Subject: Re: nathan_sw and proc flags
To: None <email@example.com>
From: Jason R Thorpe <firstname.lastname@example.org>
Date: 12/07/2001 20:20:00
On Sat, Dec 08, 2001 at 04:17:48PM +1300, Gregory McGarry wrote:
> In the non-SA world, the proc-dependent flags are inherited from
> the parent in cpu_fork(). In the SA world, the flags are split
> between LWP-specific and proc-specific. ISTM that current
> implementations of cpu_fork() do ensure the inheritance of the
> LWP-specific flags, but the proc-specific flags are not
> initialised and usually filled with junk. The symptoms I saw
> where corrupted page tables on NetBSD/hp300.
I guess you mean this assignment:
p2->p_md.md_flags = p1->p_md.md_flags;
> Since cpu_fork() doesn't know whether it is handling a process
> fork or an LWP fork, who is responsible for maintaing proc-specific
* cpu_fork() needs to be renamed to cpu_lwp_fork().
* A new cpu_proc_fork() needs to be added which would
be called by uvm_proc_fork().
-- Jason R. Thorpe <email@example.com>