[BUG] 2.6.24-mm1 and 2.6.24-git13 kernel panic's while bootup at ide_device_add_all

[Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>]

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.