[PD] [hid] crashing with segmentation fault

Jerome Tuncer columbiatwo at free.fr
Tue Jan 10 19:12:09 CET 2006


Hi Hans,

I just tried replacing the line you told me in hid_linux.c and it 
doesn't work. External compiles well but it still segfaults with exactly 
the same error.

Since I don't understand much C programming, I just replaced what you 
said blindly...

Good luck with your PowerBook anyway (-;

++

Jé

Hans-Christoph Steiner a écrit :
> 
> Ok, while working on this, my Linux install went down in flames.  I  
> guess "unstable" was actually unstable this time.  After a few long  
> fscks, I am back on Mac OS X, but not yet on Debian.  Anyway, the Linux  
> 2.6 sync events are not used by [hid] and are not HID events, but  
> generated by the Linux kernel, so they'll be eventually removed so that  
> everything is the same across platform.
> 
> For now, try replacing this line in hid_linux.c (line 180):
> 
>     else
> 
> with this:
> 
>     else if ( event_type != EV_SYN )
> 
> Sorry, I can't test it myself until I fix Debian on my PowerBook.   Arg...
> 
> .hc
> 
> On Jan 7, 2006, at 10:19 PM, Jerome Tuncer wrote:
> 
>> Hi Haans Christopher,
>>
>> In fact, it seems that both the keyboard and the mouse are making  
>> [hid] crash. Some time ago, when the touchpad used to work, I 
>> remember  it made it crash as well and I'm quite sure it gave 
>> syn_report  messages as well...
>>
>> By the way: [hid] doesn't crash on my desktop which is Debian testing  
>> as well... I'll check the output to see if syn_report messages are  
>> present or not.
>>
>> ++
>>
>>>>
>>
>> Hans-Christoph Steiner a écrit :
>>
>>> Are you able to narrow down which device is causing it?  Looks like   
>>> syn_report messages are the culprit.  I don't have a device that   
>>> outputs syn_report events (IIRC).
>>> I'll look at this today.
>>> .hc
>>> On Jan 6, 2006, at 11:51 PM, Jerome Tuncer wrote:
>>>
>>>> Hi Hans, hi list,
>>>>
>>>> I just got back to trying to make [hid] work on my laptop and I  
>>>> still  can't...
>>>>
>>>> [hid] is the latest from CVS (Friday, January 6th 2006) and still   
>>>> gives segmentation faults.
>>>>
>>>> My machine is a PC running Debian unstable with 2.6.14.
>>>>
>>>> Here's more detail:
>>>>
>>>> I have 3 HID peripherals on the machine:
>>>>
>>>> - /dev/input/event0 :: Keyboard
>>>> - /dev/input/event1 :: Touchpad
>>>> - /dev/input/event2 :: USB Mouse
>>>>
>>>> "$ hexdump /dev/input/event1" doesn't output anything so I assume  
>>>> the  touchpad doesn't send info well. Let's forget about that for  now.
>>>>
>>>> "$ hexdump /dev/input/event0"
>>>> "$ hexdump /dev/input/event2"
>>>> Both output hex. dataflow.
>>>>
>>>> The output from [print( sent to [hid] compiled in debug mode for 
>>>> the   keyboard is printKeyboard.txt. printTouchpad.txt and 
>>>> printMouse.txt   are the outputs from the 2 other peripherals.
>>>>
>>>> The 2 other files (printSegFaultKeyboard.txt and   
>>>> printSegFaultMouse.txt)  is the stderr from the two peripherals 
>>>> that   make [hid] crash. Touchpad doesn't seem to send anything.
>>>>
>>>> I suspect the problem being similar to what Gerda experienced in:   
>>>> http://lists.puredata.info/pipermail/pd-list/2005-08/030339.html
>>>>
>>>> Do you know where the problem may come from?
>>>> Do you need more output from anything?
>>>>
>>>>
>>>> ++
>>>>
>>>>
>>>>>>>> hid_new
>>>> [hid] 0.6, written by Hans-Christoph Steiner <hans at eds.org>
>>>> hid_open
>>>> [hid] opened device 0 (/dev/input/event0): AT Translated Set 2  
>>>> keyboard
>>>>
