Messages in this thread | | | Date | Mon, 19 Jan 2004 09:15:13 -0800 | From | "Randy.Dunlap" <> | Subject | Re: PROBLEM: Panic reading EFS CDs on SCSI CD drives through loop |
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On Mon, 19 Jan 2004 13:45:24 +0200 (EET) Atro Tossavainen <atossava@cc.helsinki.fi> wrote:
| [1.] Reading files from EFS CD through loop-mounted SCSI CD causes panic | | [2.] I am attempting to read Silicon Graphics IRIX installation CDs on | SCSI CD drives, either real SCSI or emulated IDE-SCSI drives. | | Since SCSI CD-ROMs can't set blocksize (IDE-SCSI emulated drives | included), I would usually do this with an IDE drive, disabling | ide-scsi temporarily if applicable. However, the following article | | http://groups.google.fi/groups?selm=8765hq3j2u.fsf%40ID-48333.user.dfncis.de | | claims that by using the loop interface, it should be possible to | use EFS CDs with SCSI drives, too. | | I have tried this as follows: | | losetup /dev/loop0 /dev/scd0 | mount -r -t efs /dev/loop0 /cdrom | cd /cdrom | tar cf - . | tar xv -C/somewhere/else -f- | | It reads a few files, then panics on a large file. If I am running | X11, the only symptom I see is that the machine freezes totally and | the Caps Lock and Scroll Lock lights on the keyboard start blinking. | If I'm in the text console, it displays the message: | | Kernel panic: scsi_free:Trying to free unused memory
Are there some other messages associated with this, like a BUG or stack dump? Those could be helpful.
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