* Re: [Bug 16415] New: Show_Memory/Shift-ScrollLock triggers "unable to handle kernel paging request at 00021c6e"
[not found] <bug-16415-27@https.bugzilla.kernel.org/>
@ 2010-07-22 22:34 ` Andrew Morton
2010-07-22 22:37 ` Andrew Morton
2010-07-27 12:54 ` Mel Gorman
0 siblings, 2 replies; 6+ messages in thread
From: Andrew Morton @ 2010-07-22 22:34 UTC (permalink / raw)
To: linux-mm; +Cc: bugzilla-daemon, Johannes Weiner, Mel Gorman, tnimble
(switched to email. Please respond via emailed reply-to-all, not via the
bugzilla web interface).
Thanks for the report.
On Mon, 19 Jul 2010 11:18:46 GMT
bugzilla-daemon@bugzilla.kernel.org wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=16415
>
> Summary: Show_Memory/Shift-ScrollLock triggers "unable to
> handle kernel paging request at 00021c6e"
> Product: Memory Management
> Version: 2.5
> Kernel Version: 2.6.34.1
> Platform: All
> OS/Version: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: Other
> AssignedTo: akpm@linux-foundation.org
> ReportedBy: tnimble@xs4all.nl
> Regression: No
>
>
> Created an attachment (id=27147)
> --> (https://bugzilla.kernel.org/attachment.cgi?id=27147)
> Kernel startup output
>
> When doing a show_memory the following trace is outputted and the box freezes.
> A reboot is then initiated by the wachtdog timer after about a minute.
>
> The show_registers (altr-scrollock) functions just fine.
>
> This problem might be related to other memory related issues. This as when
> cached memory usage increases of when a large file is allocated on a tmpfs the
> system also freezes after pagefaults / panics
>
> This problem was first noticed after updating to kernel 2.6.34 (from 2.6.12.6).
> Both kernels have been tested on multiple sets of hardware. The system is run
> from compact flash disk and tmpfs for /tmp and /var/...
>
It's i386, highmem.
>
> BUG: unable to handle kernel paging request at 00021c6e
> IP: [<c01d124b>] show_mem+0xbf/0x15c
> *pde = 00000000
> Oops: 0000 [#1] SMP
> last sysfs file: /sys/devices/platform/coretemp.0/temp1_input
> Modules linked in: ipv6 nf_nat_irc nf_nat_ftp ipt_MASQUERADE ipt_REJECT
> ipt_REDIRECT xt_state xt_limit ipt_LOG iptable_nat nf_nat iptable_mangle
> iptable_filter nf_conntrack_irc nf_conntrack_ftp nf_conntrack_ipv4 nf_conntrack
> nf_defrag_ipv4 ip_tables x_tables coretemp usbhid i2c_i801 ehci_hcd uhci_hcd
> fan iTCO_wdt iTCO_vendor_support e1000e usbcore thermal button processor evdev
> nls_iso8859_1
>
> Pid: 0, comm: swapper Not tainted 2.6.34.1 #1 945GM/E-ITE8712/945GM/E-ITE8712
> EIP: 0060:[<c01d124b>] EFLAGS: 00010002 CPU: 0
> EIP is at show_mem+0xbf/0x15c
> EAX: 00021c6a EBX: 00018020 ECX: 00000001 EDX: c1301400
> ESI: 00018010 EDI: c03fbf80 EBP: c03d5ca0 ESP: c03d5c80
> DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
> Process swapper (pid: 0, ti=c03d4000 task=c03e2ea0 task.ti=c03d4000)
> Stack:
> 00018010 0000147a ed0ff381 00000000 00000000 f700b000 00000046 c03ef203
> <0> c03d5ca8 c022a4dd c03d5cb4 c0229a0c 00000002 c03d5ce8 c022ae51 f694cc00
> <0> 020030b4 f700b000 f700b000 00000001 00000001 00000000 0000f203 f64a7d40
> Call Trace:
> [<c022a4dd>] ? fn_show_mem+0x8/0xa
> [<c0229a0c>] ? k_spec+0x33/0x36
> [<c022ae51>] ? kbd_event+0x46f/0x4da
> [<c027891f>] ? input_pass_event+0x63/0x9e
> [<c012df0e>] ? mod_timer+0xe7/0xf2
Here it is:
: void show_mem(void)
: {
: pg_data_t *pgdat;
: unsigned long total = 0, reserved = 0, shared = 0,
: nonshared = 0, highmem = 0;
:
: printk("Mem-Info:\n");
: show_free_areas();
:
: for_each_online_pgdat(pgdat) {
: unsigned long i, flags;
:
: pgdat_resize_lock(pgdat, &flags);
: for (i = 0; i < pgdat->node_spanned_pages; i++) {
: struct page *page;
: unsigned long pfn = pgdat->node_start_pfn + i;
:
: if (unlikely(!(i % MAX_ORDER_NR_PAGES)))
: touch_nmi_watchdog();
:
: if (!pfn_valid(pfn))
: continue;
:
: page = pfn_to_page(pfn);
:
: if (PageHighMem(page))
: highmem++;
:
: if (PageReserved(page))
: reserved++;
: else if (page_count(page) == 1)
: nonshared++;
: else if (page_count(page) > 1)
: shared += page_count(page) - 1;
:
: total++;
: }
: pgdat_resize_unlock(pgdat, &flags);
: }
afaict what happened was that the PageReserved() test survived somehow.
Then the page_count() test internally decided that it was a PageTail()
page, then got itself a new page* and then tried to read that pointer's
->count field, and oopsed.
So probably that pfn_to_page() expression returned us some garbage
which doesn't refer to a pageframe at all.
I attempted to cc people who work on these things.
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Bug 16415] New: Show_Memory/Shift-ScrollLock triggers "unable to handle kernel paging request at 00021c6e"
2010-07-22 22:34 ` [Bug 16415] New: Show_Memory/Shift-ScrollLock triggers "unable to handle kernel paging request at 00021c6e" Andrew Morton
@ 2010-07-22 22:37 ` Andrew Morton
2010-07-27 12:54 ` Mel Gorman
1 sibling, 0 replies; 6+ messages in thread
From: Andrew Morton @ 2010-07-22 22:37 UTC (permalink / raw)
To: linux-mm, bugzilla-daemon, Johannes Weiner, Mel Gorman, tnimble
On Thu, 22 Jul 2010 15:34:43 -0700
Andrew Morton <akpm@linux-foundation.org> wrote:
> > https://bugzilla.kernel.org/show_bug.cgi?id=16415
See also https://bugzilla.kernel.org/show_bug.cgi?id=16416
--
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Bug 16415] New: Show_Memory/Shift-ScrollLock triggers "unable to handle kernel paging request at 00021c6e"
2010-07-22 22:34 ` [Bug 16415] New: Show_Memory/Shift-ScrollLock triggers "unable to handle kernel paging request at 00021c6e" Andrew Morton
2010-07-22 22:37 ` Andrew Morton
@ 2010-07-27 12:54 ` Mel Gorman
2010-07-28 12:31 ` The Nimble Byte
1 sibling, 1 reply; 6+ messages in thread
From: Mel Gorman @ 2010-07-27 12:54 UTC (permalink / raw)
To: Andrew Morton
Cc: linux-mm, bugzilla-daemon, Johannes Weiner, tnimble,
Rafael J. Wysocki, Ingo Molnar, Yinghai Lu
On Thu, Jul 22, 2010 at 03:34:43PM -0700, Andrew Morton wrote:
> > This problem was first noticed after updating to kernel 2.6.34 (from 2.6.12.6).
> > Both kernels have been tested on multiple sets of hardware. The system is run
> > from compact flash disk and tmpfs for /tmp and /var/...
> >
>
> It's i386, highmem.
>
tmpfs is a common element between both bugs but not sure if that is
relevant yet.
> > BUG: unable to handle kernel paging request at 00021c6e
> > IP: [<c01d124b>] show_mem+0xbf/0x15c
> > *pde = 00000000
> > Oops: 0000 [#1] SMP
> > last sysfs file: /sys/devices/platform/coretemp.0/temp1_input
> > Modules linked in: ipv6 nf_nat_irc nf_nat_ftp ipt_MASQUERADE ipt_REJECT
> > ipt_REDIRECT xt_state xt_limit ipt_LOG iptable_nat nf_nat iptable_mangle
> > iptable_filter nf_conntrack_irc nf_conntrack_ftp nf_conntrack_ipv4 nf_conntrack
> > nf_defrag_ipv4 ip_tables x_tables coretemp usbhid i2c_i801 ehci_hcd uhci_hcd
> > fan iTCO_wdt iTCO_vendor_support e1000e usbcore thermal button processor evdev
> > nls_iso8859_1
> >
> > Pid: 0, comm: swapper Not tainted 2.6.34.1 #1 945GM/E-ITE8712/945GM/E-ITE8712
> > EIP: 0060:[<c01d124b>] EFLAGS: 00010002 CPU: 0
> > EIP is at show_mem+0xbf/0x15c
> > EAX: 00021c6a EBX: 00018020 ECX: 00000001 EDX: c1301400
> > ESI: 00018010 EDI: c03fbf80 EBP: c03d5ca0 ESP: c03d5c80
> > DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
> > Process swapper (pid: 0, ti=c03d4000 task=c03e2ea0 task.ti=c03d4000)
> > Stack:
> > 00018010 0000147a ed0ff381 00000000 00000000 f700b000 00000046 c03ef203
> > <0> c03d5ca8 c022a4dd c03d5cb4 c0229a0c 00000002 c03d5ce8 c022ae51 f694cc00
> > <0> 020030b4 f700b000 f700b000 00000001 00000001 00000000 0000f203 f64a7d40
> > Call Trace:
> > [<c022a4dd>] ? fn_show_mem+0x8/0xa
> > [<c0229a0c>] ? k_spec+0x33/0x36
> > [<c022ae51>] ? kbd_event+0x46f/0x4da
> > [<c027891f>] ? input_pass_event+0x63/0x9e
> > [<c012df0e>] ? mod_timer+0xe7/0xf2
>
> Here it is:
>
> : void show_mem(void)
> : {
> : pg_data_t *pgdat;
> : unsigned long total = 0, reserved = 0, shared = 0,
> : nonshared = 0, highmem = 0;
> :
> : printk("Mem-Info:\n");
> : show_free_areas();
> :
> : for_each_online_pgdat(pgdat) {
> : unsigned long i, flags;
> :
> : pgdat_resize_lock(pgdat, &flags);
> : for (i = 0; i < pgdat->node_spanned_pages; i++) {
> : struct page *page;
> : unsigned long pfn = pgdat->node_start_pfn + i;
> :
> : if (unlikely(!(i % MAX_ORDER_NR_PAGES)))
> : touch_nmi_watchdog();
> :
> : if (!pfn_valid(pfn))
> : continue;
> :
> : page = pfn_to_page(pfn);
> :
> : if (PageHighMem(page))
> : highmem++;
> :
> : if (PageReserved(page))
> : reserved++;
> : else if (page_count(page) == 1)
> : nonshared++;
> : else if (page_count(page) > 1)
> : shared += page_count(page) - 1;
> :
> : total++;
> : }
> : pgdat_resize_unlock(pgdat, &flags);
> : }
>
> afaict what happened was that the PageReserved() test survived somehow.
> Then the page_count() test internally decided that it was a PageTail()
> page, then got itself a new page* and then tried to read that pointer's
> ->count field, and oopsed.
>
> So probably that pfn_to_page() expression returned us some garbage
> which doesn't refer to a pageframe at all.
>
> I attempted to cc people who work on these things.
>
I was unable to reproduce this on qemu at least (my test machines are
all occupied). Test case was to force use of highmem (vmalloc=) and
mount tmpfs with a swapfile in place. A heavy mix off dd writing to
on-disk and tmpfs-files over the course of 15 minutes triggered nothing
out of the ordinary. So, whatever is going on here, it's not immediately
obvious and so I'm afraid I have to make wild stabs in the dark.
Relevant people cc'd.
Theory 1
--------
Can we eliminate bad hardware as an option? What modules are loaded in this
machine (lsmod and lspci -v)? Can memtest be run on this machine for a number
of hours to eliminate bad memory as a possibility? I recognise that 2.6.12.6
was fine on this machine but it's possible that 2.6.34.1 is stressing the
machine more for some reason.
Theory 2
--------
To catch early mistakes in the memory model, can the machine be booted with
mminit_loglevel=4 and CONFIG_DEBUG_VM set in .config? I am not optimistic
this is where the problem is though. If we were making mistakes in early
setup, I'd expect a large volume of bug reports on it.
Theory 3
--------
I see this message early in boot
Phoenix BIOS detected: BIOS may corrupt low RAM, working around it.
Is there any possibility that the wrong range of memory is being reserved
and in fact the BIOS is screwing with the region of memory memmap is stored in?
Theory 4
--------
with the early boot changes, is there any possibility that bootmem used the
low 64K? To test the theory, can the kernel be rebuilt with CONFIG_NO_BOOTMEM
*not* set to use the older bootmem logic?
Theory 5
--------
What are the consequences of the following message?
pcieport 0000:00:1c.0: Requesting control of PCIe PME from ACPI BIOS
pcieport 0000:00:1c.0: Failed to receive control of PCIe PME service: no _OSC support
pcie_pme: probe of 0000:00:1c.0:pcie01 failed with error -13
pcieport 0000:00:1c.1: Requesting control of PCIe PME from ACPI BIOS
pcieport 0000:00:1c.1: Failed to receive control of PCIe PME service: no _OSC support
pcie_pme: probe of 0000:00:1c.1:pcie01 failed with error -13
pcieport 0000:00:1c.2: Requesting control of PCIe PME from ACPI BIOS
pcieport 0000:00:1c.2: Failed to receive control of PCIe PME service: no _OSC support
pcie_pme: probe of 0000:00:1c.2:pcie01 failed with error -13
pcieport 0000:00:1c.3: Requesting control of PCIe PME from ACPI BIOS
pcieport 0000:00:1c.3: Failed to receive control of PCIe PME service: no _OSC support
pcie_pme: probe of 0000:00:1c.3:pcie01 failed with error -13
Is there any possibility when this fails that the device is writing to
some location in memory thinking the OS has taken proper control of it
and reserved those physicaly address? (reaching I know, but have to
eliminate it as a possibility)
Sorry to spread the possibilities all over the place but without a local
reproduction case, there isn't much to go on yet.
--
Mel Gorman
Part-time Phd Student Linux Technology Center
University of Limerick IBM Dublin Software Lab
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Bug 16415] New: Show_Memory/Shift-ScrollLock triggers "unable to handle kernel paging request at 00021c6e"
2010-07-27 12:54 ` Mel Gorman
@ 2010-07-28 12:31 ` The Nimble Byte
2010-07-28 15:50 ` Mel Gorman
0 siblings, 1 reply; 6+ messages in thread
From: The Nimble Byte @ 2010-07-28 12:31 UTC (permalink / raw)
To: Mel Gorman
Cc: Andrew Morton, linux-mm, bugzilla-daemon, Johannes Weiner,
Rafael J. Wysocki, Ingo Molnar, Yinghai Lu
On 27/07/2010 14:54, Mel Gorman wrote
> BUG: unable to handle kernel paging request at 00021c6e
>
> I was unable to reproduce this on qemu at least (my test machines are
> all occupied). Test case was to force use of highmem (vmalloc=) and
> mount tmpfs with a swapfile in place. A heavy mix off dd writing to
> on-disk and tmpfs-files over the course of 15 minutes triggered nothing
> out of the ordinary. So, whatever is going on here, it's not immediately
> obvious and so I'm afraid I have to make wild stabs in the dark.
> Relevant people cc'd.
This bug (activating show_mem) can be reproduced without the dd on
tmpfs. From a initial ramdisk containing only a shell, some libraries
and the following init script:
: #!/bin/sh
: echo Loading....
: sleep 60
Pressing shift+scroll lock during the sleep generates an oops at the
beginning of the show_mem function also. The issue does thereby not seem
to be related to any of the kernel code compiled as modules. It pretty
much rules out tmpfs itself.
> Theory 1
> --------
> Can we eliminate bad hardware as an option? What modules are loaded in this
> machine (lsmod and lspci -v)? Can memtest be run on this machine for a number
> of hours to eliminate bad memory as a possibility? I recognise that 2.6.12.6
> was fine on this machine but it's possible that 2.6.34.1 is stressing the
> machine more for some reason.
The kernel has been run on multiple hardware (similar (not fully
identical) type though) and memtest86+ has been run for several hours
without any trouble.