>>>> Device 0: 'AT Translated Set 2 keyboard' on '/dev/input/event0'
>>>> Device 1: 'SynPS/2 Synaptics TouchPad' on '/dev/input/event1'
>>>> Device 2: 'Microsoft Microsoft Wheel Mouse Optical®' on   
>>>> '/dev/input/event2'
>>>>
>>>>
>>>> Supported events:
>>>>
>>>>   TYPE  CODE    EVENT NAME
>>>> -----------------------------------------------------------
>>>>   syn   syn_report      Synchronization
>>>>   syn   syn_config      Synchronization
>>>>   syn   ?       Synchronization
>>>>   syn   ev_9    Synchronization
>>>>   syn   ev_12   Synchronization
>>>>
>>>>   TYPE  CODE    EVENT NAME
>>>> -----------------------------------------------------------
>>>>   key   key_esc Keys/Buttons
>>>>   key   key_1   Keys/Buttons
>>>>   key   key_2   Keys/Buttons
>>>>   key   key_3   Keys/Buttons
>>>>   key   key_4   Keys/Buttons
>>>>   key   key_5   Keys/Buttons
>>>>   key   key_6   Keys/Buttons
>>>>   key   key_7   Keys/Buttons
>>>>   key   key_8   Keys/Buttons
>>>>   key   key_9   Keys/Buttons
>>>>   key   key_0   Keys/Buttons
>>>>   key   key_minus       Keys/Buttons
>>>>   key   key_equal       Keys/Buttons
>>>>   key   key_backspace   Keys/Buttons
>>>>   key   key_tab Keys/Buttons
>>>>   key   key_q   Keys/Buttons
>>>>   key   key_w   Keys/Buttons
>>>>   key   key_e   Keys/Buttons
>>>>   key   key_r   Keys/Buttons
>>>>   key   key_t   Keys/Buttons
>>>>   key   key_y   Keys/Buttons
>>>>   key   key_u   Keys/Buttons
>>>>   key   key_i   Keys/Buttons
>>>>   key   key_o   Keys/Buttons
>>>>   key   key_p   Keys/Buttons
>>>>   key   key_leftbrace   Keys/Buttons
>>>>   key   key_rightbrace  Keys/Buttons
>>>>   key   key_enter       Keys/Buttons
>>>>   key   key_leftctrl    Keys/Buttons
>>>>   key   key_a   Keys/Buttons
>>>>   key   key_s   Keys/Buttons
>>>>   key   key_d   Keys/Buttons
>>>>   key   key_f   Keys/Buttons
>>>>   key   key_g   Keys/Buttons
>>>>   key   key_h   Keys/Buttons
>>>>   key   key_j   Keys/Buttons
>>>>   key   key_k   Keys/Buttons
>>>>   key   key_l   Keys/Buttons
>>>>   key   key_semicolon   Keys/Buttons
>>>>   key   key_apostrophe  Keys/Buttons
>>>>   key   key_grave       Keys/Buttons
>>>>   key   key_leftshift   Keys/Buttons
>>>>   key   key_backslash   Keys/Buttons
>>>>   key   key_z   Keys/Buttons
>>>>   key   key_x   Keys/Buttons
>>>>   key   key_c   Keys/Buttons
>>>>   key   key_v   Keys/Buttons
>>>>   key   key_b   Keys/Buttons
>>>>   key   key_n   Keys/Buttons
>>>>   key   key_m   Keys/Buttons
>>>>   key   key_comma       Keys/Buttons
>>>>   key   key_dot Keys/Buttons
>>>>   key   key_slash       Keys/Buttons
>>>>   key   key_rightshift  Keys/Buttons
>>>>   key   key_kpasterisk  Keys/Buttons
>>>>   key   key_leftalt     Keys/Buttons
>>>>   key   key_space       Keys/Buttons
>>>>   key   key_capslock    Keys/Buttons
>>>>   key   key_f1  Keys/Buttons
>>>>   key   key_f2  Keys/Buttons
>>>>   key   key_f3  Keys/Buttons
>>>>   key   key_f4  Keys/Buttons
>>>>   key   key_f5  Keys/Buttons
>>>>   key   key_f6  Keys/Buttons
>>>>   key   key_f7  Keys/Buttons
>>>>   key   key_f8  Keys/Buttons
>>>>   key   key_f9  Keys/Buttons
>>>>   key   key_f10 Keys/Buttons
>>>>   key   key_numlock     Keys/Buttons
>>>>   key   key_scrolllock  Keys/Buttons
>>>>   key   key_kp7 Keys/Buttons
>>>>   key   key_kp8 Keys/Buttons
>>>>   key   key_kp9 Keys/Buttons
>>>>   key   key_kpminus     Keys/Buttons
>>>>   key   key_kp4 Keys/Buttons
>>>>   key   key_kp5 Keys/Buttons
>>>>   key   key_kp6 Keys/Buttons
>>>>   key   key_kpplus      Keys/Buttons
>>>>   key   key_kp1 Keys/Buttons
>>>>   key   key_kp2 Keys/Buttons
>>>>   key   key_kp3 Keys/Buttons
