[lkml]   [2004]   [Aug]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [RFC]Kexec based crash dumping

It is interesting.

We(*) also make crash dump acording to similer concept.
(*) NTT Data Corporation & VA Linux Systems Japan K.K.

Our main idea is the following.

- prepare a kernel which does only dump real memory to block
device. ("dump mini kernel")
- pre-allocate the memory (4MB is enough) used by the dump mini
kernel and pre-load the dump mini kernel.
- when crash occur exec the dump mini kernel.
- the dump mini kernel stands in and only uses pre-allocated

We made mkexec(mini kernel exec) based on kexec code but
simplify a lot. Mkexec can co-exist kexec and can be kernel
module. We made also "dump mini kernel".
(now i386 only)

We will open our code shortly. (maybe I think)
I think there are many items to be able to cooperate.

Thank you.
Itsuro ODA <>

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 14:05    [W:0.028 / U:29.880 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site