On 3/14/06, Bob Copeland <[EMAIL PROTECTED]> wrote:
> On 3/14/06, Paul Fulghum <[EMAIL PROTECTED]> wrote:
> > Bob, this problem has not yet been properly diagnosed.
> > Can you help by running with this patch and returning
> > the syslog output (with the oops also)?
>
Here's the long awaited dmesg... if needed I can also recompile with
the acm debugging on -- some of that may be useful in the probe stage
if this doesn't narrow it down.
usb 1-2: new full speed USB device using uhci_hcd and address 2
usb 1-2: configuration #1 chosen from 1 choice
drivers/usb/class/cdc-acm.c: Ignoring extra header, type -3, length 4
cdc_acm 1-2:1.1: ttyACM0: USB ACM device
acm_probe call tty_register_device if=ceff8a78 dev=ceff8a8c ref=7
usbcore: registered new driver cdc_acm
drivers/usb/class/cdc-acm.c: v0.25:USB Abstract Control Model driver
for USB modems and ISDN adapters
CSLIP: code copyright 1989 Regents of the University of California
PPP generic driver version 2.4.2
PPP BSD Compression module registered
PPP Deflate Compression module registered
usb 1-2: USB disconnect, address 2
usb release_interface if=ceff8454 dev=ceff8468 ref=0
usb release_interface if=cefe8554 dev=cefe8568 ref=0
usb release_interface if=ceff886c dev=ceff8880 ref=0
usb release_interface if=cefe8760 dev=cefe8774 ref=0
usb release_interface if=ceff8c84 dev=ceff8c98 ref=0
usb release_interface if=cea054d4 dev=cea054e8 ref=0
usb release_interface if=cea050bc dev=cea050d0 ref=0
usb release_interface if=cea058ec dev=cea05900 ref=0
usb release_interface if=cea056e0 dev=cea056f4 ref=0
usb release_interface if=cefe986c dev=cefe9880 ref=0
acm_tty_unregister if=ceff8a78 dev=ceff8a8c ref=2
Unable to handle kernel paging request at virtual address 6b6b6bfb
printing eip:
c02797ce
*pde = 00000000
Oops: 0000 [#1]
Modules linked in: ppp_deflate zlib_deflate bsd_comp ppp_async
crc_ccitt ppp_generic slhc cdc_acm i915 binfmt_misc parport_pc lp
parport video thermal processor fan button battery ac af_packet
nls_iso8859_1 nls_cp437 vfat fat dm_mod evdev usb_storage ide_cd
sr_mod scsi_mod cdrom i810 drm eth1394 pcmcia crc32 ipw2100 ieee80211
ieee80211_crypt tg3 8250_pci 8250 serial_core ohci1394 yenta_socket
ieee1394 rsrc_nonstatic pcmcia_core ehci_hcd uhci_hcd snd_intel8x0m
snd_intel8x0 snd_ac97_codec snd_ac97_bus intel_agp usbcore agpgart
unix
CPU: 0
EIP: 0060:[<c02797ce>] Not tainted VLI
EFLAGS: 00010046 (2.6.16-rc6 #25)
EIP is at __mutex_lock_slowpath+0x70/0x286
eax: cbd57e10 ebx: cbd56000 ecx: 00000000 edx: 00000054
esi: 6b6b6bdb edi: cbe77a70 ebp: c017593e esp: cbd57e10
ds: 007b es: 007b ss: 0068
Process pppd (pid: 4083, threadinfo=cbd56000 task=cbe77a70)
Stack: <0>cbd57e10 cbd57e10 11111111 11111111 cbd57e10 c0b56ac8
cf609cc4 cf609ccc
cf609c60 c017593e c06fe7cc cb68155c 6b6b6b6b c0b56ac8 cf609cc4 cf609ccc
cf609c60 c01e75d2 cb68155c c06fe7cc cb645094 c029ecfc 00000000 c06fe7cc
Call Trace:
[<c017593e>] sysfs_hash_and_remove+0x34/0x10a
[<c01e75d2>] class_device_del+0xa0/0x11c
[<c01e7659>] class_device_unregister+0xb/0x16
[<d033120c>] acm_tty_unregister+0x36/0x7d [cdc_acm]
[<d0331bc4>] acm_tty_close+0x9d/0xac [cdc_acm]
[<c01d6c80>] release_dev+0x1a9/0x5b7
[<c011e1a2>] __group_complete_signal+0x17c/0x20d
[<c011ee0d>] sys_kill+0xd8/0xe7
[<c0146d8d>] __fput+0x74/0x132
[<c01d734c>] tty_release+0x9/0xc
[<c0146db8>] __fput+0x9f/0x132
[<c0144bf6>] filp_close+0x4e/0x57
[<c0145574>] sys_close+0x56/0x63
[<c01029c9>] syscall_call+0x7/0xb
Code: fc cd 27 c0 85 d2 0f 44 c2 68 0f 4a 28 c0 c7 05 98 38 2c c0 00
00 00 00 a3 8c 23 2c c0 e8 02 cf e9 ff e8 1c a3 e8 ff 83 c4 10 fa <39>
76 20 74 49 83 3d 98 38 2c c0 00 74 40 8b 15 8c 23 2c c0 b8
<3>Debug: sleeping function called from invalid context at
include/linux/rwsem.h:43
in_atomic():0, irqs_disabled():1
[<c0116c85>] exit_mm+0x28/0xe8
[<c0117756>] do_exit+0x17f/0x619
[<c0103d85>] do_simd_coprocessor_error+0x0/0x14f
[<c0111cf7>] do_page_fault+0x389/0x4c0
[<c011196e>] do_page_fault+0x0/0x4c0
[<c017593e>] sysfs_hash_and_remove+0x34/0x10a
[<c010345f>] error_code+0x4f/0x54
[<c017593e>] sysfs_hash_and_remove+0x34/0x10a
[<c02797ce>] __mutex_lock_slowpath+0x70/0x286
[<c017593e>] sysfs_hash_and_remove+0x34/0x10a
[<c01e75d2>] class_device_del+0xa0/0x11c
[<c01e7659>] class_device_unregister+0xb/0x16
[<d033120c>] acm_tty_unregister+0x36/0x7d [cdc_acm]
[<d0331bc4>] acm_tty_close+0x9d/0xac [cdc_acm]
[<c01d6c80>] release_dev+0x1a9/0x5b7
[<c011e1a2>] __group_complete_signal+0x17c/0x20d
[<c011ee0d>] sys_kill+0xd8/0xe7
[<c0146d8d>] __fput+0x74/0x132
[<c01d734c>] tty_release+0x9/0xc
[<c0146db8>] __fput+0x9f/0x132
[<c0144bf6>] filp_close+0x4e/0x57
[<c0145574>] sys_close+0x56/0x63
[<c01029c9>] syscall_call+0x7/0xb
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