[XenAccess-devel] Segmentation fault when calling the same function twice

[Daniele S. <da...@ya...>]

Hi!
I've tried to build a simple library, sort of a
wrapper for your examples (process-list,
process-data). It seems there are little problems when
calling two times the same function. For example, if I
modify the file process-list.c, in this way (I've
replaced the name "main" with "mainb" and created
another "main" that calls two times "mainb"):

int mainb (int argc, char **argv)
{
    xa_instance_t xai;
    unsigned char *memory = NULL;
    uint32_t offset, next_process, list_head;
    char *name = NULL;
    int pid = 0;

......
}

int main (int argc, char **argv)
{
  printf("first\n");
  mainb(argc, argv);
  printf("second\n");
  mainb(argc, argv);
  return 0;
}

I get a segmentation fault error:

[examples]# ./run ./process-list 1
first
[    1] init
[    2] migration/0
[    3] ksoftirqd/0
[    4] watchdog/0
[    5] events/0
[    6] khelper
[    7] kthread
[    8] xenwatch
[    9] xenbus
[   16] kblockd/0
[   20] khubd
[   58] pdflush
[   59] pdflush
[   61] aio/0
[   60] kswapd0
[  577] kseriod
[  657] kpsmoused
[  660] nash-hotplug
[  678] kjournald
[ 1098] syslogd
[ 1104] klogd
[ 1148] exim4
[ 1154] inetd
[ 1163] sshd
[ 1180] atd
[ 1183] cron
[ 1198] login
[ 1199] getty
[ 1200] getty
[ 1201] getty
[ 1202] getty
[ 1203] getty
[ 1204] bash
[ 1218] sshd
[ 1222] sftp-server
second
./run: line 4:  6347 Segmentation fault      $@
[examples]#        

I'm using Xenaccess 0.2 on Fedora 5, with Xen 3.0.2-2.
I 've tried to find the problem and probably it's
something with xa_access_kernel_symbol routine.
Thanks



Chiacchiera con i tuoi amici in tempo reale! 
 http://it.yahoo.com/mail_it/foot/*http://it.messenger.yahoo.com