>>>>   key   key_kp0 Keys/Buttons
>>>>   key   key_kpdot       Keys/Buttons
>>>>   key   key_zenkakuhankaku      Keys/Buttons
>>>>   key   key_102nd       Keys/Buttons
>>>>   key   key_f11 Keys/Buttons
>>>>   key   key_f12 Keys/Buttons
>>>>   key   key_ro  Keys/Buttons
>>>>   key   key_katakana    Keys/Buttons
>>>>   key   key_hiragana    Keys/Buttons
>>>>   key   key_henkan      Keys/Buttons
>>>>   key   key_katakanahiragana    Keys/Buttons
>>>>   key   key_muhenkan    Keys/Buttons
>>>>   key   key_kpjpcomma   Keys/Buttons
>>>>   key   key_kpenter     Keys/Buttons
>>>>   key   key_rightctrl   Keys/Buttons
>>>>   key   key_kpslash     Keys/Buttons
>>>>   key   key_sysrq       Keys/Buttons
>>>>   key   key_rightalt    Keys/Buttons
>>>>   key   key_home        Keys/Buttons
>>>>   key   key_up  Keys/Buttons
>>>>   key   key_pageup      Keys/Buttons
>>>>   key   key_left        Keys/Buttons
>>>>   key   key_right       Keys/Buttons
>>>>   key   key_end Keys/Buttons
>>>>   key   key_down        Keys/Buttons
>>>>   key   key_pagedown    Keys/Buttons
>>>>   key   key_insert      Keys/Buttons
>>>>   key   key_delete      Keys/Buttons
>>>>   key   key_macro       Keys/Buttons
>>>>   key   key_mute        Keys/Buttons
>>>>   key   key_volumedown  Keys/Buttons
>>>>   key   key_volumeup    Keys/Buttons
>>>>   key   key_power       Keys/Buttons
>>>>   key   key_kpequal     Keys/Buttons
>>>>   key   key_kpplusminus Keys/Buttons
>>>>   key   key_pause       Keys/Buttons
>>>>   key   key_kpcomma     Keys/Buttons
>>>>   key   key_yen Keys/Buttons
>>>>   key   key_leftmeta    Keys/Buttons
>>>>   key   key_rightmeta   Keys/Buttons
>>>>   key   key_compose     Keys/Buttons
>>>>   key   key_stop        Keys/Buttons
>>>>   key   key_calc        Keys/Buttons
>>>>   key   key_sleep       Keys/Buttons
>>>>   key   key_wakeup      Keys/Buttons
>>>>   key   key_www Keys/Buttons
>>>>   key   key_mail        Keys/Buttons
>>>>   key   key_bookmarks   Keys/Buttons
>>>>   key   key_computer    Keys/Buttons
>>>>   key   key_back        Keys/Buttons
>>>>   key   key_forward     Keys/Buttons
>>>>   key   key_nextsong    Keys/Buttons
>>>>   key   key_playpause   Keys/Buttons
>>>>   key   key_previoussong        Keys/Buttons
>>>>   key   key_stopcd      Keys/Buttons
>>>>   key   key_refresh     Keys/Buttons
>>>>   key   key_f13 Keys/Buttons
>>>>   key   key_f14 Keys/Buttons
>>>>   key   key_f15 Keys/Buttons
>>>>   key   key_search      Keys/Buttons
>>>>   key   key_media       Keys/Buttons
>>>>
>>>>   TYPE  CODE    EVENT NAME
>>>> -----------------------------------------------------------
>>>>   msc   msc_scan        Miscellaneous
>>>>
>>>>   TYPE  CODE    EVENT NAME
>>>> -----------------------------------------------------------
>>>>   led   led_numl        LEDs
>>>>   led   led_capsl       LEDs
>>>>   led   led_scrolll     LEDs
>>>>
>>>>   TYPE  CODE    EVENT NAME
>>>> -----------------------------------------------------------
>>>>
>>>> Detected:
>>>>   5 Sync types
>>>>   142 Key/Button types
>>>>   1 Misc types
>>>>   3 LED types
>>>> hid_new
>>>> [hid] 0.6, written by Hans-Christoph Steiner <hans at eds.org>
>>>> hid_open
>>>> [hid] opened device 2 (/dev/input/event2): Microsoft Microsoft 
>>>> Wheel   Mouse Optical®
>>>>
>>>> Device 0: 'AT Translated Set 2 keyboard' on '/dev/input/event0'
>>>> Device 1: 'SynPS/2 Synaptics TouchPad' on '/dev/input/event1'
>>>> Device 2: 'Microsoft Microsoft Wheel Mouse Optical®' on   
>>>> '/dev/input/event2'
>>>>
>>>>
>>>> Supported events:
>>>>
>>>>   TYPE  CODE    EVENT NAME
>>>> -----------------------------------------------------------
