Attempt to write outside dump device boundaries.

Kris Kennaway kris at FreeBSD.org
Sun Jun 29 12:06:45 UTC 2008


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?"

Kris


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