Re: QUESTION: Network hangs with BP6 and 2.4.x kernels, hardware related?

From: Frank de Lange (frank@unternet.org)
Date: Fri Jan 12 2001 - 10:36:33 EST

Next message: Martin Josefsson: "Re: Linux booting from HD on Promise Ultra ATA 100"
Previous message: Alan Cox: "Linux 2.4.0-ac8"
In reply to: Andrew Morton: "Re: QUESTION: Network hangs with BP6 and 2.4.x kernels, hardware related?"
Next in thread: Frank de Lange: "Re: QUESTION: Network hangs with BP6 and 2.4.x kernels, hardware related?"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

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

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

-- 
  WWWWW      _______________________
 ## o o\    /     Frank de Lange     \
 }#   \|   /                          \
  ##---# _/     <Hacker for Hire>      \
   ####   \      +31-320-252965        /
           \    frank@unternet.org    /
            -------------------------
 [ "Omnis enim res, quae dando non deficit, dum habetur
    et non datur, nondum habetur, quomodo habenda est."  ]
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

Next message: Martin Josefsson: "Re: Linux booting from HD on Promise Ultra ATA 100"
Previous message: Alan Cox: "Linux 2.4.0-ac8"
In reply to: Andrew Morton: "Re: QUESTION: Network hangs with BP6 and 2.4.x kernels, hardware related?"
Next in thread: Frank de Lange: "Re: QUESTION: Network hangs with BP6 and 2.4.x kernels, hardware related?"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

This archive was generated by hypermail 2b29 : Mon Jan 15 2001 - 21:00:34 EST