Date: Mon, 24 Jul 2017 20:28:03 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 220980] [panic] panic when destroying vlan interface with traffic Message-ID: <bug-220980-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D220980 Bug ID: 220980 Summary: [panic] panic when destroying vlan interface with traffic Product: Base System Version: 11.0-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: kxie@xiplink.com When running around 30MBps bridge-over-vlan traffic on a virtualbox vm base= d on FreeBSD 11-Release live CD, I tried to destroy one of the VLAN interfaces = of the bridge with "ifconfig vlanX destroy". Sometimes(~25%), a panic happened. The panic info is as follows: Fatal trap 12: page fault while in kernel mode cpuid =3D 0; apic id =3D 00 fault virtual address =3D 0x3b0 fault code =3D supervisor read data, page not present instruction pointer =3D 0x20:0xffffffff80ab48ca stack pointer =3D 0x28:0xfffffe003c947550 frame pointer =3D 0x28:0xfffffe003c9475d0 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 12 (irq19: virtio_pci0) trap number =3D 12 panic: page fault cpuid =3D 0 KDB: stack backtrace: #0 0xffffffff80b24077 at kdb_backtrace+0x67 #1 0xffffffff80ad93e2 at vpanic+0x182 #2 0xffffffff80ad9253 at panic+0x43 #3 0xffffffff80fa0d31 at trap_fatal+0x351 #4 0xffffffff80fa0f23 at trap_pfault+0x1e3 #5 0xffffffff80fa04cc at trap+0x26c #6 0xffffffff80f84141 at calltrap+0x8 #7 0xffffffff80ad35a6 at _rm_rlock+0x3c6 #8 0xffffffff80beb6d9 at vlan_input+0xb9 #9 0xffffffff80be2a65 at ether_demux+0x95 #10 0xffffffff80be3752 at ether_nh_input+0x322 #11 0xffffffff80bfa095 at netisr_dispatch_src+0xa5 #12 0xffffffff80be2d76 at ether_input+0x26 #13 0xffffffff8091ea8c at vtnet_rxq_eof+0x84c #14 0xffffffff8091f643 at vtnet_rx_vq_intr+0x93 #15 0xffffffff8091b4d0 at vtpci_legacy_intr+0xb0 #16 0xffffffff80a9340f at intr_event_execute_handlers+0x20f #17 0xffffffff80a93676 at ithread_loop+0xc6 There is another bug #198580 similar to mine, but it's in 9.2-STABLE so I p= ost a new one. --=20 You are receiving this mail because: You are the assignee for the bug.=
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