Re: ptcwrite panic (with dump)

No symbol table info available.
#23 0xc0555fe6 in ttyinfo (tp=0xc3602c00) at ../../../kern/tty.c:2565
        utime = {tv_sec = -1009844964, tv_usec = 1}
        stime = {tv_sec = -1066411237, tv_usec = 299}
        p = (struct proc *) 0x14
        pick = (struct proc *) 0xc050e9fa
        td = (struct thread *) 0x0
        stateprefix = 0xee3e3b4c "\200;>(U"
        state = 0xc0704438 "../../../kern/tty.c"
        rss = 623
        load = 0
        pctcpu = -1017107456
#24 0xc05528e4 in ttyinput (c=20, tp=0xc3602c00) at ../../../kern/tty.c:626
---Type <return> to continue, or q <return> to quit---
        iflag = 11010
        lflag = 1483
        cc = (cc_t *) \177\027\025\022\b\003\034\032\031\021\023\026\017\001"
        i = 0
        err = 0
#25 0xc0559ef0 in ptcwrite (dev=0x0, uio=0xee3e3c70, flag=4) at linedisc.h:122
        tp = (struct tty *) 0xc3602c00
        cp = (u_char *) 0xee3e3ba1 ""
        cc = 1
        locbuf = "\024\000\000\000\027#50 0x00000000 in ?? ()
No symbol table info available.
#51 0x00000000 in ?? ()
No symbol table info available.
#52 0x00000000 in ?? ()
No symbol table info available.
#53 0x60abe000 in ?? ()
No symbol table info available.
#54 0xc3a593f8 in ?? ()
No symbol table info available.
#55 0xc3a5ad80 in ?? ()
No symbol table info available.
---Type <return> to continue, or q <return> to quit---
#56 0xee3e36d4 in ?? ()
No symbol table info available.
#57 0xee3e36b0 in ?? ()
No symbol table info available.
#58 0xc34df600 in ?? ()
No symbol table info available.
#59 0xc052d050 in sched_switch (td=0x0, newtd=0x80f3000, flags=Cannot access memory at address 0xbfbfe498
) at ../../../kern/sched_4bsd.c:971
        kg = (struct ksegrp *) 0x0
        p = (struct proc *) 0x0
Previous frame inner to this frame (corrupt stack?)