http://bugzilla.kernel.org/show_bug.cgi?id=11803 Summary: sr_mod: CDROM_DRIVE_STATUS ioctl causes tray to be closed Product: SCSI Drivers Version: 2.5 KernelVersion: 2.6.27-2 Platform: All OS/Version: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Other AssignedTo: scsi_drivers-other@xxxxxxxxxxxxxxxxxxxx ReportedBy: martin.pitt@xxxxxxxxxx Latest working kernel version: 2.6.24 (maybe later) Earliest failing kernel version: 2.6.27 (maybe earlier) Distribution: Ubuntu 8.10 Hardware Environment: - standard ATAPI CD-ROM drive which works through sr_mod (e. g. PIONEER DVD-RW DVR-212) - not using IDE drivers, but libata and pata (PATA_AMD in my case) Software Environment: - single user mode Problem Description: As reported in https://launchpad.net/bugs/283316 and a couple of duplicates, CD-ROM drives which are opened/ejected immediately close again. This is due to hal polling the device every 2 seconds for an inserted medium for automounting. The reason is that the CDROM_DRIVE_STATUS ioctl now causes an open CD tray to get closed, instead of just returning CDS_TRAY_OPEN and leaving the tray alone (as in earlier kernel releases). Unfortunately I cannot precisely tell at which kernel version it regressed, since the CD drive of my workstation doesn't support mechanical closing (one of those external Dell drives). I built a minimal upstream 2.7.27.2 vanilla kernel with just enough PATA_AMD and SCSI stuff to boot and reproduce this. Given the reported duplicates, it is not specific to a CD ROM drive model or architecture (I reproduced it on x86_64, many reporters are on i386). IANAKD, but a cursory glance at http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=history;f=drivers/scsi/sr_ioctl.c revealed that there weren't any changes since about 2.6.24 (where it still worked fine). So I'm afraid I'm lost where to look. Steps to reproduce: - Open CD tray (CD drive must support mechanical closing) - perl -e 'open F, "/dev/scd0"; ioctl (F, 0x5326, 0x7fffffff);' -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
