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.

-- 
MfG/Sincerely
Toralf Förster
pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3

------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT 
organizations don't have a clear picture of how application performance 
affects their revenue. With AppDynamics, you get 100% visibility into your 
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349351&iu=/4140/ostg.clktrk
_______________________________________________
User-mode-linux-devel mailing list
User-mode-linux-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel

Reply via email to