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Date: Sun, 10 Jul 2005 12:28:45 +0200
From: Martin <nakal@nurfuerspam.de>
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Subject: LOR: vr0 vs ACPI root bus
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Hi,

the other witness warning which I promised to report
in my last email is actually a LOR which occurs on
ACPI shutdown/reboot/halt. I haven't seen it mentioned
in the LOR-list yet. Here the output. These are two
pages, so I wrote down only the essential info.

lock order reversal
1st vr0 @/usr/src/sys/pci/if_vr.c:806
2nd ACPI root bus
@/usr/src/sys/modules/acpi/acpi/../../../dev/acpica/acpi.c:1056

KDB stack backtrace:
kdb_backtrace
witness_checkorder
_sx_xlock
acpi_release_ressource
bus_generic_release_ressource
ressource_list_release
bus_generic_rl_release_ressource
bus_release_ressource
vr_detach
vr_shutdown
device_shutdown
bus_generic_shutdown
device_shutdown
bus_generic_shutdown
device_shutdown
bus_generic_shutdown
acpi_shutdown
device_shutdown
bus_generic_shutdown
device_shutdown
bus_generic_shutdown
device_shutdown
root_bus_module_handler
module_shutdown
boot
reboot
syscall
Xint0x80_syscall

Martin