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

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

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: Wed, 9 Oct 2019 15:27:18 +0100

 Today's ptrace patch makes gdb work much better...
 
 make_temp_snapshot calls ioctl(ZFS_IOC_TMP_SNAPSHOT)
 zfs_ioc_tmp_snapshot calls zfs_onexit_fd_hold
 zfs_onexit_fd_hold calls fd_getfile(133) which returns NULL. why?!