If you're having issues with a disk contoller or disk IO driver its highly likely that a savecore to disk after the panic will fail. I'm not sure how to work around this, maybe a dedicated dump device not on a controller that uses a different driver then the one that you're having issues with?
-----Original Message----- From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-boun...@opensolaris.org] On Behalf Of Blake Sent: Wednesday, March 11, 2009 4:45 PM To: Richard Elling Cc: Marc Bevand; zfs-discuss@opensolaris.org Subject: Re: [zfs-discuss] reboot when copying large amounts of data I guess I didn't make it clear that I had already tried using savecore to retrieve the core from the dump device. I added a larger zvol for dump, to make sure that I wasn't running out of space on the dump device: r...@host:~# dumpadm Dump content: kernel pages Dump device: /dev/zvol/dsk/rpool/bigdump (dedicated) Savecore directory: /var/crash/host Savecore enabled: yes I was using the -L option only to try to get some idea of why the system load was climbing to 1 during a simple file copy. On Wed, Mar 11, 2009 at 4:58 PM, Richard Elling <richard.ell...@gmail.com> wrote: > Blake wrote: >> >> I'm attaching a screenshot of the console just before reboot. The >> dump doesn't seem to be working, or savecore isn't working. >> >> On Wed, Mar 11, 2009 at 11:33 AM, Blake <blake.ir...@gmail.com> wrote: >> >>> >>> I'm working on testing this some more by doing a savecore -L right >>> after I start the copy. >>> >>> > > savecore -L is not what you want. > > By default, for OpenSolaris, savecore on boot is disabled. But the > core will have been dumped into the dump slice, which is not used for swap. > So you should be able to run savecore at a later time to collect the > core from the last dump. > -- richard > > _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
