From owner-freebsd-ppc@FreeBSD.ORG  Sun Sep  8 01:09:11 2013
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Subject: Kernel panic during page-out
From: Justin Hibbits <jhibbits@freebsd.org>
To: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org>,
 Nathan Whitehorn <nwhitehorn@freebsd.org>
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I'm seeing a kernel panic on my G5, I think when it tries to page out to
swap, with the message:

Lock vm object not exclusively locked @ .../aim/mmu_oea64.c:1529
backtrace:
.kdb_backtrace+0x5c
.vpanic+0x13c
.panic+0x38
.__rw_assert+0x184
.moea64_is_modified+0x54
.moea64_remove_all+0x78
.vm_pageout_object_deactivate_pages+0x2e4
.vm_daemon+0x358
.fork_exit+0xdc
.fork_trampoline+0x10

This machine has 12GiB RAM, running r254922.

- Justin