On Thu, Feb 08, 2007 at 12:21:02PM +0800, Zou Nan hai wrote: > On Thu, 2007-02-08 at 13:34, Vivek Goyal wrote: > > On Thu, Feb 08, 2007 at 12:06:53PM +0900, Horms wrote: > > > On Thu, Feb 08, 2007 at 10:07:48AM +0800, Zou, Nanhai wrote: > > > > > > > > When crash dump kernel tries to access memory of first kernel > > > > above saved_max_pfn of him, read_from_oldmem will refuse that > > > > read. > > > > > > > > That result an empty vmcore file. change saved_max_pfn to > > > > unsigned long(-1) will fix this issue. > > > > > > > > However since memory ranges in vmcore is pre defined from > > > > /proc/iomem of first kernel, why do we still need to add an > > > > extra check in vmcore.c > > > > > > Hi Nan-hai, > > > > > > sorry that I did not get back to you about the information you > > > requested about my system, I guess you have managed to reproduce > > > the problem none the less. > > > > > > I can confirm that removing the max_pfn check in vmcore.c does > > > indeed give /proc/vmcore a non-zero (and presumably correct) size. > > > > > > I wonder if the problem is that saved_max_pfn is being incorectly > > > calculated on ia64. That it is being set to the max_pfn of the > > > crash kernel (i.e. in the crashkernel=X@Y area), rather than the > > > max_pfn of the physical memory of the system, which seems more > > > sensible as the purpose of vmcore is to read memory outside of the > > > crashkernel=X@Y area. > > > > > > > Hi Horms/Nan-hai, > > > > Horms, you are right. saved_max_pfn is needed to know that second > > kernel is not trying to read any memory which is not present or was > > not being used by the crashed kernel at all. That's why in > > i386/x86_64, during early boot saved_max_pfn, is calculated the > > memory map passed to the second kernel. This memory map is passed to > > second kernel by kexec through parameter segment. So effectively > > saved_max_pfn will be set to max_pfn of crashed kernel. > > > > Now this memory map is overwritten with user defined one which is > > basically the memory second kernel can use to boot and max_pfn now > > will be maximum pfn crash kernel can use. > > > > > You may be right that we can just remove the check all together, > > > though perhaps it is there for the case where the range > > > information in the vmcode are corrupted. Then again, should we > > > care about this? > > > > I think we should not remove this check because even to parse the > > info passed in ELF headers, you need to first read the ELF headers > > from crashed kernel's memory. So if some programming error has > > passed wrong location of ELF headers (elfcoreheader= invalid > > location) then we might try reading the elf header from a > > non-existing physical page frame. > > > > So the right way should be to set saved_max_pfn with right value > > before it is memory map is over-written with user defined memory > > map. > > > This is reasonable. > So please apply the following patch to make > saved_max_pfn point to max_pfn of entire system. Hi Nanhai, Although I agree with the gist of your patch, unfortunately it does not work on my system. Perhaps this is because I use discontig memory, perhaps its todo with my map. But in any case /proc/vmcore remains zero. read_from_oldmem: error: pfn (32761) > saved_max_pfn (31744) Kdump: vmcore not initialized Below is your patch rediffed for Linus latest tree. And below that is the boot log for my first and crash kernels, including the EFI map. Let me know if you need some more information or would like me to run any additional tests. -- Horms H: http://www.vergenet.net/~horms/ W: http://www.valinux.co.jp/en/ Please apply the following patch