From: Thomas Renninger <trenn@suse.de>
To: Yinghai Lu <yinghai@kernel.org>
Cc: horms@verge.net.au, Takao Indoh <indou.takao@jp.fujitsu.com>,
MUNEDA Takahiro <muneda.takahiro@jp.fujitsu.com>,
tokunaga.keiich@jp.fujitsu.com, linux-pci@vger.kernel.org,
x86@kernel.org, kexec@lists.infradead.org,
linux-kernel@vger.kernel.org, hbabu@us.ibm.com,
andi@firstfloor.org, ddutile@redhat.com,
ishii.hironobu@jp.fujitsu.com, "H. Peter Anvin" <hpa@zytor.com>,
bhelgaas@google.com, tglx@linutronix.de, mingo@redhat.com,
vgoyal@redhat.com, khalid@gonehiking.org
Subject: Re: [PATCH] x86 e820: only void usable memory areas in memmap=exactmap case
Date: Tue, 22 Jan 2013 16:21:01 +0100 [thread overview]
Message-ID: <201301221621.02175.trenn@suse.de> (raw)
In-Reply-To: <CAE9FiQUgqRLO4O4HFBC_D5o8TQhnouEaDNq82wdwuu57=OsoZQ@mail.gmail.com>
On Tuesday, January 15, 2013 05:45:43 AM Yinghai Lu wrote:
> On Mon, Jan 14, 2013 at 4:54 PM, Thomas Renninger <trenn@suse.de> wrote:
...
> > From what I can see the patch looks fine, but above part should
> > simply be left out.
>
> then, I would like to rename it to resetusablemap instead.
>
> like attached.
I tried this one out on linux-x86-tip tree on the mm2 branch
This one already had your patch:
x86, mm: Let "memmap=" take more entries one time
and I additionally added:
x86 e820: Check for exactmap appearance when parsing first memmap option
and the one you posted one mail earlier:
x86 e820: Introduce memmap=resetusablemap for kdump usage
I just re-posted your 2 patches also adding some kernel-parameter
documention, subject:
[PATCH 0/2] Only parse exactmap once, introduce memmap=resetusablemap
I adjusted kexec tools to identify the kernel version from the kernel
it loads.
I posted these patches separately, subject (google should find it
pretty soon):
[PATCH 0/3] Make use of new memmap= kernel parameter syntax
for those who are interested in these to:
- make use of comma separated memmap= option
Let "memmap=" take more entries one time
- Do not pass unusable (ACPI or whatever reserved mem) via memmap=x#y
- Do use memmap=resetusablemap instead of memmap=exactmap
in case the kernel to load is of version 3.9 or newer.
Otherwise there is no change.
Unfortunately I cannot see a proper way to backport this.
The only way may be to:
- In the backported kernel inverse the condition to prefer resetusablemap
over exactmap
- In kexec pass both to older kernels: memmap=exactmap memmap=resetusablemap
and all the ACPI reservation memmap= params
I tried this on a somewhat quicker booting machine with quite some more
memmap= params passed by kexec. I reset the machine hard when it started
kdump:
Copying data : [ 20 %]
as I expect that if it comes that far, things work. In both cases the
kernel was dumped:
kexec using new resetusablemap syntax (with kexec debug enabled):
===================================
./build/sbin/kexec -d -p /boot/vmlinuz-3.7.0-rc6-default+ --append="root=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part6 console=tty0
console=ttyS0,57600 sysrq_always_enabled panic=100 ignore_loglevel resume=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part2 apic=verbose debug
vga=normal elevator=deadline sysrq=yes reset_devices irqpoll maxcpus=1 " --initrd=/boot/initrd-3.7.0-rc6-default+-kdump...
Kernel release: 3.7.0-rc6-d in long format: 0x30700
...
root=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part6 console=tty0 console=ttyS0,57600 sysrq_always_enabled panic=100 ignore_loglevel
resume=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part2 apic=verbose debug vga=normal elevator=deadline sysrq=yes reset_devices irqpoll maxcpus=1
memmap=resetusablemap,559K@64K,261560K@638976K elfcorehdr=900536K
...
