On Tue, 2008-10-21 at 15:37 -0700, bugme-daemon@xxxxxxxxxxxxxxxxxxx wrote: > 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);' I'd finger this commit: commit 210ba1d1724f5c4ed87a2ab1a21ca861a915f734 Author: James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> Date: Sat Jan 5 10:39:51 2008 -0600 [SCSI] sr: update to follow tray status correctly It's actually a gentoo patch trying to make tray status report with finer detail. Can you revert it and see if the problem goes away? Thanks, James -- 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
