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Date: Tue, 12 Aug 2008 18:17:15 -0700 (PDT)
From: David Witbrodt <dawitbro@...global.net>
To: Yinghai Lu <yhlu.kernel@...il.com>
Cc: linux-kernel@...r.kernel.org,
"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...e.hu>,
Thomas Gleixner <tglx@...utronix.de>,
"H. Peter Anvin" <hpa@...or.com>, netdev <netdev@...r.kernel.org>
Subject: Re: HPET regression in 2.6.26 versus 2.6.25 -- experimental revert for 2.6.27 failed
> can you post /proc/iomem?
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"
00000000-0009f3ff : System RAM
0009f400-0009ffff : reserved
000f0000-000fffff : reserved
00100000-77fdffff : System RAM
00200000-0057358d : Kernel code
0057358e-006d8e9f : Kernel data
0076e000-007b7447 : Kernel bss
77fe0000-77fe2fff : ACPI Non-volatile Storage
77fe3000-77feffff : ACPI Tables
77ff0000-77ffffff : reserved
78000000-7fffffff : pnp 00:0d
80000000-800003ff : 0000:00:14.0
d8000000-dfffffff : PCI Bus 0000:01
d8000000-dfffffff : 0000:01:05.0
d8000000-d8ffffff : uvesafb
e0000000-efffffff : PCI MMCONFIG 0
e0000000-efffffff : reserved
fdc00000-fdcfffff : PCI Bus 0000:02
fdcff000-fdcff0ff : 0000:02:05.0
fdcff000-fdcff0ff : r8169
fdd00000-fdefffff : PCI Bus 0000:01
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 0000:02
fdf00000-fdf1ffff : 0000:02:05.0
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-ffffffff : reserved
fec00000-fec00fff : IOAPIC 0
fed00000-fed003ff : HPET 0
fee00000-fee00fff : Local APIC
Using Debian stock kernel
00000000-0009f3ff : System RAM
0009f400-0009ffff : reserved
000f0000-000fffff : reserved
00100000-77fdffff : System RAM
00200000-0042c443 : Kernel code
0042c444-0053a677 : Kernel data
005de000-00673317 : Kernel bss
77fe0000-77fe2fff : ACPI Non-volatile Storage
77fe3000-77feffff : ACPI Tables
77ff0000-77ffffff : reserved
78000000-7fffffff : pnp 00:0d
80000000-800003ff : 0000:00:14.0
d8000000-dfffffff : PCI Bus 0000:01
d8000000-dfffffff : 0000:01:05.0
e0000000-efffffff : PCI MMCONFIG 0
e0000000-efffffff : reserved
fdc00000-fdcfffff : PCI Bus 0000:02
fdcff000-fdcff0ff : 0000:02:05.0
fdcff000-fdcff0ff : r8169
fdd00000-fdefffff : PCI Bus 0000:01
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 0000:02
fdf00000-fdf1ffff : 0000:02:05.0
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-ffffffff : reserved
fec00000-fec00fff : IOAPIC 0
fed00000-fed003ff : HPET 0
fee00000-fee00fff : Local APIC
Please let me know anything else I can provide, and which kernels you
would like me to run to provide it.
Dave W.
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