to make saved_max_pfn point to max_pfn of entire system. Signed-off-by: Zou Nan hai <nanhai.zou@xxxxxxxxx> Updated for recent changes in Linus' tree. But it doesn't seem to work as desired on my system :( Nacked-by: Simon Horman <horms@xxxxxxxxxxxx> Index: linux-2.6/arch/ia64/kernel/efi.c =================================================================== --- linux-2.6.orig/arch/ia64/kernel/efi.c 2007-02-08 16:06:02.000000000 +0900 +++ linux-2.6/arch/ia64/kernel/efi.c 2007-02-08 16:06:40.000000000 +0900 @@ -21,6 +21,7 @@ * Skip non-WB memory and ignore empty memory ranges. */ #include <linux/module.h> +#include <linux/bootmem.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/types.h> @@ -1010,6 +1011,11 @@ } else ae = efi_md_end(md); +#ifdef CONFIG_CRASH_DUMP + /* saved_max_pfn should ignore max_addr= command line arg */ + if (saved_max_pfn < (ae >> PAGE_SHIFT)) + saved_max_pfn = (ae >> PAGE_SHIFT); +#endif /* keep within max_addr= and min_addr= command line arg */ as = max(as, min_addr); ae = min(ae, max_addr); Index: linux-2.6/arch/ia64/mm/contig.c =================================================================== --- linux-2.6.orig/arch/ia64/mm/contig.c 2007-02-08 16:06:02.000000000 +0900 +++ linux-2.6/arch/ia64/mm/contig.c 2007-02-08 16:06:40.000000000 +0900 @@ -197,11 +197,6 @@ find_initrd(); -#ifdef CONFIG_CRASH_DUMP - /* If we are doing a crash dump, we still need to know the real mem - * size before original memory map is reset. */ - saved_max_pfn = max_pfn; -#endif } #ifdef CONFIG_SMP Index: linux-2.6/arch/ia64/mm/discontig.c =================================================================== --- linux-2.6.orig/arch/ia64/mm/discontig.c 2007-02-08 16:06:23.000000000 +0900 +++ linux-2.6/arch/ia64/mm/discontig.c 2007-02-08 16:06:40.000000000 +0900 @@ -478,12 +478,6 @@ max_pfn = max_low_pfn; find_initrd(); - -#ifdef CONFIG_CRASH_DUMP - /* If we are doing a crash dump, we still need to know the real mem - * size before original memory map is reset. */ - saved_max_pfn = max_pfn; -#endif } #ifdef CONFIG_SMP ELILO Uncompressing Linux... done Loading initrd people/horms/initramfs_data.cpio.gz...done Linux version 2.6.20-kexec-g5331be09-dirty (horms@xxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 3.4.5) #18 Thu Feb 8 16:26:47 JST 2007 EFI v1.10 by INTEL: SALsystab=0x7fe54980 ACPI=0x7ff99000 ACPI 2.0=0x7ff98000 MPS=0x7ff97000 SMBIOS=0xf0000 mem00: type=4, attr=0x9, range=[0x0000000000000000-0x0000000000001000) (0MB) mem01: type=7, attr=0x9, range=[0x0000000000001000-0x0000000000007000) (0MB) mem02: type=4, attr=0x9, range=[0x0000000000007000-0x0000000000009000) (0MB) mem03: type=7, attr=0x9, range=[0x0000000000009000-0x0000000000082000) (0MB) mem04: type=6, attr=0x8000000000000009, range=[0x0000000000082000-0x0000000000084000) (0MB) mem05: type=7, attr=0x9, range=[0x0000000000084000-0x0000000000085000) (0MB) mem06: type=4, attr=0x9, range=[0x0000000000085000-0x00000000000a0000) (0MB) mem07: type=5, attr=0x8000000000000009, range=[0x00000000000c0000-0x0000000000100000) (0MB) mem08: type=7, attr=0xb, range=[0x0000000000100000-0x0000000004000000) (63MB) mem09: type=2, attr=0xb, range=[0x0000000004000000-0x0000000004644000) (6MB) mem10: type=7, attr=0xb, range=[0x0000000004644000-0x000000000ffc0000) (185MB) mem11: type=4, attr=0xb, range=[0x000000000ffc0000-0x0000000010000000) (0MB) mem12: type=7, attr=0xb, range=[0x0000000010000000-0x000000007af6c000) (1711MB) mem13: type=2, attr=0xb, range=[0x000000007af6c000-0x000000007c8d2000) (25MB) mem14: type=1, attr=0xb, range=[0x000000007c8d2000-0x000000007c92e000) (0MB) mem15: type=2, attr=0xb, range=[0x000000007c92e000-0x000000007c938000) (0MB) mem16: