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From: "Martin J. Bligh" <mbligh@aracnet.com>
To: john stultz <johnstul@us.ibm.com>, Andrew Morton <akpm@osdl.org>
Cc: lkml <linux-kernel@vger.kernel.org>,
	venkatesh.pallipadi@intel.com, Dave H <haveblue@us.ibm.com>
Subject: Re: [PATCH] linux-2.6.0-test4_cyclone-hpet-fix_A0
Date: Thu, 04 Sep 2003 07:48:00 -0700	[thread overview]
Message-ID: <27100000.1062686879@[10.10.2.4]> (raw)
In-Reply-To: <1062659651.2246.11.camel@laptop.cornchips.homelinux.net>

>> > Also, while apparently unrelated, but touching code from the HPET patch,
>> > I'm seeing some form of memory corruption on the 16way x440 which is
>> > overwriting the wait_timer_tick pointer in apic.c I added some
>> > initialized corruption pad variables around the pointer and they're
>> > definitely being trampled. I'll have to look into it further tomorrow.
>> 
>> Hum.  Please do this:
>> 
>> mnm:/usr/src/25> nm -n vmlinux|grep -3 wait_timer_tick
>> c043b360 D using_apic_timer
>> c043b380 d lapic_sysclass
>> c043b3e0 d device_lapic
>> c043b41c D wait_timer_tick
>> c043b420 D nmi_watchdog
>> c043b424 d nmi_hz
>> c043b440 d nmi_sysclass
> 
> [jstultz@elm3a16 cyclone-hpet-fix]$ nm -n vmlinux | grep -6 wait_timer_tick
> c03977e0 D mp_bus_id_to_pci_bus
> c0397860 D boot_cpu_physical_apicid
> c0397864 D boot_cpu_logical_apicid
> c0397868 D bios_cpu_apicid
> c0397870 D using_apic_timer
> c0397874 D corruption_pad1
> c0397878 D wait_timer_tick
> c039787c D corruption_pad2
> c0397880 D nmi_watchdog
> c0397884 d nmi_hz
> c0397888 d nmi_print_lock
> c03978a0 d ioapic_lock
> c03978a4 D sis_apic_bug
> 
> I can send you the whole System.map if needed, but
> mp_bus_id_to_pci_bus[] looks suspicious to me. 

Well, that looks like a reasonable aspersion to cast. Stick  MAX_MP_BUSSES
to something silly like 4096, and see what happens. Is any of it > 32
not set to -1 anymore?

M.


  reply	other threads:[~2003-09-04 14:51 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-09-04  4:29 [PATCH] linux-2.6.0-test4_cyclone-hpet-fix_A0 john stultz
2003-09-04  5:59 ` Andrew Morton
2003-09-04  7:14   ` john stultz
2003-09-04 14:48     ` Martin J. Bligh [this message]
2003-09-04 17:21 Pallipadi, Venkatesh
2003-09-04 17:53 ` john stultz
2003-09-04 18:04   ` Andrew Morton
2003-09-04 18:23 Pallipadi, Venkatesh

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