Date: Mon, 20 Jul 2009 21:10:44 GMT From: Rene Ladan <rene@FreeBSD.org> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/136943: [lor] wpi0_com_lock / wpi0 Message-ID: <200907202110.n6KLAiCT085681@www.freebsd.org> Resent-Message-ID: <200907202120.n6KLK5Ej078472@freefall.freebsd.org>
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>Number: 136943 >Category: kern >Synopsis: [lor] wpi0_com_lock / wpi0 >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Jul 20 21:20:04 UTC 2009 >Closed-Date: >Last-Modified: >Originator: Rene Ladan >Release: 8.0-BETA2 amd64 >Organization: >Environment: FreeBSD self.rene-ladan.nl 8.0-BETA2 FreeBSD 8.0-BETA2 #0: Wed Jul 15 21:48:41 UTC 2009 root@mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 >Description: lock order reversal: 1st 0xffffff80002dc018 wpi0_com_lock (wpi0_com_lock) @ /usr/src/sys/modules/wpi/../../dev/wpi/if_wpi.c:1291 2nd 0xffffff00024c0010 wpi0 (network driver) @ /usr/src/sys/modules/wpi/../../dev/wpi/if_wpi.c:2068 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x81e _mtx_lock_flags() at _mtx_lock_flags+0x78 wpi_raw_xmit() at wpi_raw_xmit+0x7a ieee80211_send_mgmt() at ieee80211_send_mgmt+0x4d5 sta_newstate() at sta_newstate+0x42e wpi_newstate() at wpi_newstate+0xee ieee80211_newstate_cb() at ieee80211_newstate_cb+0xac taskqueue_run() at taskqueue_run+0x96 taskqueue_thread_loop() at taskqueue_thread_loop+0x3f fork_exit() at fork_exit+0x12a fork_trampoline() at fork_trampoline+0xe --- trap 0, rip = 0, rsp = 0xffffff803c22bd30, rbp = 0 --- >How-To-Repeat: GENERIC + if_wpi + wpifw ( + other modules) wlan0 with WPA2 authentication >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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