Messages in this thread | | | From | Keith Owens <> | Subject | Re: kiobuf using kernel pages | Date | Fri, 12 Nov 1999 00:42:19 +1100 |
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On Thu, 11 Nov 1999 12:56:23 +0000 (GMT), Alan Cox <alan@lxorguk.ukuu.org.uk> wrote: >> Trying to port the SGI lcrash code to 2.3.26 ix86. It compiles, runs, >> traps the oops, starts writing the dump to swap, dies with -EFAULT in >> sd_raw_rw. My guess is because the buffer address is c2c00000, i.e. I > >Firstly if your machine has crashed I wouldnt recommend invoking the scsi >disk layer. If your partition info is corrupt or the scsi malloc pool is >corrupt you could hit anything.
Agreed. But SGI have gone to the bother of writing a free standing, raw i/o SCSI system to "handle" dumps even when the machine has crashed, using a pre formatted swap partition. I am not convinced myself if it is safe or not, only experience will show. Their patch is only against 2.2.13, I'm porting it to 2.3.26 for testing.
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