Date: Tue, 9 Dec 2008 15:22:09 -0800 From: David Wolfskill <david@catwhisker.org> To: current@freebsd.org Subject: Re: Laptop w/ dark screen & no (working) keyboard Message-ID: <20081209232209.GD60731@albert.catwhisker.org> In-Reply-To: <20081209230134.GC60731@albert.catwhisker.org> References: <20081209230134.GC60731@albert.catwhisker.org>
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--684cmtc/Pyvt2LSS Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable After a reboot -- which exhibited the same symptoms initially: login: lock order reversal: 1st 0xc55bfad0 ufs (ufs) @ /usr/src/sys/ufs/ffs/ffs_snapshot.c:424 2nd 0xd8d3fc50 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:2443 3rd 0xc52d337c ufs (ufs) @ /usr/src/sys/ufs/ffs/ffs_snapshot.c:545 KDB: stack backtrace: db_trace_self_wrapper(c0bb77be,c4bbb40c,c0851645,4,c0bb2cb1,...) at db_trac= e_self_wrapper+0x26 kdb_backtrace(4,c0bb2cb1,c4d21810,c4d24e18,c4bbb468,...) at kdb_backtrace+0= x29 _witness_debugger(c0bba487,c52d337c,c0bade76,c4d24e18,c0bd8a13,...) at _wit= ness_debugger+0x25 witness_checkorder(c52d337c,9,c0bd8a13,221,0,...) at witness_checkorder+0x8= 39 __lockmgr_args(c52d337c,80100,c52d3398,0,0,...) at __lockmgr_args+0x797 ffs_lock(c4bbb578,c0e35ee0,c55860a4,80100,c52d3324,...) at ffs_lock+0x8a VOP_LOCK1_APV(c0cbf480,c4bbb578,c4bbb598,c0cd3400,c52d3324,...) at VOP_LOCK= 1_APV+0xa5 _vn_lock(c52d3324,80100,c0bd8a13,221,c4d55800,...) at _vn_lock+0x5e ffs_snapshot(c51c0a00,c53029c0,c0bda378,15e,3,...) at ffs_snapshot+0x1527 ffs_mount(c51c0a00,c5586000,c0bc0c2b,3dc,c4e8ac80,...) at ffs_mount+0x146f vfs_donmount(c5586000,211000,c52fdb00,c52fdb00,201000,...) at vfs_donmount+= 0x1312 nmount(c5586000,c4bbbcf8,c,c4bbbd38,c0c9b790,...) at nmount+0xbe syscall(c4bbbd38) at syscall+0x2a3 -- I got involved in some other things, when I happened to see (on the serial console): Xint0x80_syscall() at Xint0x80_syscall+0x20 --- syscall (378, FreeBSD ELF32, nmount), eip =3D 0x280e6c9b, esp =3D 0xbfb= feb1c, ebp =3D 0xbfbfee78 --- info: [drm] Setting GART location based on new memory map info: [drm] Loading R200 Microcode info: [drm] writeback test succeeded in 2 usecs drm0: [MPSAFE] drm0: [ITHREAD] lock order reversal: 1st 0xd8d3fc50 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:2443 2nd 0xc4f9f01c snaplk (snaplk) @ /usr/src/sys/ufs/ffs/ffs_snapshot.c:794 KDB: stack backtrace: db_trace_self_wrapper(c0bb77be,c4bbb40c,c0851645,4,c0bb2cb1,...) at db_trac= e_self_wrapper+0x26 kdb_backtrace(4,c0bb2cb1,c4d21810,c4d25638,c4bbb468,...) at kdb_backtrace+0= x29 _witness_debugger(c0bba46e,c4f9f01c,c0bd8a75,c4d25638,c0bd8a13,...) at _wit= ness_debugger+0x25 witness_checkorder(c4f9f01c,9,c0bd8a13,31a,c55bfaec,...) at witness_checkor= der+0x839 __lockmgr_args(c4f9f01c,80400,c55bfaec,0,0,...) at __lockmgr_args+0x797 ffs_lock(c4bbb578,0,0,80400,c55bfa78,...) at ffs_lock+0x8a VOP_LOCK1_APV(c0cbf480,c4bbb578,c211a614,c0cd3400,c55bfa78,...) at VOP_LOCK= 1_APV+0xa5 _vn_lock(c55bfa78,80400,c0bd8a13,31a,0,...) at _vn_lock+0x5e ffs_snapshot(c51c0a00,c53029c0,c0bda378,15e,3,...) at ffs_snapshot+0x28c6 ffs_mount(c51c0a00,c5586000,c0bc0c2b,3dc,c4e8ac80,...) at ffs_mount+0x146f vfs_donmount(c5586000,211000,c52fdb00,c52fdb00,201000,...) at vfs_donmount+= 0x1312 nmount(c5586000,c4bbbcf8,c,c4bbbd38,c0c9b790,...) at nmount+0xbe syscall(c4bbbd38) at syscall+0x2a3 Xint0x80_syscall() at Xint0x80_syscall+0x20 --- syscall (378, FreeBSD ELF32, nmount), eip =3D 0x280e6c9b, esp =3D 0xbfb= feb1c, ebp =3D 0xbfbfee78 --- FreeBSD/i386 (Amnesiac) (ttyu0) login:=20 [end of cut/paste] and the screen lit up. :-} Peace, david --=20 David H. Wolfskill david@catwhisker.org Depriving a girl or boy of an opportunity for education is evil. See http://www.catwhisker.org/~david/publickey.gpg for my public key. --684cmtc/Pyvt2LSS Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAkk+/aAACgkQmprOCmdXAD2o5QCfVj2rTOYyoU4mEIw0lgtKUvQU +t0AnjwnbUYlKmNJlutODQ/2rH3yGqGF =Rucp -----END PGP SIGNATURE----- --684cmtc/Pyvt2LSS--
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