Re: [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U8
From: Rui Nuno Capela
Date: Wed Oct 20 2004 - 07:53:46 EST
Ingo Molnar wrote:
>
>> >> RTNL: assertion failed at net/ipv4/devinet.c (1049)
>> >
>> > yeah - this too was an oversight i fixed in the latest upload.
>>
>> I don't think so. I still see plenty of those here.
>>
>> Is there an even more recent U8? I think you should consider add some
>> dot numbering to each of the uploads... ;)
>
> indeed this most likely means there's a newer update :-| Please
> double-check that the one you have is:
>
> $ md5sum realtime-preempt-2.6.9-rc4-mm1-U8
> b59ae00ca0f45f545519348113af5c4f realtime-preempt-2.6.9-rc4-mm1-U8
>
That was it. Thanks.
Now's some bad news:
I getting the dump below, this time while plugging a flash memory stick,
but right after that the system starts to behave preety bad and
increasingly unresponsive. An hard-boot is almost the end of the (short)
story :(
(e.g. running jackd also hoses the complete system in no reproducible
amount of time--sometimes short, other times long, like a random
time-bomb).
ohci_hcd 0000:00:0f.0: wakeup
usb 2-1: new full speed USB device using address 2
Initializing USB Mass Storage driver...
scsi0 : SCSI emulation for USB Mass Storage devices
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
usb-storage: device found at 2
usb-storage: waiting for device to settle before scanning
------------[ cut here ]------------
kernel BUG at lib/rwsem-generic.c:598!
invalid operand: 0000 [#1]
PREEMPT
Modules linked in: usb_storage vfat fat udf isofs nls_base realtime
commoncap snd_seq_oss snd_seq_midi_event snd_seq snd_pcm_oss snd_mixer_oss
snd_usb_usx2y snd_usb_lib snd_rawmidi snd_seq_device snd_hwdep snd_ali5451
snd_ac97_codec snd_pcm snd_timer snd_page_alloc snd soundcore prism2_cs
p80211 ds yenta_socket pcmcia_core natsemi crc32 loop subfs evdev ohci_hcd
usbcore thermal processor fan button battery ac
CPU: 0
EIP: 0060:[<c01b7e30>] Not tainted VLI
EFLAGS: 00010206 (2.6.9-rc4-mm1-RT-U8.3)
EIP is at up_write+0x1d4/0x202
eax: d2b2a000 ebx: 00000292 ecx: d2afe980 edx: d2ad4f40
esi: d7b83b24 edi: dcb21000 ebp: d2b2bd6c esp: d2b2bd4c
ds: 007b es: 007b ss: 0068 preempt: 00000001
Process usb-stor (pid: 6699, threadinfo=d2b2a000 task=d2ad48b0)
Stack: d2ad48b0 d2b2bd78 c02bea7f 00000001 d2ad48b0 00000292 d2afe980
dcb21000
d2b2bd84 e01ca139 d2afe980 d2b2bd84 00000292 dcb21138 d2b2bdac
c022ed18
d2afe980 c022ef1c c0231679 00000000 d2afe9d4 d2afe980 d2aa3800
dcb21000
Call Trace:
[<c0104eb0>] show_stack+0x80/0x96 (28)
[<c010504b>] show_registers+0x165/0x1de (56)
[<c010525d>] die+0xf6/0x191 (64)
[<c0105797>] do_invalid_op+0x10b/0x10d (188)
[<c0104b0d>] error_code+0x2d/0x38 (100)
[<e01ca139>] queuecommand+0x70/0x7c [usb_storage] (24)
[<c022ed18>] scsi_dispatch_cmd+0x168/0x218 (40)
[<c02342ed>] scsi_request_fn+0x1ee/0x42b (52)
[<c0205612>] blk_insert_request+0xcd/0xfb (44)
[<c0232f4f>] scsi_insert_special_req+0x3b/0x3f (28)
[<c0233181>] scsi_wait_req+0x61/0x94 (60)
[<c023529c>] scsi_probe_lun+0x8e/0x240 (68)
[<c023588f>] scsi_probe_and_add_lun+0xb0/0x1be (48)
[<c0236015>] scsi_scan_target+0xa4/0x123 (60)
[<c0236121>] scsi_scan_channel+0x8d/0xa4 (48)
[<c02361b1>] scsi_scan_host_selected+0x79/0xd4 (44)
[<c023623d>] scsi_scan_host+0x31/0x33 (28)
[<e01cccbd>] usb_stor_scan_thread+0x144/0x155 [usb_storage] (96)
[<c0102305>] kernel_thread_helper+0x5/0xb (760037396)
preempt count: 00000002
. 2-level deep critical section nesting:
.. entry 1: die+0x3a/0x191 / (do_invalid_op+0x10b/0x10d)
.. entry 2: print_traces+0x16/0x4a / (show_stack+0x80/0x96)
Code: e8 af f9 ff ff 89 f8 e8 f1 af f5 ff e9 35 ff ff ff 0f 0b a5 00 e3 e8
2c c0 e9 da fe ff ff 0f 0b a4 00 e3 e8 2c c0 e9 c4 fe ff ff <0f> 0b 56 02
6f 75 2d c0 e9 3c fe ff ff e8 7f 5b 10 00 e9 22 ff
Bye.
--
rncbc aka Rui Nuno Capela
rncbc@xxxxxxxxx
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