Re: Problems with USB

Hello,

     yes it look that this patch can work. But who send that signal. I
tried to hack kernel to print signal number and it looks, that khubd gets
SIGHUP.

Petr Titera
[e-mail]

                                                                                            
                    Greg KH                                                                 
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                    13.01.2003           Subject:     Re: Problems with USB                 
                    06:55                                                                   
                                                                                            
                                                                                            

On Sun, Jan 12, 2003 at 09:44:42PM +0100, [e-mail] wrote:
> Hello all,
>
>      I have problems with USB in recent kernels (tested on 2.5.56) and
> RedHat 8.0. Right after end of script  '/etc/rc.d/rc.sysinit' and before
> script '/etc/rc.d/rc' which runs after USB  daemon khubd gets some signal
> and ends. From this point USB does not work as as system does not get any
> plug events. If I disable USB at startup and load modules later,
everything
> works.

Can you try this patch that I just added to the USB tree?  It seems to
work for me.

thanks,

greg k-h

# USB: Fix from Jeff and Pete to keep khubd from being able to be killed
#      by a signal

diff -Nru a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
--- a/drivers/usb/core/hub.c  Sun Jan 12 22:03:13 2003
+++ b/drivers/usb/core/hub.c  Sun Jan 12 22:03:13 2003
@@ -1085,6 +1085,12 @@

     daemonize();

+    /* keep others from killing us */
+    spin_lock_irq(&current->sig->siglock);
+    sigemptyset(&current->blocked);
+    recalc_sigpending();
+    spin_unlock_irq(&current->sig->siglock);
+
     /* Setup a nice name */
     strcpy(current->comm, "khubd");