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Date: Sun, 29 Jun 2008 19:02:09 +0400
From: Ruslan Ermilov <ru@freebsd.org>
To: Kris Kennaway <kris@freebsd.org>
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Cc: FreeBSD Current <freebsd-current@freebsd.org>
Subject: Re: Attempt to write outside dump device boundaries.
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On Sun, Jun 29, 2008 at 02:06:42PM +0200, Kris Kennaway wrote:
> Ruslan Ermilov wrote:
> > On Sun, Jun 29, 2008 at 01:09:52PM +0200, Kris Kennaway wrote:
> >> I am frequently getting this when trying to minidump on amd64:
> >>
> >> Physical memory: 8168 MB
> >> Dumping 2133 MB: 2118 2102 2086 2070 2054 2038 2022 2006 1990 1974 1958 
> >> 1942 1926 1910 1894 1878 1862 1846 1830 1814 1798 1782 1766 1750 1734 
> >> 1718 1702 1686 1670 1654 1638 1622 1606 1590 1574 1558 1542 1526 1510 
> >> 1494 1478 1462 1446 1430 1414 1398 1382 1366 1350 1334 1318 1302 1286 
> >> 1270 1254 1238 1222 1206 1190 1174 1158 1142 1126 1110 1094 1078 1062 
> >> 1046 1030 1014 998 982 966 950 934 918 902 886 870 854 838 822 806 790 
> >> 774 758 742 726 710 694 678 662 646 630 614 598 582 566 550 534 518 502 
> >> 486 470 454 438 422 406 390 374 358 342 326 310 294 278 262 246 230 214 
> >> 198 182 166 150 134 118 102 86 70 54 38 22 6Attempt to write outside 
> >> dump device boundaries.
> >>
> >> ** DUMP FAILED (ERROR 6) **
> >> = 0
> >>
> > Yes, it happens most often on SMP machines.  Previously it could
> > overwrite data on your disk (in our case it destroyed GEOM mirrors).
> > Now the attempt is logged and prevented.
> > 
> > What's your question?  ;)
> 
> I'd have thought it was obvious: "why?"
> 
http://lists.freebsd.org/pipermail/freebsd-current/2008-January/082752.html


Cheers,
-- 
Ruslan Ermilov
ru@FreeBSD.org
FreeBSD committer