$ lspci -v
:00:00.0 Class 0600: 8086:27ac (rev 03)
: Subsystem: 8086:27ac
: Flags: bus master, fast devsel, latency 0
: Capabilities: [e0] #09 [5109]
:
:00:02.0 Class 0300: 8086:27ae (rev 03)
: Subsystem: 8086:27ae
: Flags: bus master, fast devsel, latency 0, IRQ 16
: Memory at fdf00000 (32-bit, non-prefetchable) [size=512K]
: I/O ports at ff00 [size=8]
: Memory at d0000000 (32-bit, prefetchable) [size=256M]
: Memory at fdf80000 (32-bit, non-prefetchable) [size=256K]
: Expansion ROM at <unassigned> [disabled]
: Capabilities: [90] Message Signalled Interrupts: 64bit- Queue=0/0
Enable-
: Capabilities: [d0] Power Management version 2
:
:00:1b.0 Class 0403: 8086:27d8 (rev 02)
: Subsystem: 8086:27d8
: Flags: bus master, fast devsel, latency 0, IRQ 32
: Memory at fdff8000 (64-bit, non-prefetchable) [size=16K]
: Capabilities: [50] Power Management version 2
: Capabilities: [60] Message Signalled Interrupts: 64bit+ Queue=0/0
Enable+
: Capabilities: [70] #10 [0091]
:
:00:1c.0 Class 0604: 8086:27d0 (rev 02)
: Flags: bus master, fast devsel, latency 0
: Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
: I/O behind bridge: 0000b000-0000bfff
: Memory behind bridge: fd800000-fd8fffff
: Prefetchable memory behind bridge: 00000000fd500000-00000000fd500000
: Capabilities: [40] #10 [0141]
: Capabilities: [80] Message Signalled Interrupts: 64bit- Queue=0/0
Enable+
: Capabilities: [90] #0d [0000]
: Capabilities: [a0] Power Management version 2
:
:00:1c.1 Class 0604: 8086:27d2 (rev 02)
: Flags: bus master, fast devsel, latency 0
: Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
: I/O behind bridge: 0000a000-0000afff
: Memory behind bridge: fde00000-fdefffff
: Prefetchable memory behind bridge: 00000000fdd00000-00000000fdd00000
: Capabilities: [40] #10 [0141]
: Capabilities: [80] Message Signalled Interrupts: 64bit- Queue=0/0
Enable+
: Capabilities: [90] #0d [0000]
: Capabilities: [a0] Power Management version 2
:
:00:1c.2 Class 0604: 8086:27d4 (rev 02)
: Flags: bus master, fast devsel, latency 0
: Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
: I/O behind bridge: 0000e000-0000efff
: Memory behind bridge: fdc00000-fdcfffff
: Prefetchable memory behind bridge: 00000000fdb00000-00000000fdb00000
: Capabilities: [40] #10 [0141]
: Capabilities: [80] Message Signalled Interrupts: 64bit- Queue=0/0
Enable+
: Capabilities: [90] #0d [0000]
: Capabilities: [a0] Power Management version 2
:
:00:1c.3 Class 0604: 8086:27d6 (rev 02)
: Flags: bus master, fast devsel, latency 0
: Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
: I/O behind bridge: 0000d000-0000dfff
: Memory behind bridge: fda00000-fdafffff
: Prefetchable memory behind bridge: 00000000fd900000-00000000fd900000
: Capabilities: [40] #10 [0141]
: Capabilities: [80] Message Signalled Interrupts: 64bit- Queue=0/0
Enable+
: Capabilities: [90] #0d [0000]
: Capabilities: [a0] Power Management version 2
:
:00:1d.0 Class 0c03: 8086:27c8 (rev 02)
: Subsystem: 8086:27c8
: Flags: bus master, medium devsel, latency 0, IRQ 23
: I/O ports at fe00 [size=32]
:
:00:1d.1 Class 0c03: 8086:27c9 (rev 02)
: Subsystem: 8086:27c9
: Flags: bus master, medium devsel, latency 0, IRQ 19
: I/O ports at fd00 [size=32]
:
:00:1d.2 Class 0c03: 8086:27ca (rev 02)
: Subsystem: 8086:27ca
: Flags: bus master, medium devsel, latency 0, IRQ 18
: I/O ports at fc00 [size=32]
:
:00:1d.3 Class 0c03: 8086:27cb (rev 02)
: Subsystem: 8086:27cb
: Flags: bus master, medium devsel, latency 0, IRQ 16
: I/O ports at fb00 [size=32]
:
:00:1d.7 Class 0c03: 8086:27cc (rev 02) (prog-if 20)
: Subsystem: 8086:27cc
: Flags: bus master, medium devsel, latency 0, IRQ 23
: Memory at fdfff000 (32-bit, non-prefetchable) [size=1K]
: Capabilities: [50] Power Management version 2
: Capabilities: [58] #0a [20a0]
:
:00:1e.0 Class 0604: 8086:2448 (rev e2) (prog-if 01)
: Flags: bus master, fast devsel, latency 0
: Bus: primary=00, secondary=05, subordinate=05, sec-latency=32
: I/O behind bridge: 0000c000-0000cfff
: Memory behind bridge: fd700000-fd7fffff
: Prefetchable memory behind bridge: 00000000fd600000-00000000fd600000
: Capabilities: [50] #0d [0000]
:
:00:1f.0 Class 0601: 8086:27b9 (rev 02)
: Subsystem: 8086:27b9
: Flags: bus master, medium devsel, latency 0
: Capabilities: [e0] #09 [100c]
:
:00:1f.1 Class 0101: 8086:27df (rev 02) (prog-if 8a [Master SecP PriP])
: Subsystem: 8086:27df
: Flags: bus master, medium devsel, latency 0, IRQ 18
: I/O ports at 01f0 [size=8]
: I/O ports at 03f4
: I/O ports at 0170 [size=8]
: I/O ports at 0374
: I/O ports at fa00 [size=16]
:
:00:1f.2 Class 0101: 8086:27c4 (rev 02) (prog-if 8f [Master SecP SecO
PriP PriO])
: Subsystem: 8086:27c4
: Flags: bus master, 66Mhz, medium devsel, latency 0, IRQ 19
: I/O ports at f900 [size=8]
: I/O ports at f800 [size=4]
: I/O ports at f700 [size=8]
: I/O ports at f600 [size=4]
: I/O ports at f500 [size=16]
: Memory at fdffe000 (32-bit, non-prefetchable) [size=1K]
: Capabilities: [70] Power Management version 2
:
:00:1f.3 Class 0c05: 8086:27da (rev 02)
: Subsystem: 8086:27da
: Flags: medium devsel, IRQ 19
: I/O ports at 0500 [size=32]
:
:01:00.0 Class 0200: 8086:109a
: Subsystem: 8086:0000
: Flags: bus master, fast devsel, latency 0, IRQ 28
: Memory at fd8e0000 (32-bit, non-prefetchable) [size=128K]
: I/O ports at bf00 [size=32]
: Capabilities: [c8] Power Management version 2
: Capabilities: [d0] Message Signalled Interrupts: 64bit+ Queue=0/0
Enable+
: Capabilities: [e0] #10 [0001]
:
:02:00.0 Class 0200: 8086:109a
: Subsystem: 8086:0000
: Flags: bus master, fast devsel, latency 0, IRQ 29
: Memory at fdee0000 (32-bit, non-prefetchable) [size=128K]
: I/O ports at af00 [size=32]
: Capabilities: [c8] Power Management version 2
: Capabilities: [d0] Message Signalled Interrupts: 64bit+ Queue=0/0
Enable+
: Capabilities: [e0] #10 [0001]
:
:03:00.0 Class 0200: 8086:109a
: Subsystem: 8086:0000
: Flags: bus master, fast devsel, latency 0, IRQ 30
: Memory at fdce0000 (32-bit, non-prefetchable) [size=128K]
: I/O ports at ef00 [size=32]
: Capabilities: [c8] Power Management version 2
: Capabilities: [d0] Message Signalled Interrupts: 64bit+ Queue=0/0
Enable+
: Capabilities: [e0] #10 [0001]
:
:04:00.0 Class 0200: 8086:109a
: Subsystem: 8086:0000
: Flags: bus master, fast devsel, latency 0, IRQ 31
: Memory at fdae0000 (32-bit, non-prefetchable) [size=128K]
: I/O ports at df00 [size=32]
: Capabilities: [c8] Power Management version 2
: Capabilities: [d0] Message Signalled Interrupts: 64bit+ Queue=0/0
Enable+
: Capabilities: [e0] #10 [0001]
$ lsmod
:Module Size Used by
:nf_nat_irc 950 0
:nf_nat_ftp 1136 0
:ipt_MASQUERADE 1200 0
:ipt_REJECT 1546 0
:ipt_REDIRECT 777 0
:xt_state 894 2
:xt_limit 1097 0
:ipt_LOG 3840 0
:iptable_nat 2876 1
:nf_nat 12966 5
nf_nat_irc,nf_nat_ftp,ipt_MASQUERADE,ipt_REDIRECT,iptable_nat
:iptable_mangle 1115 0
:iptable_filter 1114 1
:nf_conntrack_irc 3095 1 nf_nat_irc
:nf_conntrack_ftp 4557 1 nf_nat_ftp
:nf_conntrack_ipv4 8740 5 iptable_nat,nf_nat
:nf_conntrack 49060 9
nf_nat_irc,nf_nat_ftp,ipt_MASQUERADE,xt_state,iptable_nat,nf_nat,nf_conntrack_irc,nf_conntrack_ftp,nf_conntrack_ipv4
:nf_defrag_ipv4 853 1 nf_conntrack_ipv4
:ip_tables 8425 3 iptable_nat,iptable_mangle,iptable_filter
:coretemp 3806 0
:snd_hda_codec_via 41668 1
:snd_hda_intel 17946 0
:snd_hda_codec 55665 2 snd_hda_codec_via,snd_hda_intel
:ehci_hcd 39532 0
:uhci_hcd 23218 0
:iTCO_wdt 8739 0
:snd_hwdep 4121 1 snd_hda_codec
:snd_pcm 55679 2 snd_hda_intel,snd_hda_codec
:snd_timer 14219 1 snd_pcm
:usbcore 122021 3 ehci_hcd,uhci_hcd
:e1000e 102961 0
:snd 40194 6
snd_hda_codec_via,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer
:soundcore 4734 1 snd
:snd_page_alloc 5755 2 snd_hda_intel,snd_pcm
:reiserfs 170135 0
> Theory 2
> --------
> To catch early mistakes in the memory model, can the machine be booted with
> mminit_loglevel=4 and CONFIG_DEBUG_VM set in .config? I am not optimistic
> this is where the problem is though. If we were making mistakes in early
> setup, I'd expect a large volume of bug reports on it.
>
[ 0.000000] Linux version 2.6.34.1
(root@doeblin.development.xafax.nl) (gcc version 4.2.4) #26 SMP Wed Jul
28 13:24:34 CEST 2010
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
[ 0.000000] BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
[ 0.000000] BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
[ 0.000000] BIOS-e820: 0000000000100000 - 000000007f690000 (usable)
[ 0.000000] BIOS-e820: 000000007f690000 - 000000007f6e0000 (reserved)
[ 0.000000] BIOS-e820: 000000007f6e0000 - 000000007f6e3000 (ACPI NVS)
[ 0.000000] BIOS-e820: 000000007f6e3000 - 000000007f6f0000 (ACPI data)
[ 0.000000] BIOS-e820: 000000007f6f0000 - 000000007f700000 (reserved)
[ 0.000000] BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
[ 0.000000] BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] DMI 2.2 present.
[ 0.000000] Phoenix BIOS detected: BIOS may corrupt low RAM, working
around it.
[ 0.000000] last_pfn = 0x7f690 max_arch_pfn = 0x1000000
[ 0.000000] PAT not supported by CPU.
[ 0.000000] found SMP MP-table at [c00f38d0] f38d0
[ 0.000000] init_memory_mapping: 0000000000000000-0000000037bfe000
[ 0.000000] RAMDISK: 37d29000 - 37ff0000
[ 0.000000] Allocated new RAMDISK: 00493000 - 007596bb
[ 0.000000] Move RAMDISK from 0000000037d29000 - 0000000037fef6ba to
00493000 - 007596ba
[ 0.000000] ACPI: RSDP 000f7c90 00014 (v00 IntelR)
[ 0.000000] ACPI: RSDT 7f6e3000 00034 (v01 IntelR AWRDACPI 42302E31
AWRD 00000000)
[ 0.000000] ACPI: FACP 7f6e3080 00074 (v01 IntelR AWRDACPI 42302E31
AWRD 00000000)
[ 0.000000] ACPI: DSDT 7f6e3100 05122 (v01 INTELR AWRDACPI 00001000
MSFT 03000000)
[ 0.000000] ACPI: FACS 7f6e0000 00040
[ 0.000000] ACPI: IDTS 7f6e82c0 00028 (v01 IntelR AWRDACPI 42302E31
AWRD 00000000)
[ 0.000000] ACPI: MCFG 7f6e8300 0003C (v01 IntelR AWRDACPI 42302E31
AWRD 00000000)
[ 0.000000] ACPI: APIC 7f6e8240 00068 (v01 IntelR AWRDACPI 42302E31
AWRD 00000000)
[ 0.000000] mminit::memory_register Entering add_active_range(0,
0x10, 0x9f) 0 entries of 256 used
[ 0.000000] mminit::memory_register Entering add_active_range(0,
0x100, 0x7f690) 1 entries of 256 used
[ 0.000000] 1146MB HIGHMEM available.
[ 0.000000] 891MB LOWMEM available.
[ 0.000000] mapped low ram: 0 - 37bfe000
[ 0.000000] low ram: 0 - 37bfe000
[ 0.000000] Zone PFN ranges:
[ 0.000000] DMA 0x00000010 -> 0x00001000
[ 0.000000] Normal 0x00001000 -> 0x00037bfe
[ 0.000000] HighMem 0x00037bfe -> 0x0007f690
[ 0.000000] Movable zone start PFN for each node
[ 0.000000] early_node_map[2] active PFN ranges
[ 0.000000] 0: 0x00000010 -> 0x0000009f
[ 0.000000] 0: 0x00000100 -> 0x0007f690
[ 0.000000] mminit::pageflags_layout_widths Section 0 Node 0 Zone 2
Flags 24
[ 0.000000] mminit::pageflags_layout_shifts Section 0 Node 0 Zone 2
[ 0.000000] mminit::pageflags_layout_offsets Section 0 Node 0 Zone 30
[ 0.000000] mminit::pageflags_layout_zoneid Zone ID: 30 -> 32
[ 0.000000] mminit::pageflags_layout_usage location: 32 -> 30 unused
30 -> 24 flags 24 -> 0
[ 0.000000] mminit::memmap_init Initialising map node 0 zone 0 pfns
16 -> 4096
[ 0.000000] mminit::memmap_init Initialising map node 0 zone 1 pfns
4096 -> 228350
[ 0.000000] mminit::memmap_init Initialising map node 0 zone 2 pfns
228350 -> 521872
[ 0.000000] Using APIC driver default
[ 0.000000] ACPI: PM-Timer IO Port: 0x408
[ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] disabled)
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
[ 0.000000] ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
[ 0.000000] IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI
0-23
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] SMP: Allowing 2 CPUs, 1 hotplug CPUs
[ 0.000000] Allocating PCI resources starting at 7f700000 (gap:
7f700000:60900000)
[ 0.000000] setup_percpu: NR_CPUS:2 nr_cpumask_bits:2 nr_cpu_ids:2
nr_node_ids:1
[ 0.000000] PERCPU: Embedded 12 pages/cpu @c2000000 s27348 r0 d21804
u1048576
[ 0.000000] pcpu-alloc: s27348 r0 d21804 u1048576 alloc=1*2097152
[ 0.000000] pcpu-alloc: [0] 0 1
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on.
Total pages: 517681
[ 0.000000] Kernel command line: version=1.8.1 root=LABEL=CFBoot ro 3
console=ttyS0,115200 console=tty0 mminit_loglevel=4
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288
bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144
bytes)
[ 0.000000] Enabling fast FPU save and restore... done.
[ 0.000000] Enabling unmasked SIMD FPU exception support... done.
