[Bug 242961] Crashes (elf64_coredump … vm_object_set_writeable_dirty) after the recent vm patch series

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242961

--- Comment #2 from Greg V <greg at unrelenting.technology> ---
(In reply to Mark Johnston from comment #1)

(kgdb) frame 10
#10 0xffffffff806d461f in vm_fault_dirty (entry=0xfffff8003205e000,
m=0xfffffe0008806d60, prot=<optimized out>, 
    fault_type=<optimized out>, fault_flags=0) at
/usr/src/sys/vm/vm_fault.c:249
warning: Source file is more recent than executable.
249                 (fault_flags & VM_FAULT_DIRTY) != 0;
(kgdb) p *m
$1 = {plinks = {q = {tqe_next = 0xfffffe0008446218, tqe_prev =
0xfffffe0008329d50}, s = {ss = {
        sle_next = 0xfffffe0008446218}}, memguard = {p = 18446741874824995352,
v = 18446741874823830864}, uma = {
      slab = 0xfffffe0008446218, zone = 0xfffffe0008329d50}}, listq = {tqe_next
= 0xfffffe0002d760c0, 
    tqe_prev = 0xfffffe0004f8e140}, object = 0x0, pindex = 6, phys_addr =
5617664000, md = {pv_list = {
      tqh_first = 0xfffff801464c72f8, tqh_last = 0xfffff801464c7300}, pv_gen =
1549922559, pat_mode = 6}, 
  ref_count = 0, busy_lock = 2, a = {{flags = 3, queue = 255 '\377', act_count
= 5 '\005'}, _bits = 100597763}, 
  order = 13 '\r', pool = 0 '\000', flags = 1 '\001', oflags = 0 '\000', psind
= 0 '\000', segind = 10 '\n', 
  valid = 255 '\377', dirty = 255 '\377'}
(kgdb) frame 11
#11 vm_fault (map=0xfffff8002e7a5000, vaddr=140737488240640, fault_type=1
'\001', fault_flags=0, 
    m_hold=0xfffffe00cdc814c0) at /usr/src/sys/vm/vm_fault.c:1358
1358            /*
(kgdb) p fs
$2 = <optimized out>

I guess I'll have to try a debug kernel…

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