===================================
important parts of crash kernel log with new syntax:
===================================
[48023.711213] RIP [<ffffffff812f368d>] sysrq_handle_crash+0xd/0x20
[48023.724765] RSP <ffff88042411fe90>
[48023.732539] CR2: 0000000000000000
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 3.7.0-rc6-default+ (trenn@ett) (gcc version 4.5.1 20101208 [gcc-4_5-branch revision 167585] (SUSE Linux) ) #2 SMP Tue Jan 22 01:43:26
CET 2013
[ 0.000000] Command line: root=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part6 console=tty0 console=ttyS0,57600 sysrq_always_enabled panic=100
ignore_loglevel resume=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part2 apic=verbose debug vga=normal elevator=deadline sysrq=yes reset_devices
irqpoll maxcpus=1 memmap=resetusablemap,559K@64K,261560K@638976K elfcorehdr=900536K
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000100-0x000000000009bbff] usable
[ 0.000000] BIOS-e820: [mem 0x000000000009bc00-0x000000000009ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000b93dafff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000b93db000-0x00000000b9454fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000b9455000-0x00000000bb155fff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000bb156000-0x00000000bb166fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000bb167000-0x00000000bb3d7fff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000bb3d8000-0x00000000bb6d8fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bb6d9000-0x00000000bd9fcfff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000bd9fd000-0x00000000bdbfcfff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdbfd000-0x00000000bdcdcfff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000bdcdd000-0x00000000bdde6fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000bdde7000-0x00000000bde8ffff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bde90000-0x00000000bde90fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000bde91000-0x00000000bdf07fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdf08000-0x00000000bdf08fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000bdf09000-0x00000000bdf0afff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdf0b000-0x00000000bdf0bfff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000bdf0c000-0x00000000bdf0cfff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdf0d000-0x00000000bdf23fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000bdf24000-0x00000000bdfb0fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdfb1000-0x00000000bdffffff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000be000000-0x00000000cfffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fed19000-0x00000000fed19fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000ffa20000-0x00000000ffffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000083fffffff] usable
[ 0.000000] debug: ignoring loglevel setting.
[ 0.000000] e820: last_pfn = 0x840000 max_arch_pfn = 0x400000000
[ 0.000000] e820: remove [mem 0x00000000-0xfffffffffffffffe] usable
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] e820: user-defined physical RAM map:
[ 0.000000] user: [mem 0x0000000000010000-0x000000000009bbff] usable
[ 0.000000] user: [mem 0x000000000009bc00-0x000000000009ffff] reserved
[ 0.000000] user: [mem 0x00000000000e0000-0x00000000000fffff] reserved
[ 0.000000] user: [mem 0x0000000027000000-0x0000000036f6dfff] usable
[ 0.000000] user: [mem 0x00000000b93db000-0x00000000b9454fff] ACPI data
[ 0.000000] user: [mem 0x00000000bb156000-0x00000000bb166fff] reserved
[ 0.000000] user: [mem 0x00000000bb3d8000-0x00000000bb6d8fff] ACPI NVS
[ 0.000000] user: [mem 0x00000000bd9fd000-0x00000000bdbfcfff] ACPI NVS
[ 0.000000] user: [mem 0x00000000bdcdd000-0x00000000bdde6fff] reserved
[ 0.000000] user: [mem 0x00000000bdde7000-0x00000000bde8ffff] ACPI NVS
[ 0.000000] user: [mem 0x00000000bde90000-0x00000000bde90fff] ACPI data
[ 0.000000] user: [mem 0x00000000bde91000-0x00000000bdf07fff] ACPI NVS
[ 0.000000] user: [mem 0x00000000bdf08000-0x00000000bdf08fff] ACPI data
[ 0.000000] user: [mem 0x00000000bdf09000-0x00000000bdf0afff] ACPI NVS
[ 0.000000] user: [mem 0x00000000bdf0b000-0x00000000bdf0bfff] ACPI data
[ 0.000000] user: [mem 0x00000000bdf0c000-0x00000000bdf0cfff] ACPI NVS
[ 0.000000] user: [mem 0x00000000bdf0d000-0x00000000bdf23fff] ACPI data
[ 0.000000] user: [mem 0x00000000bdf24000-0x00000000bdfb0fff] ACPI NVS
[ 0.000000] user: [mem 0x00000000be000000-0x00000000cfffffff] reserved
[ 0.000000] user: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
[ 0.000000] user: [mem 0x00000000fed19000-0x00000000fed19fff] reserved
[ 0.000000] user: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved
[ 0.000000] user: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
[ 0.000000] user: [mem 0x00000000ffa20000-0x00000000ffffffff] reserved
[ 0.000000] DMI 2.6 present.
