IDE cdrom driver shipped in Red Hat Enterprise Linux 4 kernel crashes under cdrom_end_request()

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IDE cdrom driver crashes in interrupt handler ( which can result in a panic mentioning Badness in i8042_panic_blink at drivers/input/serio/i8042.c:992 )
IDE cdrom driver crashes within cdrom_end_request() function.

Unable to handle kernel paging request at 0000014a00000030 RIP: 
<ffffffff802581e4>{__end_that_request_first+203}
PML4 8063...

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