[ 0.000000] Initializing CPU#0
[ 0.000000] Subtract (46 early reservations)
[ 0.000000] #1 [0000001000 - 0000002000] EX TRAMPOLINE
[ 0.000000] #2 [0000100000 - 000048df10] TEXT DATA BSS
[ 0.000000] #3 [000048e000 - 00004920a6] BRK
[ 0.000000] #4 [00000f38e0 - 0000100000] BIOS reserved
[ 0.000000] #5 [00000f38d0 - 00000f38e0] MP-table mpf
[ 0.000000] #6 [000009f800 - 00000f1ea4] BIOS reserved
[ 0.000000] #7 [00000f201c - 00000f38d0] BIOS reserved
[ 0.000000] #8 [00000f1ea4 - 00000f201c] MP-table mpc
[ 0.000000] #9 [0000010000 - 0000011000] TRAMPOLINE
[ 0.000000] #10 [0000011000 - 0000015000] ACPI WAKEUP
[ 0.000000] #11 [0000015000 - 0000016000] PGTABLE
[ 0.000000] #12 [0000493000 - 000075a000] NEW RAMDISK
[ 0.000000] #13 [0001000000 - 0001001000] BOOTMEM
[ 0.000000] #14 [0001001000 - 0001ff1000] BOOTMEM
[ 0.000000] #15 [0001ff1000 - 0001ff1004] BOOTMEM
[ 0.000000] #16 [0001ff1040 - 0001ff1100] BOOTMEM
[ 0.000000] #17 [0001ff1100 - 0001ff1154] BOOTMEM
[ 0.000000] #18 [0001ff1180 - 0001ff4180] BOOTMEM
[ 0.000000] #19 [0001ff4180 - 0001ff41ec] BOOTMEM
[ 0.000000] #20 [0001ff4200 - 0001ffa200] BOOTMEM
[ 0.000000] #21 [0001ffa200 - 0001ffa22f] BOOTMEM
[ 0.000000] #22 [0001ffa240 - 0001ffa3cc] BOOTMEM
[ 0.000000] #23 [0001ffa400 - 0001ffa440] BOOTMEM
[ 0.000000] #24 [0001ffa440 - 0001ffa480] BOOTMEM
[ 0.000000] #25 [0001ffa480 - 0001ffa4c0] BOOTMEM
[ 0.000000] #26 [0001ffa4c0 - 0001ffa500] BOOTMEM
[ 0.000000] #27 [0001ffa500 - 0001ffa540] BOOTMEM
[ 0.000000] #28 [0001ffa540 - 0001ffa580] BOOTMEM
[ 0.000000] #29 [0001ffa580 - 0001ffa5c0] BOOTMEM
[ 0.000000] #30 [0001ffa5c0 - 0001ffa600] BOOTMEM
[ 0.000000] #31 [0001ffa600 - 0001ffa640] BOOTMEM
[ 0.000000] #32 [0001ffa640 - 0001ffa680] BOOTMEM
[ 0.000000] #33 [0001ffa680 - 0001ffa6d9] BOOTMEM
[ 0.000000] #34 [0001ffa700 - 0001ffa759] BOOTMEM
[ 0.000000] #35 [0002000000 - 000200c000] BOOTMEM
[ 0.000000] #36 [0002100000 - 000210c000] BOOTMEM
[ 0.000000] #37 [0001ffc780 - 0001ffc784] BOOTMEM
[ 0.000000] #38 [0001ffc7c0 - 0001ffc7c4] BOOTMEM
[ 0.000000] #39 [0001ffc800 - 0001ffc808] BOOTMEM
[ 0.000000] #40 [0001ffc840 - 0001ffc848] BOOTMEM
[ 0.000000] #41 [0001ffc880 - 0001ffc920] BOOTMEM
[ 0.000000] #42 [0001ffc940 - 0001ffc988] BOOTMEM
[ 0.000000] #43 [000200c000 - 0002010000] BOOTMEM
[ 0.000000] #44 [0002010000 - 0002090000] BOOTMEM
[ 0.000000] #45 [0002090000 - 00020d0000] BOOTMEM
[ 0.000000] Initializing HighMem for node 0 (00037bfe:0007f690)
[ 0.000000] Memory: 2063260k/2087488k available (2167k kernel code,
23776k reserved, 951k data, 332k init, 1174088k highmem)
[ 0.000000] virtual kernel memory layout:
[ 0.000000] fixmap : 0xfff91000 - 0xfffff000 ( 440 kB)
[ 0.000000] pkmap : 0xffc00000 - 0xffe00000 (2048 kB)
[ 0.000000] vmalloc : 0xf83fe000 - 0xffbfe000 ( 120 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xf7bfe000 ( 891 MB)
[ 0.000000] .init : 0xc130c000 - 0xc135f000 ( 332 kB)
[ 0.000000] .data : 0xc031dd65 - 0xc040bc80 ( 951 kB)
[ 0.000000] .text : 0xc0100000 - 0xc031dd65 (2167 kB)
[ 0.000000] Checking if this processor honours the WP bit even in
supervisor mode...Ok.
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] NR_IRQS:320
[ 0.000000] Console: colour VGA+ 80x25
[ 0.000000] console [tty0] enabled
[ 0.000000] console [ttyS0] enabled
[ 0.000000] Fast TSC calibration using PIT
[ 0.000000] Detected 1862.032 MHz processor.
[ 0.012006] Calibrating delay loop (skipped), value calculated using
timer frequency.. 3724.06 BogoMIPS (lpj=7448128)
[ 0.020230] Mount-cache hash table entries: 512
[ 0.024359] mce: CPU supports 6 MCE banks
[ 0.028015] CPU0: Thermal monitoring enabled (TM1)
[ 0.032005] using mwait in idle threads.
[ 0.036011] Performance Events: Core events, core PMU driver.
[ 0.044004] ... version: 1
[ 0.048003] ... bit width: 40
[ 0.052003] ... generic registers: 2
[ 0.056003] ... value mask: 000000ffffffffff
[ 0.060003] ... max period: 000000007fffffff
[ 0.064003] ... fixed-purpose events: 0
[ 0.068003] ... event mask: 0000000000000003
[ 0.072012] Checking 'hlt' instruction... OK.
[ 0.092892] SMP alternatives: switching to UP code
[ 0.102137] ACPI: Core revision 20100121
[ 0.120095] Enabling APIC mode: Flat. Using 1 I/O APICs
[ 0.124375] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 0.168897] CPU0: Intel(R) Celeron(R) M CPU 440 @ 1.86GHz
stepping 0c
[ 0.180000] Brought up 1 CPUs
[ 0.180000] Total of 1 processors activated (3724.06 BogoMIPS).
[ 0.180191] devtmpfs: initialized
[ 0.184844] NET: Registered protocol family 16
[ 0.188948] ACPI: bus type pci registered
[ 0.192277] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem
0xe0000000-0xefffffff] (base 0xe0000000)
[ 0.196027] PCI: MMCONFIG at [mem 0xe0000000-0xefffffff] reserved in E820
[ 0.200001] PCI: Using MMCONFIG for extended config space
[ 0.204001] PCI: Using configuration type 1 for base access
[ 0.219321] bio: create slab <bio-0> at 0
[ 0.236806] ACPI: Interpreter enabled
[ 0.240012] ACPI: (supports S0 S1 S5)
[ 0.244368] ACPI: Using IOAPIC for interrupt routing
[ 0.267171] ACPI: No dock devices found.
[ 0.268050] PCI: Using host bridge windows from ACPI; if necessary,
use "pci=nocrs" and report a bug
[ 0.272197] ACPI: PCI Root Bridge [PCI0] (0000:00)
[ 0.276463] pci_root PNP0A08:00: host bridge window [io 0x0000-0x0cf7]
[ 0.280010] pci_root PNP0A08:00: host bridge window [io 0x0d00-0xffff]
[ 0.284003] pci_root PNP0A08:00: host bridge window [mem
0x000a0000-0x000bffff]
[ 0.288003] pci_root PNP0A08:00: host bridge window [mem
0x000c0000-0x000dffff]
[ 0.292003] pci_root PNP0A08:00: host bridge window [mem
0x7f750000-0xfebfffff]
[ 0.297154] pci 0000:00:1f.0: quirk: [io 0x0400-0x047f] claimed by
ICH6 ACPI/GPIO/TCO
[ 0.300004] pci 0000:00:1f.0: quirk: [io 0x0480-0x04bf] claimed by
ICH6 GPIO
[ 0.304004] pci 0000:00:1f.0: ICH7 LPC Generic IO decode 1 PIO at
0800 (mask 003f)
[ 0.308004] pci 0000:00:1f.0: ICH7 LPC Generic IO decode 2 PIO at
0290 (mask 0007)
[ 0.312004] pci 0000:00:1f.0: ICH7 LPC Generic IO decode 3 PIO at
02f0 (mask 000f)
[ 0.316557] pci 0000:00:1c.0: PCI bridge to [bus 01-01]
[ 0.320285] pci 0000:00:1c.1: PCI bridge to [bus 02-02]
[ 0.324284] pci 0000:00:1c.2: PCI bridge to [bus 03-03]
[ 0.328289] pci 0000:00:1c.3: PCI bridge to [bus 04-04]
[ 0.332102] pci 0000:00:1e.0: PCI bridge to [bus 05-05] (subtractive
decode)
[ 0.366590] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 7 9 *10 11 12
14 15)
[ 0.374452] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 *5 7 9 10 11 12
14 15)
[ 0.382371] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 7 9 10 *11 12
14 15)
[ 0.390221] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 7 9 10 11 12
14 *15)
[ 0.398229] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 7 9 10 11 12
14 15) *0, disabled.
[ 0.407493] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 7 9 10 11 12
14 15) *0, disabled.
[ 0.412446] ACPI: PCI Interrupt Link [LNK0] (IRQs 3 4 5 7 9 10 11 12
14 15) *0, disabled.
[ 0.421932] ACPI: PCI Interrupt Link [LNK1] (IRQs 3 4 5 *7 9 10 11 12
14 15)
[ 0.430149] vgaarb: device added:
PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none
[ 0.432020] vgaarb: loaded
[ 0.436626] SCSI subsystem initialized
[ 0.440689] PCI: Using ACPI for IRQ routing
[ 0.444644] HPET: 3 timers in total, 0 timers will be used for
per-cpu timer
[ 0.452035] Switching to clocksource tsc
[ 0.456184] pnp: PnP ACPI init
[ 0.459331] ACPI: bus type pnp registered
[ 0.470105] pnp: PnP ACPI: found 13 devices
[ 0.474404] ACPI: ACPI bus type pnp unregistered
[ 0.479119] system 00:01: [io 0x04d0-0x04d1] has been reserved
[ 0.485131] system 00:01: [io 0x0290-0x029f] has been reserved
[ 0.491144] system 00:01: [io 0x0880-0x088f] has been reserved
[ 0.497168] system 00:09: [io 0x0400-0x04bf] could not be reserved
[ 0.503533] system 00:0b: [mem 0xe0000000-0xefffffff] has been reserved
[ 0.510249] system 00:0c: [mem 0x000f0000-0x000fffff] could not be
reserved
[ 0.517301] system 00:0c: [mem 0x7f6e0000-0x7f6fffff] could not be
reserved
[ 0.524355] system 00:0c: [mem 0x00000000-0x0009ffff] could not be
reserved
[ 0.531411] system 00:0c: [mem 0x00100000-0x7f6dffff] could not be
reserved
[ 0.538463] system 00:0c: [mem 0xfec00000-0xfec00fff] could not be
reserved
[ 0.545518] system 00:0c: [mem 0xfed13000-0xfed1dfff] has been reserved
[ 0.552218] system 00:0c: [mem 0xfed20000-0xfed8ffff] has been reserved
[ 0.558925] system 00:0c: [mem 0xfee00000-0xfee00fff] has been reserved
[ 0.565632] system 00:0c: [mem 0xffb00000-0xffb7ffff] has been reserved
[ 0.572341] system 00:0c: [mem 0xfff00000-0xffffffff] has been reserved
[ 0.579050] system 00:0c: [mem 0x000e0000-0x000effff] has been reserved
[ 0.621696] pci 0000:00:1c.0: PCI bridge to [bus 01-01]
[ 0.627020] pci 0000:00:1c.0: bridge window [io 0xb000-0xbfff]
[ 0.633210] pci 0000:00:1c.0: bridge window [mem 0xfd800000-0xfd8fffff]
[ 0.640087] pci 0000:00:1c.0: bridge window [mem
0xfd500000-0xfd5fffff 64bit pref]
[ 0.647977] pci 0000:00:1c.1: PCI bridge to [bus 02-02]
[ 0.653294] pci 0000:00:1c.1: bridge window [io 0xa000-0xafff]
[ 0.659475] pci 0000:00:1c.1: bridge window [mem 0xfde00000-0xfdefffff]
[ 0.666357] pci 0000:00:1c.1: bridge window [mem
0xfdd00000-0xfddfffff 64bit pref]
[ 0.674245] pci 0000:00:1c.2: PCI bridge to [bus 03-03]
[ 0.679555] pci 0000:00:1c.2: bridge window [io 0xe000-0xefff]
[ 0.685745] pci 0000:00:1c.2: bridge window [mem 0xfdc00000-0xfdcfffff]
[ 0.692625] pci 0000:00:1c.2: bridge window [mem
0xfdb00000-0xfdbfffff 64bit pref]
[ 0.700513] pci 0000:00:1c.3: PCI bridge to [bus 04-04]
[ 0.705832] pci 0000:00:1c.3: bridge window [io 0xd000-0xdfff]
[ 0.712021] pci 0000:00:1c.3: bridge window [mem 0xfda00000-0xfdafffff]
[ 0.718903] pci 0000:00:1c.3: bridge window [mem
0xfd900000-0xfd9fffff 64bit pref]
[ 0.726789] pci 0000:00:1e.0: PCI bridge to [bus 05-05]
[ 0.732108] pci 0000:00:1e.0: bridge window [io 0xc000-0xcfff]
[ 0.738288] pci 0000:00:1e.0: bridge window [mem 0xfd700000-0xfd7fffff]
[ 0.745169] pci 0000:00:1e.0: bridge window [mem
0xfd600000-0xfd6fffff 64bit pref]
[ 0.753064] pci 0000:00:1c.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 0.759872] pci 0000:00:1c.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17
[ 0.766673] pci 0000:00:1c.2: PCI INT C -> GSI 18 (level, low) -> IRQ 18
[ 0.773478] pci 0000:00:1c.3: PCI INT D -> GSI 19 (level, low) -> IRQ 19
[ 0.780438] NET: Registered protocol family 2
[ 0.784978] IP route cache hash table entries: 32768 (order: 5,
131072 bytes)
[ 0.792486] TCP established hash table entries: 131072 (order: 8,
1048576 bytes)
[ 0.800788] TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
[ 0.807884] TCP: Hash tables configured (established 131072 bind 65536)
[ 0.814599] TCP reno registered
[ 0.817831] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 0.823856] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 0.830480] NET: Registered protocol family 1
[ 0.835662] Trying to unpack rootfs image as initramfs...
[ 0.946856] Freeing initrd memory: 2844k freed
[ 0.955856] highmem bounce pool size: 64 pages
[ 0.960863] msgmni has been set to 1742
[ 0.964935] Block layer SCSI generic (bsg) driver version 0.4 loaded
(major 253)
[ 0.972479] io scheduler noop registered
[ 0.976486] io scheduler deadline registered
[ 0.980871] io scheduler cfq registered (default)
[ 0.987915] pcieport 0000:00:1c.0: Requesting control of PCIe PME
from ACPI BIOS
[ 0.995467] pcieport 0000:00:1c.0: Failed to receive control of PCIe
PME service: no _OSC support
[ 1.004485] pcie_pme: probe of 0000:00:1c.0:pcie01 failed with error -13
[ 1.011277] pcieport 0000:00:1c.1: Requesting control of PCIe PME
from ACPI BIOS
[ 1.018814] pcieport 0000:00:1c.1: Failed to receive control of PCIe
PME service: no _OSC support
[ 1.027827] pcie_pme: probe of 0000:00:1c.1:pcie01 failed with error -13
[ 1.034624] pcieport 0000:00:1c.2: Requesting control of PCIe PME
from ACPI BIOS
[ 1.042161] pcieport 0000:00:1c.2: Failed to receive control of PCIe
PME service: no _OSC support
[ 1.051176] pcie_pme: probe of 0000:00:1c.2:pcie01 failed with error -13
[ 1.057972] pcieport 0000:00:1c.3: Requesting control of PCIe PME
from ACPI BIOS
[ 1.065508] pcieport 0000:00:1c.3: Failed to receive control of PCIe
PME service: no _OSC support
[ 1.074522] pcie_pme: probe of 0000:00:1c.3:pcie01 failed with error -13
[ 1.088016] isapnp: Scanning for PnP cards...
[ 1.371961] Switched to NOHz mode on CPU #0
[ 1.450179] isapnp: No Plug & Play device found
[ 1.539158] Linux agpgart interface v0.103
[ 1.543720] agpgart-intel 0000:00:00.0: Intel 945GME Chipset
[ 1.549863] agpgart-intel 0000:00:00.0: detected 7932K stolen memory
[ 1.559170] agpgart-intel 0000:00:00.0: AGP aperture is 256M @ 0xd0000000
[ 1.566570] ipmi message handler version 39.2
[ 1.571042] IPMI Watchdog: driver initialized
[ 1.575491] Copyright (C) 2004 MontaVista Software - IPMI Powerdown
via sys_reboot.
[ 1.583285] Serial: 8250/16550 driver, 8 ports, IRQ sharing enabled
[ 1.844141] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[ 2.104138] serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
[ 2.112152] 00:06: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[ 2.118346] 00:07: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
[ 2.132969] brd: module loaded
[ 2.136786] ata_piix 0000:00:1f.1: PCI INT A -> GSI 18 (level, low)
-> IRQ 18
[ 2.144342] scsi0 : ata_piix
[ 2.147544] scsi1 : ata_piix
[ 2.151992] ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0xfa00
irq 14
[ 2.159058] ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0xfa08
irq 15
[ 2.166130] ata_piix 0000:00:1f.2: PCI INT B -> GSI 19 (level, low)
-> IRQ 19
[ 2.173364] ata_piix 0000:00:1f.2: MAP [ P0 P2 -- -- ]
[ 2.332309] scsi2 : ata_piix
[ 2.335447] scsi3 : ata_piix
[ 2.339839] ata3: SATA max UDMA/133 cmd 0xf900 ctl 0xf800 bmdma
0xf500 irq 19
[ 2.347075] ata4: SATA max UDMA/133 cmd 0xf700 ctl 0xf600 bmdma
0xf508 irq 19
[ 2.354713] ata1.00: ATA-10: SanDisk SDCFB-256, HDX 2.15, max MWDMA2
[ 2.361168] ata1.00: 501760 sectors, multi 0: LBA
[ 2.366815] PNP: PS/2 Controller [PNP0303:PS2K] at 0x60,0x64 irq 1
[ 2.373089] PNP: PS/2 appears to have AUX port disabled, if this is
incorrect please boot with i8042.nopnp
[ 2.383237] ata1.00: configured for MWDMA2
[ 2.387617] scsi 0:0:0:0: Direct-Access ATA SanDisk SDCFB-25
HDX PQ: 0 ANSI: 5
[ 2.397131] serio: i8042 KBD port at 0x60,0x64 irq 1
[ 2.402663] sd 0:0:0:0: [sda] 501760 512-byte logical blocks: (256
MB/245 MiB)
[ 2.410213] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 2.415996] sd 0:0:0:0: [sda] Write Protect is off
[ 2.421265] mice: PS/2 mouse device common for all mice
[ 2.426696] sd 0:0:0:0: [sda] Write cache: disabled, read cache:
enabled, doesn't support DPO or FUA
[ 2.436505] input: PC Speaker as /class/input/input0
[ 2.441833] sda:
[ 2.443773] I2O subsystem v1.325
[ 2.447399] i2o: max drivers = 8
[ 2.450782] sda1 sda2
[ 2.454331] sd 0:0:0:0: [sda] Attached SCSI disk
[ 2.459128] rtc_cmos 00:03: RTC can wake from S4
[ 2.464098] rtc_cmos 00:03: rtc core: registered rtc_cmos as rtc0
[ 2.470325] rtc0: alarms up to one month, 242 bytes nvram, hpet irqs
[ 2.476883] i2c /dev entries driver
[ 2.480693] cpuidle: using governor ladder
[ 2.484886] cpuidle: using governor menu
[ 2.489274] TCP cubic registered
[ 2.492601] NET: Registered protocol family 17
[ 2.497141] Using IPI No-Shortcut mode
[ 2.501150] input: AT Translated Set 2 keyboard as /class/input/input1
[ 2.508568] rtc_cmos 00:03: setting system clock to 2010-07-28
11:58:10 UTC (1280318290)
[ 2.516814] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
[ 2.522915] EDD information not available.
