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Date: Sun, 18 May 2014 23:03:10 +0200
From: Hans Petter Selasky <hps@selasky.org>
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To: John Baldwin <jhb@FreeBSD.org>, 
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Subject: Re: panic: resource_list_add: resource entry is busy
References: <53763B0F.4040003@selasky.org> <5377529C.3000508@FreeBSD.org>
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Hi,

First call:

resource_list_add:
KDB: stack backtrace:
#0 0xffffffff8089e5f6 at kdb_backtrace+0x66
#1 0xffffffff808960f0 at resource_list_add+0x50
#2 0xffffffff805ea939 at pccard_function_init+0x279
#3 0xffffffff805ebede at pccard_probe_and_attach_child+0x7e
#4 0xffffffff805ec6ce at pccard_driver_added+0x5e
#5 0xffffffff808951b5 at devclass_driver_added+0x75
#6 0xffffffff80895cf3 at devclass_add_driver+0x103
#7 0xffffffff8084f1e8 at module_register_init+0xa8
#8 0xffffffff80846cde at linker_load_module+0x85e
#9 0xffffffff808473f4 at kern_kldload+0xb4
#10 0xffffffff80847504 at sys_kldload+0x84
#11 0xffffffff80c4a4aa at amd64_syscall+0x5ea
#12 0xffffffff80c34b47 at Xfast_syscall+0xf7
resource_list_add: resource entry is busy

Second call:

KDB: stack backtrace:
#0 0xffffffff8089e5f6 at kdb_backtrace+0x66
#1 0xffffffff8089610a at resource_list_add+0x6a
#2 0xffffffff805ea939 at pccard_function_init+0x279
#3 0xffffffff805ebede at pccard_probe_and_attach_child+0x7e
#4 0xffffffff805ec6ce at pccard_driver_added+0x5e
#5 0xffffffff808951b5 at devclass_driver_added+0x75
#6 0xffffffff80895cf3 at devclass_add_driver+0x103
#7 0xffffffff8084f1e8 at module_register_init+0xa8
#8 0xffffffff80846cde at linker_load_module+0x85e
#9 0xffffffff808473f4 at kern_kldload+0xb4
#10 0xffffffff80847504 at sys_kldload+0x84
#11 0xffffffff80c4a4aa at amd64_syscall+0x5ea
#12 0xffffffff80c34b47 at Xfast_syscall+0xf7


Seems like there is a duplicate resource?


--HPS