Reuben Farrelly <reuben-lkml@xxxxxxxx> wrote:
On 10/01/2006 2:49 p.m., Andrew Morton wrote:Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> wrote:Seemingly not fixed afterall. I've been doing many reboots lately getting to the bottom of the barrier/md bug and just before I hit this with -mm3 (linus.patch -git7) which I believe is the same bug (the call trace looks very similar).On Llu, 2006-01-09 at 16:44 -0800, Andrew Morton wrote:Well that's all merged up now. Reuben, could you please test 2.6.15git6- Reuben Farrelly's oops in make_class_name(). Could be libata, or scsilibata I think. I reproduced it on 2.6.14-mm2 by accident with a buggy
or driver core.
pata driver.
tomorrow?
...
I'm getting my bugs confused now - there are so many. Were you the person
who reported this before?
serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
ACPI: PCI Interrupt 0000:06:02.0[A] -> GSI 18 (level, low) -> IRQ 185
0000:06:02.0: ttyS1 at I/O 0xbc00 (irq = 185) is a 16550A
0000:06:02.0: ttyS2 at I/O 0xbc08 (irq = 185) is a 16550A
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ahci: probe of 0000:00:1f.2 failed with error -12
ata1: SATA max UDMA/133 cmd 0x0 ctl 0x2 bmdma 0x0 irq 0
ata2: SATA max UDMA/133 cmd 0x0 ctl 0x2 bmdma 0x8 irq 0
Unable to handle kernel NULL pointer dereference at virtual address 00000000
printing eip:
c023c873
*pde = 00000000
Oops: 0000 [#1]
SMP
last sysfs file:
Modules linked in:
CPU: 0
EIP: 0060:[<c023c873>] Not tainted VLI
EFLAGS: 00010206 (2.6.15-mm3)
EIP is at make_class_name+0x28/0x8d
eax: 00000000 ebx: ffffffff ecx: ffffffff edx: c1a12224
esi: 00000009 edi: 00000000 ebp: c1921d2c esp: c1921d1c
ds: 007b es: 007b ss: 0068
Process swapper (pid: 1, threadinfo=c1921000 task=c1920a90)
Stack: <0>c1a12224 c03913f8 c1a12224 c03913f8 c1921d54 c023cabd c1921d58 c0391380
00000000 c1af39c0 c0391400 c1a12224 c1a12000 c1a12030 c1921d60 c023cb7b
c1a120e4 c1921d74 c0255dbf c1a122c0 c1a43a40 00000000 c1921d80 c025e393
Call Trace:
[<c0103c5d>] show_stack+0x9b/0xc0
[<c0103de4>] show_registers+0x162/0x1e7
[<c0103f8f>] die+0x126/0x231
[<c01140db>] do_page_fault+0x271/0x5b9
[<c01037df>] error_code+0x4f/0x54
[<c023cabd>] class_device_del+0xa3/0x156
[<c023cb7b>] class_device_unregister+0xb/0x15
[<c0255dbf>] scsi_remove_host+0xb4/0xef
[<c025e393>] ata_host_remove+0x11/0x1c
[<c0260ec6>] ata_device_add+0x2e4/0xb7b
[<c0261cd6>] ata_pci_init_one+0x322/0x387
[<c0265b34>] piix_init_one+0x18c/0x338
[<c01f4f4f>] pci_device_probe+0x44/0x5f
[<c023bf62>] driver_probe_device+0x3e/0xb0
[<c023c0df>] __driver_attach+0x8e/0x90
[<c023b9f3>] bus_for_each_dev+0x44/0x62
[<c023bece>] driver_attach+0x19/0x1b
[<c023b687>] bus_add_driver+0x6d/0x126
[<c023c350>] driver_register+0x6b/0x9b
[<c01f50fb>] __pci_register_driver+0x6a/0x95
[<c03e8ea8>] piix_init+0xf/0x22
[<c01003cc>] init+0xff/0x325
[<c0100d25>] kernel_thread_helper+0x5/0xb
Code: c8 5d c3 55 89 e5 57 56 53 83 ec 04 89 45 f0 89 c2 8b 40 48 8b 38 bb ff ff ff ff 89 d9 31 c0 f2 ae f7 d1 49 89 ce 8b 7a 08 89 d9 <f2> ae f7 d1 49 89 ca 8d 4e 02 8d 04 0a ba d0 00 00 00 e8 3b 72
Jeff, I beleive this is a sata bug. ata_device_add() called
ata_host_remove() and something under there isnot yet sufficiently
initialised.