On Jul 7, 2014, at 1:23 PM, Luigi Rizzo wrote: > On Mon, Jul 7, 2014 at 1:03 PM, Borja Marcos <bor...@sarenet.es> wrote: > we'll try to investigate, can you tell us more about the environment you use ? > (FreeBSD version, card model (PCI id perhaps), iperf3 invocation line, > interface configuration etc.) > > The main differences between 10.0.747.0 and the code in head (after > our fix) is the use > of drbr_enqueue/dequeue versus the peek/putback in the transmit routine. > > > Both drivers still have issues when the link flaps because the > transmit queue is not cleaned > up properly (unlike what happens in the linux driver and all FreeBSD > drivers for different > hardware), so it might well be that you are seeing some side effect of > that or other > problem which manifests itself differently depending on the environment. > > 'instant panic' by itself does not tell us anything about what could > be the problem you experience (and we do not see it with either driver).
The environment details are here: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=183391 The way I produce an instant panic is: 1) Connect to another machine (cross connect cable) 2) iperf3 -s on the other machine (The other machine is different, it has an "ix" card) 3) iperf3 -t 30 -P 4 -c 10.0.0.1 -N In less than 30 seconds, panic. mierda dumped core - see /var/crash/vmcore.0 Mon Jul 7 13:06:44 CEST 2014 FreeBSD mierda 10.0-STABLE FreeBSD 10.0-STABLE #2: Mon Jul 7 11:41:45 CEST 2014 root@mierda:/usr/obj/usr/src/sys/GENERIC amd64 panic: sbsndptr: sockbuf 0xfffff800a70489b0 and mbuf 0xfffff801a3326e00 clashing GNU gdb 6.1.1 [FreeBSD] Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "amd64-marcel-freebsd"... Unread portion of the kernel message buffer: panic: sbsndptr: sockbuf 0xfffff800a70489b0 and mbuf 0xfffff801a3326e00 clashing cpuid = 12 KDB: stack backtrace: #0 0xffffffff8092a470 at kdb_backtrace+0x60 #1 0xffffffff808ef9c5 at panic+0x155 #2 0xffffffff80962710 at sbdroprecord_locked+0 #3 0xffffffff80a8ba8c at tcp_output+0xdbc #4 0xffffffff80a8987f at tcp_do_segment+0x30ff #5 0xffffffff80a85b34 at tcp_input+0xd04 #6 0xffffffff80a1af57 at ip_input+0x97 #7 0xffffffff809ba512 at netisr_dispatch_src+0x62 #8 0xffffffff809b1ae6 at ether_demux+0x126 #9 0xffffffff809b278e at ether_nh_input+0x35e #10 0xffffffff809ba512 at netisr_dispatch_src+0x62 #11 0xffffffff81c19ab9 at oce_rx+0x3c9 #12 0xffffffff81c19536 at oce_rq_handler+0xb6 #13 0xffffffff81c1bb1c at oce_intr+0xdc #14 0xffffffff80938b35 at taskqueue_run_locked+0xe5 #15 0xffffffff809395c8 at taskqueue_thread_loop+0xa8 #16 0xffffffff808c057a at fork_exit+0x9a #17 0xffffffff80ccb51e at fork_trampoline+0xe Uptime: 51m20s Borja. _______________________________________________ firstname.lastname@example.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"