Fix released in 3.13.0-77.121
** Changed in: linux (Ubuntu Trusty)
Status: Fix Committed => Fix Released
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Title:
056a:0302 Trusty Tahr, k
Trusty and Utopic kernels from -proposed tested and verified to no
longer panic.
** Tags removed: verification-needed-trusty verification-needed-utopic
** Tags added: verification-done-trusty verification-done-utopic
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This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
trusty' to 'verification-done-trusty'.
If verification is not done by 5 working days from t
** Changed in: linux (Ubuntu Trusty)
Status: New => Fix Committed
** Changed in: linux-lts-utopic (Ubuntu Trusty)
Status: New => Fix Committed
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** Also affects: linux (Ubuntu Trusty)
Importance: Undecided
Status: New
** Also affects: linux-lts-utopic (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux-lts-utopic (Ubuntu)
Status: New => Invalid
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ApportVersion: 2.14.1-0ubuntu3.2
Architecture: i386
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC0: ubuntu10 1973 F pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 14.04
HibernationDevice: RESUME=UUID=d98e108a-7f3c-4278-a959-903f6fff9c2b
InstallationDate: Insta
** Changed in: linux (Ubuntu)
Status: In Progress => Invalid
** Changed in: linux (Ubuntu)
Status: Invalid => New
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Title:
056a:030
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Rahul (rahulshantagiri)
** Changed in: linux (Ubuntu)
Status: Confirmed => In Progress
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** Tags added: patch
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Title:
056a:0302 Trusty Tahr, kernel 3.13: automatic load of wacom.ko driver
cause a "hard" kernel panic
To manage notif
I've taken a long hard look at this bug and believe I've been able to
nail down the cause. The panic is caused by a NULL pointer being passed
to the 'input_report_switch' function. It occurs if the kernel has
probed the tablet's pen/pad interface and processes a status report from
it before the ker
I have a new incarnation of the bug, but I am not being able to capture a
track, although is quite easy to trigger.
Steps:
1 - load wacom.ko
2- connect the tablet **wirelessly**
3- wait until the tablet go to deep sleep (around 10 minutes)
4- switch the tablet on
-> hard crash, the PC is comple
I can reliably trigger this bug on my machine in the 3.16 and 3.13
kernels. I've attached the kernel crash output for 3.16 (minus the dump
because of its size, I can provide a link if desired).
Adding wacom to /etc/modules prevents this bug for me.
** Attachment added: "linux-image-3.16.0-31-ge
I've finally installed Ubuntu 14.04, installed and enabled linux-
crashdump and provoked this crash, and let Apport upload it...
somewhere. I don't know how to find it or refer to it from this bug
report (I wasn't given an opportunity to give an explanation).
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So I have a system that this happens to. Tablet model is CTH480S.
The thing is that this setup used to work until today (kernel update 2
days ago? Although running with an old version of the kernel show the
same problem now).
The work around is add wacom into /etc/modules for now, if anyone is
in
I have attached dump files. I note: "BUG: unable to handle kernel NULL
pointer dereference at 0018" - may be a clue? I have also posted
upstream as suggested but that thread seems to have found a work-around
so may be less interested. This seems to be an issue with how Ubuntu
packages this modu
@riban: As I commented, I can't reproduce it any more. Or maybe it's
random (I had a crash with the tablet in once, when reconnected with the
wireless option).
There is a bug upstream: http://sourceforge.net/p/linuxwacom/bugs/238/
--- maybe you can chime in there and see if the developers can help
I can confirm exact same results with wacom Intuos. Booting with tablet
plugged in does not crash. Plugging tablet in after booting triggers
kernel panic. Similar to OP I updated from 13.10 to 14.04.1. Tablet not
working in 13.10 at all. Rather nasty bug. Is there anything I can do to
assist with d
I guess it's down to me then...
Changed back to 'Confirmed', since the problem is readily reproducible
for me, although it doesn't occur every time -- once I plugged the
tablet in without triggering a crash (and it then worked correctly in my
limited testing).
I've tried persuading this USB-stick
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
056a:0302 Trusty Tahr, kernel 3.13: automatic load of wacom.ko drive
I was not really able to reproduce the crash neither on my 32 nor the 64 bit
system... so I am quite unable to help.
Has anyone explored the possibility of a corrupted/wrong wacom.ko in the
distribution media?
Romano
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Bu
For completeness, here's my panic, transcribed manually from my netbook
(there may be typos). (Not sure how useful this will be since it's not
the whole backtrace.)
...
[ 178.020018] [] ? uhci_free_td+0xb1/0xd0
[ 178.020018] [] uhci_scan_schedule+0x333/0x8d0
[ 178.020018] [] uhci_irq+0x97/0x
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