panic in -current: "vp->v_iflag & VI_TEXT" failed: file "/usr/src/sys/kern/exec_subr.c", line 183

[matthew green <mrg%eterna.com.au@localhost>]

that's this:

175 vmcmd_map_pagedvn(struct lwp *l, struct exec_vmcmd *cmd)
176 {
[ ... ]
181         vm_prot_t prot, maxprot;
182
183         KASSERT(vp->v_iflag & VI_TEXT);

christos said this happened to him on a 8c/16t 64GB machine, using
build.sh -j40, and i was able reproduce it on a 6c/12th 64GB machine.
my build only got as far as installing includes (so literally right
after tools were built.)  the longer pacic message is:

panic: kernel diagnostic assertion "vp->v_iflag & VI_TEXT" failed: file "/usr/src/sys/kern/exec_subr.c", line 183
cpu9: Begin traceback...
vpanic() at netbsd:vpanic+0x156
kern_assert() at netbsd:kern_assert+0x4b
vmcmd_map_pagedvn() at netbsd:vmcmd_map_pagedvn+0x137
execve_runproc() at netbsd:execve_runproc+0x394
execve1() at netbsd:execve1+0x4f
sys_execve() at netbsd:sys_execve+0x2a
syscall() at netbsd:syscall+0x196
--- syscall (number 59) ---
netbsd:syscall+0x196:

my panic is the same as christos' -- inside execve1().  i'm getting
a crash dump now, so i can probably inspect this further, but i'm
wondering if this is related to the changes to vnode/nfs locking
changes that came around a week ago:

https://mail-index.netbsd.org/source-changes/2022/02/28/msg137218.html
https://mail-index.netbsd.org/source-changes/2022/02/28/msg137219.html

i don't know when this broke.  i only really started looking because
christos said he saw this problem..

thanks.


.mrg.