Hi, i was trying to execute an user space program through a kernel module,
i've used the same method of linux-$KERNELVERSION/drivers/usb/usb.c, and this is the interesting code..
[...]
char *argv[3];
char *envp[3];
argv [0] = "/usr/sbin/httpd";
argv [1] = "httpd";
argv [2] = 0;
envp[0] = "HOME=/";
envp[1] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
envp[2] = 0;
call_usermodehelper(argv [0], argv, envp);
[...]
but when I run it, it causes a kernel panic during the call_usermodehelper() call.. this is the kernel panic message:
kernel BUG at sched.c:564
invalid operand: 0000
CPU: 0
EIP: 0010:[<c0114d7b] Not tainted
EFLAGS: 00010282
[...]
<0> Kernel panic: Aiee, killing interrupt handler!
In interrupt handler - not syncing
----------
any help is welcome!!
Thanks in advance
Marco
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