Date: Mon, 5 Aug 2013 19:36:52 -0500 (CDT) From: Dan Mack <mack@macktronics.com> To: Davide Italiano <davide@freebsd.org> Cc: "Sam Fourman Jr." <sfourman@gmail.com>, freebsd-current@freebsd.org Subject: Re: LOR on head ... Message-ID: <alpine.BSF.2.00.1308051927220.10876@olive.macktronics.com> In-Reply-To: <CACYV=-E0mGQ401mJ1CbndiJHcv4cj-q0Xckn%2BtOaHCcGUrPvNQ@mail.gmail.com> References: <alpine.BSF.2.00.1308051742010.10696@olive.macktronics.com> <CAOFF%2BZ2PzChhXpOeyeaySbSSXp0v_fjw52yfv3n6fpe-kqaeOQ@mail.gmail.com> <CACYV=-E0mGQ401mJ1CbndiJHcv4cj-q0Xckn%2BtOaHCcGUrPvNQ@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Mon, 5 Aug 2013, Davide Italiano wrote: > The LOR is a false positive. > See the comment in sys/ufs/ufs/ufs_dirhash.c > Also, switching motherboards is not related to this in any way. You'll > eventually hit that LOR report, unless you disabled WITNESS. Ah, thank you Davide; sorry for the noise ... I've been using only ZFS for so long that I haven't run across this yet. I'm also getting these too which appear to be the same sort of thing, no? lock order reversal: 1st 0xfffffe010157d418 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2099 2nd 0xffffff80ec37fa78 bufwait (bufwait) @ /usr/src/sys/ufs/ffs/ffs_vnops.c:262 3rd 0xfffffe010157b9a0 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2099 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xffffff81166cecb0 kdb_backtrace() at kdb_backtrace+0x39/frame 0xffffff81166ced60 witness_checkorder() at witness_checkorder+0xd4f/frame 0xffffff81166cedf0 __lockmgr_args() at __lockmgr_args+0x6f2/frame 0xffffff81166cef20 ffs_lock() at ffs_lock+0x84/frame 0xffffff81166cef70 VOP_LOCK1_APV() at VOP_LOCK1_APV+0xf5/frame 0xffffff81166cefa0 _vn_lock() at _vn_lock+0xab/frame 0xffffff81166cf010 vget() at vget+0x70/frame 0xffffff81166cf060 vfs_hash_get() at vfs_hash_get+0xf5/frame 0xffffff81166cf0b0 ffs_vgetf() at ffs_vgetf+0x41/frame 0xffffff81166cf140 softdep_sync_buf() at softdep_sync_buf+0x8fa/frame 0xffffff81166cf1f0 ffs_syncvnode() at ffs_syncvnode+0x258/frame 0xffffff81166cf270 ffs_truncate() at ffs_truncate+0x5ca/frame 0xffffff81166cf450 ufs_direnter() at ufs_direnter+0x891/frame 0xffffff81166cf510 ufs_makeinode() at ufs_makeinode+0x573/frame 0xffffff81166cf6d0 VOP_CREATE_APV() at VOP_CREATE_APV+0xea/frame 0xffffff81166cf700 vn_open_cred() at vn_open_cred+0x300/frame 0xffffff81166cf850 kern_openat() at kern_openat+0x1f5/frame 0xffffff81166cf9a0 amd64_syscall() at amd64_syscall+0x265/frame 0xffffff81166cfab0 Xfast_syscall() at Xfast_syscall+0xfb/frame 0xffffff81166cfab0 --- syscall (5, FreeBSD ELF64, sys_open), rip = 0x80093d3ea, rsp = 0x7fffffffd758, rbp = 0x7fffffffd7b0 --- dan -- Dan Mack
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?alpine.BSF.2.00.1308051927220.10876>