...
[ 2.370015] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xc0000000-0xcfffffff] (base 0xc0000000)
[ 2.390823] PCI: MMCONFIG at [mem 0xc0000000-0xcfffffff] reserved in E820
===================================
===================================
kexec using old exactmap syntax (with kexec debug enabled):
===================================
./build/sbin/kexec -d -p /boot/vmlinuz-3.7.0-rc6-default+ --append="root=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part6 console=tty0
console=ttyS0,57600 sysrq_always_enabled panic=100 ignore_loglevel resume=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part2 apic=verbose debug
vga=normal elevator=deadline sysrq=yes reset_devices irqpoll maxcpus=1 " --initrd=/boot/initrd-3.7.0-rc6-default+-kdump
...
root=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part6 console=tty0 console=ttyS0,57600 sysrq_always_enabled panic=100 igno
re_loglevel resume=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part2 apic=verbose debug vga=normal elevator=deadline sysrq=
yes reset_devices irqpoll maxcpus=1 memmap=exactmap memmap=559K@64K memmap=261560K@638976K elfcorehdr=900536K memmap=488K#3034988K memma
p=3076K#3067744K memmap=2048K#3106804K memmap=676K#3110812K memmap=4K#3111488K memmap=476K#3111492K memmap=4K#3111968K memmap=8K#3111972K
memmap=4K#3111980K memmap=4K#3111984K memmap=92K#3111988K memmap=564K#3112080K
===================================
important parts of crash kernel log with old syntax
(compare unnecessary memmap=x#y additions and the
resulting broken e820 user defined map):
===================================
[ 856.564790] RIP [<ffffffff812f368d>] sysrq_handle_crash+0xd/0x20
[ 856.578345] RSP <ffff880424197e90>
[ 856.586124] CR2: 0000000000000000
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 3.7.0-rc6-default+ (trenn@ett) (gcc version 4.5.1 20101208 [gcc-4_5-branch revision 167585] (SUSE Linux) ) #2 SMP Tue Jan 22 01:43:26
CET 2013
[ 0.000000] Command line: root=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part6 console=tty0 console=ttyS0,57600 sysrq_always_enabled panic=100
ignore_loglevel resume=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part2 apic=verbose debug vga=normal elevator=deadline sysrq=yes reset_devices
irqpoll maxcpus=1 memmap=exactmap memmap=559K@64K memmap=261560K@638976K elfcorehdr=900536K memmap=488K#3034988K memmap=3076K#3067744K memmap=2048K#3106804K
memmap=676K#3110812K memmap=4K#3111488K memmap=476K#3111492K memmap=4K#3111968K memmap=8K#3111972K memmap=4K#3111980K memmap=4K#3111984K memmap=92K#3111988K
memmap=564K#3112080K
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000100-0x000000000009bbff] usable
[ 0.000000] BIOS-e820: [mem 0x000000000009bc00-0x000000000009ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000b93dafff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000b93db000-0x00000000b9454fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000b9455000-0x00000000bb155fff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000bb156000-0x00000000bb166fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000bb167000-0x00000000bb3d7fff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000bb3d8000-0x00000000bb6d8fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bb6d9000-0x00000000bd9fcfff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000bd9fd000-0x00000000bdbfcfff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdbfd000-0x00000000bdcdcfff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000bdcdd000-0x00000000bdde6fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000bdde7000-0x00000000bde8ffff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bde90000-0x00000000bde90fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000bde91000-0x00000000bdf07fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdf08000-0x00000000bdf08fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000bdf09000-0x00000000bdf0afff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdf0b000-0x00000000bdf0bfff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000bdf0c000-0x00000000bdf0cfff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdf0d000-0x00000000bdf23fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000bdf24000-0x00000000bdfb0fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdfb1000-0x00000000bdffffff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000be000000-0x00000000cfffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fed19000-0x00000000fed19fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000ffa20000-0x00000000ffffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000083fffffff] usable
[ 0.000000] debug: ignoring loglevel setting.
