Re: 2.6.36/2.6.37: broken compatibility with userspace input-utils ?
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: 2011-01-27 16:39:46
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On Wed, Jan 26, 2011 at 10:18:53PM -0500, Mark Lord wrote:
On 11-01-26 09:12 PM, Dmitry Torokhov wrote:quoted
On Wed, Jan 26, 2011 at 08:07:29PM -0500, Mark Lord wrote:quoted
On 11-01-26 08:01 PM, Mark Lord wrote:quoted
On 11-01-26 10:05 AM, Mark Lord wrote:quoted
On 11-01-25 09:00 PM, Dmitry Torokhov wrote:..quoted
quoted
I wonder if the patch below is all that is needed...Nope. Does not work here: $ lsinput protocol version mismatch (expected 65536, got 65537)Heh.. I just noticed something *new* in the bootlogs on my system: kernel: Registered IR keymap rc-rc5-tv udevd-event[6438]: run_program: '/usr/bin/ir-keytable' abnormal exit kernel: input: i2c IR (Hauppauge) as /devices/virtual/rc/rc0/input7 kernel: ir-keytable[6439]: segfault at 8 ip 00000000004012d2 sp 00007fff6d43ca60 error 4 in ir-keytable[400000+7000] kernel: rc0: i2c IR (Hauppauge) as /devices/virtual/rc/rc0 kernel: ir-kbd-i2c: i2c IR (Hauppauge) detected at i2c-0/0-0018/ir0 [ivtv i2c driver #0] That's udev invoking ir-keyboard when the ir-kbd-i2c kernel module is loaded, and that is also ir-keyboard (userspace) segfaulting when run.Note: I tried to capture an strace of ir-keyboard segfaulting during boot (as above), but doing so kills the system (hangs on boot). The command from udev was: /usr/bin/ir-keytable -a /etc/rc_maps.cfg -s rc0Does it die when you try to invoke the command by hand? Can you see where?No, it does not seem to segfault when I unload/reload ir-kbd-i2c and then invoke it by hand with the same parameters. Quite possibly the environment is different when udev invokes it, and my strace attempt with udev killed the system, so no info there.
Hmm, what about compiling with debug and getting a core then? -- Dmitry