From: Frank de Lange <frank@unternet.org>
To: Andrew Morton <andrewm@uow.edu.au>
Cc: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>, linux-kernel@vger.kernel.org
Subject: Re: QUESTION: Network hangs with BP6 and 2.4.x kernels, hardware related?
Date: Fri, 12 Jan 2001 16:36:33 +0100 [thread overview]
Message-ID: <20010112163633.A22301@unternet.org> (raw)
In-Reply-To: <20010110223015.B18085@unternet.org> <3A5D9D87.8A868F6A@uow.edu.au> <20010111201819.B3269@unternet.org> <3A5E0849.EB428D70@mandrakesoft.com>, <3A5E0849.EB428D70@mandrakesoft.com>; <20010112012839.A11091@unternet.org> <3A5EED14.88D8D9AF@uow.edu.au>
In-Reply-To: <3A5EED14.88D8D9AF@uow.edu.au>; from andrewm@uow.edu.au on Fri, Jan 12, 2001 at 10:40:04PM +1100
On Fri, Jan 12, 2001 at 10:40:04PM +1100, Andrew Morton wrote:
> Here is a debugging patch. Could you please apply this,
> rebuild and:
>
> 1: Type ALT-SYSRQ-A when everything is good
> 2: Type ALT-SYSRQ-A when everything is bad
> 3: send the resulting logs.
OK, here's the results I get...
Before network hang
===================
print_PIC()
printing PIC contents
print_IO_APIC()
testing the IO APIC.......................
.................................... done.
print_all_local_APICs()
... APIC ID: 01000000 (1)
... APIC VERSION: 00040011
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000001000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000010000000000000000
... APIC ID: 00000000 (0)
... APIC VERSION: 00040011
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000010000000000000001000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000001000
NOTICE: results differ every time I hit ALT-SYSRQ-A.
The '1' bit at 'row 11, col. 26' stays '1'
no matter how many times I use the magic keys.
The other '1' bits jump around a bit, or
disappear alltogether. Also, the sequence
in which the APICs appear in the dump sometimes
differs (this example shows 1 first, then 0,
other times you'd see 0 first, then 1)
After network hang
==================
print_PIC()
printing PIC contents
print_IO_APIC()
testing the IO APIC.......................
.................................... done.
print_all_local_APICs()
... APIC ID: 00000000 (0)
... APIC VERSION: 00040011
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000010000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000010000000000000000
... APIC ID: 01000000 (1)
... APIC VERSION: 00040011
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000001000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000010000000000000000
NOTICE: hmmm... see, now that '1' bit at row 11,
col. 26 for APIC 0 which was '1' before
has turned to '0'. It will stay '0' no
matter how many times I hit the magic keys...
It seems to have been replaced by the '1'
bit at row 11, col. 10, since that bit
stays '1' no matter how many magic I
throw at it...
Hope this helps... If you need more, let me know...
Cheers//Frank
--
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next prev parent reply other threads:[~2001-01-12 15:40 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-10 21:30 QUESTION: Network hangs with BP6 and 2.4.x kernels, hardware related? Frank de Lange
2001-01-10 22:21 ` Manfred Spraul
2001-01-10 22:29 ` Frank de Lange
2001-01-10 22:40 ` Frank de Lange
2001-01-11 11:48 ` Andrew Morton
2001-01-11 15:22 ` Frank de Lange
2001-01-11 16:55 ` Frank de Lange
2001-01-11 19:18 ` Frank de Lange
[not found] ` <3A5E0849.EB428D70@mandrakesoft.com>
2001-01-12 0:28 ` Frank de Lange
2001-01-12 11:40 ` Andrew Morton
2001-01-12 15:06 ` Frank de Lange
2001-01-12 15:36 ` Frank de Lange [this message]
2001-01-11 19:38 ` Frank de Lange
2001-01-11 19:49 ` Frank de Lange
2001-01-11 21:09 ` Frank de Lange
2001-01-11 21:47 ` Jeff Garzik
2001-01-11 21:53 ` Frank de Lange
2001-01-12 14:35 ` David Woodhouse
-- strict thread matches above, loose matches on Subject: below --
2001-01-12 16:53 Manfred Spraul
2001-01-12 17:02 ` David Woodhouse
2001-01-12 17:16 Manfred Spraul
2001-01-12 17:33 ` Frank de Lange
2001-01-12 17:51 ` Manfred Spraul
2001-01-12 18:25 ` Frank de Lange
2001-01-12 19:04 ` Manfred Spraul
2001-01-12 19:07 ` Frank de Lange
2001-01-12 19:21 ` Frank de Lange
2001-01-12 19:33 ` Manfred Spraul
2001-01-12 19:52 ` Frank de Lange
2001-01-12 19:59 ` Linus Torvalds
2001-01-12 20:03 ` Ingo Molnar
2001-01-14 0:13 ` Roeland Th. Jansen
2001-01-14 0:23 ` Frank de Lange
2001-01-12 20:05 ` Frank de Lange
2001-01-12 21:21 ` Frank de Lange
[not found] <20010112165104.A22465@unternet.org>
2001-01-16 19:23 ` Maciej W. Rozycki
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