[ 0.000000] e820: last_pfn = 0x840000 max_arch_pfn = 0x400000000
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] e820: user-defined physical RAM map:
[ 0.000000] user: [mem 0x0000000000010000-0x000000000009bbff] usable
[ 0.000000] user: [mem 0x0000000027000000-0x0000000036f6dfff] usable
[ 0.000000] user: [mem 0x00000000b93db000-0x00000000b9454fff] ACPI data
[ 0.000000] user: [mem 0x00000000bb3d8000-0x00000000bb6d8fff] ACPI data
[ 0.000000] user: [mem 0x00000000bd9fd000-0x00000000bdbfcfff] ACPI data
[ 0.000000] user: [mem 0x00000000bdde7000-0x00000000bdfb0fff] ACPI data
[ 0.000000] DMI 2.6 present.
...
[ 2.264005] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xc0000000-0xcfffffff] (base 0xc0000000)
[ 2.284811] PCI: not using MMCONFIG
===================================
Thomas
_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec
WARNING: multiple messages have this Message-ID (diff)
From: Thomas Renninger <trenn@suse.de>
To: Yinghai Lu <yinghai@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>,
MUNEDA Takahiro <muneda.takahiro@jp.fujitsu.com>,
Takao Indoh <indou.takao@jp.fujitsu.com>,
linux-pci@vger.kernel.org, x86@kernel.org,
linux-kernel@vger.kernel.org, andi@firstfloor.org,
tokunaga.keiich@jp.fujitsu.com, kexec@lists.infradead.org,
hbabu@us.ibm.com, mingo@redhat.com, ddutile@redhat.com,
vgoyal@redhat.com, ishii.hironobu@jp.fujitsu.com,
bhelgaas@google.com, tglx@linutronix.de, khalid@gonehiking.org,
horms@verge.net.au
Subject: Re: [PATCH] x86 e820: only void usable memory areas in memmap=exactmap case
Date: Tue, 22 Jan 2013 16:21:01 +0100 [thread overview]
Message-ID: <201301221621.02175.trenn@suse.de> (raw)
In-Reply-To: <CAE9FiQUgqRLO4O4HFBC_D5o8TQhnouEaDNq82wdwuu57=OsoZQ@mail.gmail.com>
On Tuesday, January 15, 2013 05:45:43 AM Yinghai Lu wrote:
> On Mon, Jan 14, 2013 at 4:54 PM, Thomas Renninger <trenn@suse.de> wrote:
...
> > From what I can see the patch looks fine, but above part should
> > simply be left out.
>
> then, I would like to rename it to resetusablemap instead.
>
> like attached.
I tried this one out on linux-x86-tip tree on the mm2 branch
This one already had your patch:
x86, mm: Let "memmap=" take more entries one time
and I additionally added:
x86 e820: Check for exactmap appearance when parsing first memmap option
and the one you posted one mail earlier:
x86 e820: Introduce memmap=resetusablemap for kdump usage
I just re-posted your 2 patches also adding some kernel-parameter
documention, subject:
[PATCH 0/2] Only parse exactmap once, introduce memmap=resetusablemap
I adjusted kexec tools to identify the kernel version from the kernel
it loads.
I posted these patches separately, subject (google should find it
pretty soon):
[PATCH 0/3] Make use of new memmap= kernel parameter syntax
for those who are interested in these to:
- make use of comma separated memmap= option
Let "memmap=" take more entries one time
- Do not pass unusable (ACPI or whatever reserved mem) via memmap=x#y
- Do use memmap=resetusablemap instead of memmap=exactmap
in case the kernel to load is of version 3.9 or newer.
Otherwise there is no change.
Unfortunately I cannot see a proper way to backport this.
