[okl4-developer] second wombat
Ashish Bijlani
ashish.bijlani at gmail.com
Tue Oct 7 10:15:53 EST 2008
I think there is conflict between the init processes from the two wombats:
vserial: init done (handle: 0, owner: 18001, mask: 2
vserial: init done (handle: 1, owner: 1c001, mask: 2)
start_thread current = 81f2dd60 pc = 800bd0, sp = 1ac5f30 name: L_1
start_thread current = 8272dd60 pc = 800bd0, sp = 1e96f30 name: L2_1
Does anybody have any idea?
-Ashish
On Mon, Oct 6, 2008 at 2:54 AM, Ashish Bijlani <ashish.bijlani at gmail.com> wrote:
> I get Error Code = 2 for L_syscall and L2_syscall
>
>
>
>> showtcbext
> tcb/tid/name [current]: L1
> No thread named: L1
>> showtcbext
> tcb/tid/name [current]: L_syscall
> === L_syscall == TCB: f00309a0 == ID: 00020001 = e0501e00/e0501e00 ==
> APRIO/EPRIO: 0x63/0x63 ===
> UIP: 810b9a2c queues: rB space: f01049f8/5 pager: roottask
> USP: 811cc5cc tstate: WAIT_FOREVER ready: NIL_THRD:NIL_THRD pdir : f0105900
> sndhd : NIL_THRD blocked : L_syscal:L_syscal waiting_for : L_timer
> ts length : 0x2710 us, curr ts: 0x2710 us
> resources: 00000000 [ek], ARM [PID: 0, vspace: 1, domain: 10,
> dom_mask 55510001]
> continuation: f0002428 preemption_cont: 00000000
> scheduler: L_syscal exception_handler: roottask
> partner: L_timer saved partner: NIL_THRD saved state: ABORTED
> tcb_idx: 7
> references: T f010184c->f0031380(I)->f0031420(I)->f0031358(I)->f00310c0(I)->f0031160(I)->f0031098(I)->f0030f60(I)->f0031000(I)->f0030f38(I)->f0030ca0(I)->f0030d40(I)->f0030c78(I)->f010844c(I)->f0030a80(I)
>
> user handle: 00000000 cop flags: 00
> preempt flags: 00 [~]
> incoming notify bits: 00000000 notify mask: 00000000
> last preempted_ip: 810040c4 preempt_callback_ip: 810041f8
>
> mr( 0): 00000000 811cc648 811cc604 811cc608 811c4640 811cc648 01e97d44 000000c0
> mr( 8): 00002654 00988e78 01e97d44 0002cef4 ef900066 40000010 00000000 00000000
> mr(16): 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> mr(24): 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> Message Tag: 0 untyped, label = 0, flags = -
>
> Acceptor: 00000000 (a) Error code: 2
>
>
>
>
>
>
>> showtcbext
> tcb/tid/name [current]: L2_syscall
> === L2_syscall == TCB: f0030b00 == ID: 00024001 = e0601e00/e0601e00 ==
> APRIO/EPRIO: 0x63/0x63 ===
> UIP: 81eb99c8 queues: rb space: f0104910/6 pager: roottask
> USP: 8282ff60 tstate: WAIT_FOREVER ready: NIL_THRD:NIL_THRD pdir : f0105800
> sndhd : NIL_THRD blocked : NIL_THRD:NIL_THRD waiting_for : NIL_THRD
> ts length : 0x2710 us, curr ts: 0x2710 us
> resources: 00000000 [ek], ARM [PID: 0, vspace: 1, domain: 5, dom_mask 401]
> continuation: f0002428 preemption_cont: 00000000
> scheduler: L2_sysca exception_handler: roottask
> partner: ANY_THRD saved partner: NIL_THRD saved state: ABORTED
> tcb_idx: 8
> references: T f0101854->f0030e00(I)->f0030ea0(I)->f0030dd8(I)->f0030be0(I)
>
> user handle: 00000000 cop flags: 00
> preempt flags: 00 [~]
> incoming notify bits: 00000000 notify mask: 00000000
> last preempted_ip: 81e07844 preempt_callback_ip: 81e042ec
>
> mr( 0): 00000000 00000001 8282c000 00000000 8282c05c 81fbb4ec 8002c380 00000000
> mr( 8): 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> mr(16): 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> mr(24): 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
> Message Tag: 0 untyped, label = 0, flags = -
>
> Acceptor: 00000000 (a) Error code: 2
>
>
