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Date: Mon, 05 Apr 2004 21:25:05 +0200
From: Jan-Espen Pettersen <sigsegv@leakingmemory.org>
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Subject: Re: cvsup failing with "ASSERT failed"
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Jon Noack wrote:

> On 8/26/2003 10:58 PM, none wrote:
>
>> A couple of times, now, on both FBSD-5.1-CURRENT and FBSD-4.8-STABLE 
>> whilst running with 2MB of RAM, cvsup has "croaked" with the 
>> following error:
>>
>> ***
>> *** runtime error:
>> ***    ASSERT failed
>> ***    file "/usr/ports/lang/ezm3/work/ezm3-1.0/libs/m3core/src/runtime/
>> common/RTHeapMap.m3", line 35
>> ***
>>    use option @M3stackdump to get a stack trace
>> Abort trap (core dumped)
>

I've also seen this kind of crash on a system with ata (and/or memory) 
corruption.