Re: [PATCH 4/6] pstore/ram: Add some more documentation and examples

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]


Hi Anton,

Ignore my previous email. I am still getting caught up with your
patches.

On Wed, 2012-05-16 at 05:56 -0700, Anton Vorontsov wrote:
> Suggested-by: Shuah Khan <shuahkhan@xxxxxxxxx>
> Signed-off-by: Anton Vorontsov <anton.vorontsov@xxxxxxxxxx>
> ---
>  Documentation/ramoops.txt |   15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/Documentation/ramoops.txt b/Documentation/ramoops.txt
> index 4ba7db2..138823b 100644
> --- a/Documentation/ramoops.txt
> +++ b/Documentation/ramoops.txt
> @@ -40,6 +40,12 @@ corrupt, but usually it is restorable.
>  Setting the ramoops parameters can be done in 2 different manners:
>   1. Use the module parameters (which have the names of the variables described
>   as before).
> + For quick debugging, you can also reserve parts of memory during boot
> + and then use the reserved memory for ramoops. For example, assuming a machine
> + with > 128 MB of memory, the following kernel command line will tell the
> + kernel to use only the first 128 MB of memory, and place ECC-protected ramoops
> + region at 128 MB boundary:
> + "mem=128M ramoops.mem_address=0x8000000 ramoops.ecc=1"
>   2. Use a platform device and set the platform data. The parameters can then
>   be set through that platform data. An example of doing that is:

Thanks much. This is great information to have. Exactly the detail I was
asking for.

>  
> @@ -70,6 +76,15 @@ if (ret) {
>  	return ret;
>  }
>  
> +You can specify either RAM memory or peripheral devices' memory. However, when
> +specifying RAM, be sure to reserve the memory by issuing memblock_reserve()
> +very early in the architecture code, just before platform device registration,
> +e.g.:
> +
> +#include <linux/memblock.h>
> +
> +memblock_reserve(ramoops_data.mem_address, ramoops_data.mem_size);

Same here. :)

-- Shuah
> +
>  3. Dump format
>  
>  The data dump begins with a header, currently defined as "====" followed by a


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


[Other Archives]     [Linux Kernel Newbies]     [Linux Driver Development]     [Fedora Kernel]     [Linux Kernel Testers]     [Linux SH]     [Linux Omap]     [Linux Kbuild]     [Linux Tape]     [Linux Input]     [Linux Kernel Janitors]     [Linux Kernel Packagers]     [Linux Doc]     [Linux Man Pages]     [Linux API]     [Linux Memory Management]     [Linux Modules]     [Linux Standards]     [Kernel Announce]     [Netdev]     [Git]     [Linux PCI]     Linux CAN Development     [Linux I2C]     [Linux RDMA]     [Linux NUMA]     [Netfilter]     [Netfilter Devel]     [SELinux]     [Bugtraq]     [FIO]     [Linux Perf Users]     [Linux Serial]     [Linux PPP]     [Linux ISDN]     [Linux Next]     [Kernel Stable Commits]     [Linux Tip Commits]     [Kernel MM Commits]     [Linux Security Module]     [AutoFS]     [Filesystem Development]     [Ext3 Filesystem]     [Linux bcache]     [Ext4 Filesystem]     [Linux BTRFS]     [Linux CEPH Filesystem]     [Linux XFS]     [XFS]     [Linux NFS]     [Linux CIFS]     [Ecryptfs]     [Linux NILFS]     [Linux Cachefs]     [Reiser FS]     [Initramfs]     [Linux FB Devel]     [Linux OpenGL]     [DRI Devel]     [Fastboot]     [Linux RT Users]     [Linux RT Stable]     [eCos]     [Corosync]     [Linux Clusters]     [LVS Devel]     [Hot Plug]     [Linux Virtualization]     [KVM]     [KVM PPC]     [KVM ia64]     [Linux Containers]     [Linux Hexagon]     [Linux Cgroups]     [Util Linux]     [Wireless]     [Linux Bluetooth]     [Bluez Devel]     [Ethernet Bridging]     [Embedded Linux]     [Barebox]     [Linux MMC]     [Linux IIO]     [Sparse]     [Smatch]     [Linux Arch]     [x86 Platform Driver]     [Linux ACPI]     [Linux IBM ACPI]     [LM Sensors]     [CPU Freq]     [Linux Power Management]     [Linmodems]     [Linux DCCP]     [Linux SCTP]     [ALSA Devel]     [Linux USB]     [Linux PA RISC]     [Linux Samsung SOC]     [MIPS Linux]     [IBM S/390 Linux]     [ARM Linux]     [ARM Kernel]     [ARM MSM]     [Tegra Devel]     [Sparc Linux]     [Linux Security]     [Linux Sound]     [Linux Media]     [Video 4 Linux]     [Linux IRDA Users]     [Linux for the blind]     [Linux RAID]     [Linux ATA RAID]     [Device Mapper]     [Linux SCSI]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Linux IDE]     [Linux SMP]     [Linux AXP]     [Linux Alpha]     [Linux M68K]     [Linux ia64]     [Linux 8086]     [Linux x86_64]     [Linux Config]     [Linux Apps]     [Linux MSDOS]     [Linux X.25]     [Linux Crypto]     [DM Crypt]     [Linux Trace Users]     [Linux Btrace]     [Linux Watchdog]     [Utrace Devel]     [Linux C Programming]     [Linux Assembly]     [Dash]     [DWARVES]     [Hail Devel]     [Linux Kernel Debugger]     [Linux gcc]     [Gcc Help]     [X.Org]     [Wine]

Add to Google Powered by Linux

[Older Kernel Discussion]     [Yosemite National Park Forum]     [Large Format Photos]     [Gimp]     [Yosemite Photos]     [Stuff]