2.6.13-rc3 (ide ?) kernel crash

[Maxim Kozover <maximkoz@netvision.net.il>]

Hi!
Trying 2.6.13-rc3 for Supermicro dual Xeon x86_64 with maxcpus=1 (because of
hyperthreading bug) I get an ide-related (?) kernel crash:
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
hdb: HL-DT-STCD-RW/DVD DRIVE GCC-4240N, ATAPI CD/DVD-ROM drive
ide1: I/O resource 0x170-0x177 not free.
ide1: ports already in use, skipping probe
Unable to handle kernel NULL pointer dereference at 0000000000000020 RIP:
<ffffffff80297940>{init_irq+448}
PGD 0
Oops: 0000 [1] SMP
CPU 0
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.13-rc3
RIP: 0010:[<ffffffff80297940>] <ffffffff80297940>{init_irq+448}
RSP: 0018:ffff81007ff29e38  EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000007580 RCX: 0000000000000000
RDX: ffff810037e39500 RSI: 00000000000000d0 RDI: 0000000000000198
RBP: ffffffff804f5200 R08: 0000000000000030 R09: 0000000000000002
R10: 000000000000000e R11: 0000000000000000 R12: ffffffff804fc780
R13: 00000000ffffffff R14: 0000ffffffff8010 R15: ffffffff8051bfb0
FS:  0000000000000000(0000) GS:ffffffff8050f800(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000000020 CR3: 0000000000101000 CR4: 00000000000006e0
Process swapper (pid: 1, threadinfo ffff81007ff28000, task ffff81007ff274d0)
Stack: 0000000000000003 0000000000000246 0000000000000000 0000000000000000
       0000000000000246 ffffffff804f5200 ffffffff804f5220 0000000000000001
       0000000000000001 0000ffffffff8010
Call Trace:<ffffffff80298138>{hwif_init+328} <ffffffff80298443>{ideprobe_init+131}
       <ffffffff801be662>{create_proc_entry+146} <ffffffff8053a0a9>{ide_generic_init+9}
       <ffffffff8010b249>{init+505} <ffffffff8010e93f>{child_rip+8}
       <ffffffff8010b050>{init+0} <ffffffff8010e937>{child_rip+0}


Code: 48 8b 40 20 48 0f b6 80 98 00 00 00 0f b6 90 c0 55 49 80 e8
RIP <ffffffff80297940>{init_irq+448} RSP <ffff81007ff29e38>
CR2: 0000000000000020
 <0>Kernel panic - not syncing: Attempted to kill init!

Please advise.

Thanks,

Maxim Kozover.

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