> Upon debugging more I found out the Error Code 2 comes because of this :
>
> "
> Mount-cache hash table entries: 512
> current = L2_syscall
> SYS_EXCHANGE_REGISTERS: dest=NIL_THRD, control=0x80 [~~~~~~~~~~],
> usp=00000000, uip=00000000, uflags=00000000, uhandle=0
>
> current = L2_syscall
> SYS_EXCHANGE_REGISTERS: dest=NIL_THRD, control=0x80 [~~~~~~~~~~],
> usp=00000000, uip=00000000, uflags=00000000, uhandle=0
>
> current = L2_syscall
> SYS_EXCHANGE_REGISTERS: dest=NIL_THRD, control=0x80 [~~~~~~~~~~],
> usp=00000000, uip=00000000, uflags=00000000, uhandle=0
>
> Mount-cache hash table entries: 512
> current = L_syscall
> SYS_EXCHANGE_REGISTERS: dest=NIL_THRD, control=0x80 [~~~~~~~~~~],
> usp=00000000, uip=00000000, uflags=00000000, uhandle=0
>
> current = L_syscall
> SYS_EXCHANGE_REGISTERS: dest=NIL_THRD, control=0x80 [~~~~~~~~~~],
> usp=00000000, uip=00000000, uflags=00000000, uhandle=0
>
> current = L_syscall
> SYS_EXCHANGE_REGISTERS: dest=NIL_THRD, control=0x80 [~~~~~~~~~~],
> usp=00000000, uip=00000000, uflags=00000000, uhandle=0
>
> current = L_syscall
> SYS_EXCHANGE_REGISTERS: dest=NIL_THRD, control=0x80 [~~~~~~~~~~],
> usp=00000000, uip=00000000, uflags=00000000, uhandle=0
>
> current = L_syscall
> SYS_EXCHANGE_REGISTERS: dest=NIL_THRD, control=0x80 [~~~~~~~~~~],
> usp=00000000, uip=00000000, uflags=00000000, uhandle=0
> "
>
> Is this normal? How do I fix this?
>
> Thanks,
> Ashish
>
>
> On Sun, Oct 5, 2008 at 8:54 PM, Ashish Bijlani <ashish.bijlani at gmail.com> wrote:
>>> showtcbext
>> tcb/tid/name [current]: L2_1
>> === L2_1 == TCB: f0030dc0 == ID: 0002c001 = e0801f00/e0801f00 ==
>> APRIO/EPRIO: 0x62/0x62 ===
>> UIP: 00800bd0 queues: Rb space: f0104740/8 pager: L2_syscall
>> USP: 01c26f30 tstate: RUNNING ready: L2_1 :L2_1 pdir : f0105600
>> sndhd : NIL_THRD blocked : NIL_THRD:NIL_THRD waiting_for : NIL_THRD
>> ts length : 0x2710 us, curr ts: 0x2710 us
>> resources: 00000000 [ek], ARM [PID: 31, vspace: 0, domain: 7, dom_mask 4001]
>> continuation: ffff0cf4 preemption_cont: 00000000
>> scheduler: L2_sysca exception_handler: L2_sysca
>> partner: NIL_THRD saved partner: NIL_THRD saved state: ABORTED
>> tcb_idx: a
>> references: T f0101864
>>
>> user handle: 00000000 cop flags: 00
>> preempt flags: 00 [~]
>> incoming notify bits: 00000000 notify mask: 00000000
>> last preempted_ip: 00000000 preempt_callback_ip: 00000000
>>
>> mr( 0): 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
>> mr( 8): 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
>> mr(16): 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
>> mr(24): 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
>> Message Tag: 0 untyped, label = 0, flags = -
>>
>> Acceptor: 00000000 (a) Error code: 0
>>
>>
>> On Sun, Oct 5, 2008 at 8:51 PM, Ashish Bijlani <ashish.bijlani at gmail.com> wrote:
>>> Hi,
>>>
>>> I'm running two wombats on emulated (skyeye) gumstix platform.
>>> However, the wombat that boots up last doesn't prints any msgs on the
>>> serial console. AFAIK, once linux starts "init" process msgs over
>>> serial console appear through vserial server/client model and not
>>> through L4KDB. However, the latter wombat either doesn't get serial
>>> console to dump msgs or it is blocked on some event; I'm not sure
>>> though. I've modified vserial server in iguana to make the latter
>>> wombat's vserial client as the active_virtual client, but I don't see
>>> any output. What could be the reason?