The only way may be to:
- In the backported kernel inverse the condition to prefer resetusablemap
over exactmap
- In kexec pass both to older kernels: memmap=exactmap memmap=resetusablemap
and all the ACPI reservation memmap= params
I tried this on a somewhat quicker booting machine with quite some more
memmap= params passed by kexec. I reset the machine hard when it started
kdump:
Copying data : [ 20 %]
as I expect that if it comes that far, things work. In both cases the
kernel was dumped:
kexec using new resetusablemap syntax (with kexec debug enabled):
===================================
./build/sbin/kexec -d -p /boot/vmlinuz-3.7.0-rc6-default+ --append="root=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part6 console=tty0
console=ttyS0,57600 sysrq_always_enabled panic=100 ignore_loglevel resume=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part2 apic=verbose debug
vga=normal elevator=deadline sysrq=yes reset_devices irqpoll maxcpus=1 " --initrd=/boot/initrd-3.7.0-rc6-default+-kdump...
Kernel release: 3.7.0-rc6-d in long format: 0x30700
...
root=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part6 console=tty0 console=ttyS0,57600 sysrq_always_enabled panic=100 ignore_loglevel
resume=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part2 apic=verbose debug vga=normal elevator=deadline sysrq=yes reset_devices irqpoll maxcpus=1
memmap=resetusablemap,559K@64K,261560K@638976K elfcorehdr=900536K
...
===================================
important parts of crash kernel log with new syntax:
===================================
[48023.711213] RIP [<ffffffff812f368d>] sysrq_handle_crash+0xd/0x20
[48023.724765] RSP <ffff88042411fe90>
[48023.732539] CR2: 0000000000000000
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 3.7.0-rc6-default+ (trenn@ett) (gcc version 4.5.1 20101208 [gcc-4_5-branch revision 167585] (SUSE Linux) ) #2 SMP Tue Jan 22 01:43:26
CET 2013
[ 0.000000] Command line: root=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part6 console=tty0 console=ttyS0,57600 sysrq_always_enabled panic=100
ignore_loglevel resume=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part2 apic=verbose debug vga=normal elevator=deadline sysrq=yes reset_devices
irqpoll maxcpus=1 memmap=resetusablemap,559K@64K,261560K@638976K elfcorehdr=900536K
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000100-0x000000000009bbff] usable
[ 0.000000] BIOS-e820: [mem 0x000000000009bc00-0x000000000009ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000b93dafff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000b93db000-0x00000000b9454fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000b9455000-0x00000000bb155fff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000bb156000-0x00000000bb166fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000bb167000-0x00000000bb3d7fff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000bb3d8000-0x00000000bb6d8fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bb6d9000-0x00000000bd9fcfff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000bd9fd000-0x00000000bdbfcfff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdbfd000-0x00000000bdcdcfff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000bdcdd000-0x00000000bdde6fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000bdde7000-0x00000000bde8ffff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bde90000-0x00000000bde90fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000bde91000-0x00000000bdf07fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdf08000-0x00000000bdf08fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000bdf09000-0x00000000bdf0afff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdf0b000-0x00000000bdf0bfff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000bdf0c000-0x00000000bdf0cfff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdf0d000-0x00000000bdf23fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000bdf24000-0x00000000bdfb0fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdfb1000-0x00000000bdffffff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000be000000-0x00000000cfffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fed19000-0x00000000fed19fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000ffa20000-0x00000000ffffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000083fffffff] usable
[ 0.000000] debug: ignoring loglevel setting.
