On Thu, Jan 31, 2008 at 01:35:39PM +0100, Peter Holm wrote:
> On Wed, Jan 30, 2008 at 08:06:40PM +0300, Ruslan Ermilov wrote:
> > On Thu, Sep 21, 2006 at 05:16:36PM +0200, Peter Holm wrote:
> > > On Thu, Sep 21, 2006 at 05:15:47PM +0400, Ruslan Ermilov wrote:
> > > > On Thu, Sep 21, 2006 at 11:14:33AM +0100, Gavin Atkinson wrote:
> > > > > On Thu, 2006-09-21 at 11:44 +0300, Dmitry Pryanishnikov wrote:
> > > > > > Hello!
> > > > > >
> > > > > > I've noticed (with the 2-day old RELENG_6) that I still can't
> > > > > > configure my
> > > > > > 256Mb swap partition as a dump device for i386 machine with 1Gb RAM
> > > > > > despite
> > > > > > having minidumps enabled:
> > > > > >
> > > > > > [EMAIL PROTECTED] sysctl debug.minidump
> > > > > > debug.minidump: 1
> > > > > > [EMAIL PROTECTED] dumpon -v /dev/ad0s3b
> > > > > > /dev/ad0s3b is smaller than physical memory
> > > > > >
> > > > > > Am I correctly understand that minidumps should lift the restriction
> > > > > >
> > > > > > sizeof(dumpdev) >= sizeof(RAM)
> > > > >
> > > > > Yes.
> > > > >
> > > > > http://www.freebsd.org/cgi/cvsweb.cgi/src/sbin/dumpon/dumpon.c.diff?r1=1.22&r2=1.23
> > > > > needs to be MFC'd.
> > > > >
> > > > I sent an MFC request to [EMAIL PROTECTED]
> > > >
> > >
> > > >From time to time I've had problems with minidumps on HEAD. Calling
> > > doadump() seems to work ok, but after a reset there's no dump. I
> > > haven't had time to test this systematically. Has anybody else seen
> > > this problem?
> > >
> > I think this was the same problem as was diagnosed (minidumps + amd64 +
> > SMP). Though it's not fixed yet, it's understood and its damage is
> > avoided.
> >
> No, this was and is i386. After changing "doadump;reset" to
> doadump;continue" it would seem that the dumps has a higher chance
> of making it to the disk.
>
"call doadump" and the "continue" renders my systems unusable
due to a regression made in kern_shutdown.c,v 1.122. I'm now
living with this patch:
%%%
Index: kern_shutdown.c
===================================================================
RCS file: /home/ncvs/src/sys/kern/kern_shutdown.c,v
retrieving revision 1.189
diff -u -p -r1.189 kern_shutdown.c
--- kern_shutdown.c 28 Jan 2008 19:04:07 -0000 1.189
+++ kern_shutdown.c 1 Feb 2008 15:40:38 -0000
@@ -249,6 +249,7 @@ doadump(void)
else
#endif
dumpsys(&dumper);
+ dumping--;
}
static int
%%%
Cheers,
--
Ruslan Ermilov
[EMAIL PROTECTED]
FreeBSD committer
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