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Subject2.5.62: ide_scsi + sr_mod = kernel panic
In both 2.5.60 and 2.5.62, I'm getting a kernel panic when I attempt to load
the ide-scsi and sr_mod kernel modules at the same time. My hdc is a DVD-ROM
and my hdd is a CD-RW. My chipset is a VIA KT333. Both SCSI emulation and
low-level SCSI support are compiled as modules.

Unable to handle kernel NULL pointer dereference at virtual address 00000000.
printing eip:
*pde = 00000000
Oops: 0000
CPU: 0
EIP: 0000:[<00000000>] Not Tainted
EFLAGS: 00010246
EIP is at 0x0
eax: c02f2fdc ebx: c02f3088 ecx: f7df0040 edx: 00000174
esi: f657f640 esi: f657f640 edi: f7df0040 ebp: 00000001
ds: 0076 es: 0076 ss: 0068

Process swapper (pid: 0, threadinfo=c0294000 task=c025f0a0)
Stack: f8b3cd06 c02f3088 00000174 f657f680 c02f3088 f7df4710
c02f3088 00000000 f7df42c0 0000000f c01cbe99 c00f3088
f657f640 00000000 00000088 0000001e c1a70b80 f7df42c0
c02f3088 c1a70b80 c01cc099 c02f3088 f7df42c0 c02f31bc

Call Trace:
[<f8b3cd06>] idescsi_issue_pc+0x1b6/0x1f0 [ide_scsi]
[<c01cbe99>] start_request+0xf9/0x1b0
[<c01cc099>] ide_do_request+0xf9/0x210
[<c01cc688>] ide_intr+0x128/0x180
[<f8b3c760>] idescsi_pc_intr+0x0/0x2d0 [ide_scsi]
[<c010b527>] do_IRQ+0x97/0x120
[<c0106f70>] default_idle+0x0/0x30
[<c0106f70>] default_idle+0x0/0x30
[<c0109dcc>] common_interrupt+0x18/0x20
[<c0106f70>] default_idle+0x0/0x30
[<c0106f70>] default_idle+0x0/0x30
[<c0106f94>] cpu_idle+0x2e/0x40
[<c0105000>] _stext+0x0/0x30

Code: Bad EIP value.
<0> Panic: Aiee, killing interrupt handler!
In interrupt handler - not syncing
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