[ 2.549277] ata3.01: ATA-8: FUJITSU MHY2060BH, 0000000C, max UDMA/100
[ 2.555814] ata3.01: 117210240 sectors, multi 16: LBA48 NCQ (depth 0/32)
[ 2.576185] ata3.01: configured for UDMA/100
[ 2.580692] scsi 2:0:1:0: Direct-Access ATA FUJITSU MHY2060B
0000 PQ: 0 ANSI: 5
[ 2.589387] sd 2:0:1:0: [sdb] 117210240 512-byte logical blocks:
(60.0 GB/55.8 GiB)
[ 2.597468] sd 2:0:1:0: Attached scsi generic sg1 type 0
[ 2.603084] sd 2:0:1:0: [sdb] Write Protect is off
[ 2.609094] sd 2:0:1:0: [sdb] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA
[ 2.618551] sdb: sdb1
[ 2.621878] sd 2:0:1:0: [sdb] Attached SCSI disk
[ 2.626603] Freeing unused kernel memory: 332k freed
[ 2.631867] Write protecting the kernel text: 2168k
[ 2.636856] Write protecting the kernel read-only data: 768k
[ 7.781473] input: Power Button as /class/input/input2
[ 7.786940] ACPI: Power Button [PWRB]
[ 7.790832] input: Sleep Button as /class/input/input3
[ 7.796174] ACPI: Sleep Button [SLPB]
[ 7.800101] input: Power Button as /class/input/input4
[ 7.805427] ACPI: Power Button [PWRF]
[ 8.079306] thermal LNXTHERM:00: registered as thermal_zone0
[ 8.085126] ACPI: Thermal Zone [TZ00] (0 C)
[ 8.205372] thermal LNXTHERM:02: registered as thermal_zone1
[ 8.211167] ACPI: Thermal Zone [THRM] (40 C)
[ 8.312267] ACPI: Fan [FAN] (on)
[ 8.380517] usbcore: registered new interface driver usbfs
[ 8.386203] usbcore: registered new interface driver hub
[ 8.410155] e1000e: Intel(R) PRO/1000 Network Driver - 1.0.2-k2
[ 8.416185] e1000e: Copyright (c) 1999 - 2009 Intel Corporation.
[ 8.422329] e1000e 0000:01:00.0: PCI INT A -> GSI 16 (level, low) ->
IRQ 16
[ 8.429845] e1000e 0000:01:00.0: Disabling ASPM L0s
[ 8.495118] iTCO_vendor_support: vendor-support=0
[ 8.505284] i801_smbus 0000:00:1f.3: PCI INT B -> GSI 19 (level, low)
-> IRQ 19
[ 8.563396] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.05
[ 8.569259] iTCO_wdt: Found a ICH7-M or ICH7-U TCO device (Version=2,
TCOBASE=0x0460)
[ 8.577435] iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
[ 8.690684] usbcore: registered new device driver usb
[ 8.717787] uhci_hcd: USB Universal Host Controller Interface driver
[ 8.724316] uhci_hcd 0000:00:1d.0: PCI INT A -> GSI 23 (level, low)
-> IRQ 23
[ 8.731562] uhci_hcd 0000:00:1d.0: UHCI Host Controller
[ 8.736919] uhci_hcd 0000:00:1d.0: new USB bus registered, assigned
bus number 1
[ 8.744505] uhci_hcd 0000:00:1d.0: irq 23, io base 0x0000fe00
[ 8.750789] hub 1-0:1.0: USB hub found
[ 8.754634] hub 1-0:1.0: 2 ports detected
[ 8.758909] uhci_hcd 0000:00:1d.1: PCI INT B -> GSI 19 (level, low)
-> IRQ 19
[ 8.766149] uhci_hcd 0000:00:1d.1: UHCI Host Controller
[ 8.771484] uhci_hcd 0000:00:1d.1: new USB bus registered, assigned
bus number 2
[ 8.779054] uhci_hcd 0000:00:1d.1: irq 19, io base 0x0000fd00
[ 8.785216] hub 2-0:1.0: USB hub found
[ 8.789064] hub 2-0:1.0: 2 ports detected
[ 8.793333] uhci_hcd 0000:00:1d.2: PCI INT C -> GSI 18 (level, low)
-> IRQ 18
[ 8.800570] uhci_hcd 0000:00:1d.2: UHCI Host Controller
[ 8.805898] uhci_hcd 0000:00:1d.2: new USB bus registered, assigned
bus number 3
[ 8.813483] uhci_hcd 0000:00:1d.2: irq 18, io base 0x0000fc00
[ 8.819639] hub 3-0:1.0: USB hub found
[ 8.823486] hub 3-0:1.0: 2 ports detected
[ 8.827765] uhci_hcd 0000:00:1d.3: PCI INT D -> GSI 16 (level, low)
-> IRQ 16
[ 8.835022] uhci_hcd 0000:00:1d.3: UHCI Host Controller
[ 8.840350] uhci_hcd 0000:00:1d.3: new USB bus registered, assigned
bus number 4
[ 8.847931] uhci_hcd 0000:00:1d.3: irq 16, io base 0x0000fb00
[ 8.854096] hub 4-0:1.0: USB hub found
[ 8.857947] hub 4-0:1.0: 2 ports detected
[ 8.870284] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 8.876913] Warning! ehci_hcd should always be loaded before uhci_hcd
and ohci_hcd, not after
[ 8.885618] ehci_hcd 0000:00:1d.7: PCI INT A -> GSI 23 (level, low)
-> IRQ 23
[ 8.892874] ehci_hcd 0000:00:1d.7: EHCI Host Controller
[ 8.898203] ehci_hcd 0000:00:1d.7: new USB bus registered, assigned
bus number 5
[ 8.905802] ehci_hcd 0000:00:1d.7: using broken periodic workaround
[ 8.912173] ehci_hcd 0000:00:1d.7: debug port 1
[ 8.920686] ehci_hcd 0000:00:1d.7: irq 23, io mem 0xfdfff000
[ 9.012922] ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00
[ 9.019234] hub 5-0:1.0: USB hub found
[ 9.023094] hub 5-0:1.0: 8 ports detected
[ 9.038452] 0000:01:00.0: eth0: (PCI Express:2.5GB/s:Width x1)
00:30:18:4c:58:29
[ 9.046006] 0000:01:00.0: eth0: Intel(R) PRO/1000 Network Connection
[ 9.052523] 0000:01:00.0: eth0: MAC: 2, PHY: 2, PBA No: ffffff-0ff
[ 9.058827] e1000e 0000:02:00.0: PCI INT A -> GSI 17 (level, low) ->
IRQ 17
[ 9.066664] e1000e 0000:02:00.0: Disabling ASPM L0s
[ 9.188605] 0000:02:00.0: eth1: (PCI Express:2.5GB/s:Width x1)
00:30:18:4c:58:2a
[ 9.196151] 0000:02:00.0: eth1: Intel(R) PRO/1000 Network Connection
[ 9.202668] 0000:02:00.0: eth1: MAC: 2, PHY: 2, PBA No: ffffff-0ff
[ 9.208978] e1000e 0000:03:00.0: PCI INT A -> GSI 18 (level, low) ->
IRQ 18
[ 9.216810] e1000e 0000:03:00.0: Disabling ASPM L0s
[ 9.341096] 0000:03:00.0: eth2: (PCI Express:2.5GB/s:Width x1)
00:30:18:4c:58:2b
[ 9.348639] 0000:03:00.0: eth2: Intel(R) PRO/1000 Network Connection
[ 9.355156] 0000:03:00.0: eth2: MAC: 2, PHY: 2, PBA No: ffffff-0ff
[ 9.361461] e1000e 0000:04:00.0: PCI INT A -> GSI 19 (level, low) ->
IRQ 19
[ 9.369282] e1000e 0000:04:00.0: Disabling ASPM L0s
[ 9.492688] 0000:04:00.0: eth3: (PCI Express:2.5GB/s:Width x1)
00:30:18:4c:58:2c
[ 9.500224] 0000:04:00.0: eth3: Intel(R) PRO/1000 Network Connection
[ 9.506741] 0000:04:00.0: eth3: MAC: 2, PHY: 2, PBA No: ffffff-0ff
[ 11.810754] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 11.844566] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[ 11.850883] CONFIG_NF_CT_ACCT is deprecated and will be removed soon.
Please use
[ 11.858426] nf_conntrack.acct=1 kernel parameter, acct=1 nf_conntrack
module option or
[ 11.866483] sysctl net.netfilter.nf_conntrack_acct=1 to enable it.
[ 17.178179] Mem-Info:
[ 17.180590] DMA per-cpu:
[ 17.182169] CPU 0: hi: 0, btch: 1 usd: 0
[ 17.182169] Normal per-cpu:
[ 17.182169] CPU 0: hi: 186, btch: 31 usd: 116
[ 17.182169] HighMem per-cpu:
[ 17.182169] CPU 0: hi: 186, btch: 31 usd: 71
[ 17.182169] active_anon:935 inactive_anon:125 isolated_anon:0
[ 17.182169] active_file:1053 inactive_file:1801 isolated_file:0
[ 17.182169] unevictable:0 dirty:0 writeback:0 unstable:0
[ 17.182169] free:509562 slab_reclaimable:624 slab_unreclaimable:1463
[ 17.182169] mapped:621 shmem:203 pagetables:51 bounce:0
[ 17.182169] DMA free:12248kB min:64kB low:80kB high:96kB
active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB
unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15804kB
mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB
slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB
pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0
all_unreclaimable? no
[ 17.182169] lowmem_reserve[]: 0 869 2006 2006
[ 17.182169] Normal free:867288kB min:3736kB low:4668kB high:5604kB
active_anon:0kB inactive_anon:0kB active_file:568kB inactive_file:684kB
unevictable:0kB isolated(anon):0kB isolated(file):0kB present:890008kB
mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB
slab_reclaimable:2496kB slab_unreclaimable:5852kB kernel_stack:328kB
pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0
all_unreclaimable? no
[ 17.182169] lowmem_reserve[]: 0 0 9100 9100
[ 17.182169] HighMem free:1158712kB min:512kB low:1732kB high:2956kB
active_anon:3740kB inactive_anon:500kB active_file:3644kB
inactive_file:6520kB unevictable:0kB isolated(anon):0kB
isolated(file):0kB present:1164912kB mlocked:0kB dirty:0kB writeback:0kB
mapped:2484kB shmem:812kB slab_reclaimable:0kB slab_unreclaimable:0kB
kernel_stack:0kB pagetables:204kB unstable:0kB bounce:0kB
writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[ 17.182169] lowmem_reserve[]: 0 0 0 0
[ 17.182169] DMA: 2*4kB 2*8kB 2*16kB 3*32kB 1*64kB 2*128kB 2*256kB
0*512kB 1*1024kB 1*2048kB 2*4096kB = 12248kB
[ 17.182169] Normal: 10*4kB 18*8kB 8*16kB 7*32kB 3*64kB 4*128kB
3*256kB 2*512kB 2*1024kB 3*2048kB 209*4096kB = 867288kB
[ 17.182169] HighMem: 2*4kB 2*8kB 4*16kB 5*32kB 3*64kB 1*128kB 4*256kB
4*512kB 2*1024kB 1*2048kB 281*4096kB = 1158712kB
[ 17.182169] 3057 total pagecache pages
[ 17.182169] 0 pages in swap cache
[ 17.182169] Swap cache stats: add 0, delete 0, find 0/0
[ 17.182169] Free swap = 0kB
[ 17.182169] Total swap = 0kB
[ 17.182169] BUG: unable to handle kernel paging request at 4c4fe4ad
[ 17.182169] IP: [<c01d8a07>] show_mem+0xbf/0x15c
[ 17.182169] *pdpt = 00000000368ed001 *pde = 0000000000000000
[ 17.182169] Oops: 0000 [#1] SMP
[ 17.182169] last sysfs file: /sys/kernel/uevent_seqnum
[ 17.182169] Modules linked in: nf_nat_irc nf_nat_ftp ipt_MASQUERADE
ipt_REJECT ipt_REDIRECT xt_state xt_limit ipt_LOG iptable_nat nf_nat
iptable_mangle iptable_filter nf_conntrack_irc nf_conntrack_ftp
nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables x_tables
coretemp ehci_hcd uhci_hcd iTCO_wdt i2c_i801 iTCO_vendor_support e1000e
usbcore fan thermal processor button evdev nls_iso8859_1
[ 17.182169]
[ 17.182169] Pid: 0, comm: swapper Not tainted 2.6.34.1 #26
945GM/E-ITE8712/945GM/E-ITE8712
[ 17.182169] EIP: 0060:[<c01d8a07>] EFLAGS: 00010002 CPU: 0
[ 17.182169] EIP is at show_mem+0xbf/0x15c
[ 17.182169] EAX: 4c4fe4a9 EBX: 00018580 ECX: 00000001 EDX: c130c000
[ 17.182169] ESI: 00018570 EDI: c0407900 EBP: c03dfdc8 ESP: c03dfda8
[ 17.182169] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[ 17.182169] Process swapper (pid: 0, ti=c03de000 task=c03edea0
task.ti=c03de000)
[ 17.182169] Stack:
[ 17.182169] 00018570 0000147f 0000006d 00000000 00000000 f7409cd0
00000046 c03ff203
[ 17.182169] <0> c03dfdd0 c0232951 c03dfddc c0231e80 00000002 c03dfe10
c023336b f6d34d88
[ 17.182169] <0> 010200b4 f7409cd0 f7409cd0 00000001 00000001 00000000
0000f203 f6ce33f0
[ 17.182169] Call Trace:
[ 17.182169] [<c0232951>] ? fn_show_mem+0x8/0xa
[ 17.182169] [<c0231e80>] ? k_spec+0x33/0x36
[ 17.182169] [<c023336b>] ? kbd_event+0x515/0x57e
[ 17.182169] [<c02817e3>] ? input_pass_event+0x63/0x9e
[ 17.182169] [<c0282a62>] ? input_handle_event+0x357/0x360
[ 17.182169] [<c0283805>] ? input_event+0x4b/0x5e
[ 17.182169] [<c0286610>] ? atkbd_interrupt+0x45e/0x536
[ 17.182169] [<c027f02b>] ? serio_interrupt+0x30/0x66
[ 17.182169] [<c027fe6c>] ? i8042_interrupt+0x25e/0x271
[ 17.182169] [<c013d233>] ? sched_clock_tick+0x6d/0x72
[ 17.182169] [<c014c011>] ? handle_IRQ_event+0x24/0x9e
[ 17.182169] [<c014d952>] ? handle_edge_irq+0xb4/0x116
[ 17.182169] [<c010441e>] ? handle_irq+0x1a/0x24
[ 17.182169] [<c0103cc0>] ? do_IRQ+0x40/0x9b
[ 17.182169] [<c0102c29>] ? common_interrupt+0x29/0x30
[ 17.182169] [<c010868f>] ? mwait_idle+0x4c/0x52
[ 17.182169] [<c01018dc>] ? cpu_idle+0x44/0x5d
[ 17.182169] [<c030c8e6>] ? rest_init+0x62/0x64
[ 17.182169] [<c040c8a9>] ? start_kernel+0x29b/0x2a0
[ 17.182169] [<c040c0b3>] ? i386_start_kernel+0xb3/0xb8
[ 17.182169] Code: c0 09 00 00 75 0c 83 3d e4 d7 47 c0 02 75 03 ff 45
f0 f6 c5 04 74 05 ff 45 e4 eb 3d c1 e9 0f 83 e1 01 75 04 89 d0 eb 03 8b
42 0c <8b> 40 04 48 75 05 ff 45 ec eb 23 85 c9 89 d0 74 03 8b 42 0c 8b
[ 17.182169] EIP: [<c01d8a07>] show_mem+0xbf/0x15c SS:ESP 0068:c03dfda8
[ 17.182169] CR2: 000000004c4fe4ad
[ 17.182169] ---[ end trace 4ffc5fbb4005ae74 ]---
[ 17.182169] Kernel panic - not syncing: Fatal exception in interrupt
[ 17.182169] Pid: 0, comm: swapper Tainted: G D 2.6.34.1 #26
[ 17.182169] Call Trace:
[ 17.182169] [<c0129133>] panic+0x3e/0xa8
[ 17.182169] [<c0105093>] oops_end+0x6f/0x7d
[ 17.182169] [<c0119583>] no_context+0x153/0x15d
[ 17.182169] [<c0170982>] ? show_swap_cache_info+0x5e/0x62
[ 17.182169] [<c0119715>] __bad_area_nosemaphore+0xe5/0xed
[ 17.182169] [<c0119781>] bad_area_nosemaphore+0xd/0x10
[ 17.182169] [<c0119a0e>] do_page_fault+0x13c/0x2ea
[ 17.182169] [<c01198d2>] ? do_page_fault+0x0/0x2ea
[ 17.182169] [<c031d176>] error_code+0x66/0x6c
[ 17.182169] [<c01198d2>] ? do_page_fault+0x0/0x2ea
[ 17.182169] [<c01d8a07>] ? show_mem+0xbf/0x15c
[ 17.182169] [<c0232951>] fn_show_mem+0x8/0xa
[ 17.182169] [<c0231e80>] k_spec+0x33/0x36
[ 17.182169] [<c023336b>] kbd_event+0x515/0x57e
[ 17.182169] [<c02817e3>] input_pass_event+0x63/0x9e
[ 17.182169] [<c0282a62>] input_handle_event+0x357/0x360
[ 17.182169] [<c0283805>] input_event+0x4b/0x5e
[ 17.182169] [<c0286610>] atkbd_interrupt+0x45e/0x536
[ 17.182169] [<c027f02b>] serio_interrupt+0x30/0x66
[ 17.182169] [<c027fe6c>] i8042_interrupt+0x25e/0x271
[ 17.182169] [<c013d233>] ? sched_clock_tick+0x6d/0x72
[ 17.182169] [<c014c011>] handle_IRQ_event+0x24/0x9e
[ 17.182169] [<c014d952>] handle_edge_irq+0xb4/0x116
[ 17.182169] [<c010441e>] handle_irq+0x1a/0x24
[ 17.182169] [<c0103cc0>] do_IRQ+0x40/0x9b
[ 17.182169] [<c0102c29>] common_interrupt+0x29/0x30
[ 17.182169] [<c010868f>] ? mwait_idle+0x4c/0x52
[ 17.182169] [<c01018dc>] cpu_idle+0x44/0x5d
[ 17.182169] [<c030c8e6>] rest_init+0x62/0x64
[ 17.182169] [<c040c8a9>] start_kernel+0x29b/0x2a0
[ 17.182169] [<c040c0b3>] i386_start_kernel+0xb3/0xb8
> Theory 3
> --------
> I see this message early in boot
> Phoenix BIOS detected: BIOS may corrupt low RAM, working around it.
