Date: Wed, 11 Aug 2004 14:03:45 +0000 (UTC) From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: FreeBSD current mailing list <current@freebsd.org> Subject: RE: Lock order reversal in 5.2-CURRENT Message-ID: <Pine.BSF.4.53.0408111402260.40767@e0-0.zab2.int.zabbadoz.net> In-Reply-To: <200408111527566.SM01804@manrikigusari> References: <200408111527566.SM01804@manrikigusari>
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On Wed, 11 Aug 2004, Terrence Koeman wrote: > lock order reversal > 1st 0xc0645aa0 sched lock (sched lock) @ > /usr/src/sys/kern/subr_sleepqueue.c:623 > 2nd 0xc06486ec sleepq chain (sleepq chain) @ > /usr/src/sys/kern/subr_sleepqueue.c:223 > KDB: stack backtrace: > kdb_backtrace(c05fe96f,c06486ec,c05fdc8a,c05fdc8a,c05fdc97) at > kdb_backtrace+0x2e > witness_checkorder(c06486ec,9,c05fdc97,df,67e) at witness_checkorder+0x6a6 > _mtx_lock_spin_flags(c06486ec,0,c05fdc97,df,0) at _mtx_lock_spin_flags+0x8d > sleepq_lookup(c0641d80,c05fe5e3,687,c0645aa0,d3bbc9ec) at sleepq_lookup+0x57 > sleepq_broadcast(c0641d80,0,ffffffff,d3bbca14,c04b4152) at > sleepq_broadcast+0x31 > wakeup(c0641d80,1,c05fbc09,179,c1a632c0) at wakeup+0x21 for the archives: looks quite similar to http://sources.zabbadoz.net/freebsd/lor.html#004 so I added it there. It got patched in the other place. -- Bjoern A. Zeeb bzeeb at Zabbadoz dot NeT
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