[ 0.000000] e820: last_pfn = 0x840000 max_arch_pfn = 0x400000000
[ 0.000000] e820: remove [mem 0x00000000-0xfffffffffffffffe] usable
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] e820: user-defined physical RAM map:
[ 0.000000] user: [mem 0x0000000000010000-0x000000000009bbff] usable
[ 0.000000] user: [mem 0x000000000009bc00-0x000000000009ffff] reserved
[ 0.000000] user: [mem 0x00000000000e0000-0x00000000000fffff] reserved
[ 0.000000] user: [mem 0x0000000027000000-0x0000000036f6dfff] usable
[ 0.000000] user: [mem 0x00000000b93db000-0x00000000b9454fff] ACPI data
[ 0.000000] user: [mem 0x00000000bb156000-0x00000000bb166fff] reserved
[ 0.000000] user: [mem 0x00000000bb3d8000-0x00000000bb6d8fff] ACPI NVS
[ 0.000000] user: [mem 0x00000000bd9fd000-0x00000000bdbfcfff] ACPI NVS
[ 0.000000] user: [mem 0x00000000bdcdd000-0x00000000bdde6fff] reserved
[ 0.000000] user: [mem 0x00000000bdde7000-0x00000000bde8ffff] ACPI NVS
[ 0.000000] user: [mem 0x00000000bde90000-0x00000000bde90fff] ACPI data
[ 0.000000] user: [mem 0x00000000bde91000-0x00000000bdf07fff] ACPI NVS
[ 0.000000] user: [mem 0x00000000bdf08000-0x00000000bdf08fff] ACPI data
[ 0.000000] user: [mem 0x00000000bdf09000-0x00000000bdf0afff] ACPI NVS
[ 0.000000] user: [mem 0x00000000bdf0b000-0x00000000bdf0bfff] ACPI data
[ 0.000000] user: [mem 0x00000000bdf0c000-0x00000000bdf0cfff] ACPI NVS
[ 0.000000] user: [mem 0x00000000bdf0d000-0x00000000bdf23fff] ACPI data
[ 0.000000] user: [mem 0x00000000bdf24000-0x00000000bdfb0fff] ACPI NVS
[ 0.000000] user: [mem 0x00000000be000000-0x00000000cfffffff] reserved
[ 0.000000] user: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
[ 0.000000] user: [mem 0x00000000fed19000-0x00000000fed19fff] reserved
[ 0.000000] user: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved
[ 0.000000] user: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
[ 0.000000] user: [mem 0x00000000ffa20000-0x00000000ffffffff] reserved
[ 0.000000] DMI 2.6 present.
...
[ 2.370015] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xc0000000-0xcfffffff] (base 0xc0000000)
[ 2.390823] PCI: MMCONFIG at [mem 0xc0000000-0xcfffffff] reserved in E820
===================================
===================================
kexec using old exactmap syntax (with kexec debug enabled):
===================================
./build/sbin/kexec -d -p /boot/vmlinuz-3.7.0-rc6-default+ --append="root=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part6 console=tty0
console=ttyS0,57600 sysrq_always_enabled panic=100 ignore_loglevel resume=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part2 apic=verbose debug
vga=normal elevator=deadline sysrq=yes reset_devices irqpoll maxcpus=1 " --initrd=/boot/initrd-3.7.0-rc6-default+-kdump
...
root=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part6 console=tty0 console=ttyS0,57600 sysrq_always_enabled panic=100 igno
re_loglevel resume=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part2 apic=verbose debug vga=normal elevator=deadline sysrq=
yes reset_devices irqpoll maxcpus=1 memmap=exactmap memmap=559K@64K memmap=261560K@638976K elfcorehdr=900536K memmap=488K#3034988K memma
p=3076K#3067744K memmap=2048K#3106804K memmap=676K#3110812K memmap=4K#3111488K memmap=476K#3111492K memmap=4K#3111968K memmap=8K#3111972K
memmap=4K#3111980K memmap=4K#3111984K memmap=92K#3111988K memmap=564K#3112080K
===================================
important parts of crash kernel log with old syntax
(compare unnecessary memmap=x#y additions and the
resulting broken e820 user defined map):
===================================
[ 856.564790] RIP [<ffffffff812f368d>] sysrq_handle_crash+0xd/0x20
[ 856.578345] RSP <ffff880424197e90>
[ 856.586124] CR2: 0000000000000000
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 3.7.0-rc6-default+ (trenn@ett) (gcc version 4.5.1 20101208 [gcc-4_5-branch revision 167585] (SUSE Linux) ) #2 SMP Tue Jan 22 01:43:26
