Re: Two panic's while burning +700Mb file to cdr (2.4.19-pre7+)

From: Christopher Swingley (
Date: Thu Jun 13 2002 - 17:13:02 EST


* Wolter Kamphuis <> [2002-Jun-13
* 10:26 AKDT]:
> I'm unsuccessfully trying to backup a large 738Mb file to cdr. While
> burning this file the machine panic's. Doing a emergency sync
> (alt+sysrq+s) or emergency unmount (alt+sysrq+u) gives an second
> panic.

Although not exactly the same as your experience, I have a dual CPU
AMD machine that locks up when burning CD-RW disks. The CDRW drive
is an IDE device that is running under SCSI emulation. When I turn
DMA off on that device (/sbin/hdparm -d 0 /dev/hdc) it works fine
without any panics.

In my case there was no Oops, the system simply locked up tight.
The power button was the only option despite having Ctrl-Alt-Delete in
inittab and putting Alt-Sys-Req in the kernel (2.4.18 and 2.4.19-pre7).

Might be worth a try. . .


Christopher S. Swingley           phone: 907-474-2689
Computer Systems Manager          email:
IARC -- Frontier Program          GPG and PGP keys at my web page:
University of Alaska Fairbanks
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This archive was generated by hypermail 2b29 : Sat Jun 15 2002 - 22:00:29 EST