>>>>   syn   syn_report      Synchronization
>>>>   syn   syn_config      Synchronization
>>>>   syn   ?       Synchronization
>>>>
>>>>   TYPE  CODE    EVENT NAME
>>>> -----------------------------------------------------------
>>>>   key   btn_0   btn_left
>>>>   key   btn_1   btn_right
>>>>   key   btn_2   btn_middle
>>>>
>>>>   TYPE  CODE    EVENT NAME
>>>> -----------------------------------------------------------
>>>>   rel   rel_x   Relative Axis
>>>>   rel   rel_y   Relative Axis
>>>>   rel   rel_wheel       Relative Axis
>>>>
>>>> Detected:
>>>>   3 Sync types
>>>>   3 Key/Button types
>>>>   3 Relative Axis types
>>>> hid_new
>>>> [hid] 0.6, written by Hans-Christoph Steiner <hans at eds.org>
>>>> hid_open
>>>> [hid] opened device 0 (/dev/input/event0): AT Translated Set 2  
>>>> keyboard
>>>> hid_float
>>>> hid_start
>>>> [hid] polling started
>>>> INPUT_EVENT: msc msc_scan 57
>>>> INPUT_EVENT: key key_space 1
>>>> INPUT_EVENT: syn syn_report 0
>>>> pd_gui: pd process exited
>>>> Erreur de segmentation
>>>> hid_new
>>>> [hid] 0.6, written by Hans-Christoph Steiner <hans at eds.org>
>>>> hid_open
>>>> [hid] opened device 2 (/dev/input/event2): Microsoft Microsoft 
>>>> Wheel   Mouse Optical®
>>>> hid_float
>>>> hid_start
>>>> [hid] polling started
>>>> INPUT_EVENT: rel rel_x 4
>>>> INPUT_EVENT: syn syn_report 0
>>>> socket receive error: Connection reset by peer (104)
>>>> Erreur de segmentation
>>>> hid_new
>>>> [hid] 0.6, written by Hans-Christoph Steiner <hans at eds.org>
>>>> hid_open
>>>> [hid] opened device 1 (/dev/input/event1): SynPS/2 Synaptics TouchPad
>>>>
>>>> Device 0: 'AT Translated Set 2 keyboard' on '/dev/input/event0'
>>>> Device 1: 'SynPS/2 Synaptics TouchPad' on '/dev/input/event1'
>>>> Device 2: 'Microsoft Microsoft Wheel Mouse Optical®' on   
>>>> '/dev/input/event2'
>>>>
>>>>
>>>> Supported events:
>>>>
>>>>   TYPE  CODE    EVENT NAME
>>>> -----------------------------------------------------------
>>>>   syn   syn_report      Synchronization
>>>>   syn   syn_config      Synchronization
>>>>   syn   ?       Synchronization
>>>>
>>>>   TYPE  CODE    EVENT NAME
>>>> -----------------------------------------------------------
>>>>   key   btn_0   btn_left
>>>>   key   btn_1   btn_right
>>>>   key   btn_2   btn_middle
>>>>   key   btn_5   btn_forward
>>>>   key   btn_6   btn_back
>>>>   key   btn_5   btn_tool_finger
>>>>   key   btn_10  btn_touch
>>>>   key   btn_13  btn_tool_doubletap
>>>>   key   btn_14  btn_tool_tripletap
>>>>
>>>>   TYPE  CODE    EVENT NAME
>>>> -----------------------------------------------------------
>>>>   abs   abs_x   Absolute Axis
>>>>   abs   abs_y   Absolute Axis
>>>>   abs   abs_pressure    Absolute Axis
>>>>   abs   abs_tool_width  Absolute Axis
>>>>
>>>> Detected:
>>>>   3 Sync types
>>>>   9 Key/Button types
>>>>   4 Absolute Axis types
>>>> _______________________________________________
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>>> ______________________________________________________________________ 
>>> __ ____
>>> "Computer science is no more related to the computer than astronomy  
>>> is  related to the telescope."
>>>                                                           -Edsger   
>>> Dykstra
>>
>>
>> _______________________________________________
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> 
> ________________________________________________________________________ 
> ____
> 
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> 
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