>
> Is there any possibility that the wrong range of memory is being reserved
> and in fact the BIOS is screwing with the region of memory memmap is stored in?
Can't be fully ruled out indeed, since during memtest86+ no kernel with
ACPI loaded has been loaded the BIOS may very well be less active or be
inactive. And thus not showing any memory changes caused by BIOS RAM usage.
>
> Theory 4
> --------
>
> with the early boot changes, is there any possibility that bootmem used the
> low 64K? To test the theory, can the kernel be rebuilt with CONFIG_NO_BOOTMEM
> *not* set to use the older bootmem logic?
[ 0.000000] Linux version 2.6.34.1
(root@doeblin.development.xafax.nl) (gcc version 4.2.4) #27 SMP Wed Jul
28 14:19:36 CEST 2010
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
[ 0.000000] BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
[ 0.000000] BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
[ 0.000000] BIOS-e820: 0000000000100000 - 000000007f690000 (usable)
[ 0.000000] BIOS-e820: 000000007f690000 - 000000007f6e0000 (reserved)
[ 0.000000] BIOS-e820: 000000007f6e0000 - 000000007f6e3000 (ACPI NVS)
[ 0.000000] BIOS-e820: 000000007f6e3000 - 000000007f6f0000 (ACPI data)
[ 0.000000] BIOS-e820: 000000007f6f0000 - 000000007f700000 (reserved)
[ 0.000000] BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
[ 0.000000] BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] DMI 2.2 present.
[ 0.000000] Phoenix BIOS detected: BIOS may corrupt low RAM, working
around it.
[ 0.000000] last_pfn = 0x7f690 max_arch_pfn = 0x1000000
[ 0.000000] PAT not supported by CPU.
[ 0.000000] found SMP MP-table at [c00f38d0] f38d0
[ 0.000000] init_memory_mapping: 0000000000000000-0000000037bfe000
[ 0.000000] RAMDISK: 37d29000 - 37ff0000
[ 0.000000] Allocated new RAMDISK: 00494000 - 0075a6bb
[ 0.000000] Move RAMDISK from 0000000037d29000 - 0000000037fef6ba to
00494000 - 0075a6ba
[ 0.000000] ACPI: RSDP 000f7c90 00014 (v00 IntelR)
[ 0.000000] ACPI: RSDT 7f6e3000 00034 (v01 IntelR AWRDACPI 42302E31
AWRD 00000000)
[ 0.000000] ACPI: FACP 7f6e3080 00074 (v01 IntelR AWRDACPI 42302E31
AWRD 00000000)
[ 0.000000] ACPI: DSDT 7f6e3100 05122 (v01 INTELR AWRDACPI 00001000
MSFT 03000000)
[ 0.000000] ACPI: FACS 7f6e0000 00040
[ 0.000000] ACPI: IDTS 7f6e82c0 00028 (v01 IntelR AWRDACPI 42302E31
AWRD 00000000)
[ 0.000000] ACPI: MCFG 7f6e8300 0003C (v01 IntelR AWRDACPI 42302E31
AWRD 00000000)
[ 0.000000] ACPI: APIC 7f6e8240 00068 (v01 IntelR AWRDACPI 42302E31
AWRD 00000000)
[ 0.000000] mminit::memory_register Entering add_active_range(0,
0x10, 0x9f) 0 entries of 256 used
[ 0.000000] mminit::memory_register Entering add_active_range(0,
0x100, 0x7f690) 1 entries of 256 used
[ 0.000000] 1146MB HIGHMEM available.
[ 0.000000] 891MB LOWMEM available.
[ 0.000000] mapped low ram: 0 - 37bfe000
[ 0.000000] low ram: 0 - 37bfe000
[ 0.000000] node 0 low ram: 00000000 - 37bfe000
[ 0.000000] node 0 bootmap 00016000 - 0001cf80
[ 0.000000] (13/32 early reservations) ==> bootmem [0000000000 -
0037bfe000]
[ 0.000000] #0 [0000001000 - 0000002000] EX TRAMPOLINE ==>
[0000001000 - 0000002000]
[ 0.000000] #1 [0000100000 - 000048ef10] TEXT DATA BSS ==>
[0000100000 - 000048ef10]
[ 0.000000] #2 [000048f000 - 00004930a6] BRK ==>
[000048f000 - 00004930a6]
[ 0.000000] #3 [00000f38e0 - 0000100000] BIOS reserved ==>
[00000f38e0 - 0000100000]
[ 0.000000] #4 [00000f38d0 - 00000f38e0] MP-table mpf ==>
[00000f38d0 - 00000f38e0]
[ 0.000000] #5 [000009f800 - 00000f1ea4] BIOS reserved ==>
[000009f800 - 00000f1ea4]
[ 0.000000] #6 [00000f201c - 00000f38d0] BIOS reserved ==>
[00000f201c - 00000f38d0]
[ 0.000000] #7 [00000f1ea4 - 00000f201c] MP-table mpc ==>
[00000f1ea4 - 00000f201c]
[ 0.000000] #8 [0000010000 - 0000011000] TRAMPOLINE ==>
[0000010000 - 0000011000]
[ 0.000000] #9 [0000011000 - 0000015000] ACPI WAKEUP ==>
[0000011000 - 0000015000]
[ 0.000000] #10 [0000015000 - 0000016000] PGTABLE ==>
[0000015000 - 0000016000]
[ 0.000000] #11 [0000494000 - 000075b000] NEW RAMDISK ==>
[0000494000 - 000075b000]
[ 0.000000] #12 [0000016000 - 000001d000] BOOTMAP ==>
[0000016000 - 000001d000]
[ 0.000000] Zone PFN ranges:
[ 0.000000] DMA 0x00000010 -> 0x00001000
[ 0.000000] Normal 0x00001000 -> 0x00037bfe
[ 0.000000] HighMem 0x00037bfe -> 0x0007f690
[ 0.000000] Movable zone start PFN for each node
[ 0.000000] early_node_map[2] active PFN ranges
[ 0.000000] 0: 0x00000010 -> 0x0000009f
[ 0.000000] 0: 0x00000100 -> 0x0007f690
[ 0.000000] mminit::pageflags_layout_widths Section 0 Node 0 Zone 2
Flags 24
[ 0.000000] mminit::pageflags_layout_shifts Section 0 Node 0 Zone 2
[ 0.000000] mminit::pageflags_layout_offsets Section 0 Node 0 Zone 30
[ 0.000000] mminit::pageflags_layout_zoneid Zone ID: 30 -> 32
[ 0.000000] mminit::pageflags_layout_usage location: 32 -> 30 unused
30 -> 24 flags 24 -> 0
[ 0.000000] mminit::memmap_init Initialising map node 0 zone 0 pfns
16 -> 4096
[ 0.000000] mminit::memmap_init Initialising map node 0 zone 1 pfns
4096 -> 228350
[ 0.000000] mminit::memmap_init Initialising map node 0 zone 2 pfns
228350 -> 521872
[ 0.000000] Using APIC driver default
[ 0.000000] ACPI: PM-Timer IO Port: 0x408
[ 0.000000] ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
[ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] disabled)
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x00] high edge lint[0x1])
[ 0.000000] ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
[ 0.000000] ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
[ 0.000000] IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI
0-23
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 0.000000] Using ACPI (MADT) for SMP configuration information
[ 0.000000] SMP: Allowing 2 CPUs, 1 hotplug CPUs
[ 0.000000] Allocating PCI resources starting at 7f700000 (gap:
7f700000:60900000)
[ 0.000000] setup_percpu: NR_CPUS:2 nr_cpumask_bits:2 nr_cpu_ids:2
nr_node_ids:1
[ 0.000000] PERCPU: Embedded 12 pages/cpu @c2000000 s27348 r0 d21804
u1048576
[ 0.000000] pcpu-alloc: s27348 r0 d21804 u1048576 alloc=1*2097152
[ 0.000000] pcpu-alloc: [0] 0 1
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on.
Total pages: 517681
[ 0.000000] Kernel command line: version=1.8.1 root=LABEL=CFBoot ro 3
console=ttyS0,115200 console=tty0 mminit_loglevel=4
[ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288
bytes)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144
bytes)
[ 0.000000] Enabling fast FPU save and restore... done.
[ 0.000000] Enabling unmasked SIMD FPU exception support... done.
[ 0.000000] Initializing CPU#0
[ 0.000000] Initializing HighMem for node 0 (00037bfe:0007f690)
[ 0.000000] Memory: 2063248k/2087488k available (2167k kernel code,
23788k reserved, 951k data, 336k init, 1174088k highmem)
[ 0.000000] virtual kernel memory layout:
[ 0.000000] fixmap : 0xfff91000 - 0xfffff000 ( 440 kB)
[ 0.000000] pkmap : 0xffc00000 - 0xffe00000 (2048 kB)
[ 0.000000] vmalloc : 0xf83fe000 - 0xffbfe000 ( 120 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xf7bfe000 ( 891 MB)
[ 0.000000] .init : 0xc130c000 - 0xc1360000 ( 336 kB)
[ 0.000000] .data : 0xc031dd85 - 0xc040bc80 ( 951 kB)
[ 0.000000] .text : 0xc0100000 - 0xc031dd85 (2167 kB)
[ 0.000000] Checking if this processor honours the WP bit even in
supervisor mode...Ok.
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] NR_IRQS:320
[ 0.000000] Console: colour VGA+ 80x25
[ 0.000000] console [tty0] enabled
[ 0.000000] console [ttyS0] enabled
[ 0.000000] Fast TSC calibration using PIT
[ 0.000000] Detected 1862.070 MHz processor.
[ 0.012005] Calibrating delay loop (skipped), value calculated using
timer frequency.. 3724.14 BogoMIPS (lpj=7448280)
[ 0.020230] Mount-cache hash table entries: 512
[ 0.024355] mce: CPU supports 6 MCE banks
[ 0.028015] CPU0: Thermal monitoring enabled (TM1)
[ 0.032005] using mwait in idle threads.
[ 0.036010] Performance Events: Core events, core PMU driver.
[ 0.044004] ... version: 1
[ 0.048003] ... bit width: 40
[ 0.052003] ... generic registers: 2
[ 0.056003] ... value mask: 000000ffffffffff
[ 0.060003] ... max period: 000000007fffffff
[ 0.064003] ... fixed-purpose events: 0
[ 0.068003] ... event mask: 0000000000000003
[ 0.072012] Checking 'hlt' instruction... OK.
[ 0.092896] SMP alternatives: switching to UP code
[ 0.102149] ACPI: Core revision 20100121
[ 0.120095] Enabling APIC mode: Flat. Using 1 I/O APICs
[ 0.124370] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 0.168875] CPU0: Intel(R) Celeron(R) M CPU 440 @ 1.86GHz
stepping 0c
[ 0.180000] Brought up 1 CPUs
[ 0.180000] Total of 1 processors activated (3724.14 BogoMIPS).
[ 0.180193] devtmpfs: initialized
[ 0.184837] NET: Registered protocol family 16
[ 0.188950] ACPI: bus type pci registered
[ 0.192274] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem
0xe0000000-0xefffffff] (base 0xe0000000)
[ 0.196027] PCI: MMCONFIG at [mem 0xe0000000-0xefffffff] reserved in E820
[ 0.200001] PCI: Using MMCONFIG for extended config space
[ 0.204001] PCI: Using configuration type 1 for base access
[ 0.219270] bio: create slab <bio-0> at 0
[ 0.236735] ACPI: Interpreter enabled
[ 0.240012] ACPI: (supports S0 S1 S5)
[ 0.244360] ACPI: Using IOAPIC for interrupt routing
[ 0.267044] ACPI: No dock devices found.
[ 0.268052] PCI: Using host bridge windows from ACPI; if necessary,
use "pci=nocrs" and report a bug
[ 0.272197] ACPI: PCI Root Bridge [PCI0] (0000:00)
[ 0.276475] pci_root PNP0A08:00: host bridge window [io 0x0000-0x0cf7]
[ 0.280010] pci_root PNP0A08:00: host bridge window [io 0x0d00-0xffff]
[ 0.284003] pci_root PNP0A08:00: host bridge window [mem
0x000a0000-0x000bffff]
[ 0.288003] pci_root PNP0A08:00: host bridge window [mem
0x000c0000-0x000dffff]
[ 0.292003] pci_root PNP0A08:00: host bridge window [mem
0x7f750000-0xfebfffff]
[ 0.297153] pci 0000:00:1f.0: quirk: [io 0x0400-0x047f] claimed by
ICH6 ACPI/GPIO/TCO
[ 0.300004] pci 0000:00:1f.0: quirk: [io 0x0480-0x04bf] claimed by
ICH6 GPIO
[ 0.304004] pci 0000:00:1f.0: ICH7 LPC Generic IO decode 1 PIO at
0800 (mask 003f)
[ 0.308004] pci 0000:00:1f.0: ICH7 LPC Generic IO decode 2 PIO at
0290 (mask 0007)
[ 0.312004] pci 0000:00:1f.0: ICH7 LPC Generic IO decode 3 PIO at
02f0 (mask 000f)
[ 0.316556] pci 0000:00:1c.0: PCI bridge to [bus 01-01]
[ 0.320283] pci 0000:00:1c.1: PCI bridge to [bus 02-02]
[ 0.324283] pci 0000:00:1c.2: PCI bridge to [bus 03-03]
[ 0.328287] pci 0000:00:1c.3: PCI bridge to [bus 04-04]
[ 0.332098] pci 0000:00:1e.0: PCI bridge to [bus 05-05] (subtractive
decode)
[ 0.369268] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 7 9 *10 11 12
14 15)
[ 0.377203] ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 *5 7 9 10 11 12
14 15)
[ 0.384901] ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 7 9 10 *11 12
14 15)
[ 0.392886] ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 7 9 10 11 12
14 *15)
[ 0.400982] ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 7 9 10 11 12
14 15) *0, disabled.
[ 0.409938] ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 7 9 10 11 12
14 15) *0, disabled.
[ 0.419183] ACPI: PCI Interrupt Link [LNK0] (IRQs 3 4 5 7 9 10 11 12
14 15) *0, disabled.
