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. - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html