Segfault in "profiles" binary

[Jelmer Vernooij]

Hi,

On Tue, 2007-06-26 at 13:38 +0200, ant at bankaktiengesellschaft.de wrote:
> during the testing stage of an XP migration with roaming user profiles 
> which are currently hosted on an NT4 machine we've experienced a segfault 
> in the profiles binary.
> 
> The segfault occurres during the rewriting stage of the user profiles to 
> achieve the algorithmic RID-UID mapping which samba has and NT not as we 
> already have Unix-UIDs for each and every user and to prevent permission 
> problems by not abiding to the RID=( (uid * 2) + 1000 ) rule of samba.
> 
> Debugger output of the segfault follows:
> 
> (gdb) set args -c S-1-5-21-596271630-1476544438-1821 -n 
> S-1-5-21-596271630-14765 44438-2175 ntuser.dat 
> (gdb) r 
> Starting program: /root/profiles -c S-1-5-21-596271630-1476544438-1821 
> -n S-1-5- 21-596271630-1476544438-2175 ntuser.dat 
> Failed to read a valid object file image from memory. 
^^^^ I wonder where this error comes from - maybe the mmap profiles
tries to do is failing?

> Is anybody able to give some hints to track down this issue?
Can you perhaps run profiles under valgrind and see if that reveals any
errors? 

valgrind /root/profiles -c S-1-5-21-596271630-1476544438-1821 -n S-1-5-
21-596271630-1476544438-2175 ntuser.dat 

Cheers,

Jelmer

-- 
Jelmer Vernooij <jelmer at samba.org> - http://samba.org/~jelmer/