On Thu, Apr 24, 2003 at 10:27:58AM -0700, Greg KH wrote:
> Thanks, I've applied this and will send it on in a bit.
>
> Oops, I've fixed the call to check_region, which should not have been
> made. Sorry I missed that last time.
I have booted 2.5.68-bk6 and upon modprobe it87 I get this:
i2c /dev entries driver module version 2.7.0 (20021208)
registering 0-0290
Unable to handle kernel NULL pointer dereference at virtual address 0000006c
printing eip:
c022ea13
*pde = 00000000
Oops: 0000 [#1]
CPU: 0
EIP: 0060:[<c022ea13>] Not tainted
EFLAGS: 00010206
EIP is at kobject_get+0x13/0x50
eax: ef27e000 ebx: 0000005c ecx: c03b1db0 edx: 00000296
esi: f0858388 edi: ef55ec00 ebp: ef55ec00 esp: ef27fea8
ds: 007b es: 007b ss: 0068
Process modprobe (pid: 69, threadinfo=ef27e000 task=ef6e2700)
Stack: ef55ec44 c022e71d 0000005c ef55ec18 c027f5a6 ef55ec44 ef55ec18 c027f703
ef55ec18 ef55eca2 f08736df ef55ec18 ef55eca2 f0875127 00000000 00000290
ef55ece0 f08821a3 ef55eca2 f0881573 ef55ec00 00000058 00000008 f08821a3
Call Trace:
[<c022e71d>] kobject_init+0x2d/0x50
[<c027f5a6>] device_initialize+0x16/0x50
[<c027f703>] device_register+0x13/0x30
[<f08736df>] i2c_attach_client+0xff/0x150 [i2c_core]
[<f0875127>] +0xb/0x24 [i2c_core]
[<f08821a3>] +0x130/0x14d [it87]
[<f0881573>] it87_detect+0x163/0x540 [it87]
[<f08821a3>] +0x130/0x14d [it87]
[<f0883a08>] forces+0x28/0x40 [it87]
[<c0122046>] __check_region+0x46/0x50
[<f0883a08>] forces+0x28/0x40 [it87]
[<f085a34f>] +0x34f/0x4b0 [i2c_sensor]
[<f0858360>] isa_adapter+0x0/0x1a0 [i2c_isa]
[<f08776a4>] i2c_bus_type+0x44/0xe0 [i2c_core]
[<f0877660>] i2c_bus_type+0x0/0xe0 [i2c_core]
[<c02806a0>] bus_add_driver+0xd0/0xe0
[<f0883be0>] it87_driver+0x0/0xa4 [it87]
[<f08813ff>] it87_attach_adapter+0x1f/0x30 [it87]
[<f0858360>] isa_adapter+0x0/0x1a0 [i2c_isa]
[<f0883ba0>] addr_data+0x0/0x24 [it87]
[<f0881410>] it87_detect+0x0/0x540 [it87]
[<f0873374>] i2c_add_driver+0xc4/0xf0 [i2c_core]
[<f0858360>] isa_adapter+0x0/0x1a0 [i2c_isa]
[<f0883e80>] +0x0/0x140 [it87]
[<f085200f>] +0xf/0x13 [it87]
[<f0883be0>] it87_driver+0x0/0xa4 [it87]
[<c01329ff>] sys_init_module+0x12f/0x1e0
[<f0883e80>] +0x0/0x140 [it87]
[<c010ab77>] syscall_call+0x7/0xb
Code: 8b 43 10 85 c0 7e 26 ff 43 10 b8 00 e0 ff ff 21 e0 ff 48 14
<6>note: modprobe[69] exited with preempt_count 1
bad: scheduling while atomic!
Call Trace:
[<c011a5b9>] schedule+0x399/0x3a0
[<c01410f3>] unmap_page_range+0x43/0x70
[<c01412e0>] unmap_vmas+0x1c0/0x220
[<c01450cb>] exit_mmap+0x7b/0x190
[<c011be84>] mmput+0x54/0xb0
[<c011fb9d>] do_exit+0x10d/0x400
[<c010bbb1>] die+0xe1/0xf0
[<c0118caa>] do_page_fault+0x14a/0x457
[<c010b4e4>] common_interrupt+0x18/0x20
[<c0272860>] serial_in+0x20/0x40
[<c022f8f2>] __delay+0x12/0x20
[<c02751d5>] serial8250_console_write+0x155/0x240
[<c011dfc4>] __call_console_drivers+0x54/0x60
[<c0118b60>] do_page_fault+0x0/0x457
[<c010b581>] error_code+0x2d/0x38
[<f0858388>] isa_adapter+0x28/0x1a0 [i2c_isa]
[<c022ea13>] kobject_get+0x13/0x50
[<c022e71d>] kobject_init+0x2d/0x50
[<c027f5a6>] device_initialize+0x16/0x50
[<c027f703>] device_register+0x13/0x30
[<f08736df>] i2c_attach_client+0xff/0x150 [i2c_core]
[<f0875127>] +0xb/0x24 [i2c_core]
[<f08821a3>] +0x130/0x14d [it87]
[<f0881573>] it87_detect+0x163/0x540 [it87]
[<f08821a3>] +0x130/0x14d [it87]
[<f0883a08>] forces+0x28/0x40 [it87]
[<c0122046>] __check_region+0x46/0x50
[<f0883a08>] forces+0x28/0x40 [it87]
[<f085a34f>] +0x34f/0x4b0 [i2c_sensor]
[<f0858360>] isa_adapter+0x0/0x1a0 [i2c_isa]
[<f08776a4>] i2c_bus_type+0x44/0xe0 [i2c_core]
[<f0877660>] i2c_bus_type+0x0/0xe0 [i2c_core]
[<c02806a0>] bus_add_driver+0xd0/0xe0
[<f0883be0>] it87_driver+0x0/0xa4 [it87]
[<f08813ff>] it87_attach_adapter+0x1f/0x30 [it87]
[<f0858360>] isa_adapter+0x0/0x1a0 [i2c_isa]
[<f0883ba0>] addr_data+0x0/0x24 [it87]
[<f0881410>] it87_detect+0x0/0x540 [it87]
[<f0873374>] i2c_add_driver+0xc4/0xf0 [i2c_core]
[<f0858360>] isa_adapter+0x0/0x1a0 [i2c_isa]
[<f0883e80>] +0x0/0x140 [it87]
[<f085200f>] +0xf/0x13 [it87]
[<f0883be0>] it87_driver+0x0/0xa4 [it87]
[<c01329ff>] sys_init_module+0x12f/0x1e0
[<f0883e80>] +0x0/0x140 [it87]
[<c010ab77>] syscall_call+0x7/0xb
-bk3 with my version of it87 works fine.
Cheers,
florin
--
"NT is to UNIX what a doughnut is to a particle accelerator."
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