Date: Tue, 24 Feb 2015 18:15:15 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 197997] [panic] ng_pppoe sometimes panics with trap 12 when server drops session Message-ID: <bug-197997-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197997 Bug ID: 197997 Summary: [panic] ng_pppoe sometimes panics with trap 12 when server drops session Product: Base System Version: 11.0-CURRENT Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: lev@FreeBSD.org ng_pppoe client (used via net/mpd5) sometimes panics with Trap 12 when server drops session. It looks like this: ng_pppoe[f]: no matching session ng_pppoe[f]: no matching session ng_pppoe[f]: no matching session ng_pppoe[f]: no matching session Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x800625008 fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff805fb6c0 stack pointer = 0x28:0xfffffe00f7b175e0 frame pointer = 0x28:0xfffffe00f7b17620 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 11 (irq259: em1:rx 0) trap number = 12 panic: page fault cpuid = 0 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00f7b17200 panic() at panic+0x1c1/frame 0xfffffe00f7b172c0 trap_fatal() at trap_fatal+0x379/frame 0xfffffe00f7b17320 trap_pfault() at trap_pfault+0x284/frame 0xfffffe00f7b173c0 trap() at trap+0x425/frame 0xfffffe00f7b17520 calltrap() at calltrap+0x8/frame 0xfffffe00f7b17520 --- trap 0xc, rip = 0xffffffff805fb6c0, rsp = 0xfffffe00f7b175e0, rbp = 0xfffffe00f7b17620 --- pppoe_findsession() at pppoe_findsession+0x80/frame 0xfffffe00f7b17620 ng_pppoe_rcvdata_ether() at ng_pppoe_rcvdata_ether+0x2a3/frame 0xfffffe00f7b176c0 ng_apply_item() at ng_apply_item+0x22e/frame 0xfffffe00f7b17750 ng_snd_item() at ng_snd_item+0x1a3/frame 0xfffffe00f7b17790 ether_demux() at ether_demux+0x204/frame 0xfffffe00f7b177c0 ether_nh_input() at ether_nh_input+0x36c/frame 0xfffffe00f7b17820 netisr_dispatch_src() at netisr_dispatch_src+0x62/frame 0xfffffe00f7b17890 ether_input() at ether_input+0x26/frame 0xfffffe00f7b178b0 vlan_input() at vlan_input+0x14a/frame 0xfffffe00f7b17930 ether_demux() at ether_demux+0x94/frame 0xfffffe00f7b17960 ether_nh_input() at ether_nh_input+0x36c/frame 0xfffffe00f7b179c0 netisr_dispatch_src() at netisr_dispatch_src+0x62/frame 0xfffffe00f7b17a30 ether_input() at ether_input+0x26/frame 0xfffffe00f7b17a50 if_input() at if_input+0xa/frame 0xfffffe00f7b17a60 em_rxeof() at em_rxeof+0x248/frame 0xfffffe00f7b17af0 em_msix_rx() at em_msix_rx+0x33/frame 0xfffffe00f7b17b20 intr_event_execute_handlers() at intr_event_execute_handlers+0xf9/frame 0xfffffe00f7b17b60 ithread_loop() at ithread_loop+0x9c/frame 0xfffffe00f7b17bb0 fork_exit() at fork_exit+0x75/frame 0xfffffe00f7b17bf0 -- You are receiving this mail because: You are the assignee for the bug.
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