FreeBSD lock order reversal (LOR) #26

lock order reversal
 1st 0xc15c9ee8 re0 (network driver) @ sys/dev/re/if_re.c:830
 2nd 0xc0a1b060 ACPI root bus (ACPI root bus) @ sys/modules/acpi/acpi/../../../dev/acpica/acpi.c:841
		
KDB: stack backtrace:
kdb_backtrace(0,ffffffff,c08c03c0,c08c0938,c085008c) at kdb_backtrace+0x29
witness_checkorder(c0a1b060,9,c0a155c8,349) at witness_checkorder+0x544
_sx_xlock(c0a1b060,c0a155c8,349,0,1) at _sx_xlock+0x50
acpi_release_resource(c15d6980,c15fd580,4,10,c15ff140) at acpi_release_resource+0x23
bus_generic_release_resource(c15d6180,c15fd580,4,10,c15ff140) at bus_generic_release_resource+0x64
resource_list_release(c15fd604,c15f6880,c15fd580,4,10) at resource_list_release+0xfb
bus_generic_rl_release_resource(c15f6880,c15fd580,4,10,c15ff140) at bus_generic_rl_release_resource+0x5e
bus_release_resource(c15fd580,4,10,c15ff140,c15fd580) at bus_release_resource+0x61
re_probe(c15fd580) at re_probe+0x1b5
device_probe_child(c15f6880,c15fd580,c15fd680,c15fd580,c15f6880) at device_probe_child+0xc4
device_probe_and_attach(c15fd580) at device_probe_and_attach+0x51
bus_generic_attach(c15f6880,6,c14e9880,1,c0a03c90) at bus_generic_attach+0x16
acpi_pci_attach(c15f6880) at acpi_pci_attach+0xec
device_attach(c15f6880,2e696370,c15f6880,c15d6180,0) at device_attach+0x58
device_probe_and_attach(c15f6880) at device_probe_and_attach+0xb4
bus_generic_attach(c15d6180,c15d6180,c15dbbd4,0,0) at bus_generic_attach+0x16
acpi_pcib_attach(c15d6180,c15dbbd4,0,c0c21c5c,c0616e9c) at acpi_pcib_attach+0x14e
acpi_pcib_acpi_attach(c15d6180) at acpi_pcib_acpi_attach+0x20a
device_attach(c15d6180,c0a1a5a8,c15d6180,c15d6980,0) at device_attach+0x58
device_probe_and_attach(c15d6180) at device_probe_and_attach+0xb4
bus_generic_attach(c15d6980,c15d6980,c14e9ac0,1,c15d6900) at bus_generic_attach+0x16
acpi_probe_children(c15d6980,1d910,c15d6980,c15d6980,0) at acpi_probe_children+0x63
acpi_attach(c15d6980) at acpi_attach+0x523
device_attach(c15d6980,c0a19620,c15d6980,c15d6b00,0) at device_attach+0x58
device_probe_and_attach(c15d6980) at device_probe_and_attach+0xb4
bus_generic_attach(c15d6b00,c15d6b00,c15d6b00,c0c21d44,c061326c) at bus_generic_attach+0x16
nexus_attach(c15d6b00) at nexus_attach+0x13
device_attach(c15d6b00,c0888510,c15d6b00,c0888510,c29000) at device_attach+0x58
device_probe_and_attach(c15d6b00) at device_probe_and_attach+0xb4
root_bus_configure(c14fba80,c0811569,0) at root_bus_configure+0x16
configure(0,c1ec00,c1e000,0,c043f555) at configure+0x1b
mi_startup() at mi_startup+0x96
begin() at begin+0x2c
lock order reversal
 1st 0xc177b6e8 re0 (network driver) @ sys/dev/re/if_re.c:1255
 2nd 0xc0a18000 ACPI root bus (ACPI root bus) @
 	sys/modules/acpi/acpi/../../../dev/acpica/acpi.c:913
...
		

• freebsd-current (thread)
• patch if_re.c
• freebsd-current (thread)