Messages in this thread | | | Date | Mon, 23 Jun 2003 10:09:12 +0200 | From | Jens Axboe <> | Subject | Re: Linux 2.5.73 - panic (freed memory) on CD-Recorder errors |
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On Mon, Jun 23 2003, Pavel Roskin wrote: > Hello! > > I have been experiencing kernel panics with 2.5.x kernels when writing > oversized images like Knoppix to low-quality CDs using the IDE driver > without SCSI emulation. > > Finally I have found a very simple way to reproduce the panic immediately > and without sacrificing a blank CD. Just try writing over a recorded disc > in the dummy mode (i.e. with the laser turned off). > > I have captured the panic on the serial console. cdrecord was running on > that terminal as well, so you see the order in which it happened. The > kernel .config file and the kernel messages (without serial console being > active) are attached. > > This panic occurred on Linux 2.5.73, but I remember the same function > names in the stack trace with older 2.5.x kernels when I was writing > Knoppix. > > Note 6b6b6b6b in the eax and esi registers and on the stack. That must be > freed memory. __end_that_request_first() is a static function in > drivers/block/ll_rw_blk.c
That doesn't look good. I'll try and reproduce + fix here, thanks for the report.
-- Jens Axboe
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