type=1, attr=0xb, range=[0x000000007c938000-0x000000007c97e000) (0MB) mem17: type=7, attr=0xb, range=[0x000000007c97e000-0x000000007ce16000) (4MB) mem18: type=4, attr=0xb, range=[0x000000007ce16000-0x000000007ce1c000) (0MB) mem19: type=7, attr=0xb, range=[0x000000007ce1c000-0x000000007ce20000) (0MB) mem20: type=4, attr=0xb, range=[0x000000007ce20000-0x000000007ce22000) (0MB) mem21: type=7, attr=0xb, range=[0x000000007ce22000-0x000000007ce2a000) (0MB) mem22: type=4, attr=0xb, range=[0x000000007ce2a000-0x000000007d001000) (1MB) mem23: type=7, attr=0xb, range=[0x000000007d001000-0x000000007d002000) (0MB) mem24: type=4, attr=0xb, range=[0x000000007d002000-0x000000007d004000) (0MB) mem25: type=7, attr=0xb, range=[0x000000007d004000-0x000000007d026000) (0MB) mem26: type=4, attr=0xb, range=[0x000000007d026000-0x000000007d068000) (0MB) mem27: type=7, attr=0xb, range=[0x000000007d068000-0x000000007d069000) (0MB) mem28: type=4, attr=0xb, range=[0x000000007d069000-0x000000007d37e000) (3MB) mem29: type=7, attr=0xb, range=[0x000000007d37e000-0x000000007d700000) (3MB) mem30: type=3, attr=0xb, range=[0x000000007d700000-0x000000007d77e000) (0MB) mem31: type=7, attr=0xb, range=[0x000000007d77e000-0x000000007d8b4000) (1MB) mem32: type=6, attr=0x8000000000000009, range=[0x000000007d8b4000-0x000000007d900000) (0MB) mem33: type=3, attr=0xb, range=[0x000000007d900000-0x000000007f980000) (32MB) mem34: type=7, attr=0xb, range=[0x000000007f980000-0x000000007fa00000) (0MB) mem35: type=5, attr=0x8000000000000009, range=[0x000000007fa00000-0x000000007fe00000) (4MB) mem36: type=13, attr=0x8000000000000009, range=[0x000000007fe00000-0x000000007fe48000) (0MB) mem37: type=5, attr=0x8000000000000009, range=[0x000000007fe48000-0x000000007fea0000) (0MB) mem38: type=7, attr=0xb, range=[0x000000007fea0000-0x000000007feda000) (0MB) mem39: type=5, attr=0x8000000000000009, range=[0x000000007feda000-0x000000007ff46000) (0MB) mem40: type=6, attr=0x8000000000000009, range=[0x000000007ff46000-0x0000000080000000) (0MB) mem41: type=11, attr=0x1, range=[0x00000000fe000000-0x00000000ff000000) (16MB) mem42: type=6, attr=0x8000000000000001, range=[0x00000000ff000000-0x0000000100000000) (16MB) mem43: type=11, attr=0x8000000000000001, range=[0x00000ffff8000000-0x00000ffffc000000) (64MB) mem44: type=12, attr=0x8000000000000001, range=[0x00000ffffc000000-0x0000100000000000) (64MB) booting generic kernel on platform dig Early serial console at I/O port 0x2f8 (options '115200') Initial ramdisk at: 0xe00000007af72000 (9789052 bytes) SAL 3.20: Intel Corp SR870BH2 version 3.0 SAL Platform features: BusLock iosapic_system_init: Disabling PC-AT compatible 8259 interrupts ACPI: Local APIC address c0000000fee00000 ACPI: [APIC:0x07] ignored 1 entries of 2 found PLATFORM int CPEI (0x3): GSI 22 (level, low) -> CPU 0 (0x0100) vector 30 register_intr: changing vector 39 from IO-SAPIC-edge to IO-SAPIC-level 1 CPUs available, 1 CPUs total MCA related initialization done Virtual mem_map starts at 0xa0007fffff900000 Zone PFN ranges: DMA 1024 -> 262144 Normal 262144 -> 262144 early_node_map[3] active PFN ranges 0: 1024 -> 128557 0: 128576 -> 130688 0: 130984 -> 130998 Built 1 zonelists. Total pages: 129215 Kernel command line: BOOT_IMAGE=net0:ia64/people/horms/vmlinux.gz phys_efi console=uart,io,0x2f8,115200 crashkernel=256M loglevel=7 ro PID hash table entries: 4096 (order: 12, 32768 bytes) Console: colour VGA+ 80x25 Placing 64MB software IO TLB between 0x4644000 - 0x8644000 Memory: 1722416k/1796368k available (3010k code, 352128k reserved, 2124k data, 640k init) McKinley Errata 9 workaround not needed; disabling it Dentry cache hash table entries: 262144 (order: 7, 