Bug 4603

Summary: user id's over 2^16 don't work
Product: [Retired] Red Hat Linux Reporter: jay_lyerly
Component: basesystemAssignee: David Lawrence <dkl>
Status: CLOSED WONTFIX QA Contact:
Severity: high Docs Contact:
Priority: medium    
Version: 6.0   
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Hardware: i386   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 1999-08-21 16:10:36 EDT Type: ---
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Description jay_lyerly 1999-08-18 20:15:03 EDT
User id's with values greater than 65536 ( or is it 65535? )
don't work.  For instance, I can create a user with uid
100,000.  That user can't log in.  Watching syslog during
the login shows a session open for the user, then
immediately close.  'su' spits at the username with a
invalid arguement error and refuses to set the userid to
100,000.

This has become an issue at NCSU where the eos/unity system
now has ~70,000 users.
Comment 1 Bill Nottingham 1999-08-21 16:10:59 EDT
The kernel's UID type is only 16 bits. Sorry. When this
is fixed in the kernel, it will work elsewhere.

You might try experimental 32-bit uid support, available at:
http://www.engin.umich.edu/caen/systems/Linux/highuids