On Sat, Nov 30, 2013 at 3:43 PM, Toralf Förster <toralf.foers...@gmx.de> wrote:
> On 11/30/2013 03:37 PM, Toralf Förster wrote:
>>
>> Today I realized that a UML cores if I use the xterm for the in/out.
>>
>> I do usually use "con0=fd:0,fd:1 con=pts" to start a 32bit UML but because 
>> the xterm way was fine during the past few weeks (yes, I know, it was broken 
>> for a longer time before) and the only change yesterday was to upgrade from 
>> vanilla kernel 3.12.1 to 3.12.2 I'm wondering if there's a "suspicous" 
>> commit in that stable kernel which could be the reason ?
>>
>>
>> FWIW :
>> tfoerste@n22 ~ $ gdb --core=/mnt/ramdisk/core 
>> /home/tfoerste/devel/linux/linux -n -batch -ex bt
>> [New LWP 29559]
>> Core was generated by `/home/tfoerste/devel/linux/linux earlyprintk 
>> ubda=/home/tfoerste/virtual/uml/tr'.
>> Program terminated with signal 11, Segmentation fault.
>> #0  finish_task_switch (prev=0xffff9d2f, rq=<optimized out>) at 
>> kernel/sched/core.c:1993
>> 1993            prev_state = prev->state;
>> #0  finish_task_switch (prev=0xffff9d2f, rq=<optimized out>) at 
>> kernel/sched/core.c:1993
>> #1  0x08427418 in context_switch (next=<optimized out>, prev=0x46d9eecc, 
>> rq=<optimized out>) at kernel/sched/core.c:2130
>> #2  __schedule () at kernel/sched/core.c:2568
>> #3  0x08427505 in schedule () at kernel/sched/core.c:2604
>> #4  0x0808b912 in sigsuspend (set=0x46d9eecc) at kernel/signal.c:3559
>> #5  0x080646d8 in winch_thread (arg=0x46d9eecc) at 
>> arch/um/drivers/chan_user.c:210
>> #6  0x083da38e in clone ()
>>
>>
>
> Pff - glibc was upgrade from 2.15-r3 to 2.16 too - /me hope, that it is
> not glibc.

Please more details.
Does Linus' tree work?
Does it crash immediately?
...

Just booted an UML with xterm. Works fine...

-- 
Thanks,
//richard

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