2097152 bytes) Inode-cache hash table entries: 131072 (order: 6, 1048576 bytes) Mount-cache hash table entries: 1024 ACPI: Core revision 20060707 DMI 2.3 present. ACPI: bus type pci registered ACPI: Interpreter enabled ACPI: Using IOSAPIC for interrupt routing ACPI: PCI Root Bridge [PCI0] (0000:00) PCI quirk: region 0c00-0c7f claimed by ICH4 ACPI/GPIO/TCO PCI quirk: region 0500-053f claimed by ICH4 GPIO ACPI: PCI Root Bridge [PCI1] (0000:02) ACPI: PCI Root Bridge [PCI2] (0000:05) ACPI: Device [CSFF] status [00000008]: functional but not present; setting present ACPI: PCI Root Bridge [CSFF] (0000:ff) Linux Plug and Play Support v0.97 (c) Adam Belay pnp: PnP ACPI init pnp: PnP ACPI: found 12 devices checking if image is initramfs... it is Freeing initrd memory: 9536kB freed perfmon: version 2.0 IRQ 238 perfmon: Itanium 2 PMU detected, 16 PMCs, 18 PMDs, 4 counters (47 bits) PAL Information Facility v0.5 perfmon: added sampling format default_format perfmon_default_smpl: default_format v2.0 registered io scheduler noop registered io scheduler anticipatory registered (default) Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled 00:08: ttyS0 at I/O 0x3f8 (irq = 44) is a 16550A 00:09: ttyS1 at I/O 0x2f8 (irq = 45) is a 16550A RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize mice: PS/2 mouse device common for all mice EFI Variables Facility v0.08 2004-May-17 Adding console on ttyS1 at I/O port 0x2f8 (options '115200') Freeing unused kernel memory: 640kB freed init started: BusyBox v1.2.1 (2006.09.23-05:46+0000) multi-call binary Starting pid 772, console /dev/console: '/etc/init.d/rcS' ifconfig: socket: Function not implemented ifconfig: No usable address families found. ifconfig: socket: Function not implemented Starting pid 890, console /dev/console: '/bin/sh' BusyBox v1.2.1 (2006.09.23-05:46+0000) Built-in shell (ash) Enter 'help' for a list of built-in commands. / # do_kdump Create ramdisk Load kernel and ramdisk kexec -p "/boot/vmlinux-ia64-kdump.gz" --initrd=/tmp/initramfs_data.cpio \ --append="phys_efi clock=pit ip=on apm=power-off console=tty0 loglevel=7 console=uart,io,0x2f8,115200n8 init 1 irqpoll maxcpus=1" Triggering KdumpSysRq : Trigger a crashdump Linux version 2.6.20-kexec-g5331be09-dirty (horms@xxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 3.4.5) #18 Thu Feb 8 16:26:47 JST 2007 Ignoring memory below 256MB Ignoring memory above 512MB EFI v1.10 by INTEL: SALsystab=0x7fe54980 ACPI=0x7ff99000 ACPI 2.0=0x7ff98000 MPS=0x7ff97000 SMBIOS=0xf0000 mem00: type=4, attr=0x9, range=[0x0000000000000000-0x0000000000001000) (0MB) mem01: type=7, attr=0x9, range=[0x0000000000001000-0x0000000000007000) (0MB) mem02: type=4, attr=0x9, range=[0x0000000000007000-0x0000000000009000) (0MB) mem03: type=7, attr=0x9, range=[0x0000000000009000-0x0000000000082000) (0MB) mem04: type=6, attr=0x8000000000000009, range=[0x0000000000082000-0x0000000000084000) (0MB) mem05: type=7, attr=0x9, range=[0x0000000000084000-0x0000000000085000) (0MB) mem06: type=4, attr=0x9, range=[0x0000000000085000-0x00000000000a0000) (0MB) mem07: type=5, attr=0x8000000000000009, range=[0x00000000000c0000-0x0000000000100000) (0MB) mem08: type=7, attr=0xb, range=[0x0000000000100000-0x0000000004000000) (63MB) mem09: type=7, attr=0xb, range=[0x0000000004000000-0x0000000004644000) (6MB) mem10: type=7, attr=0xb, range=[0x0000000004644000-0x000000000ffc0000) (185MB) mem11: type=4, attr=0xb, range=[0x000000000ffc0000-0x0000000010000000) (0MB) mem12: type=2, attr=0xb, range=[0x0000000010000000-0x0000000010490000) (4MB) mem13: type=2, attr=0xb, range=[0x0000000010490000-0x00000000104a0000) (0MB) mem14: type=2, attr=0xb, range=[0x00000000104a0000-0x0000000010650000) (1MB) mem15: