Date: Fri, 23 Sep 2016 16:05:04 +0200 From: Peter Holm <peter@holm.cc> To: Lawrence Stewart <lstewart@freebsd.org> Cc: net@freebsd.org Subject: Re: panic: SACK scoreboard must not be empty Message-ID: <20160923140504.GA84225@x2.osted.lan> In-Reply-To: <5538219C.7090600@freebsd.org> References: <20150415110401.GA26326@x2.osted.lan> <5536FD31.40000@freebsd.org> <20150422091958.GA81930@x2.osted.lan> <5538219C.7090600@freebsd.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, Apr 23, 2015 at 08:33:00AM +1000, Lawrence Stewart wrote: > On 04/22/15 19:19, Peter Holm wrote: > > On Wed, Apr 22, 2015 at 11:45:21AM +1000, Lawrence Stewart wrote: > >> Hi Peter, > >> > >> On 04/15/15 21:04, Peter Holm wrote: > >>> Seen during i386 stress tests. > >>> > >>> db_trace_self_wrapper(c11e20fc,0,c11b79d4,1eb,e47578e0,...) at db_trace_self_wrapper+0x2a/frame 0xe47578b0 > >>> kdb_backtrace(c139e637,2,c120851d,e4757984,e4757940,...) at kdb_backtrace+0x2d/frame 0xe4757918 > >>> vpanic(c155b86a,100,c120851d,e4757984,e4757984,...) at vpanic+0x11d/frame 0xe4757954 > >>> kassert_panic(c120851d,0,8,164,16,...) at kassert_panic+0xe6/frame 0xe4757978 > >>> tcp_sack_doack(e047d900,e4757a48,e9eeab30,5f8,c15a9298,...) at tcp_sack_doack+0x405/frame 0xe47579f0 > >>> tcp_do_segment(df801720,e047d900,40,0,0,...) at tcp_do_segment+0x21c2/frame 0xe4757aa0 > >>> tcp_input(e4757bec,e4757be8,6,0,e4757be8,...) at tcp_input+0xfbc/frame 0xe4757ba0 > >>> ip_input(e1cb5800,0,c11f6228,2f0,45,...) at ip_input+0x17c/frame 0xe4757c0c > >>> swi_net(c1c25880,c11d6fed,54f,8f6da840,c8a209c8,...) at swi_net+0x1a3/frame 0xe4757c4c > >>> intr_event_execute_handlers(c156a310,c8a20980,c11d6fed,54f,0,...) at intr_event_execute_handlers+0xdb/frame 0xe4757c74 > >>> ithread_loop(c88d4f50,e4757ce8,c11d6d7c,3dc,0,...) at ithread_loop+0x87/frame 0xe4757cac > >>> fork_exit(c0b2c9d0,c88d4f50,e4757ce8) at fork_exit+0x7e/frame 0xe4757cd4 > >>> fork_trampoline() at fork_trampoline+0x8/frame 0xe4757cd4 > >>> > >>> Details: > >>> https://people.freebsd.org/~pho/stress/log/kostik794.txt > >>> > >> > >> >From the looks of the log, you don't have a core? > >> > > > > Sure, I have. > > https://people.freebsd.org/~pho/kernel+vmcore.792.txz > > > > Oh, great. For some reason I thought I saw a filesystem full message > related to capturing the dump in the log, but it was just my brain > playing tricks on me :) > > I'll take a look at this panic. Thanks for the report and crash dump. > > Cheers, > Lawrence Lawrence, I can reproduce this on a i386 kernel, without too much trouble. It is probably worth noting that the test box is out of VM: vm_cnt.v_free_count: 2. Latest panic: https://people.freebsd.org/~pho/stress/log/nfs9-2.txt http://people.freebsd.org/~pho/kernel+vmcore.959.txz -- Peter
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20160923140504.GA84225>