Re: kern/54541: kernel panic using "zfs diff"

[christos%zoulas.com@localhost (Christos Zoulas)]

On Oct 11,  4:05pm, prlw1%cam.ac.uk@localhost (Patrick Welche) wrote:
-- Subject: Re: kern/54541: kernel panic using "zfs diff"

| The following reply was made to PR kern/54541; it has been noted by GNATS.
| 
| From: Patrick Welche <prlw1%cam.ac.uk@localhost>
| To: gnats-bugs%netbsd.org@localhost
| Cc: 
| Subject: Re: kern/54541: kernel panic using "zfs diff"
| Date: Fri, 11 Oct 2019 17:01:34 +0100
| 
|  On Wed, Oct 09, 2019 at 05:05:01PM +0000, Christos Zoulas wrote:
|  >  Something seems to not understand that this is a hijacked fd which it seems
|  >  to be: 133 (128 + 5)...
|  
|  /dev/zfs is hijacked:
|  export RUMPHIJACK=blanket=/dev/zfs:/dk:/storage,sysctl=yes,modctl=yes
|  
|  rumpns_fd_getfile receives the 133 rather than 5 so complains.
|  So I seem to be seeing a rump issue rather than a zfs issue?

Well, from the stacktrace it seems that it does not get hijacked for some
reason. Why don't you try to break with gdb in the ioctl call?

christos