[SOLVED] System get stuck on boot when disk is in CD\DVD-drive

Himilhil · 11-22-2009, 09:48 AM

If there is a disk (no matter, CD or DVD, with many files or with one file on it, etc.) in CD\DVD-drive when Linux is booting, system get stuck. Delay in booting continues approximately 15 seconds. In the course of delay LED on CD-drive becomes on for a short while. When a drive is empty system boots without this delay. Here is some information about my hardware:

motherboard: Gigabyte GA-MA770-UD3 (BIOS version: F2);
CD\DVD-drive: NEC DVD-RW ND-3520A (3rd master);
harddrive: Seagate ST380817AS (1st master).

There is an output of dmesg in attachment. What could be a cause of problem?

amani · 11-22-2009, 11:09 AM

It is fuse module related. Disable it or investigate further.

http://omake.metaprl.org/prerelease/omake-dll-fuse.html

Himilhil · 11-22-2009, 12:14 PM

Quote:

Originally Posted by amani

It is fuse module related. Disable it or investigate further.

I can't reject fuse because I use it for mounting NTFS volumes. I also need it for mounting SSHFS in further.
On another machine with Slackware 12.2 I also use fuse but I haven't this problem there.

Himilhil · 12-03-2009, 01:21 PM

I also get delay when I call mount /mnt/cdrom first time after system boot. In dmesg after this I see these records:

Quote:

hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
hda: cdrom_decode_status: error=0x44 <3>{ AbortedCommand LastFailedSense=0x04 }
ide: failed opcode was: unknown
hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
hda: cdrom_decode_status: error=0x44 <3>{ AbortedCommand LastFailedSense=0x04 }
ide: failed opcode was: unknown
hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
hda: cdrom_decode_status: error=0x44 <3>{ AbortedCommand LastFailedSense=0x04 }
ide: failed opcode was: unknown
hda: cdrom_decode_status: status=0x51 { DriveReady SeekComplete Error }
hda: cdrom_decode_status: error=0x44 <3>{ AbortedCommand LastFailedSense=0x04 }
ide: failed opcode was: unknown
hda: DMA disabled
hda: ATAPI reset complete
ISO 9660 Extensions: Microsoft Joliet Level 3
ISO 9660 Extensions: RRIP_1991A

The following record is added to /var/log/messages:

Quote:

Dec 3 21:28:36 mylair kernel: hda: DMA disabled

Himilhil · 12-07-2009, 01:51 PM

The cause is found. For some reason my optical drive can't work in DMA mode. It doesn't support DMA in Linux as well as in Windows. I don't know why. Linux try to work with DVD drive by DMA when booting and get stuck. Solution: switch off DMA for DVD drive at system boot.