Re: [Linphone-users] linphonec: segmentation fault

[Francois-Xavier KOWALSKI]

Simon,

Recent kernels do notify application segfaults on the kernel console 
(via a handler of the associated MMU processor trap). This is a way for 
administrators that something is going wrong on the machine. Otherwise 
the crash is only visible from the user's context & the disk may fill-up 
silently with core dumps.

The exact format in the syslog is kernel-dependent & hence differs from 
Debian & RHEL (the 2 OS's I have observed this message on).

There is a similar messagefor un-aligned memory access.

--FiX

Simon Morlat wrote:
> Hi,
>
> Can you please run the same test from gdb ?
> I'm a but surprised with this segfault message coming from the kernel.
>
> Simon
>
> Le Wednesday 09 January 2008 18:21:46 Gerard Robin, vous avez écrit :
>   
> > Hello,
> > linphonec craches (on cli):
> > my system:
> > laptop acer 5102wlmi (amd64)
> > OS: Debian Sid
> > linphone: version: 2.0.1-3
> >
> > ~$ linphonec
> > Friend EUGENIOhome <sip:address@hidden> is Gone
> > ------------8<-------------------------------------
> >
> > Ready
> > Warning: video is disabled in linphonec.
> > linphonec> caRegistration on sip:ekiga.net successful.
> > linphonec> call 500
> > linphoneec[7498]: segfault at 0000000000000000 rip 00002af858f467b9 rsp
> > 00007fff526c8c30 error 4
> >
> > ~$ strace -c linphonec
> > ------------------------------8<------------------------------
> > Process 4299 detached
> > % time     seconds  usecs/call     calls    errors syscall
> > ------ ----------- ----------- --------- --------- ----------------
> >    48.76    0.000470         470         1           execve
> >    24.90    0.000240           0       560           read
> >    12.55    0.000121           1       103           mmap
> >    10.37    0.000100           2        51        46 access
> >     3.42    0.000033           0       291           gettimeofday
> >     0.00    0.000000           0        22           write
> >     0.00    0.000000           0        79        37 open
> >     0.00    0.000000           0        52           close
> >     0.00    0.000000           0         5         2 stat
> >     0.00    0.000000           0        38           fstat
> >     0.00    0.000000           0        42           mprotect
> >     0.00    0.000000           0         4           munmap
> >     0.00    0.000000           0         3           brk
> >     0.00    0.000000           0        20           rt_sigaction
> >     0.00    0.000000           0         9           rt_sigprocmask
> >     0.00    0.000000           0        21           ioctl
> >     0.00    0.000000           0         2           pipe
> >     0.00    0.000000           0         1           select
> >     0.00    0.000000           0        11            socket
> >     0.00    0.000000           0        10           connect
> >     0.00    0.000000           0         1           bind
> >     0.00    0.000000           0        11           getsockname
> >     0.00    0.000000           0        10           setsockopt
> >     0.00    0.000000           0         1           clone
> >     0.00    0.000000           0         2           fcntl
> >     0.00    0.000000           0         1           chmod
> >     0.00    0.000000           0         1           getrlimit
> >     0.00    0.000000           0         1           arch_prctl
> >     0.00    0.000000           0        15         2 futex
> >     0.00    0.000000           0         1           set_tid_address
> >     0.00    0.000000           0         1           set_robust_list
> > ------ ----------- ----------- --------- --------- ----------------
> > 100.00    0.000964                  1370        87 total
> >
> > do other users of linphonec have the same issue ?
> >
> > With xwindow linphone starts fine but I can't hear my correspondant and
> > him can't hear me neither.
> >
> > Thanks for any advice.
> >     
>
>
>
>
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>
>   

--
Francois-Xavier "FiX" KOWALSKI     /_ __        Tel:+33 (0)4 76 14 63 27
HP OpenCall Software  - EMTS      / //_/        Fax:+33 (0)4 76 14 51 62
Media-Processing Engineering        /      http://www.hp.com/go/opencall
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