linux-kernel - ioremap panic

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Date:	Sat, 16 Aug 2008 20:49:29 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Ingo Molnar" <mingo@...e.hu>,
	"the arch/x86 maintainers" <x86@...nel.org>
Cc:	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: ioremap panic

qla2xxx 0000:83:00.1: PCI INT B -> Link[LE3C] -> GSI 42 (level, low) -> IRQ 42
------------[ cut here ]------------
kernel BUG at lib/ioremap.c:26!
invalid opcode: 0000 [1] SMP
Dumping ftrace buffer:
   (ftrace buffer empty)
CPU 4
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.27-rc3-tip-00452-g60e3132-dirty #58
RIP: 0010:[<ffffffff804b8aa2>]  [<ffffffff804b8aa2>]
ioremap_page_range+0x1b2/0x228
RSP: 0018:ffff881824c97a50  EFLAGS: 00010206
RAX: 00003e00beed2000 RBX: ffffc2001f126000 RCX: 00000000000ddff8
RDX: ffff8810224de930 RSI: ffffc2001f127000 RDI: ffffc2001f126000
RBP: ffff881824c97ac0 R08: ffff880844223890 R09: ffffffff80ea99a0
R10: 0000000080000000 R11: 000000000000000a R12: ffffc2001f127000
R13: ffffc2001f127000 R14: ffffffff80201c20 R15: ffff881827c017c0
FS:  0000000000000000(0000) GS:ffff881024c83400(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 0000000000201000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process swapper (pid: 1, threadinfo ffff881824c96000, task ffff881024ca0000)
Stack:  ffff881824c97aa0 ffffc2001f126fff ffffc2001f126fff ffffc2001f126fff
 ffffc2001f127000 ffffc2001f127000 ffff881027c01000 8000000000000173
 00003e00beed2000 8000000000000173 0000000000000010 ffffc2001f126000
Call Trace:
 [<ffffffff8024211e>] __ioremap_caller+0x246/0x2cd
 [<ffffffff8093ac5d>] ? qla2x00_probe_one+0x436/0xf96
 [<ffffffff8024228e>] ioremap_nocache+0x17/0x19
 [<ffffffff8093ac5d>] qla2x00_probe_one+0x436/0xf96
 [<ffffffff804c0626>] ? __bitmap_weight+0x3e/0x89
 [<ffffffff802566f1>] ? set_cpus_allowed_ptr+0x113/0x120
 [<ffffffff804b8dcc>] ? kobject_get+0x1a/0x22
 [<ffffffff804ca903>] pci_device_probe+0xd1/0x131
 [<ffffffff8053f7e8>] driver_probe_device+0xc5/0x173
 [<ffffffff8053f8ea>] __driver_attach+0x54/0x7e
 [<ffffffff8053f896>] ? __driver_attach+0x0/0x7e
 [<ffffffff8053f03e>] bus_for_each_dev+0x54/0x8e
 [<ffffffff804b8dcc>] ? kobject_get+0x1a/0x22
 [<ffffffff8053f624>] driver_attach+0x21/0x23
 [<ffffffff8053e92c>] bus_add_driver+0xbc/0x206
 [<ffffffff8053fafc>] driver_register+0xad/0x12d
 [<ffffffff804cabd5>] __pci_register_driver+0x6b/0xa6
 [<ffffffff80efcb01>] ? qla2x00_module_init+0x0/0x12c
 [<ffffffff80efcbfd>] qla2x00_module_init+0xfc/0x12c
 [<ffffffff8020904c>] _stext+0x4c/0x144
 [<ffffffff802695e7>] ? start_workqueue_thread+0x2b/0x2f
 [<ffffffff80269a09>] ? __create_workqueue_key+0x112/0x22c
 [<ffffffff80ed378f>] kernel_init+0x228/0x29d
 [<ffffffff80227ff9>] child_rip+0xa/0x11
 [<ffffffff80ed3567>] ? kernel_init+0x0/0x29d
 [<ffffffff80227fef>] ? child_rip+0x0/0x11
Code: 00 00 00 00 88 ff ff 48 01 c2 48 89 d8 48 c1 e8 09 25 f8 0f 00
00 48 01 c2 48 8b 45 d0 48 8d 0c 03 48 c1 e9 0c 48 83 3a 00 74 04 <0f>
0b eb fe 48 89 c8 48 81 c3 00 10 00 00 48 c1 e0 0c 48 0b 45
RIP  [<ffffffff804b8aa2>] ioremap_page_range+0x1b2/0x228
 RSP <ffff881824c97a50>
---[ end trace 34fd9ad9035f706a ]---
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