[Bug 293382] Dead lock and kernel crash around closefp_impl

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 30 Mar 2026 09:25:24 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=293382

--- Comment #28 from Paul <devgs@ukr.net> ---
Figured you might also want this.


(kgdb) p (void*)$r15
$2 = (void *) 0xff0100010aac4b00
(kgdb) fr 16
#16 0xffffffff80b63468 in closefp_impl (fdp=0xfffffe02c31fec90, fd=544408,
fp=0xff01002710a27640, td=0xff0100026dc5d780, audit=true) at
/usr/src/sys/kern/kern_descrip.c:1413
1413                    knote_fdclose(td, fd);
(kgdb) p *fp
$5 = {
  f_flag = 7,
  f_count = 1,
  f_data = 0xff01005c9babe000,
  f_ops = 0xffffffff814d4aa0 <socketops>,
  f_vnode = 0x0,
  f_cred = 0xff0100010a9eb600,
  f_type = 2,
  f_vflags = 0,
  {
    f_seqcount = {0, 0},
    f_pipegen = 0
  },
  f_nextoff = {0, 0},
  f_vnun = {
    fvn_cdevpriv = 0x0,
    fvn_advice = 0x0
  },
  f_offset = 0
}

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