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Re: HPET regression in 2.6.26 versus 2.6.25 -- experimental revert for 2.6.27 failed

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From: David Witbrodt <dawitbro@...>
To: Yinghai Lu <yhlu.kernel@...>
Cc: <linux-kernel@...>, Paul E. McKenney <paulmck@...>, Peter Zijlstra <peterz@...>, Ingo Molnar <mingo@...>, Thomas Gleixner <tglx@...>, H. Peter Anvin <hpa@...>, netdev <netdev@...>
Subject: Re: HPET regression in 2.6.26 versus 2.6.25 -- experimental revert for 2.6.27 failed
Date: Tuesday, August 12, 2008 - 9:17 pm

Gladly.


I wasn't sure which kernel you would like me to use, so I chose a

sample of 3:


1.  linux-2.6.25 (from git) just before the commit causing the lockups

2.  linux-2.6.26 (with "hpet=disabled")

3.  Debian stock 2.6.26 ("linux-image-2.6.26-1-amd64", also with HPET

disabled)


Using 2.6.25 at the commit before the one that caused lockups:


$ cat /proc/iomem

00000000-0009f3ff : System RAM

0009f400-0009ffff : reserved

000f0000-000fffff : reserved

00100000-77fdffff : System RAM

  00200000-0056ca21 : Kernel code

  0056ca22-006ce3d7 : Kernel data

  00753000-0079a3c7 : Kernel bss

77fe0000-77fe2fff : ACPI Non-volatile Storage

77fe3000-77feffff : ACPI Tables

77ff0000-77ffffff : reserved

78000000-7fffffff : pnp 00:0d

d8000000-dfffffff : PCI Bus #01

  d8000000-dfffffff : 0000:01:05.0

    d8000000-d8ffffff : uvesafb

e0000000-efffffff : PCI MMCONFIG 0

  e0000000-efffffff : reserved

fdc00000-fdcfffff : PCI Bus #02

  fdcff000-fdcff0ff : 0000:02:05.0

    fdcff000-fdcff0ff : r8169

fdd00000-fdefffff : PCI Bus #01

  fdd00000-fddfffff : 0000:01:05.0

  fdee0000-fdeeffff : 0000:01:05.0

  fdefc000-fdefffff : 0000:01:05.2

    fdefc000-fdefffff : ICH HD audio

fdf00000-fdffffff : PCI Bus #02

fe020000-fe023fff : 0000:00:14.2

  fe020000-fe023fff : ICH HD audio

fe029000-fe0290ff : 0000:00:13.5

  fe029000-fe0290ff : ehci_hcd

fe02a000-fe02afff : 0000:00:13.4

  fe02a000-fe02afff : ohci_hcd

fe02b000-fe02bfff : 0000:00:13.3

  fe02b000-fe02bfff : ohci_hcd

fe02c000-fe02cfff : 0000:00:13.2

  fe02c000-fe02cfff : ohci_hcd

fe02d000-fe02dfff : 0000:00:13.1

  fe02d000-fe02dfff : ohci_hcd

fe02e000-fe02efff : 0000:00:13.0

  fe02e000-fe02efff : ohci_hcd

fe02f000-fe02f3ff : 0000:00:12.0

  fe02f000-fe02f3ff : ahci

fec00000-fec00fff : IOAPIC 0

  fec00000-fec00fff : pnp 00:0d

fed00000-fed003ff : HPET 0

  fed00000-fed003ff : 0000:00:14.0

fee00000-fee00fff : Local APIC

fff80000-fffeffff : pnp 00:0d

ffff0000-ffffffff : pnp 00:0d


Using 2.6.26 (custom compiled) with "hpet=disabled"


00000000...
[ message continues ]
[view original message]
From: Yinghai Lu <yhlu.kernel@...>
To: David Witbrodt <dawitbro@...>, Ingo Molnar <mingo@...>
Cc: <linux-kernel@...>, Paul E. McKenney <paulmck@...>, Peter Zijlstra <peterz@...>, Thomas Gleixner <tglx@...>, H. Peter Anvin <hpa@...>, netdev <netdev@...>
Subject: Re: HPET regression in 2.6.26 versus 2.6.25 -- experimental revert for 2.6.27 failed
Date: Tuesday, August 12, 2008 - 11:40 pm

please try attached patch with 2.6.27-rc3


Thanks


Yinghai Lu
Previous thread: [PATCH] kexec jump: fix code size checking by Huang Ying on Tuesday, August 12, 2008 - 9:04 pm. (10 messages)

Next thread: AGP aperture beyond 4GB not valid? by Chris Adams on Tuesday, August 12, 2008 - 9:32 pm. (3 messages)