Date: Thu, 26 Nov 2015 00:47:24 -0800 From: NGie Cooper <yaneurabeya@gmail.com> To: Nomad Esst <noname.esst@yahoo.com> Cc: Freebsd Hackers List <freebsd-hackers@freebsd.org> Subject: Re: interface loopback deletion panic Message-ID: <C3F038FA-7E63-4DF5-9FD0-CE4F1F8D3E74@gmail.com> In-Reply-To: <1436779437.8863609.1448527079532.JavaMail.yahoo@mail.yahoo.com> References: <1436779437.8863609.1448527079532.JavaMail.yahoo.ref@mail.yahoo.com> <1436779437.8863609.1448527079532.JavaMail.yahoo@mail.yahoo.com>
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> On Nov 26, 2015, at 00:37, Nomad Esst via freebsd-hackers = <freebsd-hackers@freebsd.org> wrote: >=20 > See the following. When I try do delete the loopback interface, I face = this kernel panic. I'm using FreeBSD9.2 AMD64 >=20 > [root@lower ~]# ifconfig lo1 deletein_scrubprefix: err=3D65, prefix = delete failed > panic: rtfree 2 > cpuid =3D 3 > KDB: stack backtrace: > db_trace_self_wrapper() at db_trace_self_wrapper+0x2a/frame = 0xffffff809b08a620 > kdb_backtrace() at kdb_backtrace+0x37/frame 0xffffff809b08a6e0 > panic() at panic+0x1ce/frame 0xffffff809b08a7e0 > rtfree() at rtfree+0x105/frame 0xffffff809b08a800 > in_ifadownkill() at in_ifadownkill+0x115/frame 0xffffff809b08a830 > rn_walktree() at rn_walktree+0x7c/frame 0xffffff809b08a860 > in_ifadown() at in_ifadown+0xbe/frame 0xffffff809b08a8b0 > in_control() at in_control+0xa31/frame 0xffffff809b08a960 > ifioctl() at ifioctl+0x803/frame 0xffffff809b08aa60 > kern_ioctl() at kern_ioctl+0x106/frame 0xffffff809b08aab0 > sys_ioctl() at sys_ioctl+0xfd/frame 0xffffff809b08ab10 > amd64_syscall() at amd64_syscall+0x4df/frame 0xffffff809b08ac30 > Xfast_syscall() at Xfast_syscall+0xf7/frame 0xffffff809b08ac30 > --- syscall (54, FreeBSD ELF64, sys_ioctl), rip =3D 0x801170abc, rsp =3D= 0x7fffffffd3b8, rbp =3D 0x7fffffffde85 --- > KDB: enter: panic > [ thread pid 16247 tid 100253 ] > Stopped at kdb_enter+0x3b: movq $0,0x5d0072(%rip) > Thanks in advance. Can you please describe how you created the interface (address, static = routes, etc)? I=E2=80=99d like to confirm whether or not the issue = exists on stable/9 and newer versions of FreeBSD. Thanks! -NGie=
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