Date: Mon, 16 Mar 2009 21:29:39 +0300 From: pluknet <pluknet@gmail.com> To: FreeBSD-Current <freebsd-current@freebsd.org> Subject: LOR 1) proctree 2) ufs Message-ID: <a31046fc0903161129s687985ebw2142d30eb7d8fb28@mail.gmail.com>
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Hello. A yet another of the numerous fs witness warns. This one seems not to be reported anywhere else yet. It's triggered with ktrace, certainly. lock order reversal: 1st 0xc08bbf30 proctree (proctree) @ /usr/src/sys/kern/kern_ktrace.c:718 2nd 0xc672fc70 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2205 KDB: stack backtrace: db_trace_self_wrapper(c08292a7,e80279cc,c0604035,c05f5c2b,c082c14d,...) at db_trace_self_wrapper+0x26 kdb_backtrace(c05f5c2b,c082c14d,c54ef068,c54f6978,e8027a28,...) at kdb_backtrace+0x29 _witness_debugger(c082c14d,c672fc70,c081f7ec,c54f6978,c0832f2c,...) at _witness_debugger+0x25 witness_checkorder(c672fc70,9,c0832f2c,89d,0,...) at witness_checkorder+0x839 __lockmgr_args(c672fc70,80100,c672fcd8,0,0,...) at __lockmgr_args+0x7a7 ffs_lock(e8027b34,c0603ddb,c0832f2c,80100,c672fc18,...) at ffs_lock+0xa1 VOP_LOCK1_APV(c088e5e0,e8027b34,c05b5da3,c08a3d60,c672fc18,...) at VOP_LOCK1_APV+0xb5 _vn_lock(c672fc18,80100,c0832f2c,89d,4,...) at _vn_lock+0x78 vrele(c672fc18,0,c0822999,36b,c5b1e5d0,...) at vrele+0x15a ktrops(1fe,0,c0822999,384,1,...) at ktrops+0x28d ktrsetchildren(1fe,0,c0822999,300,0,...) at ktrsetchildren+0x5c ktrace(c60f3690,e8027cf8,10,c082d384,c0871298,...) at ktrace+0x622 syscall(e8027d38) at syscall+0x2b4 Xint0x80_syscall() at Xint0x80_syscall+0x20 --- syscall (45, FreeBSD ELF32, ktrace), eip = 0x280d11cf, esp = 0xbfbfecbc, ebp = 0xbfbfed68 --- -- wbr, pluknet
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