>>>
>>> snippet from vserial to make the last wombat as active_virtual
>>>
>>> "
>>> for (i = 0; i < 4; i++)
>>> {
>>> if (virtual_device_instance[i].valid_instance)
>>> {
>>> virtual_device_instance[i].serial_device = (void *)(serial_device);
>>> // XXX virtual_device_instance[i].thread = *thread;
>>> // XXX virtual_device_instance[i].mask = mask;
>>>
>>> virtual_device_instance[i].si_start =
>>> virtual_device_instance[i].si_end = NULL;
>>> virtual_device_instance[i].si_comp_end =
>>> virtual_device_instance[i].si_comp_start = NULL;
>>>
>>> if (serial_device->active_virtual == NULL)
>>> {
>>> serial_device->active_virtual = &virtual_device_instance[i];
>>> serial_device->last_virtual = &virtual_device_instance[i];
>>> }
>>> else
>>> {
>>> serial_device->active_virtual = &virtual_device_instance[i];
>>> serial_device->last_virtual->next = &virtual_device_instance[i];
>>> serial_device->last_virtual = &virtual_device_instance[i];
>>> }
>>> }
>>> }
>>> "
>>>
>>> Output snippet
>>>
>>> "
>>> NET: Registered protocol family 15
>>> VFS: Mounted root (ext2 filesystem) readonly.
>>> PXA FFUART IRQ: 33
>>> vserial: init done (handle: 0, owner: 18001, mask: 2)
>>>
>>> Client: 0x0
>>> io scheduler noop registered
>>> io scheduler anticipatory registered
>>> io scheduler deadline registered
>>> io scheduler cfq registered (default)
>>> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
>>> loop: module loaded
>>> tun: Universal TUN/TAP device driver, 1.6
>>> tun: (C) 1999-2004 Max Krasnyansky <maxk at qualcomm.com>
>>> igms0: unknown partition table
>>> Iguana ramdisk driver initialized
>>> kobject_add failed for ttyS0 with -EEXIST, don't try to register
>>> things with the same name in the same directory.
>>> This architecture does not implement dump_stack()
>>> Iguana virtual serial driver v1.0
>>> TCP cubic registered
>>> NET: Registered protocol family 1
>>> NET: Registered protocol family 17
>>> NET: Registered protocol family 15
>>> VFS: Mounted root (ext2 filesystem) readonly.
>>> vserial: init done (handle: 1, owner: 1c001, mask: 2)
>>>
>>> Client: 0x1c001
>>> start_thread current = 8282bd60 pc = 800bd0, sp = 1c26f30
>>>
>>> Client: 0x1c001
>>>
>>> Client: 0x1c001
>>>
>>> Client: 0x1c001
>>>
>>> Client: 0x1c001
>>>
>>> "
>>>
>>> It doesn't prints anything after this. For the first "vserial: init
>>> done (handle: 0, owner: 18001, mask: 2)" it shows Client as NULL.
>>> Second time it shows the correct client.
>>>
>>>
>>>> showqueue
>>> Key: (X) blocked, <X> on CPU, {X} halted, !X! aborted
>>>
>>> [255]:
>>> WAIT_FOREVER
>>> (roottask)
>>>
>>> [240]:
>>> WAIT_FOREVER
>>> (vtimer)
>>> WAIT_FOREVER
>>> (vrtc)
>>>
>>> [200]:
>>> WAIT_FOREVER
>>> (event)
>>>
>>> [110]:
>>> RUNNING
>>> <vserial>
>>>
>>> [100]:
>>> WAIT_FOREVER
>>> (L_timer)
>>> WAIT_FOREVER
>>> (L2_timer)
>>>
>>> [ 99]:
>>> WAIT_FOREVER
>>> (L_syscal)
>>> WAIT_FOREVER
>>> (L2_sysca)
>>>
>>> [ 98]:
>>> WAIT_FOREVER
>>> (L_1)
>>> RUNNING
>>> L2_1
>>> WAIT_FOREVER
>>> (L_49)
>>> idle : idle_thread
>>>
>>> L2_1 represents the init process in wombat 2. This always shows L2_1
>>> as RUNNING. But doesn't prints it within "<" and ">".
>>>
>>> Thanks,
>>> Ashish
>>>
>>
>
More information about the Developer
mailing list