Lock Order Reversal

[Marc Olzheim]

lock order reversal
 1st 0xc5d4c900 inp (tcpinp) @ /usr/src/sys/netinet/tcp_usrreq.c:303
 2nd 0xc6a0cd10 so_rcv (so_rcv) @ /usr/src/sys/netinet/tcp_usrreq.c:304
 3rd 0xc68c1630 inp (tcpinp) @ /usr/src/sys/netinet/in_pcb.c:971

kern.ostype: FreeBSD
kern.osrelease: 5.4-PRERELEASE
kern.osrevision: 199506
kern.version: FreeBSD 5.4-PRERELEASE #0: Thu Mar 10 15:43:26 CET 2005
    root at rave.ilse.net:/usr/obj/usr/src/sys/SE3DEBUG
hw.machine: i386
hw.model: Intel(R) Xeon(TM) CPU 3.06GHz
hw.ncpu: 4
hw.byteorder: 1234
hw.physmem: 4151205888
hw.usermem: 3891949568
hw.pagesize: 4096
hw.floatingpoint: 1
hw.machine_arch: i386
hw.realmem: 4160225280
hw.aac.iosize_max: 65536
hw.ata.ata_dma: 1
hw.ata.wc: 1
hw.ata.atapi_dma: 1
hw.pci.enable_io_modes: 1
hw.pci.do_powerstate: 0
hw.pci.host_mem_start: 2147483648
hw.pci.irq_override_mask: 57080
hw.intr_storm_threshold: 500
hw.availpages: 1013478
hw.bus.devctl_disable: 0
hw.kbd.keymap_restrict_change: 0
hw.syscons.saver.keybonly: 1
hw.syscons.bell: 1
hw.syscons.sc_no_suspend_vtswitch: 0
hw.busdma.total_bpages: 33
hw.busdma.zone0.total_bpages: 1
hw.busdma.zone0.free_bpages: 1
hw.busdma.zone0.reserved_bpages: 0
hw.busdma.zone0.active_bpages: 0
hw.busdma.zone0.total_bounced: 0
hw.busdma.zone0.total_deferred: 0
hw.busdma.zone0.lowaddr: 0xffffffff
hw.busdma.zone0.alignment: 4096
hw.busdma.zone0.boundary: 0
hw.busdma.zone1.total_bpages: 32
hw.busdma.zone1.free_bpages: 32
hw.busdma.zone1.reserved_bpages: 0
hw.busdma.zone1.active_bpages: 0
hw.busdma.zone1.total_bounced: 0
hw.busdma.zone1.total_deferred: 0
hw.busdma.zone1.lowaddr: 0xffffffff
hw.busdma.zone1.alignment: 2
hw.busdma.zone1.boundary: 65536
hw.clockrate: 3065
hw.instruction_sse: 1
hw.acpi.supported_sleep_state: S1 S4 S5
hw.acpi.power_button_state: S5
hw.acpi.sleep_button_state: S1
hw.acpi.lid_switch_state: NONE
hw.acpi.standby_state: S1
hw.acpi.suspend_state: S3
hw.acpi.sleep_delay: 1
hw.acpi.s4bios: 0
hw.acpi.verbose: 0
hw.acpi.reset_video: 1
hw.acpi.cpu.cx_supported: C1/0
hw.acpi.cpu.cx_lowest: C1
hw.acpi.cpu.cx_usage: 100.00%
hw.em0.debug_info: -1
hw.em0.stats: -1
hw.em0.rx_int_delay: 0
hw.em0.tx_int_delay: 66
hw.em0.rx_abs_int_delay: 66
hw.em0.tx_abs_int_delay: 66
hw.em1.debug_info: -1
hw.em1.stats: -1
hw.em1.rx_int_delay: 0
hw.em1.tx_int_delay: 66
hw.em1.rx_abs_int_delay: 66
hw.em1.tx_abs_int_delay: 66

Marc
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