Re: kern/45588: Switching many pthreads causes segv

["NARUSE, Yui" <naruse%airemix.jp@localhost>]

The following reply was made to PR kern/45588; it has been noted by GNATS.

From: "NARUSE, Yui" <naruse%airemix.jp@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: David Holland <dholland-bugs%netbsd.org@localhost>, 
kern-bug-people%netbsd.org@localhost,
        gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Subject: Re: kern/45588: Switching many pthreads causes segv
Date: Mon, 14 Nov 2011 03:15:06 +0900

 (2011/11/14 2:45), David Holland wrote:
 >   On Mon, Nov 07, 2011 at 06:45:00PM +0000, naruse%airemix.jp@localhost 
 > wrote:
 >    >  Making many (1000) pthreads and switching them, it causes segv.
 > 
 >   The last time I did something like that (years ago) it killed the
 >   system entirely...
 
 You can reproduce it with my attached code ;-)
 
 >   Are you running out of virtual address space to put thread stacks in?
 
 Yeah, it seems something like it.
 By ktrace/kdump, _lwp_ctl returns error "Can't allocate memory".
 sched_yield(2) should returns error instead of segv.
 
 -- 
 NARUSE, Yui  <naruse%airemix.jp@localhost>