Panic on boot with 2.6.18-mm3 on 4-CPU (PIII, 700Mhz) NUMAQ system. This machine boots fine with 2.6.18-mm1 with an almost identical config file. config file, lspci-vvv and complete dmesg attached. Pls let me know if you need more info. Suka BUG: unable to handle kernel NULL pointer dereference at virtual address 00000004 printing eip: c024e80c *pde = 00529001 *pte = 00000000 Oops: 0000 [#1] SMP last sysfs file: Modules linked in: CPU: 0 EIP: 0060:[] Not tainted VLI EFLAGS: 00010286 (2.6.18-mm3 #1) EIP is at pci_call_probe+0x1c/0xe0 eax: 00000000 ebx: dfe63c00 ecx: c10fca90 edx: c048ad60 esi: dfe63c00 edi: 0000000f ebp: dfcacf20 esp: c10ffe70 ds: 007b es: 007b ss: 0068 Process swapper (pid: 1, ti=c10fe000 task=c10fca90 task.ti=c10fe000) Stack: dfe63c00 ffffffed ffffffed dfe63c00 c048b1c0 c024e935 c048b1c0 dfe63c00 c048ad60 c048b1c0 dfe63c00 c048b1f4 c024e97f c048b1c0 dfe63c00 dfe63c48 dfcacf20 c0276069 dfe63c48 00000286 dfff9060 000000d0 c048b1f4 dfcacf20 Call Trace: [] __pci_device_probe+0x65/0x80 [] pci_device_probe+0x2f/0x50 [] really_probe+0xf9/0x100 [] driver_probe_device+0xc8/0xe0 [] klist_next+0x5d/0xa0 [] __driver_attach+0x0/0xa0 [] __driver_attach+0x90/0xa0 [] bus_for_each_dev+0x69/0x80 [] driver_attach+0x25/0x30 [] __driver_attach+0x0/0xa0 [] bus_add_driver+0x73/0x140 [] __pci_register_driver+0x74/0x90 [] tulip_init+0x29/0x30 [] do_initcalls+0x42/0x140 [] register_irq_proc+0xab/0xd0 [] init+0x0/0x1a0 [] init_irq_proc+0x39/0x50 [] init+0x0/0x1a0 [] init+0x61/0x1a0 [] kernel_thread_helper+0x7/0x1c ======================= Code: 74 92 eb 8e 8d 74 26 00 8d bc 27 00 00 00 00 57 56 53 83 ec 08 8b 5c 24 1c 89 e0 25 00 e0 ff ff 8b 08 8b 43 10 8b 79 5c 8b 40 44 <8b> 50 04 85 d2 78 11 0f a3 15 c0 9f 4e c0 19 c0 85 c0 0f 85 8c EIP: [] pci_call_probe+0x1c/0xe0 SS:ESP 0068:c10ffe70 <0>Kernel panic - not syncing: Attempted to kill init!