Date: Mon, 31 Oct 2005 21:57:39 GMT From: Arjo Hooimeijer <arjo.hooimeijer@xs4all.nl> To: freebsd-gnats-submit@FreeBSD.org Subject: amd64/88299: swapcontext fails with errno 0 Message-ID: <200510312157.j9VLvddQ070632@www.freebsd.org> Resent-Message-ID: <200510312200.j9VM0bdG046364@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 88299
>Category: amd64
>Synopsis: swapcontext fails with errno 0
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-amd64
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Oct 31 22:00:36 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator: Arjo Hooimeijer
>Release: 6.0-RC1
>Organization:
>Environment:
FreeBSD deathstar.starwars.nl.eu.org 6.0-RC1 FreeBSD 6.0-RC1 #0: Sun Oct 16 19:09:55 CEST 2005 root@yoda.starwars.nl.eu.org:/usr/obj/usr/src/sys/DEATHSTAR amd64
>Description:
The dns/powerdns port contains a program 'pdns_recursor', which calls swapcontext. Sooner or later, swapcontext fails, but the error no is 0.
The error occurs when the following code is executed:
if(swapcontext(&d_kernel,i->second.context)) { // swaps back to the above point 'A'
perror("swapcontext in schedule2");
exit(EXIT_FAILURE);
}
The following error is logged:
swapcontext in schedule2: Unknown error: 0
>How-To-Repeat:
Install the powerdns port on 6.0-RC1 amd64 and run the pdns_recursor program.
The pdns_recursor program will just eventually stop. Or, to see it happen, run it with the switch: --daemon=no
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200510312157.j9VLvddQ070632>