I'm trying to track down why Libata/SCSI is hanging after an error -- in this case a result from a ATAPI device to a "test unit ready" packet cmd. The sequence of events are as follows (HSATA is my driver). My ISR gets called when the error (status=0x51/error=0x64) is received by my host controller; my ISR ends up calling qc_complete. An error is reported by the scsi error handler kernel thread. I'm using 2.6.9
ata_scsi_queuecmd ata_scsi_dump_cdb: CDB (1:0,0,0) 00 00 00 00 00 00 00 00 00 ata_scsi_translate atapi_xlat HSATA : <6>hsata_qc_prep: not doing DMA - exiting ata_qc_issue_prot: ATA_PROT_ATAPI_NODATA ata_tf_load_mmio: feat 0x0 nsect 0x0 lba 0x0 0x0 0x20 ata_tf_load_mmio: device 0xA0 ata_exec_command_mmio: ata1: cmd 0xA0 <<ATAPI PACKET cmd>> ata_scsi_translate: EXIT atapi_packet_task: ENTER atapi_packet_task: send cdb <<"test unit ready" (0x00) cmd>> HSATA : hsata_isr: <3>STATUS ERROR (0x51) HSATA : hsata_isr: <3>ERROR REG = 0x64 HSATA : <6>hsata_isr: INTERRUPT ISR NODATA irq=21 ata_qc_complete <<called as result of interrupt>> HSATA : <4>hsata_scsi_error WARNING: uid=1 tid=-1 ata_scsi_error: ENTER <<.eh_strategy_handler>> HSATA : <4>hsata_eng_timeout WARNING: id=1 magic=13 HSATA : <3>hsata_eng_timeout ERROR: ata1: BUG: timeout without command, exiting ata_scsi_error: EXIT Any ideas to point me in the right direction? I saw another thread on scsi errors and hanging and decrementing ->host_failed in ata_scsi_error(), which my version of libata-scsi does. Thanks! -mat Mat Loikkanen Synopsys, Inc. - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
