Hello, I'm trying to use a SCSi scanner (Epson FilmScan 200) with latest SANE and got a strange behaviour from the SCSI layer. I tried with two different adapters (initio and aic7xxx): scsiinfo says: Inquiry command --------------- Relative Address 0 Wide bus 32 0 Wide bus 16 0 Synchronous neg. 0 Linked Commands 0 Command Queueing 0 SftRe 0 Device Type 3 Peripheral Qualifier 0 Removable? 0 Device Type Modifier 0 ISO Version 0 ECMA Version 0 ANSI Version 1 AENC 0 TrmIOP 0 Response Data Format 0 Vendor: EPSON Product: FilmScan 200 Revision level: 1.01 recognition: i91u: PCI Base=0xC000, IRQ=18, BIOS=0xFF000, SCSI ID=7 i91u: Reset SCSI Bus ... scsi4 : Initio INI-9X00U/UW SCSI device driver; Revision: 1.04a Vendor: EPSON Model: FilmScan 200 Rev: 1.01 Type: Processor ANSI SCSI revision: 01 4:0:4:0: Attached scsi generic sg4 type 3 the SANE driver does a SCSi inquiry: [epson2] attach: sending INQUIRY [epson2] >EPSON FilmScan 200 1.01< and then sends out two bytes [epson2] epson_send: size = 2 [epson2] buf[0] 1b . [epson2] buf[1] 40 @ here is where it hangs. the driver expects to read a byte, but there seems to lie the problem.. the driver halts and I have to ctrl-c . after I while, I can hear a reset from the scanner and the kernel hangs completely withtout leaving anything useful on the console or in the logs. sometimes, if I do rmmod sg rmmod initio before the reset, I get this message: Initio INI-9X00U/UW SCSI device driver; Revision: 1.04a did not call scsi_unregister [<e0dd89e2>] exit_this_scsi_driver+0x8a/0xc7 [initio] [<c012e390>] sys_delete_module+0x19a/0x1c5 [<c013da1a>] sys_munmap+0x3a/0x56 [<c01026b5>] syscall_call+0x7/0xb moments later the kernel panics with Fatal exception in interrupt (included in the logs) I tried enabling scsi logging, but since the system is based on SCSI disks, I have some troubles filtering the output: after the ctrl-c: sg_poll: sg4, res=0x104 sg_release: sg4 sg_fasync: sg4, mode=0 sg_remove_sfp: worrisome, 1 writes pending so i've attached it. hope someone can help. -- Best regards, Alessandro Zummo, Tower Technologies - Turin, Italy http://www.towertech.it
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