On Sat, Sep 01, 2018 at 02:09:12AM +0700, Eugene Grosbein wrote: > 31.08.2018 23:08, Samuel Chow wrote: > > > I am running 11-STABLE, and I am experiencing kernel panics when I am > > destroying a VIMAGE-based jail. Naturally, I flipped to the chapter about > > 'Kernel Debugging' to learn about 'Obtaining a Kernel Crash Dump'. > > > > However, I am finding that my permanently glabel'ed disk partition cannot > > be used as dumpdev. Is that true, and why not? I mean, swap can use it just > > fine. I am unable to find this restriction in the documentation. > > > > > > # grep swap /etc/fstab > > /dev/label/boot01b none swap sw 0 0 > > # swapinfo > > Device 1K-blocks Used Avail Capacity > > /dev/label/boot01b 41943040 0 41943040 0% > > # glabel status | grep boot > > label/boot01 N/A ada4s1 > > label/boot02 N/A ada5s1 > > # dumpon /dev/label/boot01b > > dumpon: ioctl(DIOCSKERNELDUMP): Operation not supported by device > > That's not about label but underlying device that seems to be GEOM_PART_MBR > and it allows kernel dumps only if slice (MBR partition) type is 0xa5 for > "freebsd" > or 0x82 ("linux swap"). Please show output of the command "gpart show ada4".
Ah, right, please ignore my other reply. When I actually test it myself, dumpon /dev/label/foo seems to work; I assumed the lack of handling for GEOM::kerneldump in the glabel code was a problem. Sorry for the noise. _______________________________________________ freebsd-stable@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"