Date: Tue, 27 Jul 2010 16:38:11 +0100 From: Anton Shterenlikht <mexas@bristol.ac.uk> To: freebsd-current@freebsd.org Subject: panic: lock (sleep mutex) ral0 not locked @ /usr/src/sys/dev/ral/rt2560.c:2011 Message-ID: <20100727153810.GA47120@mech-cluster241.men.bris.ac.uk>
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On amd64 r... I tried to plug in pcmcia wireless ral(4) card. The card is detected as: ral0: <Ralink Technology RT2560> mem 0xb7fb0000-0xb7fb1fff irq 20 at device( ral0: MAC/BBP RT2560 (rev 0x00), RF RT2522 ral0: [ITHREAD] Then I get this panic: ral0: could not read from BBP ral0: timeout waiting for BBP panic: lock (sleep mutex) ral0 not locked @ /usr/src/sys/dev/ral/rt2560.c:2011 cpuid = 0 KDB: enter: panic [ thread pid 0 tid 100065 ] Stopped at kdb_enter+0x3d: movq $0,0x755100(%rip) db> bt Tracing pid 0 tid 100065 td 0xffffff00026d7440 kdb_enter() at kdb_enter+0x3d panic() at panic+0x17b witness_unlock() at witness_unlock+0x297 _mtx_unlock_flags() at _mtx_unlock_flags+0x87 rt2560_ioctl() at rt2560_ioctl+0xbf taskqueue_run() at taskqueue_run+0x63 taskqueue_thread_loop() at taskqueue_thread_loop+0x54 fork_exit() at fork_exit+0x12a fork_trampoline() at fork_trampoline+0xe --- trap 0, rip = 0, rsp = 0xffffff803x1f5d30, rbp = 0 --- many thanks anton -- Anton Shterenlikht Room 2.6, Queen's Building Mech Eng Dept Bristol University University Walk, Bristol BS8 1TR, UK Tel: +44 (0)117 331 5944 Fax: +44 (0)117 929 4423
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