Date: Wed, 13 Feb 2008 23:40:36 -0800 (PST) From: Doug Barton <dougb@FreeBSD.org> To: freebsd-current@freebsd.org Subject: 2 new LORs using tonight's HEAD: UFS and DEVFS Message-ID: <alpine.BSF.1.00.0802132338380.894@ync.qbhto.arg>
next in thread | raw e-mail | index | archive | help
I got the following using sources that are up to the minute: SMP: AP CPU #1 Launched! WARNING: WITNESS option enabled, expect reduced performance. 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/devfs_vnops.c:201 KDB: stack backtrace: db_trace_self_wrapper(c07757e3,e3ef6bbc,c05a3c9e,c0777c85,c5639454,...) at db_trace_self_wrapper+0x26 kdb_backtrace(c0777c85,c5639454,c076961a,c076961a,c076965b,...) at kdb_backtrace+0x29 witness_checkorder(c5639454,9,c076965b,c9,c7,...) at witness_checkorder+0x6de _sx_xlock(c5639454,0,c076965b,c9,c5639454,...) at _sx_xlock+0x7d devfs_allocv(c530a500,c5693000,e3ef6c28,c5310000,c077db14,...) at devfs_allocv+0x144 devfs_root(c5693000,2,c084c6d8,c5310000,ca,...) at devfs_root+0x51 set_rootvnode(c084c6c0,0,c077db14,5ed,c05e03b0,...) at set_rootvnode+0x2b vfs_mountroot(c07fa6f0,4,c076d677,260,0,...) at vfs_mountroot+0x356 start_init(0,e3ef6d38,c076efe5,30c,c530d000,...) at start_init+0x65 fork_exit(c0533ef0,0,e3ef6d38) at fork_exit+0xb8 fork_trampoline() at fork_trampoline+0x8 --- trap 0, eip = 0, esp = 0xe3ef6d70, ebp = 0 --- Trying to mount root from ufs:/dev/ad0s2a 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 KDB: stack backtrace: db_trace_self_wrapper(c07757e3,e3ef69e4,c05a3c9e,c0777c85,c5693000,...) at db_trace_self_wrapper+0x26 kdb_backtrace(c0777c85,c5693000,c077dc1d,c077dc1d,c077e1b5,...) at kdb_backtrace+0x29 witness_checkorder(c5693000,1,c077e1b5,16c,e3ef6a24,...) at witness_checkorder+0x6de _lockmgr(c5693000,2001,c5693030,c077e1b5,16c,...) at _lockmgr+0x1e5 vfs_busy(c5693000,0,0,c5310000,e3ef6b58,...) at vfs_busy+0x198 lookup(e3ef6b44,c077d8bc,c6,bf,c52e192c,...) at lookup+0x764 namei(e3ef6b44,c5310094,c07bf264,c077db14,c5693030,...) at namei+0x2eb kern_unlink(c5310000,c077df57,1,628,0,...) at kern_unlink+0x40 vfs_mountroot_try(c077e111,c076c5ac,c07677ae,1,c05e03b0,...) at vfs_mountroot_try+0x470 vfs_mountroot(c07fa6f0,4,c076d677,260,0,...) at vfs_mountroot+0x418 start_init(0,e3ef6d38,c076efe5,30c,c530d000,...) at start_init+0x65 fork_exit(c0533ef0,0,e3ef6d38) at fork_exit+0xb8 fork_trampoline() at fork_trampoline+0x8 --- trap 0, eip = 0, esp = 0xe3ef6d70, ebp = 0 --- 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 KDB: stack backtrace: db_trace_self_wrapper(c07757e3,e3ef69d0,c05a3c9e,c0777c85,c54d4e28,...) at db_trace_self_wrapper+0x26 kdb_backtrace(c0777c85,c54d4e28,c076ce97,c076ce97,c077e1b5,...) at kdb_backtrace+0x29 witness_checkorder(c54d4e28,1,c077e1b5,80d,e3ef6a04,...) at witness_checkorder+0x6de _lockmgr(c54d4e28,3041,c54d4e58,c077e1b5,80d,...) at _lockmgr+0x1e5 ffs_lock(e3ef6a78,c055d1ed,c08058b4,3041,c54d4dd0,...) at ffs_lock+0x8a VOP_LOCK1_APV(c07d2800,e3ef6a78,c076c5aa,3,c54d4e58,...) at VOP_LOCK1_APV+0xa5 _vn_lock(c54d4dd0,3041,c077e1b5,80d,0,...) at _vn_lock+0xf2 vget(c54d4dd0,3041,c5310000,4a9,c1851180,...) at vget+0x109 vnode_pager_lock(c1851000,0,c07903e2,127,e3ef6be8,...) at vnode_pager_lock+0x1ad vm_fault(c5312000,80b7000,2,8,80b7140,...) at vm_fault+0x1df trap_pfault(5,0,c079a03f,2c8,c,...) at trap_pfault+0xf9 trap(e3ef6d38) at trap+0x25d calltrap() at calltrap+0x6 --- trap 0xc, eip = 0x80480e5, esp = 0xbfbfef10, ebp = 0xbfbfef30 ---
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?alpine.BSF.1.00.0802132338380.894>