Subject: Re: fork1 and new stack
To: None <firstname.lastname@example.org, email@example.com>
From: None <firstname.lastname@example.org>
Date: 04/26/2002 21:30:12
| > What information SEGV gives you? Your clone started and segv-faulted
| > right away?
| The child starts by an infinite loop, so that I can attach it with gdb,
| then jump outside the loop. During the different try I made to get
| things working, I have been able to attach the child. I had a SIGSEGV on
| a stack access.
If you really want to debug this you need to debug the kernel not the
child. Put a breakpoint in the data fault handler just before calling
trapsignal(). Then dump out the trap frames and uvmspace associated with
the child to see what's really going on there.