[ 0.428440] ACPI: PCI Interrupt Link [LNK1] (IRQs 3 4 5 *7 9 10 11 12
14 15)
[ 0.436763] vgaarb: device added:
PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks=none
[ 0.440019] vgaarb: loaded
[ 0.444522] SCSI subsystem initialized
[ 0.448686] PCI: Using ACPI for IRQ routing
[ 0.452646] HPET: 3 timers in total, 0 timers will be used for
per-cpu timer
[ 0.460034] Switching to clocksource tsc
[ 0.464184] pnp: PnP ACPI init
[ 0.467333] ACPI: bus type pnp registered
[ 0.478073] pnp: PnP ACPI: found 13 devices
[ 0.482374] ACPI: ACPI bus type pnp unregistered
[ 0.487096] system 00:01: [io 0x04d0-0x04d1] has been reserved
[ 0.493109] system 00:01: [io 0x0290-0x029f] has been reserved
[ 0.499121] system 00:01: [io 0x0880-0x088f] has been reserved
[ 0.505135] system 00:09: [io 0x0400-0x04bf] could not be reserved
[ 0.511493] system 00:0b: [mem 0xe0000000-0xefffffff] has been reserved
[ 0.518209] system 00:0c: [mem 0x000f0000-0x000fffff] could not be
reserved
[ 0.525260] system 00:0c: [mem 0x7f6e0000-0x7f6fffff] could not be
reserved
[ 0.532314] system 00:0c: [mem 0x00000000-0x0009ffff] could not be
reserved
[ 0.539370] system 00:0c: [mem 0x00100000-0x7f6dffff] could not be
reserved
[ 0.546422] system 00:0c: [mem 0xfec00000-0xfec00fff] could not be
reserved
[ 0.553478] system 00:0c: [mem 0xfed13000-0xfed1dfff] has been reserved
[ 0.561209] system 00:0c: [mem 0xfed20000-0xfed8ffff] has been reserved
[ 0.567914] system 00:0c: [mem 0xfee00000-0xfee00fff] has been reserved
[ 0.574614] system 00:0c: [mem 0xffb00000-0xffb7ffff] has been reserved
[ 0.581323] system 00:0c: [mem 0xfff00000-0xffffffff] has been reserved
[ 0.588030] system 00:0c: [mem 0x000e0000-0x000effff] has been reserved
[ 0.630685] pci 0000:00:1c.0: PCI bridge to [bus 01-01]
[ 0.636008] pci 0000:00:1c.0: bridge window [io 0xb000-0xbfff]
[ 0.642197] pci 0000:00:1c.0: bridge window [mem 0xfd800000-0xfd8fffff]
[ 0.649078] pci 0000:00:1c.0: bridge window [mem
0xfd500000-0xfd5fffff 64bit pref]
[ 0.656965] pci 0000:00:1c.1: PCI bridge to [bus 02-02]
[ 0.662283] pci 0000:00:1c.1: bridge window [io 0xa000-0xafff]
[ 0.668472] pci 0000:00:1c.1: bridge window [mem 0xfde00000-0xfdefffff]
[ 0.675354] pci 0000:00:1c.1: bridge window [mem
0xfdd00000-0xfddfffff 64bit pref]
[ 0.683241] pci 0000:00:1c.2: PCI bridge to [bus 03-03]
[ 0.688550] pci 0000:00:1c.2: bridge window [io 0xe000-0xefff]
[ 0.694732] pci 0000:00:1c.2: bridge window [mem 0xfdc00000-0xfdcfffff]
[ 0.701611] pci 0000:00:1c.2: bridge window [mem
0xfdb00000-0xfdbfffff 64bit pref]
[ 0.709491] pci 0000:00:1c.3: PCI bridge to [bus 04-04]
[ 0.714810] pci 0000:00:1c.3: bridge window [io 0xd000-0xdfff]
[ 0.720998] pci 0000:00:1c.3: bridge window [mem 0xfda00000-0xfdafffff]
[ 0.727880] pci 0000:00:1c.3: bridge window [mem
0xfd900000-0xfd9fffff 64bit pref]
[ 0.735758] pci 0000:00:1e.0: PCI bridge to [bus 05-05]
[ 0.741077] pci 0000:00:1e.0: bridge window [io 0xc000-0xcfff]
[ 0.747259] pci 0000:00:1e.0: bridge window [mem 0xfd700000-0xfd7fffff]
[ 0.754139] pci 0000:00:1e.0: bridge window [mem
0xfd600000-0xfd6fffff 64bit pref]
[ 0.762040] pci 0000:00:1c.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 0.768842] pci 0000:00:1c.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17
[ 0.775643] pci 0000:00:1c.2: PCI INT C -> GSI 18 (level, low) -> IRQ 18
[ 0.782446] pci 0000:00:1c.3: PCI INT D -> GSI 19 (level, low) -> IRQ 19
[ 0.789401] NET: Registered protocol family 2
[ 0.793937] IP route cache hash table entries: 32768 (order: 5,
131072 bytes)
[ 0.801429] TCP established hash table entries: 131072 (order: 8,
1048576 bytes)
[ 0.809719] TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
[ 0.816818] TCP: Hash tables configured (established 131072 bind 65536)
[ 0.823532] TCP reno registered
[ 0.826763] UDP hash table entries: 512 (order: 2, 16384 bytes)
[ 0.832779] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[ 0.839404] NET: Registered protocol family 1
[ 0.844603] Trying to unpack rootfs image as initramfs...
[ 0.955480] Freeing initrd memory: 2844k freed
[ 0.964664] highmem bounce pool size: 64 pages
[ 0.969476] msgmni has been set to 1742
[ 0.973565] Block layer SCSI generic (bsg) driver version 0.4 loaded
(major 253)
[ 0.981101] io scheduler noop registered
[ 0.985113] io scheduler deadline registered
[ 0.989498] io scheduler cfq registered (default)
[ 0.996554] pcieport 0000:00:1c.0: Requesting control of PCIe PME
from ACPI BIOS
[ 1.004136] pcieport 0000:00:1c.0: Failed to receive control of PCIe
PME service: no _OSC support
[ 1.013151] pcie_pme: probe of 0000:00:1c.0:pcie01 failed with error -13
[ 1.019946] pcieport 0000:00:1c.1: Requesting control of PCIe PME
from ACPI BIOS
[ 1.027483] pcieport 0000:00:1c.1: Failed to receive control of PCIe
PME service: no _OSC support
[ 1.036494] pcie_pme: probe of 0000:00:1c.1:pcie01 failed with error -13
[ 1.043292] pcieport 0000:00:1c.2: Requesting control of PCIe PME
from ACPI BIOS
[ 1.050828] pcieport 0000:00:1c.2: Failed to receive control of PCIe
PME service: no _OSC support
[ 1.059841] pcie_pme: probe of 0000:00:1c.2:pcie01 failed with error -13
[ 1.066640] pcieport 0000:00:1c.3: Requesting control of PCIe PME
from ACPI BIOS
[ 1.074168] pcieport 0000:00:1c.3: Failed to receive control of PCIe
PME service: no _OSC support
[ 1.083182] pcie_pme: probe of 0000:00:1c.3:pcie01 failed with error -13
[ 1.096629] isapnp: Scanning for PnP cards...
[ 1.363949] Switched to NOHz mode on CPU #0
[ 1.456976] isapnp: No Plug & Play device found
[ 1.545944] Linux agpgart interface v0.103
[ 1.550622] agpgart-intel 0000:00:00.0: Intel 945GME Chipset
[ 1.556722] agpgart-intel 0000:00:00.0: detected 7932K stolen memory
[ 1.566021] agpgart-intel 0000:00:00.0: AGP aperture is 256M @ 0xd0000000
[ 1.573422] ipmi message handler version 39.2
[ 1.577889] IPMI Watchdog: driver initialized
[ 1.582335] Copyright (C) 2004 MontaVista Software - IPMI Powerdown
via sys_reboot.
[ 1.590130] Serial: 8250/16550 driver, 8 ports, IRQ sharing enabled
[ 1.852142] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[ 2.112139] serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
[ 2.120141] 00:06: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[ 2.126333] 00:07: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
[ 2.140957] brd: module loaded
[ 2.144773] ata_piix 0000:00:1f.1: PCI INT A -> GSI 18 (level, low)
-> IRQ 18
[ 2.152333] scsi0 : ata_piix
[ 2.155527] scsi1 : ata_piix
[ 2.159963] ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0xfa00
irq 14
[ 2.167028] ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0xfa08
irq 15
[ 2.174106] ata_piix 0000:00:1f.2: PCI INT B -> GSI 19 (level, low)
-> IRQ 19
[ 2.181342] ata_piix 0000:00:1f.2: MAP [ P0 P2 -- -- ]
[ 2.340302] scsi2 : ata_piix
[ 2.343434] scsi3 : ata_piix
[ 2.347822] ata3: SATA max UDMA/133 cmd 0xf900 ctl 0xf800 bmdma
0xf500 irq 19
[ 2.355060] ata4: SATA max UDMA/133 cmd 0xf700 ctl 0xf600 bmdma
0xf508 irq 19
[ 2.362707] ata1.00: ATA-10: SanDisk SDCFB-256, HDX 2.15, max MWDMA2
[ 2.369158] ata1.00: 501760 sectors, multi 0: LBA
[ 2.374799] PNP: PS/2 Controller [PNP0303:PS2K] at 0x60,0x64 irq 1
[ 2.381073] PNP: PS/2 appears to have AUX port disabled, if this is
incorrect please boot with i8042.nopnp
[ 2.391218] ata1.00: configured for MWDMA2
[ 2.395597] scsi 0:0:0:0: Direct-Access ATA SanDisk SDCFB-25
HDX PQ: 0 ANSI: 5
[ 2.405066] serio: i8042 KBD port at 0x60,0x64 irq 1
[ 2.410584] sd 0:0:0:0: [sda] 501760 512-byte logical blocks: (256
MB/245 MiB)
[ 2.418134] sd 0:0:0:0: Attached scsi generic sg0 type 0
[ 2.423917] sd 0:0:0:0: [sda] Write Protect is off
[ 2.429182] mice: PS/2 mouse device common for all mice
[ 2.434605] sd 0:0:0:0: [sda] Write cache: disabled, read cache:
enabled, doesn't support DPO or FUA
[ 2.444409] input: PC Speaker as /class/input/input0
[ 2.449738] sda:
[ 2.451675] I2O subsystem v1.325
[ 2.455298] i2o: max drivers = 8
[ 2.458688] sda1 sda2
[ 2.462221] sd 0:0:0:0: [sda] Attached SCSI disk
[ 2.467023] rtc_cmos 00:03: RTC can wake from S4
[ 2.471995] rtc_cmos 00:03: rtc core: registered rtc_cmos as rtc0
[ 2.478228] rtc0: alarms up to one month, 242 bytes nvram, hpet irqs
[ 2.484786] i2c /dev entries driver
[ 2.488736] input: AT Translated Set 2 keyboard as /class/input/input1
[ 2.495409] cpuidle: using governor ladder
[ 2.499604] cpuidle: using governor menu
[ 2.503843] TCP cubic registered
[ 2.507170] NET: Registered protocol family 17
[ 2.511713] Using IPI No-Shortcut mode
[ 2.516471] rtc_cmos 00:03: setting system clock to 2010-07-28
12:24:46 UTC (1280319886)
[ 2.524706] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
[ 2.530799] EDD information not available.
[ 2.557165] ata3.01: ATA-8: FUJITSU MHY2060BH, 0000000C, max UDMA/100
[ 2.563735] ata3.01: 117210240 sectors, multi 16: LBA48 NCQ (depth 0/32)
[ 2.584184] ata3.01: configured for UDMA/100
[ 2.588680] scsi 2:0:1:0: Direct-Access ATA FUJITSU MHY2060B
0000 PQ: 0 ANSI: 5
[ 2.597370] sd 2:0:1:0: [sdb] 117210240 512-byte logical blocks:
(60.0 GB/55.8 GiB)
[ 2.605446] sd 2:0:1:0: Attached scsi generic sg1 type 0
[ 2.611052] sd 2:0:1:0: [sdb] Write Protect is off
[ 2.616039] sd 2:0:1:0: [sdb] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA
[ 2.625494] sdb: sdb1
[ 2.628822] sd 2:0:1:0: [sdb] Attached SCSI disk
[ 2.633543] Freeing unused kernel memory: 336k freed
[ 2.638798] Write protecting the kernel text: 2168k
[ 2.643785] Write protecting the kernel read-only data: 768k
[ 7.809119] input: Power Button as /class/input/input2
[ 7.814568] ACPI: Power Button [PWRB]
[ 7.818460] input: Sleep Button as /class/input/input3
[ 7.823788] ACPI: Sleep Button [SLPB]
[ 7.827713] input: Power Button as /class/input/input4
[ 7.833073] ACPI: Power Button [PWRF]
[ 7.901480] thermal LNXTHERM:00: registered as thermal_zone0
[ 7.907304] ACPI: Thermal Zone [TZ00] (0 C)
[ 8.003149] e1000e: Intel(R) PRO/1000 Network Driver - 1.0.2-k2
[ 8.009178] e1000e: Copyright (c) 1999 - 2009 Intel Corporation.
[ 8.015324] e1000e 0000:01:00.0: PCI INT A -> GSI 16 (level, low) ->
IRQ 16
[ 8.022839] e1000e 0000:01:00.0: Disabling ASPM L0s
[ 8.089334] thermal LNXTHERM:02: registered as thermal_zone1
[ 8.095143] ACPI: Thermal Zone [THRM] (40 C)
[ 8.344983] ACPI: Fan [FAN] (on)
[ 8.418502] usbcore: registered new interface driver usbfs
[ 8.424196] usbcore: registered new interface driver hub
[ 8.463909] 0000:01:00.0: eth0: (PCI Express:2.5GB/s:Width x1)
00:30:18:4c:58:29
[ 8.471470] 0000:01:00.0: eth0: Intel(R) PRO/1000 Network Connection
[ 8.477989] 0000:01:00.0: eth0: MAC: 2, PHY: 2, PBA No: ffffff-0ff
[ 8.484299] e1000e 0000:02:00.0: PCI INT A -> GSI 17 (level, low) ->
IRQ 17
[ 8.492129] e1000e 0000:02:00.0: Disabling ASPM L0s
[ 8.571089] iTCO_vendor_support: vendor-support=0
[ 8.598343] i801_smbus 0000:00:1f.3: PCI INT B -> GSI 19 (level, low)
-> IRQ 19
[ 8.635100] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.05
[ 8.640979] iTCO_wdt: Found a ICH7-M or ICH7-U TCO device (Version=2,
TCOBASE=0x0460)
[ 8.649145] iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
[ 8.746714] usbcore: registered new device driver usb
[ 8.773972] uhci_hcd: USB Universal Host Controller Interface driver
[ 8.780502] uhci_hcd 0000:00:1d.0: PCI INT A -> GSI 23 (level, low)
-> IRQ 23
[ 8.787750] uhci_hcd 0000:00:1d.0: UHCI Host Controller
[ 8.793115] uhci_hcd 0000:00:1d.0: new USB bus registered, assigned
bus number 1
[ 8.800706] uhci_hcd 0000:00:1d.0: irq 23, io base 0x0000fe00
[ 8.806996] hub 1-0:1.0: USB hub found
[ 8.810851] hub 1-0:1.0: 2 ports detected
[ 8.815127] uhci_hcd 0000:00:1d.1: PCI INT B -> GSI 19 (level, low)
-> IRQ 19
[ 8.822366] uhci_hcd 0000:00:1d.1: UHCI Host Controller
[ 8.827701] uhci_hcd 0000:00:1d.1: new USB bus registered, assigned
bus number 2
[ 8.835278] uhci_hcd 0000:00:1d.1: irq 19, io base 0x0000fd00
[ 8.841449] hub 2-0:1.0: USB hub found
[ 8.845303] hub 2-0:1.0: 2 ports detected
[ 8.849570] uhci_hcd 0000:00:1d.2: PCI INT C -> GSI 18 (level, low)
-> IRQ 18
[ 8.856817] uhci_hcd 0000:00:1d.2: UHCI Host Controller
[ 8.862144] uhci_hcd 0000:00:1d.2: new USB bus registered, assigned
bus number 3
[ 8.869732] uhci_hcd 0000:00:1d.2: irq 18, io base 0x0000fc00
[ 8.875895] hub 3-0:1.0: USB hub found
[ 8.879739] hub 3-0:1.0: 2 ports detected
[ 8.884023] uhci_hcd 0000:00:1d.3: PCI INT D -> GSI 16 (level, low)
-> IRQ 16
[ 8.891264] uhci_hcd 0000:00:1d.3: UHCI Host Controller
[ 8.896592] uhci_hcd 0000:00:1d.3: new USB bus registered, assigned
bus number 4
[ 8.904173] uhci_hcd 0000:00:1d.3: irq 16, io base 0x0000fb00
[ 8.910329] hub 4-0:1.0: USB hub found
[ 8.914179] hub 4-0:1.0: 2 ports detected
[ 8.927536] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 8.934199] Warning! ehci_hcd should always be loaded before uhci_hcd
and ohci_hcd, not after
[ 8.942908] ehci_hcd 0000:00:1d.7: PCI INT A -> GSI 23 (level, low)
-> IRQ 23
[ 8.950164] ehci_hcd 0000:00:1d.7: EHCI Host Controller
[ 8.955494] ehci_hcd 0000:00:1d.7: new USB bus registered, assigned
bus number 5
[ 8.963085] ehci_hcd 0000:00:1d.7: using broken periodic workaround
[ 8.969455] ehci_hcd 0000:00:1d.7: debug port 1
[ 8.977982] ehci_hcd 0000:00:1d.7: irq 23, io mem 0xfdfff000
[ 9.085657] ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00
[ 9.091979] hub 5-0:1.0: USB hub found
[ 9.095830] hub 5-0:1.0: 8 ports detected
[ 9.145112] 0000:02:00.0: eth1: (PCI Express:2.5GB/s:Width x1)
00:30:18:4c:58:2a
[ 9.152657] 0000:02:00.0: eth1: Intel(R) PRO/1000 Network Connection
[ 9.159171] 0000:02:00.0: eth1: MAC: 2, PHY: 2, PBA No: ffffff-0ff
[ 9.165482] e1000e 0000:03:00.0: PCI INT A -> GSI 18 (level, low) ->
IRQ 18
[ 9.173311] e1000e 0000:03:00.0: Disabling ASPM L0s
[ 9.297100] 0000:03:00.0: eth2: (PCI Express:2.5GB/s:Width x1)
00:30:18:4c:58:2b
[ 9.304646] 0000:03:00.0: eth2: Intel(R) PRO/1000 Network Connection
[ 9.311162] 0000:03:00.0: eth2: MAC: 2, PHY: 2, PBA No: ffffff-0ff
[ 9.317465] e1000e 0000:04:00.0: PCI INT A -> GSI 19 (level, low) ->
IRQ 19
[ 9.325278] e1000e 0000:04:00.0: Disabling ASPM L0s
[ 9.449062] 0000:04:00.0: eth3: (PCI Express:2.5GB/s:Width x1)
00:30:18:4c:58:2c
[ 9.456608] 0000:04:00.0: eth3: Intel(R) PRO/1000 Network Connection
[ 9.463126] 0000:04:00.0: eth3: MAC: 2, PHY: 2, PBA No: ffffff-0ff
[ 11.762850] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 11.796076] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[ 11.802399] CONFIG_NF_CT_ACCT is deprecated and will be removed soon.
