I caught that oops when trying 2.4.21-pre2, the oops clearly occurs when
the ide-tape module is unloaded. When ide-tape is compiled in the kernel
everything is fine. Despite that oops the corrections on ide-tape are 
just fine,
i couldn't get 2.4.x kernel working correctly with tape drive(Oops and host
completly frozen, no serial console), and now i have no more problem.

Host is a Compaq ML350, but same thing occurs with DL380. Oops occurs in 
both
SMP and UP environments.
Pertinant part of dmesg(ide-tape in kernel):
 >Uniform Multi-Platform E-IDE driver Revision: 7.00beta-2.4
 >ide: Assuming 33MHz system bus speed for PIO modes; override with 
idebus=xx
 >SvrWks OSB4: IDE controller at PCI slot 00:0f.1
 >SvrWks OSB4: chipset revision 0
 >SvrWks OSB4: not 100% native mode: will probe irqs later
 >    ide0: BM-DMA at 0x3400-0x3407, BIOS settings: hda:DMA, hdb:DMA
 >    ide1: BM-DMA at 0x3408-0x340f, BIOS settings: hdc:pio, hdd:pio
 >hda: Compaq CRD-8402B, ATAPI CD/DVD-ROM drive
 >hdb: Seagate STT20000A, ATAPI TAPE drive
 >ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
 >hdb: DMA disabled
 >ide-tape: hdb <-> ht0: Seagate STT20000A rev 8A51
 >ide-tape: hdb <-> ht0: 1000KBps, 6*54kB buffer, 9720kB pipeline, 110ms 
tDSC

Feel free to ask more details.

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-- FORT David - david.fort@intranode.com --
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