syr> now i see warnings in kern.log if exist dialup ppp-connection on
syr> acm-modem. i don't know is it usb-related or not.
and after next messages:
Aug 16 23:39:47 topalm2 kernel: Debug: sleeping function called from invalid context
at mm/slab.c:1989
Aug 16 23:39:47 topalm2 kernel: in_atomic():1, irqs_disabled():0
Aug 16 23:39:47 topalm2 kernel: [<c0105357>] dump_stack+0x17/0x20
Aug 16 23:39:47 topalm2 kernel: [<c0119f8f>] __might_sleep+0x9f/0xb0
Aug 16 23:39:47 topalm2 kernel: [<c01454ac>] __kmalloc+0xcc/0xe0
Aug 16 23:39:47 topalm2 kernel: [<f8df2184>] ohci_urb_enqueue+0xb4/0x3c0 [ohci_hcd]
Aug 16 23:39:47 topalm2 kernel: [<c02f06d0>] hcd_submit_urb+0x140/0x210
Aug 16 23:39:47 topalm2 kernel: [<c02f166a>] usb_submit_urb+0x22a/0x350
Aug 16 23:39:47 topalm2 kernel: [<f8de16ce>] acm_tty_write+0xae/0xe0 [cdc_acm]
Aug 16 23:39:47 topalm2 kernel: [<c02af92a>] ppp_async_push+0x13a/0x1e0
Aug 16 23:39:47 topalm2 kernel: [<c02af7e4>] ppp_async_send+0x44/0x50
Aug 16 23:39:47 topalm2 kernel: [<c02ab503>] ppp_channel_push+0xf3/0x150
Aug 16 23:39:47 topalm2 kernel: [<c02a9cb5>] ppp_write+0xe5/0x120
Aug 16 23:39:47 topalm2 kernel: [<c015c902>] vfs_write+0xa2/0x100
Aug 16 23:39:47 topalm2 kernel: [<c015ca11>] sys_write+0x41/0x70
Aug 16 23:39:47 topalm2 kernel: [<c0104553>] syscall_call+0x7/0xb
acm modem stop working. mgetty can't init modem:
08/16 23:39:48 CM0 mgetty: experimental test release 1.1.27-Oct21
08/16 23:39:48 CM0 check for lockfiles
08/16 23:39:48 CM0 locking the line
08/16 23:39:48 CM0 lowering DTR to reset Modem
08/16 23:39:49 CM0 send: \d\d\d+++\d\d\dATZ[0d]
08/16 23:39:52 CM0 waiting for ``OK''
08/16 23:40:12 CM0 timeout in chat script, waiting for `OK'
08/16 23:40:12 CM0 init chat timed out, trying force-init-chat
08/16 23:40:12 CM0 send: \d[10][03]\d\d\d+++\d\d\d[0d]\dATQ0V1H0[0d]
08/16 23:40:16 CM0 waiting for ``OK''
08/16 23:40:36 CM0 timeout in chat script, waiting for `OK'
08/16 23:40:36 CM0 init chat failed, exiting...: Interrupted system call
08/16 23:40:36 ##### failed in mg_init_data, dev=ttyACM0, pid=5544
ppp.log:
Aug 16 23:32:12 topalm2 pppd[2392]: local IP address 10.0.0.20
Aug 16 23:32:12 topalm2 pppd[2392]: remote IP address 10.1.0.1
Aug 16 23:39:47 topalm2 pppd[2392]: LCP terminated by peer (^Vrr"^@<[EMAIL
PROTECTED]@[EMAIL PROTECTED]@)
Aug 16 23:39:48 topalm2 pppd[2392]: Hangup (SIGHUP)
Aug 16 23:39:48 topalm2 pppd[2392]: Modem hangup
Aug 16 23:39:48 topalm2 pppd[2392]: Connection terminated.
Aug 16 23:39:48 topalm2 pppd[2392]: Connect time 7.7 minutes.
