Messages in this thread |  | | | Date | Mon, 19 Jan 1998 17:48:30 -0800 (PST) | | From | Dan Hollis <> | | Subject | Re: 3.0 wishlist Was: Overview of 2.2.x goals? |
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On Mon, 19 Jan 1998, linux kernel account wrote: > On Mon, 19 Jan 1998, Dan Hollis wrote: > > On Mon, 19 Jan 1998, Richard Guy Briggs wrote: > > > > Thats all I can think of right now.. I'm sure there are many more things > > > > that I would feel nessassary in a 3.0 release.. I'm sure others can add.. > > > How about a kernel panic core memory dump to disk for forensic research? > > The current logic behind not doing this in linux is that since its > > impossible to do it perfectly (e.g. 100% foolproof under all situations), > > it shouldnt be done at all. (Still, BSD manages to do it). > I think you should point out the classic horror story: > > Imagine the panic results in the coruption of the disk driver or the FS > and it decides to dump core all over your important data..
Thats why BSD and others do a CRC on the dump code to make sure everything is consistent enough to do a dump. It also only writes to reserved section of the disk and not the filesystem. Thus the horror story becomes vapor.
-Dan
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