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Date: Wed, 9 Apr 2014 22:58:09 +0700
From: Alexey Dokuchaev <danfe@nsu.ru>
To: ppc@freebsd.org
Subject: fatal kernel trap: exception = 0x300 (data storage interrupt) on
 fresh -CURRENT
Message-ID: <20140409155809.GA97583@regency.nsu.ru>
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Hi there,

Once I started to do ports tinderbox builds, this Mac mini G4 of mine panics
after some time into the build (couple of times already):

  fatal kernel trap:

     exception       = 0x300 (data storage interrupt)
     virtual address = 0x41c445c4
     dsisr           = 0x40000000
     srr0            = 0x573034
     srr1            = 0x9032
     lr              = 0x572f78
     curthread       = 0x14ca8000
            pid = 76123, comm = make

If not doing tinderboxish ports building, this box can stay alive for weeks,
surviving occasional (but pretty heavy) port builds manually from /usr/ports.
I am not sure at this point if it's due to software of hardware, but it seems
easy enough to reproduce.

/var/crash/core.txt.0 does not seem to contain much useful information, but
is available if needed.  Ditto for 37M of vmcore.0.

./danfe