Please use
[ 11.809934] nf_conntrack.acct=1 kernel parameter, acct=1 nf_conntrack
module option or
[ 11.817996] sysctl net.netfilter.nf_conntrack_acct=1 to enable it.
[ 19.430598] Mem-Info:
[ 19.433022] DMA per-cpu:
[ 19.434589] CPU 0: hi: 0, btch: 1 usd: 0
[ 19.434589] Normal per-cpu:
[ 19.434589] CPU 0: hi: 186, btch: 31 usd: 118
[ 19.434589] HighMem per-cpu:
[ 19.434589] CPU 0: hi: 186, btch: 31 usd: 72
[ 19.434589] active_anon:936 inactive_anon:125 isolated_anon:0
[ 19.434589] active_file:1053 inactive_file:1801 isolated_file:0
[ 19.434589] unevictable:0 dirty:0 writeback:0 unstable:0
[ 19.434589] free:509563 slab_reclaimable:627 slab_unreclaimable:1455
[ 19.434589] mapped:621 shmem:203 pagetables:49 bounce:0
[ 19.434589] DMA free:12244kB min:64kB low:80kB high:96kB
active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB
unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15804kB
mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB
slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB
pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0
all_unreclaimable? no
[ 19.434589] lowmem_reserve[]: 0 869 2006 2006
[ 19.434589] Normal free:867296kB min:3736kB low:4668kB high:5604kB
active_anon:0kB inactive_anon:0kB active_file:568kB inactive_file:684kB
unevictable:0kB isolated(anon):0kB isolated(file):0kB present:890008kB
mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB
slab_reclaimable:2508kB slab_unreclaimable:5820kB kernel_stack:328kB
pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0
all_unreclaimable? no
[ 19.434589] lowmem_reserve[]: 0 0 9100 9100
[ 19.434589] HighMem free:1158712kB min:512kB low:1732kB high:2956kB
active_anon:3744kB inactive_anon:500kB active_file:3644kB
inactive_file:6520kB unevictable:0kB isolated(anon):0kB
isolated(file):0kB present:1164912kB mlocked:0kB dirty:0kB writeback:0kB
mapped:2484kB shmem:812kB slab_reclaimable:0kB slab_unreclaimable:0kB
kernel_stack:0kB pagetables:196kB unstable:0kB bounce:0kB
writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[ 19.434589] lowmem_reserve[]: 0 0 0 0
[ 19.434589] DMA: 1*4kB 2*8kB 2*16kB 3*32kB 1*64kB 2*128kB 2*256kB
0*512kB 1*1024kB 1*2048kB 2*4096kB = 12244kB
[ 19.434589] Normal: 0*4kB 14*8kB 9*16kB 5*32kB 1*64kB 4*128kB 2*256kB
3*512kB 2*1024kB 3*2048kB 209*4096kB = 867296kB
[ 19.434589] HighMem: 2*4kB 12*8kB 11*16kB 3*32kB 3*64kB 2*128kB
5*256kB 3*512kB 2*1024kB 1*2048kB 281*4096kB = 1158712kB
[ 19.434589] 3057 total pagecache pages
[ 19.434589] 0 pages in swap cache
[ 19.434589] Swap cache stats: add 0, delete 0, find 0/0
[ 19.434589] Free swap = 0kB
[ 19.434589] Total swap = 0kB
[ 19.434589] BUG: unable to handle kernel paging request at 4c4fe4d8
[ 19.434589] IP: [<c01d8a17>] show_mem+0xbf/0x15c
[ 19.434589] *pdpt = 0000000036d4e001 *pde = 0000000000000000
[ 19.434589] Oops: 0000 [#1] SMP
[ 19.434589] last sysfs file: /sys/kernel/uevent_seqnum
[ 19.434589] Modules linked in: nf_nat_irc nf_nat_ftp ipt_MASQUERADE
ipt_REJECT ipt_REDIRECT xt_state xt_limit ipt_LOG iptable_nat nf_nat
iptable_mangle iptable_filter nf_conntrack_irc nf_conntrack_ftp
nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables x_tables
coretemp ehci_hcd uhci_hcd iTCO_wdt i2c_i801 iTCO_vendor_support usbcore
fan e1000e thermal button processor evdev nls_iso8859_1
[ 19.434589]
[ 19.434589] Pid: 0, comm: swapper Not tainted 2.6.34.1 #27
945GM/E-ITE8712/945GM/E-ITE8712
[ 19.434589] EIP: 0060:[<c01d8a17>] EFLAGS: 00010002 CPU: 0
[ 19.434589] EIP is at show_mem+0xbf/0x15c
[ 19.434589] EAX: 4c4fe4d4 EBX: 000185e4 ECX: 00000001 EDX: c130cc80
[ 19.434589] ESI: 000185d4 EDI: c0407900 EBP: c03dfdc8 ESP: c03dfda8
[ 19.434589] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[ 19.434589] Process swapper (pid: 0, ti=c03de000 task=c03edea0
task.ti=c03de000)
[ 19.434589] Stack:
[ 19.434589] 000185d4 000014e1 0002d8c6 00000000 00000000 f7409cd0
00000046 c03ff203
[ 19.434589] <0> c03dfdd0 c0232949 c03dfddc c0231e78 00000002 c03dfe10
c0233363 f6d34d88
[ 19.434589] <0> 010200b4 f7409cd0 f7409cd0 00000001 00000001 00000000
0000f203 f6cca3f0
[ 19.434589] Call Trace:
[ 19.434589] [<c0232949>] ? fn_show_mem+0x8/0xa
[ 19.434589] [<c0231e78>] ? k_spec+0x33/0x36
[ 19.434589] [<c0233363>] ? kbd_event+0x515/0x57e
[ 19.434589] [<c02817ef>] ? input_pass_event+0x63/0x9e
[ 19.434589] [<c0282a6e>] ? input_handle_event+0x357/0x360
[ 19.434589] [<c0283811>] ? input_event+0x4b/0x5e
[ 19.434589] [<c028661c>] ? atkbd_interrupt+0x45e/0x536
[ 19.434589] [<c027f037>] ? serio_interrupt+0x30/0x66
[ 19.434589] [<c027fe78>] ? i8042_interrupt+0x25e/0x271
[ 19.434589] [<c01314d4>] ? do_timer+0x1b/0x1d
[ 19.434589] [<c014c01d>] ? handle_IRQ_event+0x24/0x9e
[ 19.434589] [<c014d95e>] ? handle_edge_irq+0xb4/0x116
[ 19.434589] [<c010441e>] ? handle_irq+0x1a/0x24
[ 19.434589] [<c0103cc0>] ? do_IRQ+0x40/0x9b
[ 19.434589] [<c0102c29>] ? common_interrupt+0x29/0x30
[ 19.434589] [<c010868f>] ? mwait_idle+0x4c/0x52
[ 19.434589] [<c01018dc>] ? cpu_idle+0x44/0x5d
[ 19.434589] [<c030c906>] ? rest_init+0x62/0x64
[ 19.434589] [<c040c8a9>] ? start_kernel+0x29b/0x2a0
[ 19.434589] [<c040c0b3>] ? i386_start_kernel+0xb3/0xb8
[ 19.434589] Code: c0 09 00 00 75 0c 83 3d e8 e7 47 c0 02 75 03 ff 45
f0 f6 c5 04 74 05 ff 45 e4 eb 3d c1 e9 0f 83 e1 01 75 04 89 d0 eb 03 8b
42 0c <8b> 40 04 48 75 05 ff 45 ec eb 23 85 c9 89 d0 74 03 8b 42 0c 8b
[ 19.434589] EIP: [<c01d8a17>] show_mem+0xbf/0x15c SS:ESP 0068:c03dfda8
[ 19.434589] CR2: 000000004c4fe4d8
[ 19.434589] ---[ end trace 5012c6e90b5dccc6 ]---
[ 19.434589] Kernel panic - not syncing: Fatal exception in interrupt
[ 19.434589] Pid: 0, comm: swapper Tainted: G D 2.6.34.1 #27
[ 19.434589] Call Trace:
[ 19.434589] [<c012912b>] panic+0x3e/0xa8
[ 19.434589] [<c0105093>] oops_end+0x6f/0x7d
[ 19.434589] [<c011957f>] no_context+0x153/0x15d
[ 19.434589] [<c017098e>] ? show_swap_cache_info+0x5e/0x62
[ 19.434589] [<c0119711>] __bad_area_nosemaphore+0xe5/0xed
[ 19.434589] [<c011977d>] bad_area_nosemaphore+0xd/0x10
[ 19.434589] [<c0119a0a>] do_page_fault+0x13c/0x2ea
[ 19.434589] [<c01198ce>] ? do_page_fault+0x0/0x2ea
[ 19.434589] [<c031d196>] error_code+0x66/0x6c
[ 19.434589] [<c01198ce>] ? do_page_fault+0x0/0x2ea
[ 19.434589] [<c01d8a17>] ? show_mem+0xbf/0x15c
[ 19.434589] [<c0232949>] fn_show_mem+0x8/0xa
[ 19.434589] [<c0231e78>] k_spec+0x33/0x36
[ 19.434589] [<c0233363>] kbd_event+0x515/0x57e
[ 19.434589] [<c02817ef>] input_pass_event+0x63/0x9e
[ 19.434589] [<c0282a6e>] input_handle_event+0x357/0x360
[ 19.434589] [<c0283811>] input_event+0x4b/0x5e
[ 19.434589] [<c028661c>] atkbd_interrupt+0x45e/0x536
[ 19.434589] [<c027f037>] serio_interrupt+0x30/0x66
[ 19.434589] [<c027fe78>] i8042_interrupt+0x25e/0x271
[ 19.434589] [<c01314d4>] ? do_timer+0x1b/0x1d
[ 19.434589] [<c014c01d>] handle_IRQ_event+0x24/0x9e
[ 19.434589] [<c014d95e>] handle_edge_irq+0xb4/0x116
[ 19.434589] [<c010441e>] handle_irq+0x1a/0x24
[ 19.434589] [<c0103cc0>] do_IRQ+0x40/0x9b
[ 19.434589] [<c0102c29>] common_interrupt+0x29/0x30
[ 19.434589] [<c010868f>] ? mwait_idle+0x4c/0x52
[ 19.434589] [<c01018dc>] cpu_idle+0x44/0x5d
[ 19.434589] [<c030c906>] rest_init+0x62/0x64
[ 19.434589] [<c040c8a9>] start_kernel+0x29b/0x2a0
[ 19.434589] [<c040c0b3>] i386_start_kernel+0xb3/0xb8
>
> Theory 5
> --------
> What are the consequences of the following message?
>
> pcieport 0000:00:1c.0: Requesting control of PCIe PME from ACPI BIOS
> pcieport 0000:00:1c.0: Failed to receive control of PCIe PME service: no _OSC support
> pcie_pme: probe of 0000:00:1c.0:pcie01 failed with error -13
> pcieport 0000:00:1c.1: Requesting control of PCIe PME from ACPI BIOS
> pcieport 0000:00:1c.1: Failed to receive control of PCIe PME service: no _OSC support
> pcie_pme: probe of 0000:00:1c.1:pcie01 failed with error -13
> pcieport 0000:00:1c.2: Requesting control of PCIe PME from ACPI BIOS
> pcieport 0000:00:1c.2: Failed to receive control of PCIe PME service: no _OSC support
> pcie_pme: probe of 0000:00:1c.2:pcie01 failed with error -13
> pcieport 0000:00:1c.3: Requesting control of PCIe PME from ACPI BIOS
> pcieport 0000:00:1c.3: Failed to receive control of PCIe PME service: no _OSC support
> pcie_pme: probe of 0000:00:1c.3:pcie01 failed with error -13
>
> Is there any possibility when this fails that the device is writing to
> some location in memory thinking the OS has taken proper control of it
> and reserved those physicaly address? (reaching I know, but have to
> eliminate it as a possibility)
Tried aerdriver.forceload=y without success. Suggestions welcome on how
to rule this out.
> Sorry to spread the possibilities all over the place but without a local
> reproduction case, there isn't much to go on yet.
If it helps I can sent or attach the vmlinuz or even complete kernel
build dir
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Bug 16415] New: Show_Memory/Shift-ScrollLock triggers "unable to handle kernel paging request at 00021c6e"
2010-07-28 12:31 ` The Nimble Byte
@ 2010-07-28 15:50 ` Mel Gorman
2010-07-28 21:56 ` Hugh Dickins
0 siblings, 1 reply; 6+ messages in thread
From: Mel Gorman @ 2010-07-28 15:50 UTC (permalink / raw)
To: The Nimble Byte
Cc: Andrew Morton, linux-mm, bugzilla-daemon, Johannes Weiner,
Rafael J. Wysocki, Ingo Molnar, Yinghai Lu
On Wed, Jul 28, 2010 at 02:31:54PM +0200, The Nimble Byte wrote:
> On 27/07/2010 14:54, Mel Gorman wrote
>> BUG: unable to handle kernel paging request at 00021c6e
>>
>> I was unable to reproduce this on qemu at least (my test machines are
>> all occupied). Test case was to force use of highmem (vmalloc=) and
>> mount tmpfs with a swapfile in place. A heavy mix off dd writing to
>> on-disk and tmpfs-files over the course of 15 minutes triggered nothing
>> out of the ordinary. So, whatever is going on here, it's not immediately
>> obvious and so I'm afraid I have to make wild stabs in the dark.
>> Relevant people cc'd.
>
> This bug (activating show_mem) can be reproduced without the dd on
> tmpfs. From a initial ramdisk containing only a shell, some libraries
> and the following init script:
> : #!/bin/sh
> : echo Loading....
> : sleep 60
>
> Pressing shift+scroll lock during the sleep generates an oops at the
> beginning of the show_mem function also. The issue does thereby not seem
> to be related to any of the kernel code compiled as modules. It pretty
> much rules out tmpfs itself.
>
A reasonable assessment.
>> Theory 1
>> --------
>> Can we eliminate bad hardware as an option? What modules are loaded in this
>> machine (lsmod and lspci -v)? Can memtest be run on this machine for a number
>> of hours to eliminate bad memory as a possibility? I recognise that 2.6.12.6
>> was fine on this machine but it's possible that 2.6.34.1 is stressing the
>> machine more for some reason.
>
> The kernel has been run on multiple hardware (similar (not fully
> identical) type though) and memtest86+ has been run for several hours
> without any trouble.
>
Ok.
> $ lspci -v
> :00:00.0 Class 0600: 8086:27ac (rev 03)
No pciutils for translating the vendor codes and ID's?
> : Subsystem: 8086:27ac
> : Flags: bus master, fast devsel, latency 0
> : Capabilities: [e0] #09 [5109]
> :
> :00:02.0 Class 0300: 8086:27ae (rev 03)
> : Subsystem: 8086:27ae
> : Flags: bus master, fast devsel, latency 0, IRQ 16
> : Memory at fdf00000 (32-bit, non-prefetchable) [size=512K]
> : I/O ports at ff00 [size=8]
> : Memory at d0000000 (32-bit, prefetchable) [size=256M]
> : Memory at fdf80000 (32-bit, non-prefetchable) [size=256K]
> : Expansion ROM at <unassigned> [disabled]
> : Capabilities: [90] Message Signalled Interrupts: 64bit- Queue=0/0 Enable-
> : Capabilities: [d0] Power Management version 2
> :
I think this is a "Intel Mobile 945GME Express Integrated Graphics Controller"
which is of some relevance later.
