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Re: kern/45588: Switching many pthreads causes segv

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

From: "NARUSE, Yui" <>
Cc: David Holland <>,,,
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, 
 > 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  <>

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