CET 2013
[ 0.000000] Command line: root=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part6 console=tty0 console=ttyS0,57600 sysrq_always_enabled panic=100
ignore_loglevel resume=/dev/disk/by-id/ata-Hitachi_HDS721016CLA382_JPAB40HM2KUK6B-part2 apic=verbose debug vga=normal elevator=deadline sysrq=yes reset_devices
irqpoll maxcpus=1 memmap=exactmap memmap=559K@64K memmap=261560K@638976K elfcorehdr=900536K memmap=488K#3034988K memmap=3076K#3067744K memmap=2048K#3106804K
memmap=676K#3110812K memmap=4K#3111488K memmap=476K#3111492K memmap=4K#3111968K memmap=8K#3111972K memmap=4K#3111980K memmap=4K#3111984K memmap=92K#3111988K
memmap=564K#3112080K
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] BIOS-e820: [mem 0x0000000000000100-0x000000000009bbff] usable
[ 0.000000] BIOS-e820: [mem 0x000000000009bc00-0x000000000009ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000b93dafff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000b93db000-0x00000000b9454fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000b9455000-0x00000000bb155fff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000bb156000-0x00000000bb166fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000bb167000-0x00000000bb3d7fff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000bb3d8000-0x00000000bb6d8fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bb6d9000-0x00000000bd9fcfff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000bd9fd000-0x00000000bdbfcfff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdbfd000-0x00000000bdcdcfff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000bdcdd000-0x00000000bdde6fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000bdde7000-0x00000000bde8ffff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bde90000-0x00000000bde90fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000bde91000-0x00000000bdf07fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdf08000-0x00000000bdf08fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000bdf09000-0x00000000bdf0afff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdf0b000-0x00000000bdf0bfff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000bdf0c000-0x00000000bdf0cfff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdf0d000-0x00000000bdf23fff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000bdf24000-0x00000000bdfb0fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000bdfb1000-0x00000000bdffffff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000be000000-0x00000000cfffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fed19000-0x00000000fed19fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000ffa20000-0x00000000ffffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000083fffffff] usable
[ 0.000000] debug: ignoring loglevel setting.
[ 0.000000] e820: last_pfn = 0x840000 max_arch_pfn = 0x400000000
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] e820: user-defined physical RAM map:
[ 0.000000] user: [mem 0x0000000000010000-0x000000000009bbff] usable
[ 0.000000] user: [mem 0x0000000027000000-0x0000000036f6dfff] usable
[ 0.000000] user: [mem 0x00000000b93db000-0x00000000b9454fff] ACPI data
[ 0.000000] user: [mem 0x00000000bb3d8000-0x00000000bb6d8fff] ACPI data
[ 0.000000] user: [mem 0x00000000bd9fd000-0x00000000bdbfcfff] ACPI data
[ 0.000000] user: [mem 0x00000000bdde7000-0x00000000bdfb0fff] ACPI data
[ 0.000000] DMI 2.6 present.
...
[ 2.264005] PCI: MMCONFIG for domain 0000 [bus 00-ff] at [mem 0xc0000000-0xcfffffff] (base 0xc0000000)
[ 2.284811] PCI: not using MMCONFIG
===================================
Thomas
next prev parent reply other threads:[~2013-01-22 15:21 UTC|newest]
Thread overview: 98+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-27 0:42 [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu Takao Indoh
