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Re: kern/51522

The following reply was made to PR kern/51522; it has been noted by GNATS.

From: Tom Ivar Helbekkmo <>
Subject: Re: kern/51522
Date: Thu, 27 Oct 2016 16:10:51 +0200

 After more than a week, I finally had another crash, but this is
 probably something different...?
 uvm_fault(0xffffffff81303840, 0x0, 1) -> e
 fatal page fault in supervisor mode
 trap type 6 code 0 rip ffffffff806401c3 cs 8 rflags 10246 cr2 78 ilevel 4 rsp fffffe8100514e68
 curlwp 0xfffffe8100602220 pid 0.67 lowest kstack 0xfffffe81005112c0
 panic: trap
 cpu2: Begin traceback...
 vpanic() at netbsd:vpanic+0x140
 snprintf() at netbsd:snprintf
 trap() at netbsd:trap+0xc4b
 --- trap (number 6) ---
 pf_state_tree_ext_gwy_RB_REMOVE_COLOR() at netbsd:pf_state_tree_ext_gwy_RB_REMOVE_COLOR+0xcf
 pf_state_tree_ext_gwy_RB_REMOVE() at netbsd:pf_state_tree_ext_gwy_RB_REMOVE+0xca
 pf_detach_state() at netbsd:pf_detach_state+0x8b
 pf_purge_expired_states() at netbsd:pf_purge_expired_states+0x73
 pf_purge_thread() at netbsd:pf_purge_thread+0x69
 cpu2: End traceback...
 0xffffffff80119ab5 in cpu_reboot (howto=howto@entry=260, bootstr=bootstr@entry=0x0)
     at /usr/src/sys/arch/amd64/amd64/machdep.c:676
 676                     dumpsys();
 (gdb) bt
 #0  0xffffffff80119ab5 in cpu_reboot (howto=howto@entry=260, bootstr=bootstr@entry=0x0)
     at /usr/src/sys/arch/amd64/amd64/machdep.c:676
 #1  0xffffffff808ad97c in vpanic (fmt=fmt@entry=0xffffffff80ed4fdb "trap", ap=ap@entry=0xfffffe8100514c38)
     at /usr/src/sys/kern/subr_prf.c:342
 #2  0xffffffff808ada30 in panic (fmt=fmt@entry=0xffffffff80ed4fdb "trap") at /usr/src/sys/kern/subr_prf.c:258
 #3  0xffffffff8011b736 in trap (frame=0xfffffe8100514d70) at /usr/src/sys/arch/amd64/amd64/trap.c:298
 #4  0xffffffff8010115e in alltraps ()
 #5  0xffffffff806401c3 in pf_state_tree_ext_gwy_RB_REMOVE_COLOR (head=0xffffffff8128cea0 <pf_statetbl_ext_gwy>, 
     parent=0xfffffe81129c1160, elm=0x0) at /usr/src/sys/dist/pf/net/pf.c:337
 #6  0xffffffff8064051e in pf_state_tree_ext_gwy_RB_REMOVE (head=head@entry=0xffffffff8128cea0 <pf_statetbl_ext_gwy>, 
     elm=<optimized out>, elm@entry=0xfffffe81129c1d40) at /usr/src/sys/dist/pf/net/pf.c:337
 #7  0xffffffff806456b6 in pf_detach_state (s=<optimized out>, flags=flags@entry=0)
     at /usr/src/sys/dist/pf/net/pf.c:3042
 #8  0xffffffff806459d8 in pf_unlink_state (cur=<optimized out>) at /usr/src/sys/dist/pf/net/pf.c:1086
 #9  0xffffffff80645ae7 in pf_purge_expired_states (maxcheck=18) at /usr/src/sys/dist/pf/net/pf.c:1148
 #10 0xffffffff80645baa in pf_purge_thread (v=<optimized out>) at /usr/src/sys/dist/pf/net/pf.c:950
 #11 0xffffffff801008d7 in lwp_trampoline ()
 #12 0x0000000000000000 in ?? ()

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