Date: Tue, 15 Jul 2008 20:47:03 +0100 From: john@basicnets.co.uk To: Kostik Belousov <kostikbel@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: Fresh 7.0 Install: Fatal Trap 12 panic when put under load Message-ID: <20080715204703.1xshles8aogwksw4@mail.basicnets.co.uk> In-Reply-To: <20080715193321.GX17123@deviant.kiev.zoral.com.ua> References: <854CADB9D95147CAB10BC35887A8E5DC@emea.hubersuhner.net> <20080715102135.GA18082@eos.sc1.parodius.com> <B23D0848E1304F719FEBDC3EDC54B914@emea.hubersuhner.net> <487C8486.1040904@FreeBSD.org> <20080715201915.8m5j3k1lw00k4gck@mail.basicnets.co.uk> <20080715193321.GX17123@deviant.kiev.zoral.com.ua>
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>> #9 0xffffffff8067d3ee in uma_zalloc_arg (zone=0xffffff00bfed07e0,
>> udata=0x0,
>> flags=-256) at /usr/src/sys/vm/uma_core.c:1835
> From the frame #9, please do
> p *zone
> I am esp. interested in the value of the uz_ctor member.
>
> It seems that it becomes corrupted, it value should be 0, as this seems
> to be ffs inode zone. I suspect that gdb would show 0x6400000000 instead.
I am afraid that you may need to spell out each step for me :-(
(kgdb) p *zone
No symbol "zone" in current context.
(kgdb) list *0xffffffff8067d3ee
0xffffffff8067d3ee is in uma_zalloc_arg (/usr/src/sys/vm/uma_core.c:1835).
1830 ("uma_zalloc: Bucket pointer mangled."));
1831 cache->uc_allocs++;
1832 critical_exit();
1833 #ifdef INVARIANTS
1834 ZONE_LOCK(zone);
1835 uma_dbg_alloc(zone, NULL, item);
1836 ZONE_UNLOCK(zone);
1837 #endif
1838 if (zone->uz_ctor != NULL) {
1839 if (zone->uz_ctor(item,
zone->uz_keg->uk_size,
Is this that you were looking for?
John
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