type=7, attr=0xb, range=[0x0000000010650000-0x000000001ffe4000) (249MB) mem16: type=8, attr=0x5555555555555555, range=[0x000000001ffe4000-0x600000001fff2000) (6597069766656MB) mem17: type=7, attr=0x5555555555555555, range=[0x600000001fff2350-0x5151515151514350) (16583222432533MB) efi_get_pal_addr: no PAL-code memory-descriptor found No I/O port range found in EFI memory map, falling back to AR.KR0 (0xffffc000000) booting generic kernel on platform dig Early serial console at I/O port 0x2f8 (options '115200n8') Initial ramdisk at: 0xe00000001f544000 (10977792 bytes) SAL 3.20: Intel Corp SR870BH2 version 3.0 SAL Platform features: BusLock efi_get_pal_addr: no PAL-code memory-descriptor found iosapic_system_init: Disabling PC-AT compatible 8259 interrupts ACPI: Local APIC address c0000000fee00000 ACPI: [APIC:0x07] ignored 1 entries of 2 found PLATFORM int CPEI (0x3): GSI 22 (level, low) -> CPU 0 (0x0100) vector 30 register_intr: changing vector 39 from IO-SAPIC-edge to IO-SAPIC-level 1 CPUs available, 1 CPUs total MCA related initialization done Virtual mem_map starts at 0xa0007fffffc80000 Zone PFN ranges: DMA 16384 -> 262144 Normal 262144 -> 262144 early_node_map[1] active PFN ranges 0: 16384 -> 31744 Built 1 zonelists. Total pages: 15308 Kernel command line: phys_efi clock=pit ip=on apm=power-off console=tty0 loglevel=7 console=uart,io,0x2f8,115200n8 init 1 irqpoll maxcpus=1 elfcorehdr=524176K max_addr=512M min_addr=256M Warning! clock= boot option is deprecated. Use clocksource=xyz Misrouted IRQ fixup and polling support enabled This may significantly impact system performance PID hash table entries: 1024 (order: 10, 8192 bytes) Console: colour dummy device 80x25 Linux version 2.6.20-kexec-g5331be09-dirty (horms@xxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 3.4.5) #18 Thu Feb 8 16:26:47 JST 2007 Ignoring memory below 256MB Ignoring memory above 512MB EFI v1.10 by INTEL: SALsystab=0x7fe54980 ACPI=0x7ff99000 ACPI 2.0=0x7ff98000 MPS=0x7ff97000 SMBIOS=0xf0000 mem00: type=4, attr=0x9, range=[0x0000000000000000-0x0000000000001000) (0MB) mem01: type=7, attr=0x9, range=[0x0000000000001000-0x0000000000007000) (0MB) mem02: type=4, attr=0x9, range=[0x0000000000007000-0x0000000000009000) (0MB) mem03: type=7, attr=0x9, range=[0x0000000000009000-0x0000000000082000) (0MB) mem04: type=6, attr=0x8000000000000009, range=[0x0000000000082000-0x0000000000084000) (0MB) mem05: type=7, attr=0x9, range=[0x0000000000084000-0x0000000000085000) (0MB) mem06: type=4, attr=0x9, range=[0x0000000000085000-0x00000000000a0000) (0MB) mem07: type=5, attr=0x8000000000000009, range=[0x00000000000c0000-0x0000000000100000) (0MB) mem08: type=7, attr=0xb, range=[0x0000000000100000-0x0000000004000000) (63MB) mem09: type=7, attr=0xb, range=[0x0000000004000000-0x0000000004644000) (6MB) mem10: type=7, attr=0xb, range=[0x0000000004644000-0x000000000ffc0000) (185MB) mem11: type=4, attr=0xb, range=[0x000000000ffc0000-0x0000000010000000) (0MB) mem12: type=2, attr=0xb, range=[0x0000000010000000-0x0000000010490000) (4MB) mem13: type=2, attr=0xb, range=[0x0000000010490000-0x00000000104a0000) (0MB) mem14: type=2, attr=0xb, range=[0x00000000104a0000-0x0000000010650000) (1MB) mem15: type=7, attr=0xb, range=[0x0000000010650000-0x000000001ffe4000) (249MB) mem16: type=8, attr=0x5555555555555555, range=[0x000000001ffe4000-0x600000001fff2000) (6597069766656MB) mem17: type=7, attr=0x5555555555555555, range=[0x600000001fff2350-0x5151515151514350) (16583222432533MB) efi_get_pal_addr: no PAL-code memory-descriptor found No I/O port range found in EFI memory map, falling back to AR.KR0 (0xffffc000000) booting generic kernel