Date: Thu, 22 Jan 2009 21:33:48 -0600 From: "Paul Tice" <ptice@aldridge.com> To: <freebsd-current@freebsd.org> Subject: UFS/VFS lock order reversal on stock 8.0-200812-AMD64 Message-ID: <E8FEAE26C87DED4EB49EFF99D1C7A51DFF6927@ald-mail02.corporate.aldridge.com>
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I'm new, so please advise me (gently?) about list protocol and such if = needed. Using stock 8.0-CURRENT-200812-amd64, I am getting the messages below. I've run memtest 3.4 through 3 passes with no errors. I did go through an entire boot/install with no errors by setting all = caching to Write-Through in BIOS, but that leads to unacceptable = performance, and I'm not sure the slowness wasn't masking the problem. Motherboard is a Supermicro x7dvl3, 8G of RAM (4 x 2G matched within a = small range of serial numbers.) Chipset is an Intel 5000V with a ESB2 Southbridge. Cpu is 2 Quad core = Xeon 5400 Series @ 2GHz. This is a fairly new CPU with a larger cache = than previous Xeons (12Meg L2). The error occurs whether I use the LSI 1068E attached via PCI-E(x4) or = the ESB2 onboard SATA. I do not get the error when mounting another drive after booting, I do = see the same error when shutting down. I also notice (maybe related) text video corruption during shutdown. = (XGI Volari=99 Z7 PCI-E Graphics Processor) Am I too wordy, or did I forget something? Trying to mount root from ufs:/dev/ad20s1a lock order reversal: 1st 0xffffff0001701070 user map (user map) @ = /usr/src/sys/vm/vm_map.c:3115 2nd 0xffffff0001ea87f8 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2079 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x81e __lockmgr_args() at __lockmgr_args+0xca8 ffs_lock() at ffs_lock+0x8c VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b _vn_lock() at _vn_lock+0x47 vget() at vget+0x8b vnode_pager_lock() at vnode_pager_lock+0x1d0 vm_fault() at vm_fault+0x1e2 trap_pfault() at trap_pfault+0x128 trap() at trap+0x51c calltrap() at calltrap+0x8 --- trap 0xc, rip =3D 0x40014f, rsp =3D 0x7fffffffee70, rbp =3D = 0x7fffffffee90 --- Later in the boot sequence lock order reversal: 1st 0xfffffffec0491330 bufwait (bufwait) @ = /usr/src/sys/kern/vfs_bio.c:2443 2nd 0xffffff0004163000 dirhash (dirhash) @ = /usr/src/sys/ufs/ufs/ufs_dirhash.c:263 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x81e _sx_xlock() at _sx_xlock+0x55 ufsdirhash_acquire() at ufsdirhash_acquire+0x33 ufsdirhash_add() at ufsdirhash_add+0x19 ufs_direnter() at ufs_direnter+0x889 ufs_makeinode() at ufs_makeinode+0x338 VOP_CREATE_APV() at VOP_CREATE_APV+0x8d vn_open_cred() at vn_open_cred+0x479 kern_openat() at kern_openat+0x169 syscall() at syscall+0x1bf Xfast_syscall() at Xfast_syscall+0xab --- syscall (5, FreeBSD ELF64, open), rip =3D 0x800daceac, rsp =3D = 0x7fffffffe7c8, rbp =3D 0x8 --- Thanks Paul
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