Re: 2.6.26-git0: IDE oops during boot


On Thursday 07 February 2008, Kamalesh Babulal wrote:
Bartlomiej Zolnierkiewicz wrote:
Hi,

On Wednesday 06 February 2008, Pavel Machek wrote:
On Wed 2008-02-06 11:53:34, Pavel Machek wrote:
Hi!

Trying to boot 2.6.25-git0 (few days old), I get

BUG: unable to handle kernel paging request at ffff..ffb0
IP at init_irq+0x42e

init_irq? hmm...

Call trace:
ide_device_add_all

this comes from ide-generic
(Generic IDE host driver)

ide_generic_init
kernel_init
child_rip
vgacon_cursor
kernel_init
child_rip

Excerpt from config:

CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y
Disabling CONFIG_IDE made my machine boot, as it was using libata
anyway.

Kamalesh/Pavel:

Could you try latest git and see if the OOPS is still there?

[ Yeah, I'm unable to reproduce it. :( ]

Thanks,
Bart
Hi Bart,

The panic is reproducible with the 2.6.24-git16 kernel, the call trace is
similar to the previous one

Thanks, I again reviewed ide-probe.c changes but nothing seems wrong...

Could you please bisect it down to the guilty commit?

BUG: unable to handle kernel paging request at ffffffffffffffa0
IP: [<ffffffff80415673>] init_irq+0x188/0x444

Please also try disassembling init_irq using gdb so we see where it fails.

Bart

PGD 203067 PUD 204067 PMD 0
Oops: 0000 [1] SMP
CPU 3
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.24-git16 #1
RIP: 0010:[<ffffffff80415673>] [<ffffffff80415673>] init_irq+0x188/0x444
RSP: 0000:ffff81022f093e00 EFLAGS: 00010282
RAX: ffffffffffffff80 RBX: ffffffff808ad200 RCX: 0000000000000000
RDX: 00000000ffffffff RSI: ffff81022fc039c0 RDI: ffffffff807512c0
RBP: ffff81022f093e30 R08: ffff81022f093d70 R09: 0000000000000002
R10: 0000000000000001 R11: ffff81022f093c00 R12: ffffffff808b4500
R13: ffffffff808b4510 R14: 0000000000000000 R15: ffffffffffffffff
FS: 0000000000000000(0000) GS:ffff81022f0e7ac0(0000) knlGS:0000000000000000
CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: ffffffffffffffa0 CR3: 0000000000201000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process swapper (pid: 1, threadinfo ffff81022f092000, task ffff81022f0797e0)
Stack: ffff81022f093e30 0000000000000000 ffffffff808ad200 ffffffff808ad220
ffffffff808add80 0000000000000000 ffff81022f093eb0 ffffffff8041648f
ffff81022f093ec0 0000000000000000 0000000080751ee0 0000000000000246
Call Trace:
[<ffffffff8041648f>] ide_device_add_all+0xb60/0xe54
[<ffffffff807d6d48>] ide_generic_init+0x46/0x4a
[<ffffffff807b873b>] kernel_init+0x175/0x2e7
[<ffffffff8020bff8>] child_rip+0xa/0x12
[<ffffffff8037476c>] acpi_ds_init_one_object+0x0/0x88
[<ffffffff807b85c6>] 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 20 71 38 00 fb eb 5b 48 8b 83 20 07 00 00 83 ca ff 48 83 c0 80 74 0e <48> 8b 40 20 48 8b 80 88 00 00 00 8b 50 04 48 8b 3d 48 11 30 00
RIP [<ffffffff80415673>] init_irq+0x188/0x444
RSP <ffff81022f093e00>
CR2: ffffffffffffffa0
---[ end trace 165798c72d52c3e3 ]---


--
Thanks & Regards,
Kamalesh Babulal,
Linux Technology Center,
IBM, ISTL.
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