From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pat LaVarre Subject: Re: SATA ATAPI work in progress Date: 15 May 2004 10:04:00 -0600 Sender: linux-ide-owner@vger.kernel.org Message-ID: <1084637040.3440.5.camel@patibmrh9> References: <1084393233.3999.2.camel@patibmrh9> <40A28BB6.7090204@pobox.com> <1084403654.3196.31.camel@patibmrh9> <40A3E595.8000003@pobox.com><108455 9 000.4017.52.camel@patibmrh9> <40A51604.8070208@pobox.com><1084578453.5 3 4 3. 26.camel@patibmrh9><1084579362.3271.5.camel@patibmrh9> <40A5669B.608 010 8@pobox.com><1084626376.3079.8.camel@patibmrh9> <1084628978.5082.7.ca m el@patibmrh9><40A636D2.3090205@pobox.com> <1084636180.3083.17.camel@patibm rh9><1084636590.3083.25.camel@patibmrh9> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from email-out2.iomega.com ([147.178.1.83]:61417 "EHLO email.iomega.com") by vger.kernel.org with ESMTP id S262132AbUEOQEY (ORCPT ); Sat, 15 May 2004 12:04:24 -0400 In-Reply-To: <1084636590.3083.25.camel@patibmrh9> List-Id: linux-ide@vger.kernel.org To: Jeff Garzik Cc: linux-ide@vger.kernel.org > 2) open O_NONBLOCK ioctl SG_IO > > I tried `plscsi /dev/scd0` i.e. an open O_NONBLOCK/ ioctl SG_IO/ close > of a standard op x12 Inquiry for up to x24 bytes. > > That died in a way that defeated Ctrl+C and `modprobe -r ata-piix`, > though `reboot` worked. I'll try ioctl CDROM_SEND_PACKET next, then > think harder. ioctl CDROM_SEND_PACKET via sf net iomrrdtools gives me same death as ioctl SG_IO, so I blame the open of /dev/scd$n til I hear otherwise. Death occurs as follows. Next I will grep source for "empty request buffer". Pat LaVarre kernel: ata_scsi_dump_cdb: CDB (2:0,0,0) 00 00 00 00 00 00 00 00 00 kernel: ata_scsi_translate: ENTER kernel: ata2(0): empty request buffer kernel: ata_scsi_badcmd: ENTER kernel: ata_scsi_translate: EXIT - badcmd kernel: ata_scsi_dump_cdb: CDB (2:0,0,0) 00 00 00 00 00 00 00 00 00 kernel: ata_scsi_translate: ENTER kernel: ata2(0): empty request buffer kernel: ata_scsi_badcmd: ENTER kernel: ata_scsi_translate: EXIT - badcmd kernel: ata_scsi_dump_cdb: CDB (2:0,0,0) 00 00 00 00 00 00 00 00 00 kernel: ata_scsi_translate: ENTER kernel: ata2(0): empty request buffer kernel: ata_scsi_badcmd: ENTER kernel: ata_scsi_translate: EXIT - badcmd kernel: ata_scsi_dump_cdb: CDB (2:0,0,0) 00 00 00 00 00 00 00 00 00 kernel: ata_scsi_translate: ENTER kernel: ata2(0): empty request buffer kernel: ata_scsi_badcmd: ENTER kernel: ata_scsi_translate: EXIT - badcmd kernel: ata_scsi_dump_cdb: CDB (2:0,0,0) 00 00 00 00 00 00 00 00 00 kernel: ata_scsi_translate: ENTER kernel: ata2(0): empty request buffer kernel: ata_scsi_badcmd: ENTER kernel: ata_scsi_translate: EXIT - badcmd kernel: ata_scsi_dump_cdb: CDB (2:0,0,0) 5a 00 2a 00 00 00 00 00 80 kernel: ata_scsi_translate: ENTER kernel: ata_sg_setup_one: mapped buffer of 128 bytes for read kernel: ata_fill_sg: PRD[0] = (0x46EE00, 0x80) kernel: ata_dev_select: ENTER, ata2: device 0, wait 1 kernel: ata_tf_load_pio: feat 0x5 nsect 0x0 lba 0x0 0x0 0x0 kernel: ata_tf_load_pio: device 0xA0 kernel: ata_exec_command_pio: ata2: cmd 0xA0 kernel: ata_scsi_translate: EXIT kernel: atapi_packet_task: busy wait kernel: atapi_packet_task: send cdb kernel: ata_host_intr: BUS_DMA (host_stat 0x25) kernel: ata_dma_complete: ENTER kernel: ata_dma_complete: host 2, host_stat==0x25, drv_stat==0x51 kernel: ata_sg_clean: unmapping 1 sg elements kernel: ata_scsi_error: ENTER kernel: ata_eng_timeout: ENTER kernel: ata2: BUG: timeout without command kernel: ata_eng_timeout: EXIT kernel: ata_scsi_error: EXIT