Aug 16 23:39:48 topalm2 pppd[2392]: Sent 413927 bytes, received 141983 bytes.
Aug 16 23:39:48 topalm2 pppd[2392]: Exit.
i don't get any response to AT-connands in minicom, rmmod cdc_acm
produce segfault:
usbcore: deregistering driver cdc_acm
usb 4-2: manual set_interface for iface 1, alt 0
Unable to handle kernel paging request at virtual address 6b6b6b9f
printing eip:
c02f179c
*pde = 00000000
Oops: 0000 [#1]
SMP
Modules linked in: mt312 cdc_acm ftdi_sio ohci_hcd skystar2 dvb_core uhci_hcd
usbcore: deregistering driver cdc_acm
EIP: 0060:[<c02f179c>] Not tainted
EFLAGS: 00010202 (2.6.8.1)
EIP is at usb_unlink_urb+0xc/0x50
eax: 6b6b6b6b ebx: f7fe8704 ecx: f8de3380 edx: ffffffea
esi: f69579b8 edi: c199edd0 ebp: ea41fed8 esp: ea41fed8
ds: 007b es: 007b ss: 0068
Process rmmod (pid: 18746, threadinfo=ea41e000 task=f73da230)
Stack: ea41fef0 f8de22cb c199edd0 f69579a8 f8de34c0 f8de34e0 ea41ff00 c02ea574
f69579b8 f8de34e0 ea41ff10 c0286e19 f8de3534 f8de3534 ea41ff20 c0286e48
c04232a0 c04232ec ea41ff34 c02872f6 f8de34e8 f8de34e0 00000000 ea41ff44
Call Trace:
[<c010532a>] show_stack+0x7a/0x90
[<c01054b7>] show_registers+0x157/0x1b0
[<c010565c>] die+0x9c/0x160
[<c0115211>] do_page_fault+0x2b1/0x581
[<c0104fbd>] error_code+0x2d/0x38
[<f8de22cb>] acm_disconnect+0x6b/0x158 [cdc_acm]
[<c02ea574>] usb_unbind_interface+0x64/0x70
[<c0286e19>] device_release_driver+0x59/0x60
[<c0286e48>] driver_detach+0x28/0x40
[<c02872f6>] bus_remove_driver+0x66/0xa0
[<c02877d7>] driver_unregister+0x17/0x40
[<c02ea651>] usb_deregister+0x31/0x40
[<f8de244d>] acm_exit+0xd/0x22 [cdc_acm]
[<c0134f79>] sys_delete_module+0x139/0x1a0
[<c0104553>] syscall_call+0x7/0xb
Code: f6 40 34 10 74 2e 8b 50 28 85 d2 74 11 8b 92 d0 00 00 00 85
<3>Slab corruption: start=f7fe8704, len=192
Redzone: 0x5a2cf071/0x5a2cf071.
Last user: [<f8de23a5>](acm_disconnect+0x145/0x158 [cdc_acm])
000: 00 00 00 00 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
Prev obj: start=f7fe8638, len=192
Redzone: 0x170fc2a5/0x170fc2a5.
Last user: [<c020e927>](kmem_alloc+0x57/0xc0)
000: 0f 00 00 00 01 00 07 00 30 74 6c 61 72 6f 6f 74
010: 00 20 5c 0a 05 00 48 6c 6f 63 61 6c 00 00 13 34
Next obj: start=f7fe87d0, len=192
Redzone: 0x170fc2a5/0x170fc2a5.
Last user: [<c02f03f2>](hcd_alloc_dev+0x72/0x140)
000: 44 9d fe f7 30 b6 7a f7 d8 87 fe f7 d8 87 fe f7
010: 00 c0 e7 f6 00 00 00 00 00 00 00 00 00 00 00 00
-------------------------------------------------------
SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media
100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33
Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift.
http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285
_______________________________________________
[EMAIL PROTECTED]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
