Hi, The kernel bootup panics with the 2.6.24-mm1 and 2.6.24-git13 kernel while defconfig compiled in for x86_64 (Intel(R) Xeon) box BUG: unable to handle kernel paging request at ffffffffffffffb0 IP: [<ffffffff80413642>] init_irq+0x188/0x444 PGD 203067 PUD 204067 PMD 0 Oops: 0000 [1] SMP CPU 2 Modules linked in: Pid: 1, comm: swapper Not tainted 2.6.24 #1 RIP: 0010:[<ffffffff80413642>] [<ffffffff80413642>] init_irq+0x188/0x444 RSP: 0018:ffff81022f093e00 EFLAGS: 00010287 RAX: ffffffffffffff90 RBX: ffffffff808a9100 RCX: 0000000000000000 RDX: 00000000ffffffff RSI: ffff81022fc039c0 RDI: ffffffff8074dd00 RBP: ffff81022f093e30 R08: ffffffff808af880 R09: 0000000000000002 R10: 0000000000000001 R11: ffff8100000bed60 R12: ffffffff808b0400 R13: ffffffff808b0410 R14: 0000000000000000 R15: ffffffffffffffff FS: 0000000000000000(0000) GS:ffff81022f0883c0(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: ffffffffffffffb0 CR3: 0000000000201000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process swapper (pid: 1, threadinfo ffff81022f092000, task ffff81022f0797d0) Stack: ffff81022f093e30 0000000000000000 ffffffff808a9100 ffffffff808a9120 00000000ffffffed 0000000000000000 ffff81022f093eb0 ffffffff80414425 ffff81022f093ec0 0000000000000000 000000008074e920 0000000000000246 Call Trace: [<ffffffff80414425>] ide_device_add_all+0xb27/0xe1b [<ffffffff807d2884>] ide_generic_init+0x3a/0x3e [<ffffffff807b473b>] kernel_init+0x175/0x2e7 [<ffffffff8020bff8>] child_rip+0xa/0x12 [<ffffffff80372350>] ? acpi_ds_init_one_object+0x0/0x88 [<ffffffff807b45c6>] ? kernel_init+0x0/0x2e7 [<ffffffff8020bfee>] ? child_rip+0x0/0x12 Code: 89 03 49 8b 45 18 48 89 18 48 39 1b 75 04 0f 0b eb fe fe 05 51 51 38 00 fb eb 5b 48 8b 83 28 07 00 00 83 ca ff 48 83 e8 70 74 0e <48> 8b 40 20 48 8b 80 88 00 00 00 8b 50 04 48 8b 3d 79 ff 2f 00 RIP [<ffffffff80413642>] init_irq+0x188/0x444 RSP <ffff81022f093e00> CR2: ffffffffffffffb0 ---[ end trace 9010a4c8c4ba608a ]--- (gdb) p init_irq $1 = {int (ide_hwif_t *)} 0xffffffff804134ba <init_irq> (gdb) p/x 0xffffffff804134ba+0x188 $2 = 0xffffffff80413642 (gdb) l *0xffffffff80413642 0xffffffff80413642 is in init_irq (include/linux/ide.h:1311). 1306 print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 2, id, 512, 0); 1307 } 1308 1309 static inline int hwif_to_node(ide_hwif_t *hwif) 1310 { 1311 struct pci_dev *dev = to_pci_dev(hwif->dev); 1312 return dev ? pcibus_to_node(dev->bus) : -1; 1313 } 1314 1315 static inline ide_drive_t *ide_get_paired_drive(ide_drive_t *drive) (gdb) (gdb) p ide_device_add_all $1 = {int (u8 *, const struct ide_port_info *)} 0xffffffff804138fe <ide_device_add_all> (gdb) p/x 0xffffffff804138fe $2 = 0xffffffff804138fe (gdb) l *0xffffffff804138fe 0xffffffff804138fe is in ide_device_add_all (drivers/ide/ide-probe.c:1372). 1367 hwif->cbl = hwif->cable_detect(hwif); 1368 } 1369 } 1370 1371 int ide_device_add_all(u8 *idx, const struct ide_port_info *d) 1372 { 1373 ide_hwif_t *hwif, *mate = NULL; 1374 int i, rc = 0; 1375 1376 for (i = 0; i < MAX_HWIFS; i++) { (gdb) -- Thanks & Regards, Kamalesh Babulal, Linux Technology Center, IBM, ISTL. - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html