Module Name: src
Committed By: martin
Date: Mon Apr 27 14:56:22 UTC 2020
Modified Files:
src/sys/dev/nvmm [netbsd-9]: nvmm.c
Log Message:
Pull up following revision(s) (requested by maxv in ticket #857):
sys/dev/nvmm/nvmm.c: revision 1.26
In nvmm_open(), make sure an implementation was found. This fixes an
initialization bug triggerable in certain conditions.
If you build nvmm inside the kernel, AND have a cpu that is not supported,
AND run nvmmctl (or qemu-nvmm, both being the only binaries in the "nvmm"
group), you get a page fault.
This is because when nvmm is built inside the kernel, the kernel registers
nvmm_cdevsw behind nvmm's back. The ioctl is therefore always accessible,
and will hit NULL pointers if nvmm_init() failed.
Problem reported by Andrei M. on netbsd-users@, thanks.
To generate a diff of this commit:
cvs rdiff -u -r1.22.2.1 -r1.22.2.2 src/sys/dev/nvmm/nvmm.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
