Date: Thu, 14 Feb 2008 11:46:29 +0100 From: Ed Schouten <ed@fxq.nl> To: Doug Barton <dougb@FreeBSD.org> Cc: FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: 2 new LORs using tonight's HEAD: UFS and DEVFS Message-ID: <20080214104629.GS1340@hoeg.nl> In-Reply-To: <alpine.BSF.1.00.0802132338380.894@ync.qbhto.arg> References: <alpine.BSF.1.00.0802132338380.894@ync.qbhto.arg>
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--pzbqGaOtRNiVr7w4 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable * Doug Barton <dougb@FreeBSD.org> wrote: > lock order reversal: > 1st 0xc54d3e28 devfs (devfs) @ /usr/local/src/sys/kern/vfs_subr.c:2061 > 2nd 0xc5639454 devfsmount (devfsmount) @ /usr/local/src/sys/fs/devfs/dev= fs_vnops.c:201 > lock order reversal: > 1st 0xc56ab168 ufs (ufs) @ /usr/local/src/sys/kern/vfs_subr.c:2061 > 2nd 0xc5693000 vfslock (vfslock) @ /usr/local/src/sys/kern/vfs_subr.c:364 > lock order reversal: > 1st 0xc5312044 user map (user map) @ /usr/local/src/sys/vm/vm_map.c:3111 > 2nd 0xc54d4e28 ufs (ufs) @ /usr/local/src/sys/kern/vfs_subr.c:2061 I'm getting those three as well, including this one during shutdown: | lock order reversal: | 1st 0xc676a29c vfslock (vfslock) @ /store/home/ed/p4/mpsafetty/sys/kern/= vfs_mount.c:1242 | 2nd 0xc67b4c08 syncer (syncer) @ /store/home/ed/p4/mpsafetty/sys/kern/vf= s_subr.c:2156 | KDB: stack backtrace: | db_trace_self_wrapper(c06f9676,e8e57ae8,c059ff2e,c06fba39,c67b4c08,...) a= t db_trace_self_wrapper+0x26 | kdb_backtrace(c06fba39,c67b4c08,c0702aac,c0702aac,c0702214,...) at kdb_ba= cktrace+0x29 | witness_checkorder(c67b4c08,9,c0702214,86c,c076fc74,...) at witness_check= order+0x6de | _lockmgr(c67b4c08,2002,c67b4c38,c0702214,86c,...) at _lockmgr+0x43c | vop_stdlock(e8e57b80,c0702214,c059f7f8,2002,c67b4bb0,...) at vop_stdlock+= 0x39 | VOP_LOCK1_APV(c073f100,e8e57b80,84f,e8e57ba0,c67b4c38,...) at VOP_LOCK1_A= PV+0xa5 | _vn_lock(c67b4bb0,2002,c0702214,86c,0,...) at _vn_lock+0xf2 | vrele(c67b4bb0,0,c0701b60,4f0,4da,...) at vrele+0x142 | dounmount(c676a29c,80000,c6b2eaa0,da544aec,0,...) at dounmount+0x372 | vfs_unmountall(c06f6810,0,c06f68c0,127,0,...) at vfs_unmountall+0x4e | boot(c076b170,0,c06f68c0,ab,e8e57d2c,...) at boot+0x3cf | reboot(c6b2eaa0,e8e57cfc,4,c06fcf5b,c0730028,...) at reboot+0x4b | syscall(e8e57d38) at syscall+0x253 | Xint0x80_syscall() at Xint0x80_syscall+0x20 | --- syscall (55, FreeBSD ELF32, reboot), eip =3D 0x280b24fb, esp =3D 0xbf= bfecac, ebp =3D 0xbfbfece8 --- --=20 Ed Schouten <ed@fxq.nl> WWW: http://g-rave.nl/ --pzbqGaOtRNiVr7w4 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (FreeBSD) iEYEARECAAYFAke0HAUACgkQ52SDGA2eCwUdxACfbeMV6nLluGsIHSG38aErz56f 9sEAniRuAqycwfBbcfFF8UWUukKmpVSQ =hrL7 -----END PGP SIGNATURE----- --pzbqGaOtRNiVr7w4--
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