra2 SCSI adapter> aic7890/91: Ultra2 Wide Channel A, SCSI Id=7, 32/253 SCBs Vendor: QUANTUM Model: ATLAS_V_18_WLS Rev: 0200 Type: Direct-Access ANSI SCSI revision: 03 Vendor: PIONEER Model: DVD-ROM DVD-304 Rev: 1.03 Type: CD-ROM ANSI SCSI revision: 02 Vendor: PLEXTOR Model: CD-R PX-R820T Rev: 1.07 Type: CD-ROM ANSI SCSI revision: 02 Vendor: HP Model: C7670A Rev: 3945 Type: Processor ANSI SCSI revision: 02 Vendor: IBM Model: DDRS-39130W Rev: S97B Type: Direct-Access ANSI SCSI revision: 02 Vendor: IBM Model: DDRS-39130W Rev: S97B Type: Direct-Access ANSI SCSI revision: 02 scsi0:A:0:0: Tagged Queuing enabled. Depth 253 scsi0:A:8:0: Tagged Queuing enabled. Depth 253 scsi0:A:9:0: Tagged Queuing enabled. Depth 253 Attached scsi disk sda at scsi0, channel 0, id 0, lun 0 Attached scsi disk sdb at scsi0, channel 0, id 8, lun 0 Attached scsi disk sdc at scsi0, channel 0, id 9, lun 0 (scsi0:A:0): 40.000MB/s transfers (20.000MHz, offset 63, 16bit) SCSI device sda: 35861388 512-byte hdwr sectors (18361 MB) Partition check: sda: sda1 sda2 sda3 sda4 (scsi0:A:8): 40.000MB/s transfers (20.000MHz, offset 15, 16bit) SCSI device sdb: 17850000 512-byte hdwr sectors (9139 MB) sdb: sdb1 (scsi0:A:9): 40.000MB/s transfers (20.000MHz, offset 15, 16bit) SCSI device sdc: 17850000 512-byte hdwr sectors (9139 MB) sdc: sdc1 Attached scsi generic sg3 at scsi0, channel 0, id 5, lun 0, type 3 NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP IP: routing cache hash table of 8192 buckets, 64Kbytes TCP: Hash tables configured (established 262144 bind 65536) NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. VFS: Mounted root (ext2 filesystem) readonly. Freeing unused kernel memory: 180k freed Adding Swap: 104416k swap-space (priority -1) parport0: PC-style at 0x378 [PCSPP,EPP] parport0: cpp_daisy: aa5500ff(38) parport0: assign_addrs: aa5500ff(38) parport0: cpp_daisy: aa5500ff(38) parport0: assign_addrs: aa5500ff(38) parport_pc: Via 686A parallel port: io=0x378 NVRM: loading NVIDIA kernel module version 1.0-1541 NVRM: AGPGART: VIA Apollo KT133 chipset NVRM: AGPGART: aperture: 64M @ 0xd8000000 NVRM: AGPGART: aperture mapped from 0xd8000000 to 0xed96f000 NVRM: AGPGART: mode 4x NVRM: AGPGART: allocated 16 pages # for i in /proc/scsi/sg/* ; do echo "=] $i [=" ; cat "$i" ;echo ; done =] /proc/scsi/sg/allow_dio [= 0 =] /proc/scsi/sg/debug [= dev_max(currently)=12 max_active_device=6 (origin 1) scsi_dma_free_sectors=3872 sg_pool_secs_aval=320 def_reserved_size=32768 =] /proc/scsi/sg/def_reserved_size [= 32768 =] /proc/scsi/sg/device_hdr [= host chan id lun type opens qdepth busy online =] /proc/scsi/sg/device_strs [= QUANTUM ATLAS_V_18_WLS 0200 PIONEER DVD-ROM DVD-304 1.03 PLEXTOR CD-R PX-R820T 1.07 HP C7670A 3945 IBM DDRS-39130W S97B IBM DDRS-39130W S97B =] /proc/scsi/sg/devices [= 0 0 0 0 0 4 253 0 1 0 0 2 0 5 0 2 0 1 0 0 4 0 5 0 2 0 1 0 0 5 0 3 0 2 0 1 0 0 8 0 0 0 253 0 1 0 0 9 0 0 0 253 0 1 =] /proc/scsi/sg/host_hdr [= uid busy cpl scatg isa emul =] /proc/scsi/sg/host_strs [= Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.4 <Adaptec 2930 Ultra2 SCSI adapter> aic7890/91: Ultra2 Wide Channel A, SCSI Id=7, 32/253 SCBs =] /proc/scsi/sg/hosts [= 0 0 2 128 0 0 =] /proc/scsi/sg/version [= 30120 Version: 3.1.20 (20010814) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe aic7xxx" in the body of the message
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