Date: Tue, 13 Oct 2009 23:27:27 +0200 (CEST) From: Alexander Best <alexbestms@math.uni-muenster.de> To: Harald Schmalzbauer <h.schmalzbauer@omnilan.de> Cc: freebsd-current@freebsd.org Subject: Re: Where to report LORs? (ffs and unionfs LORs included Message-ID: <permail-2009101321272780e26a0b00003dd6-a_best01@message-id.uni-muenster.de> In-Reply-To: <4AD0ED9F.3080706@omnilan.de>
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Harald Schmalzbauer schrieb am 2009-10-10: > Alexander Best schrieb am 07.07.2009 21:33 (localtime): > >try http://sources.zabbadoz.net/freebsd/lor.html > I still see a unionfs LOR with RELENG_8 which is not listed, so I'd > like to report it again. > lock order reversal: > 1st 0xc372c488 unionfs (unionfs) @ > /FlashBSD/src/sys/fs/unionfs/union_subr.c:356 > 2nd 0xc372c594 ufs (ufs) @ /FlashBSD/src/sys/kern/vfs_subr.c:2188 > KDB: stack backtrace: > db_trace_self_wrapper(c0616390,c08cd5d5,c3416770,c3416500,d5c42864,.. > .) at db_trace_self_wrapper+0x26 > _witness_debugger(c08cd5d5,c372c594,c08c0703,c3416500,c08d4ec2,...) > at _witness_debugger+0x49 > witness_checkorder(c372c594,9,c08d4ec2,88c,0,...) at > witness_checkorder+0x6ec > __lockmgr_args(c372c594,80100,c372c5b0,0,0,...) at > __lockmgr_args+0xc97 > ffs_lock(d5c42958,8,c36c4764,80100,c372c53c,...) at ffs_lock+0x96 > VOP_LOCK1_APV(c09374a0,d5c42958,c05d89e9,c09477c0,c372c53c,...) at > VOP_LOCK1_APV+0x9a > _vn_lock(c372c53c,80100,c08d4ec2,88c,c0877c6e,...) at _vn_lock+0x46 > vrele(c372c53c,d5c429d8,c372c4a4,0,0,...) at vrele+0x12a > unionfs_noderem(c372c430,c36c46c0,d5c42a44,c06764fc,d5c42a20,...) at > unionfs_noderem+0x1e5 > unionfs_reclaim(d5c42a20,d5c42a20,0,0,c372c4a4,...) at > unionfs_reclaim+0x1b > vgonel(c372c4a4,0,c08d4ec2,9c5,c372c4a4,...) at vgonel+0x100 > vrecycle(c372c430,c36c46c0,d5c42aa4,c0675c29,d5c42a8c,...) at > vrecycle+0x6a > unionfs_inactive(d5c42a8c,d5c42a8c,c08d4ec2,924,c0947780,...) at > unionfs_inactive+0x28 > vinactive(c372c594,d5c42ac0,c08d4ec2,8aa,c3451de0,...) at > vinactive+0x6a > vput(c372c430,ffffffdf,c344ab80,0,c36c46c0,...) at vput+0x205 > kern_statat_vnhook(c36c46c0,0,ffffff9c,28209e1c,0,...) at > kern_statat_vnhook+0xe0 > kern_statat(c36c46c0,0,ffffff9c,28209e1c,0,...) at kern_statat+0x3c > kern_stat(c36c46c0,28209e1c,0,d5c42c18,c0a83a18,...) at > kern_stat+0x36 > stat(c36c46c0,d5c42cf8,8,d5c42d38,c0916cd0,...) at stat+0x2b > syscall(d5c42d38) at syscall+0x176 > Xint0x80_syscall() at Xint0x80_syscall+0x20 > --- syscall (188, FreeBSD ELF32, stat), eip = 0x281c6c2b, esp = > 0xbfbfe96c, ebp = 0xbfbfea68 --- > So far I couldn't notice any deadlock, but the box is not in > production yet. > -Harry you might also want to write Bjoern Zeeb (http://wiki.freebsd.org/BjoernZeeb) with a link to your report. he's the guy maintaining the lor page. cheers. alex
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