Re: kern/51877: carp related panic during shutdown

[Hauke Fath <hf%spg.tu-darmstadt.de@localhost>]

The following reply was made to PR kern/51877; it has been noted by GNATS.

From: Hauke Fath <hf%spg.tu-darmstadt.de@localhost>
To: Ryota Ozaki <ozaki-r%netbsd.org@localhost>
Cc: "gnats-bugs%NetBSD.org@localhost" <gnats-bugs%netbsd.org@localhost>,
        kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost
Subject: Re: kern/51877: carp related panic during shutdown
Date: Tue, 17 Jan 2017 11:24:06 +0100

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 On Tue, 17 Jan 2017 19:15:36 +0900, Ryota Ozaki wrote:
 > Could you check where mutex_tryenter+0x12 is?
 > (objdump -d netbsd |grep -A 30 'mutex_tryenter>:' or something)
 
 Attached.
 
 
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 ffffffff80426901 <mutex_tryenter>:
 ffffffff80426901:=0955                   =09push   %rbp
 ffffffff80426902:=0948 89 e5             =09mov    %rsp,%rbp
 ffffffff80426905:=0941 56                =09push   %r14
 ffffffff80426907:=0941 55                =09push   %r13
 ffffffff80426909:=0941 54                =09push   %r12
 ffffffff8042690b:=0953                   =09push   %rbx
 ffffffff8042690c:=0948 83 ec 10          =09sub    $0x10,%rsp
 ffffffff80426910:=0948 89 fb             =09mov    %rdi,%rbx
 ffffffff80426913:=0948 8b 07             =09mov    (%rdi),%rax
 ffffffff80426916:=09a8 01                =09test   $0x1,%al
 ffffffff80426918:=090f 85 85 00 00 00    =09jne    ffffffff804269a3 <mutex_=
 tryenter+0xa2>
 ffffffff8042691e:=0965 4c 8b 2c 25 e8 01 =09mov    %gs:0x1e8,%r13
 ffffffff80426925:=0900 00=20
 ffffffff80426927:=094d 85 ed             =09test   %r13,%r13
 ffffffff8042692a:=090f 84 dc 00 00 00    =09je     ffffffff80426a0c <mutex_=
 tryenter+0x10b>
 ffffffff80426930:=094c 8b 23             =09mov    (%rbx),%r12
 ffffffff80426933:=0941 83 e4 04          =09and    $0x4,%r12d
 ffffffff80426937:=094c 89 ea             =09mov    %r13,%rdx
 ffffffff8042693a:=094c 09 e2             =09or     %r12,%rdx
 ffffffff8042693d:=094c 89 e6             =09mov    %r12,%rsi
 ffffffff80426940:=0948 89 df             =09mov    %rbx,%rdi
 ffffffff80426943:=09e8 a8 8a 13 00       =09callq  ffffffff8055f3f0 <_atomi=
 c_cas_64>
 ffffffff80426948:=0949 89 c6             =09mov    %rax,%r14
 ffffffff8042694b:=09e8 c0 8a 13 00       =09callq  ffffffff8055f410 <_memba=
 r_consumer>
 ffffffff80426950:=094d 39 f4             =09cmp    %r14,%r12
 ffffffff80426953:=090f 85 a4 00 00 00    =09jne    ffffffff804269fd <mutex_=
 tryenter+0xfc>
 ffffffff80426959:=0948 8b 03             =09mov    (%rbx),%rax
 ffffffff8042695c:=09a8 04                =09test   $0x4,%al
 ffffffff8042695e:=090f 84 01 01 00 00    =09je     ffffffff80426a65 <mutex_=
 tryenter+0x164>
 ffffffff80426964:=0948 8b 03             =09mov    (%rbx),%rax
 
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