Date: Sat, 16 Jun 2007 18:02:34 +0200 From: Lars Engels <lars.engels@0x20.net> To: current@freebsd.org Subject: btsocks_rfcomm_session_mtx / so_snd_sx LOR Message-ID: <20070616160234.GA16535@e.0x20.net>
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--G4iJoqBmSsgzjUCe Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On a ~10 days old CURRENT I get this LOR: lock order reversal: (sleepable after non-sleepable) 1st 0xc4de5120 btsocks_rfcomm_session_mtx (btsocks_rfcomm_session_mtx) @ /usr/src/sys/modules/netgraph/bluetooth/socket/../../../../netgraph/bluetoo= th/socket/ng_btsocket_rfcomm.c:995 2nd 0xc4b60118 so_snd_sx (so_snd_sx) @ /usr/src/sys/kern/uipc_sockbuf.c:145 KDB: stack backtrace: db_trace_self_wrapper(c07e20d4,e2502b68,c05d64aa,c07e4585,c4b60118,...) at db_trace_self_wrapper+0x26 kdb_backtrace(c07e4585,c4b60118,c07e7d16,c07e7d16,c07e7992,...) at kdb_backtrace+0x29 witness_checkorder(c4b60118,9,c07e7992,91,ff,...) at witness_checkorder+0x6af _sx_xlock(c4b60118,40,c07e7992,91,e2502c00,...) at _sx_xlock+0x77 sblock(c4b600dc,2,c05d5db2,c08d0288,c08d0288,...) at sblock+0x65 sosend_generic(c4b60000,0,0,c46b0e00,0,...) at sosend_generic+0xcb sosend(c4b60000,0,0,c46b0e00,0,...) at sosend+0x54 ng_btsocket_rfcomm_sessions_task(0,1,c07e32ed,52,c3b3b89c,...) at ng_btsocket_rfcomm_sessions_task+0x3c6 taskqueue_run(c3b3b880,e2502cfc,c0587575,0,0,...) at taskqueue_run+0x108 taskqueue_swi_giant_run(0,0,c07dc1d7,40b,c3b3b864,...) at taskqueue_swi_giant_run+0x13 ithread_loop(c3ba1bc0,e2502d38,0,0,c3ba5c1c,...) at ithread_loop+0x1aa fork_exit(c05873cb,c3ba1bc0,e2502d38) at fork_exit+0x51 fork_trampoline() at fork_trampoline+0x8 --- trap 0, eip =3D 0, esp =3D 0xe2502d70, ebp =3D 0 --- --=20 Lars Engels E-Mail: lars.engels@0x20.net =09 --G4iJoqBmSsgzjUCe Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFGdAmaKc512sD3afgRAnxaAJwJHtMc8HM1yH5M3YGkjdm777nKLgCgiE+G N4GYQvMYimgixnTkTOO8Xws= =eGBD -----END PGP SIGNATURE----- --G4iJoqBmSsgzjUCe--
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