> :00:1b.0 Class 0403: 8086:27d8 (rev 02)
> : Subsystem: 8086:27d8
> : Flags: bus master, fast devsel, latency 0, IRQ 32
> : Memory at fdff8000 (64-bit, non-prefetchable) [size=16K]
> : Capabilities: [50] Power Management version 2
> : Capabilities: [60] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable+
> : Capabilities: [70] #10 [0091]
> :
> :00:1c.0 Class 0604: 8086:27d0 (rev 02)
> : Flags: bus master, fast devsel, latency 0
> : Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
> : I/O behind bridge: 0000b000-0000bfff
> : Memory behind bridge: fd800000-fd8fffff
> : Prefetchable memory behind bridge: 00000000fd500000-00000000fd500000
> : Capabilities: [40] #10 [0141]
> : Capabilities: [80] Message Signalled Interrupts: 64bit- Queue=0/0 Enable+
> : Capabilities: [90] #0d [0000]
> : Capabilities: [a0] Power Management version 2
> :
> :00:1c.1 Class 0604: 8086:27d2 (rev 02)
> : Flags: bus master, fast devsel, latency 0
> : Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
> : I/O behind bridge: 0000a000-0000afff
> : Memory behind bridge: fde00000-fdefffff
> : Prefetchable memory behind bridge: 00000000fdd00000-00000000fdd00000
> : Capabilities: [40] #10 [0141]
> : Capabilities: [80] Message Signalled Interrupts: 64bit- Queue=0/0 Enable+
> : Capabilities: [90] #0d [0000]
> : Capabilities: [a0] Power Management version 2
> :
> :00:1c.2 Class 0604: 8086:27d4 (rev 02)
> : Flags: bus master, fast devsel, latency 0
> : Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
> : I/O behind bridge: 0000e000-0000efff
> : Memory behind bridge: fdc00000-fdcfffff
> : Prefetchable memory behind bridge: 00000000fdb00000-00000000fdb00000
> : Capabilities: [40] #10 [0141]
> : Capabilities: [80] Message Signalled Interrupts: 64bit- Queue=0/0 Enable+
> : Capabilities: [90] #0d [0000]
> : Capabilities: [a0] Power Management version 2
> :
> :00:1c.3 Class 0604: 8086:27d6 (rev 02)
> : Flags: bus master, fast devsel, latency 0
> : Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
> : I/O behind bridge: 0000d000-0000dfff
> : Memory behind bridge: fda00000-fdafffff
> : Prefetchable memory behind bridge: 00000000fd900000-00000000fd900000
> : Capabilities: [40] #10 [0141]
> : Capabilities: [80] Message Signalled Interrupts: 64bit- Queue=0/0 Enable+
> : Capabilities: [90] #0d [0000]
> : Capabilities: [a0] Power Management version 2
> :
> :00:1d.0 Class 0c03: 8086:27c8 (rev 02)
> : Subsystem: 8086:27c8
> : Flags: bus master, medium devsel, latency 0, IRQ 23
> : I/O ports at fe00 [size=32]
> :
> :00:1d.1 Class 0c03: 8086:27c9 (rev 02)
> : Subsystem: 8086:27c9
> : Flags: bus master, medium devsel, latency 0, IRQ 19
> : I/O ports at fd00 [size=32]
> :
> :00:1d.2 Class 0c03: 8086:27ca (rev 02)
> : Subsystem: 8086:27ca
> : Flags: bus master, medium devsel, latency 0, IRQ 18
> : I/O ports at fc00 [size=32]
> :
> :00:1d.3 Class 0c03: 8086:27cb (rev 02)
> : Subsystem: 8086:27cb
> : Flags: bus master, medium devsel, latency 0, IRQ 16
> : I/O ports at fb00 [size=32]
> :
> :00:1d.7 Class 0c03: 8086:27cc (rev 02) (prog-if 20)
> : Subsystem: 8086:27cc
> : Flags: bus master, medium devsel, latency 0, IRQ 23
> : Memory at fdfff000 (32-bit, non-prefetchable) [size=1K]
> : Capabilities: [50] Power Management version 2
> : Capabilities: [58] #0a [20a0]
> :
> :00:1e.0 Class 0604: 8086:2448 (rev e2) (prog-if 01)
> : Flags: bus master, fast devsel, latency 0
> : Bus: primary=00, secondary=05, subordinate=05, sec-latency=32
> : I/O behind bridge: 0000c000-0000cfff
> : Memory behind bridge: fd700000-fd7fffff
> : Prefetchable memory behind bridge: 00000000fd600000-00000000fd600000
> : Capabilities: [50] #0d [0000]
> :
> :00:1f.0 Class 0601: 8086:27b9 (rev 02)
> : Subsystem: 8086:27b9
> : Flags: bus master, medium devsel, latency 0
> : Capabilities: [e0] #09 [100c]
> :
> :00:1f.1 Class 0101: 8086:27df (rev 02) (prog-if 8a [Master SecP PriP])
> : Subsystem: 8086:27df
> : Flags: bus master, medium devsel, latency 0, IRQ 18
> : I/O ports at 01f0 [size=8]
> : I/O ports at 03f4
> : I/O ports at 0170 [size=8]
> : I/O ports at 0374
> : I/O ports at fa00 [size=16]
> :
> :00:1f.2 Class 0101: 8086:27c4 (rev 02) (prog-if 8f [Master SecP SecO
> PriP PriO])
> : Subsystem: 8086:27c4
> : Flags: bus master, 66Mhz, medium devsel, latency 0, IRQ 19
> : I/O ports at f900 [size=8]
> : I/O ports at f800 [size=4]
> : I/O ports at f700 [size=8]
> : I/O ports at f600 [size=4]
> : I/O ports at f500 [size=16]
> : Memory at fdffe000 (32-bit, non-prefetchable) [size=1K]
> : Capabilities: [70] Power Management version 2
> :
> :00:1f.3 Class 0c05: 8086:27da (rev 02)
> : Subsystem: 8086:27da
> : Flags: medium devsel, IRQ 19
> : I/O ports at 0500 [size=32]
> :
> :01:00.0 Class 0200: 8086:109a
> : Subsystem: 8086:0000
> : Flags: bus master, fast devsel, latency 0, IRQ 28
> : Memory at fd8e0000 (32-bit, non-prefetchable) [size=128K]
> : I/O ports at bf00 [size=32]
> : Capabilities: [c8] Power Management version 2
> : Capabilities: [d0] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable+
> : Capabilities: [e0] #10 [0001]
> :
> :02:00.0 Class 0200: 8086:109a
> : Subsystem: 8086:0000
> : Flags: bus master, fast devsel, latency 0, IRQ 29
> : Memory at fdee0000 (32-bit, non-prefetchable) [size=128K]
> : I/O ports at af00 [size=32]
> : Capabilities: [c8] Power Management version 2
> : Capabilities: [d0] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable+
> : Capabilities: [e0] #10 [0001]
> :
> :03:00.0 Class 0200: 8086:109a
> : Subsystem: 8086:0000
> : Flags: bus master, fast devsel, latency 0, IRQ 30
> : Memory at fdce0000 (32-bit, non-prefetchable) [size=128K]
> : I/O ports at ef00 [size=32]
> : Capabilities: [c8] Power Management version 2
> : Capabilities: [d0] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable+
> : Capabilities: [e0] #10 [0001]
> :
> :04:00.0 Class 0200: 8086:109a
> : Subsystem: 8086:0000
> : Flags: bus master, fast devsel, latency 0, IRQ 31
> : Memory at fdae0000 (32-bit, non-prefetchable) [size=128K]
> : I/O ports at df00 [size=32]
> : Capabilities: [c8] Power Management version 2
> : Capabilities: [d0] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable+
> : Capabilities: [e0] #10 [0001]
>
> $ lsmod
> <SNIP, didn't spot anything unusual>
>
>> Theory 2
>> --------
>> To catch early mistakes in the memory model, can the machine be booted with
>> mminit_loglevel=4 and CONFIG_DEBUG_VM set in .config? I am not optimistic
>> this is where the problem is though. If we were making mistakes in early
>> setup, I'd expect a large volume of bug reports on it.
>>
> [ 0.000000] Linux version 2.6.34.1
> (root@doeblin.development.xafax.nl) (gcc version 4.2.4) #26 SMP Wed Jul
There are a few vague reports that gcc
4.2.x were not great for some kernel builds. See
http://www.mail-archive.com/debian-gcc@lists.debian.org/msg25246.html for
example but there were others later such as what is corrected by commit
3730793. I thought they were ironed out but does anyone know if gcc 4.2.4
is a known good gcc version for kernel builds? It worked here but can another
gcc version be tried in case there is some unknown quirk?
> 28 13:24:34 CEST 2010
> [ 0.000000] BIOS-provided physical RAM map:
> [ 0.000000] BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
> [ 0.000000] BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
> [ 0.000000] BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
> [ 0.000000] BIOS-e820: 0000000000100000 - 000000007f690000 (usable)
> [ 0.000000] BIOS-e820: 000000007f690000 - 000000007f6e0000 (reserved)
> [ 0.000000] BIOS-e820: 000000007f6e0000 - 000000007f6e3000 (ACPI NVS)
> [ 0.000000] BIOS-e820: 000000007f6e3000 - 000000007f6f0000 (ACPI data)
> [ 0.000000] BIOS-e820: 000000007f6f0000 - 000000007f700000 (reserved)
> [ 0.000000] BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved)
> [ 0.000000] BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved)
> [ 0.000000] NX (Execute Disable) protection: active
> [ 0.000000] DMI 2.2 present.
> [ 0.000000] Phoenix BIOS detected: BIOS may corrupt low RAM, working around it.
I faked the Phoenix BIOS workaround locally and got nothing so it's not
the reservation itself that is the problem
> [ 0.000000] last_pfn = 0x7f690 max_arch_pfn = 0x1000000
> [ 0.000000] PAT not supported by CPU.
> [ 0.000000] found SMP MP-table at [c00f38d0] f38d0
> [ 0.000000] init_memory_mapping: 0000000000000000-0000000037bfe000
> [ 0.000000] RAMDISK: 37d29000 - 37ff0000
> [ 0.000000] Allocated new RAMDISK: 00493000 - 007596bb
> [ 0.000000] Move RAMDISK from 0000000037d29000 - 0000000037fef6ba to
> 00493000 - 007596ba
Where did this ramdisk come out of? There is no mention of it in your .config
or the boot parameters.
> <SNIP, could not spot anything out of teh ordinary>
> [ 17.182169] BUG: unable to handle kernel paging request at 4c4fe4ad
> [ 17.182169] IP: [<c01d8a07>] show_mem+0xbf/0x15c
In both boot logs, the bad request was very close to 0x4c4fe400. It
doesn't look like any poison pattern but does it look like any sort of
relevant sequence to anyone else? I'm wondering if there is some piece
of hardware writing where it shouldn't similar to what this bug was
about http://lkml.org/lkml/2010/6/6/172 .
The 0x4c4f pattern is very similar to the value for R300_ZB_HIZ_DWORD
which 0x4f4c but the graphics card is an Intel 945GME so that can't be
it.
> <SNIP>
>
>> Theory 3
>> --------
>> I see this message early in boot
>> Phoenix BIOS detected: BIOS may corrupt low RAM, working around it.
>>
>> Is there any possibility that the wrong range of memory is being reserved
>> and in fact the BIOS is screwing with the region of memory memmap is stored in?
>
> Can't be fully ruled out indeed, since during memtest86+ no kernel with
> ACPI loaded has been loaded the BIOS may very well be less active or be
> inactive. And thus not showing any memory changes caused by BIOS RAM
> usage.
Not sure how to eliminate this as a possibility.
>>
>> Theory 4
>> --------
>>
>> with the early boot changes, is there any possibility that bootmem used the
>> low 64K? To test the theory, can the kernel be rebuilt with CONFIG_NO_BOOTMEM
>> *not* set to use the older bootmem logic?
>
> <SNIP, failure looks the same>
>
>>
>> Theory 5
>> --------
>> What are the consequences of the following message?
>>
>> pcieport 0000:00:1c.0: Requesting control of PCIe PME from ACPI BIOS
>> pcieport 0000:00:1c.0: Failed to receive control of PCIe PME service: no _OSC support
>> pcie_pme: probe of 0000:00:1c.0:pcie01 failed with error -13
>> pcieport 0000:00:1c.1: Requesting control of PCIe PME from ACPI BIOS
>> pcieport 0000:00:1c.1: Failed to receive control of PCIe PME service: no _OSC support
>> pcie_pme: probe of 0000:00:1c.1:pcie01 failed with error -13
>> pcieport 0000:00:1c.2: Requesting control of PCIe PME from ACPI BIOS
>> pcieport 0000:00:1c.2: Failed to receive control of PCIe PME service: no _OSC support
>> pcie_pme: probe of 0000:00:1c.2:pcie01 failed with error -13
>> pcieport 0000:00:1c.3: Requesting control of PCIe PME from ACPI BIOS
>> pcieport 0000:00:1c.3: Failed to receive control of PCIe PME service: no _OSC support
>> pcie_pme: probe of 0000:00:1c.3:pcie01 failed with error -13
>>
>> Is there any possibility when this fails that the device is writing to
>> some location in memory thinking the OS has taken proper control of it
>> and reserved those physicaly address? (reaching I know, but have to
>> eliminate it as a possibility)
>
> Tried aerdriver.forceload=y without success. Suggestions welcome on how
> to rule this out.
>
>> Sorry to spread the possibilities all over the place but without a local
>> reproduction case, there isn't much to go on yet.
>
> If it helps I can sent or attach the vmlinuz or even complete kernel
> build dir
>
I'm afraid it won't help me at least. I currently suspect it's some
quirk in the hardware or I'd see something similar under qemu so the
vmlinuz file itself won't tell me anything.
--
Mel Gorman
Part-time Phd Student Linux Technology Center
University of Limerick IBM Dublin Software Lab
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [Bug 16415] New: Show_Memory/Shift-ScrollLock triggers "unable to handle kernel paging request at 00021c6e"
2010-07-28 15:50 ` Mel Gorman
@ 2010-07-28 21:56 ` Hugh Dickins
0 siblings, 0 replies; 6+ messages in thread
From: Hugh Dickins @ 2010-07-28 21:56 UTC (permalink / raw)
To: Mel Gorman
Cc: The Nimble Byte, Andrew Morton, linux-mm, bugzilla-daemon,
Johannes Weiner, Rafael J. Wysocki, Ingo Molnar, Yinghai Lu
On Wed, 28 Jul 2010, Mel Gorman wrote:
> On Wed, Jul 28, 2010 at 02:31:54PM +0200, The Nimble Byte wrote:
> > [ 17.182169] BUG: unable to handle kernel paging request at 4c4fe4ad
> > [ 17.182169] IP: [<c01d8a07>] show_mem+0xbf/0x15c
>
> In both boot logs, the bad request was very close to 0x4c4fe400. It
> doesn't look like any poison pattern but does it look like any sort of
> relevant sequence to anyone else? I'm wondering if there is some piece
> of hardware writing where it shouldn't similar to what this bug was
> about http://lkml.org/lkml/2010/6/6/172 .
This has intrigued me, but I can't spend more time on it.
I doubt whether it's worth trying to interpret the 0x4c4fe4ad etc, I
think just leftover junk from a troubled history. What's much easier
to make sense of is the poison in the sister bug 16416: 0xcc splattered
over a portion of mem_map. Cannot be SLUB_RED_INACTIVE because SLUB is
not configured in, so looks like POISON_FREE_INITMEM.
Yesterday I thought that too unlikely (I'd expect 16416 to be quicker
to reproduce if it really were that); but looking through this latest
on 16415 also points to initmem:
> > [ 0.000000] Linux version 2.6.34.1
> > (root@doeblin.development.xafax.nl) (gcc version 4.2.4) #26 SMP Wed Jul
> > 28 13:24:34 CEST 2010
> > ...
> > [ 0.000000] Subtract (46 early reservations)
> > [ 0.000000] #1 [0000001000 - 0000002000] EX TRAMPOLINE
> > [ 0.000000] #2 [0000100000 - 000048df10] TEXT DATA BSS
> > [ 0.000000] #3 [000048e000 - 00004920a6] BRK
> > ...
> > [ 0.000000] virtual kernel memory layout:
> > ...
> > [ 0.000000] .init : 0xc130c000 - 0xc135f000 ( 332 kB)
> > [ 0.000000] .data : 0xc031dd65 - 0xc040bc80 ( 951 kB)
> > [ 0.000000] .text : 0xc0100000 - 0xc031dd65 (2167 kB)
> > ...
> > [ 17.182169] BUG: unable to handle kernel paging request at 4c4fe4ad
> > [ 17.182169] IP: [<c01d8a07>] show_mem+0xbf/0x15c
> > [ 17.182169] Oops: 0000 [#1] SMP
> > [ 17.182169] Pid: 0, comm: swapper Not tainted 2.6.34.1 #26
> > [ 17.182169] EIP is at show_mem+0xbf/0x15c
> > [ 17.182169] EAX: 4c4fe4a9 EBX: 00018580 ECX: 00000001 EDX: c130c000
> > [ 17.182169] ESI: 00018570 EDI: c0407900 EBP: c03dfdc8 ESP: c03dfda8
That EDX: c130c000 there is show_mem's struct page pointer into mem_map:
and it matches the start of the init area in the virtual kernel memory
layout above. Looks as if we've had the misfortune to allocate mem_map
across an area which soon gets freed as initmem.
When I try to build that .config, my .init follows on immediately from
.data; and as I understand it, should all be included in the reservation
of TEXT DATA BSS. But here there's a significant gap: I suppose that's
either confusing something, or else a symptom of confusion.
I wonder what toolchain the Nimble Byte is using, and a bugzilla
attachment of System.map might be helpful, to see where __init_begin
and __init_end are shown there in relation to other sections.
But over to you guys, I must extricate myself!
Hugh
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^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2010-07-28 21:56 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
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[not found] <bug-16415-27@https.bugzilla.kernel.org/>
2010-07-22 22:34 ` [Bug 16415] New: Show_Memory/Shift-ScrollLock triggers "unable to handle kernel paging request at 00021c6e" Andrew Morton
2010-07-22 22:37 ` Andrew Morton
2010-07-27 12:54 ` Mel Gorman
2010-07-28 12:31 ` The Nimble Byte
2010-07-28 15:50 ` Mel Gorman
2010-07-28 21:56 ` Hugh Dickins
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