Date: Mon, 15 Aug 2005 16:37:16 +0000 (UTC) From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: Julien Gabel <jpeg@thilelli.net> Cc: FreeBSD current mailing list <current@freebsd.org> Subject: Re: Fresh install of BETA2: console error about a LOR... Message-ID: <Pine.BSF.4.53.0508151635540.39103@e0-0.zab2.int.zabbadoz.net> In-Reply-To: <58808.192.168.1.20.1124118739.squirrel@webmail.thilelli.net> References: <60366.192.168.1.20.1123951488.squirrel@webmail.thilelli.net> <Pine.BSF.4.53.0508131653020.11795@e0-0.zab2.int.zabbadoz.net> <58808.192.168.1.20.1124118739.squirrel@webmail.thilelli.net>
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On Mon, 15 Aug 2005, Julien Gabel wrote: > >> During the configuration phase, just after installing 6.0-BETA2 on a > >> notebook, i got the following message on the console: > >> > >> lock order reversal > >> 1st 0xc097b240 UMA lock (UMA lock) @ /usr/src/sys/vm/uma_core.c:1494 > >> 2nd 0xc1060144 system map (system map) @ /usr/src/sys/vm/vm_kern.c:295 > > > looks pretty much like > > http://sources.zabbadoz.net/freebsd/lor.html#110 > > As reported by Thierry Herbelot, the #109 appears on a UP and SMP system, > but the #110 seems to be SMP only (at least is only reproduced on a HTT > system with SMP kernel). > > When i got the second LOR, it was followed by a panic and a crash (three > times on four). It was during 'make buildworld' each time, with this > message: > > Memory modified after free 0xc2af2500(256) val=deadc0df @ 0xc2af2508 > panic: receive: m == 0 so->so_rcv.sb_cc == 4294967295 > cpuid = 0 > KDB: enter: panic > [thread pid 3908 tid 100152 ] > Stopped at kdb_enter+0x30: leave > db> > > I didn't have a crash dump yet, since it was during a post-installation > phase. I am currently running an UP kernel to avoid problem, but can > switch to a SMP one if somebody is interested. in case you get it a gain please type db> where so we'll know the code path where this happens. That might help or not. -- Bjoern A. Zeeb bzeeb at Zabbadoz dot NeT
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