Date: Sat, 26 May 2018 13:20:08 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 228501] [VIMAGE JAIL] panic: negative refcount 0xfffff8002717643c (when stopping jail) Message-ID: <bug-228501-7501-KfAi8x8qdZ@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-228501-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-228501-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D228501 --- Comment #4 from Marie Helene Kvello-Aune <marieheleneka@gmail.com> --- Update: If I manually remove all IPv4 addresses so that only IPv6 addresses remain = (or even if I remove ::1 too, but leave fe80::1%lo0 there) before stopping the jail, I get a similar kernel panic as previously (see new attachment: panic_backtrace_ipv6.txt) I managed to crash the system spectacularly by removing all IP addresses be= fore stopping the jail: # jexec devsamba ifconfig lo0 inet6 ::1 -alias # jexec devsamba ifconfig lo0 inet6 fe80::1%lo0 -alias # jexec devsamba ifconfig lo0 -alias # service jail stop devsamba Fatal trap 9: general protection fault while in kernel mode cpuid =3D 7; apic id =3D 07 instruction pointer =3D 0x20:0xffffffff80ca2032 stack pointer =3D 0x0:0xfffffe0077b96770 frame pointer =3D 0x0:0xfffffe0077b96840 code segment =3D base 0x0, limit 0xfffff, type 0x1b =3D DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags =3D interrupt enabled, resume, IOPL =3D 0 current process =3D 0 (thread taskq) ## This was printed in console, but not part of dump: [ thread pid 0 tid 100015 ] Stopped at rt_foreach_fib_walk_del+0x1c2: call *%eax I have the default FIB configuration (one fib, which is fib 0). =3D=3D=3D=3D=3D Summary; all actions taken inside the jail, followed by stopping the jail: * Manually remove all IPv4 addresses (but leaving IPv6 addresses): panic (negative ref count) * Manually remove all IP addresses: panic (general protection fault) * Just stopping the jail: panic (negative ref count) --=20 You are receiving this mail because: You are the assignee for the bug.=
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