on platform dig Early serial console at I/O port 0x2f8 (options '115200n8') Initial ramdisk at: 0xe00000001f544000 (10977792 bytes) SAL 3.20: Intel Corp SR870BH2 version 3.0 SAL Platform features: BusLock efi_get_pal_addr: no PAL-code memory-descriptor found iosapic_system_init: Disabling PC-AT compatible 8259 interrupts ACPI: Local APIC address c0000000fee00000 ACPI: [APIC:0x07] ignored 1 entries of 2 found PLATFORM int CPEI (0x3): GSI 22 (level, low) -> CPU 0 (0x0100) vector 30 register_intr: changing vector 39 from IO-SAPIC-edge to IO-SAPIC-level 1 CPUs available, 1 CPUs total MCA related initialization done Virtual mem_map starts at 0xa0007fffffc80000 Zone PFN ranges: DMA 16384 -> 262144 Normal 262144 -> 262144 early_node_map[1] active PFN ranges 0: 16384 -> 31744 Built 1 zonelists. Total pages: 15308 Kernel command line: phys_efi clock=pit ip=on apm=power-off console=tty0 loglevel=7 console=uart,io,0x2f8,115200n8 init 1 irqpoll maxcpus=1 elfcorehdr=524176K max_addr=512M min_addr=256M Warning! clock= boot option is deprecated. Use clocksource=xyz Misrouted IRQ fixup and polling support enabled This may significantly impact system performance PID hash table entries: 1024 (order: 10, 8192 bytes) Console: colour dummy device 80x25 Placing 64MB software IO TLB between 0x107f8000 - 0x147f8000 Memory: 171664k/239328k available (3010k code, 74096k reserved, 2124k data, 640k init) McKinley Errata 9 workaround not needed; disabling it Dentry cache hash table entries: 32768 (order: 4, 262144 bytes) Inode-cache hash table entries: 16384 (order: 3, 131072 bytes) Mount-cache hash table entries: 1024 ACPI: Core revision 20060707 DMI 2.3 present. ACPI: bus type pci registered ACPI: Interpreter enabled ACPI: Using IOSAPIC for interrupt routing ACPI: PCI Root Bridge [PCI0] (0000:00) PCI quirk: region 0c00-0c7f claimed by ICH4 ACPI/GPIO/TCO PCI quirk: region 0500-053f claimed by ICH4 GPIO ACPI: PCI Root Bridge [PCI1] (0000:02) ACPI: PCI Root Bridge [PCI2] (0000:05) ACPI: Device [CSFF] status [00000008]: functional but not present; setting present ACPI: PCI Root Bridge [CSFF] (0000:ff) Linux Plug and Play Support v0.97 (c) Adam Belay pnp: PnP ACPI init pnp: PnP ACPI: found 12 devices checking if image is initramfs... it is Freeing initrd memory: 10720kB freed perfmon: version 2.0 IRQ 238 perfmon: Itanium 2 PMU detected, 16 PMCs, 18 PMDs, 4 counters (47 bits) PAL Information Facility v0.5 perfmon: added sampling format default_format perfmon_default_smpl: default_format v2.0 registered read_from_oldmem: error: pfn (32761) > saved_max_pfn (31744) Kdump: vmcore not initialized io scheduler noop registered io scheduler anticipatory registered (default) Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled 00:08: ttyS0 at I/O 0x3f8 (irq = 44) is a 16550A 00:09: ttyS1 at I/O 0x2f8 (irq = 45) is a 16550A RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize mice: PS/2 mouse device common for all mice EFI Variables Facility v0.08 2004-May-17 Adding console on ttyS1 at I/O port 0x2f8 (options '115200n8') Freeing unused kernel memory: 640kB freed init started: BusyBox v1.2.1 (2006.09.23-05:46+0000) multi-call binary Starting pid 772, console /dev/console: '/etc/init.d/rcS' ifconfig: socket: Function not implemented ifconfig: No usable address families found. ifconfig: socket: Function not implemented Starting pid 953, console /dev/console: '/bin/sh' BusyBox v1.2.1 (2006.09.23-05:46+0000) Built-in shell (ash) Enter 'help' for a list of built-in commands. / # ls -l /proc/vmcore -r-------- 1 0 0 0 /proc/vmcore / # - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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