2012-11-27 0:42 ` Takao Indoh
2012-11-27 0:42 ` [PATCH v7 1/5] x86, pci: add dummy pci device for early stage Takao Indoh
2012-11-27 0:42 ` Takao Indoh
2012-11-27 0:42 ` [PATCH v7 2/5] PCI: Define the maximum number of PCI function Takao Indoh
2012-11-27 0:42 ` Takao Indoh
2012-11-27 0:42 ` [PATCH v7 3/5] Make reset_devices available at early stage Takao Indoh
2012-11-27 0:42 ` Takao Indoh
2012-11-27 0:43 ` [PATCH v7 4/5] x86, pci: Reset PCIe devices at boot time Takao Indoh
2012-11-27 0:43 ` Takao Indoh
2012-11-27 0:43 ` [PATCH v7 5/5] x86, pci: Enable PCI INTx when MSI is disabled Takao Indoh
2012-11-27 0:43 ` Takao Indoh
2012-11-30 15:49 ` [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu MUNEDA Takahiro
2012-11-30 15:49 ` MUNEDA Takahiro
2012-12-21 16:19 ` Yinghai Lu
2012-12-21 16:19 ` Yinghai Lu
2013-01-07 19:09 ` Thomas Renninger
2013-01-07 19:09 ` Thomas Renninger
2013-01-07 20:16 ` Yinghai Lu
2013-01-07 20:16 ` Yinghai Lu
2013-01-08 0:42 ` Thomas Renninger
2013-01-08 0:42 ` Thomas Renninger
2013-01-08 3:04 ` Yinghai Lu
2013-01-08 3:04 ` Yinghai Lu
2013-01-08 16:47 ` [PATCH] Only reset e820 once, even with multiple memmap=exactmap params Thomas Renninger
2013-01-08 16:47 ` Thomas Renninger
2013-01-08 17:19 ` Yinghai Lu
2013-01-08 17:19 ` Yinghai Lu
2013-01-10 3:21 ` Thomas Renninger
2013-01-10 3:21 ` Thomas Renninger
2013-01-10 14:26 ` Vivek Goyal
2013-01-10 14:26 ` Vivek Goyal
2013-01-10 16:53 ` Yinghai Lu
2013-01-10 16:53 ` Yinghai Lu
2013-01-10 17:01 ` Vivek Goyal
2013-01-10 17:01 ` Vivek Goyal
2013-01-10 17:11 ` Yinghai Lu
2013-01-10 17:11 ` Yinghai Lu
2013-01-10 23:34 ` Yinghai Lu
2013-01-11 12:33 ` [PATCH] x86 e820: only void usable memory areas in memmap=exactmap case Thomas Renninger
2013-01-11 12:33 ` Thomas Renninger
2013-01-11 16:16 ` Yinghai Lu
2013-01-11 16:16 ` Yinghai Lu
2013-01-11 18:24 ` Thomas Renninger
2013-01-11 18:24 ` Thomas Renninger
2013-01-11 19:59 ` Yinghai Lu
2013-01-11 19:59 ` Yinghai Lu
2013-01-11 20:06 ` H. Peter Anvin
2013-01-11 20:06 ` H. Peter Anvin
2013-01-11 21:09 ` Yinghai Lu
2013-01-11 21:09 ` Yinghai Lu
2013-01-11 22:16 ` H. Peter Anvin
2013-01-11 22:16 ` H. Peter Anvin
2013-01-12 11:31 ` Thomas Renninger
2013-01-12 11:31 ` Thomas Renninger
2013-01-12 17:07 ` Yinghai Lu
2013-01-12 17:07 ` Yinghai Lu
2013-01-14 2:08 ` Thomas Renninger
2013-01-14 2:08 ` Thomas Renninger
2013-01-14 2:43 ` Yinghai Lu
2013-01-14 2:43 ` Yinghai Lu
2013-01-14 15:05 ` Thomas Renninger
2013-01-14 15:05 ` Thomas Renninger
2013-01-14 19:04 ` Yinghai Lu
2013-01-14 19:04 ` Yinghai Lu
2013-01-15 0:54 ` Thomas Renninger
2013-01-15 0:54 ` Thomas Renninger
2013-01-15 4:45 ` Yinghai Lu
2013-01-15 4:45 ` Yinghai Lu
2013-01-22 15:21 ` Thomas Renninger [this message]
2013-01-22 15:21 ` Thomas Renninger
2013-01-08 16:50 ` [PATCH v7 0/5] Reset PCIe devices to address DMA problem on kdump with iommu Thomas Renninger
2013-01-08 16:50 ` Thomas Renninger
2013-01-08 17:27 ` Yinghai Lu
2013-01-08 17:27 ` Yinghai Lu
2013-01-09 2:32 ` Thomas Renninger
2013-01-09 2:32 ` Thomas Renninger
2013-01-09 4:39 ` Takao Indoh
2013-01-09 4:39 ` Takao Indoh
2013-01-21 1:11 ` Takao Indoh
2013-01-21 1:11 ` Takao Indoh
2013-01-23 0:47 ` Thomas Renninger
2013-01-23 0:47 ` Thomas Renninger
2013-01-24 0:23 ` Takao Indoh
2013-01-24 0:23 ` Takao Indoh
2013-01-29 1:14 ` Thomas Renninger
2013-01-29 1:14 ` Thomas Renninger
2013-01-30 5:01 ` Takao Indoh
2013-01-30 5:01 ` Takao Indoh
2013-03-04 0:56 ` Takao Indoh
2013-03-04 0:56 ` Takao Indoh
2013-03-04 22:00 ` Don Dutile
2013-03-04 22:00 ` Don Dutile
2013-03-05 0:56 ` Takao Indoh
2013-03-05 0:56 ` Takao Indoh
2012-12-21 9:59 ` oliver yang
2012-12-21 10:37 ` Takao Indoh
2012-12-21 10:37 ` Takao Indoh
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