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Date:      Wed, 14 Jun 2017 16:46:23 +0200
From:      Peter Holm <peter@holm.cc>
To:        Sean Bruno <sbruno@freebsd.org>
Cc:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   Re: svn commit: r319921 - head/sys/net
Message-ID:  <20170614144623.GA96234@x2.osted.lan>
In-Reply-To: <dd626c3e-ce42-7359-717b-21ee1ef1d10d@freebsd.org>
References:  <201706132316.v5DNGdF2042725@repo.freebsd.org> <20170614091758.GA86374@x2.osted.lan> <dd626c3e-ce42-7359-717b-21ee1ef1d10d@freebsd.org>

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On Wed, Jun 14, 2017 at 08:38:36AM -0600, Sean Bruno wrote:
> 
> 
> On 06/14/17 03:17, Peter Holm wrote:
> > On Tue, Jun 13, 2017 at 11:16:39PM +0000, Sean Bruno wrote:
> >> Author: sbruno
> >> Date: Tue Jun 13 23:16:38 2017
> >> New Revision: 319921
> >> URL: https://svnweb.freebsd.org/changeset/base/319921
> >>
> >> Log:
> >>   Add new sysctl to allow changing of timing of the txq timers.
> >>   
> >>   Add new sysctl to override use of busdma in the driver.
> >>   
> >>   Submitted by:	Drew Gallitin <gallatin@netflix.com>
> >>
> >> Modified:
> >>   head/sys/net/iflib.c
> >>
> >> Modified: head/sys/net/iflib.c
> >> ==============================================================================
> >> --- head/sys/net/iflib.c	Tue Jun 13 22:57:57 2017	(r319920)
> > 
> > Could this be yours?
> > 
> > panic: Assertion ifsd_m[next] == NULL failed at ../../../net/iflib.c:2927
> > cpuid = 12
> > time = 1497431647
> > KDB: stack backtrace:
> > db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe104fa993d0
> > vpanic() at vpanic+0x19c/frame 0xfffffe104fa99450
> > kassert_panic() at kassert_panic+0x126/frame 0xfffffe104fa994c0
> > iflib_txq_drain() at iflib_txq_drain+0xdf0/frame 0xfffffe104fa99640
> > drain_ring_lockless() at drain_ring_lockless+0xc0/frame 0xfffffe104fa996a0
> > ifmp_ring_enqueue() at ifmp_ring_enqueue+0x32e/frame 0xfffffe104fa99710
> > iflib_if_transmit() at iflib_if_transmit+0xb0/frame 0xfffffe104fa99750
> > ether_output() at ether_output+0x750/frame 0xfffffe104fa997f0
> > ip_output() at ip_output+0x14c3/frame 0xfffffe104fa99930
> > tcp_output() at tcp_output+0xf8c/frame 0xfffffe104fa99ad0
> > tcp_usr_send() at tcp_usr_send+0x3bd/frame 0xfffffe104fa99b40
> > sosend_generic() at sosend_generic+0x3ba/frame 0xfffffe104fa99bf0
> > clnt_vc_call() at clnt_vc_call+0x4b8/frame 0xfffffe104fa99d40
> > clnt_reconnect_call() at clnt_reconnect_call+0xe8/frame 0xfffffe104fa99de0
> > newnfs_request() at newnfs_request+0x1092/frame 0xfffffe104fa99f60
> > nfscl_request() at nfscl_request+0x5b/frame 0xfffffe104fa99fb0
> > nfsrpc_lookup() at nfsrpc_lookup+0x211/frame 0xfffffe104fa9a120
> > nfs_lookup() at nfs_lookup+0x463/frame 0xfffffe104fa9a460
> > VOP_LOOKUP_APV() at VOP_LOOKUP_APV+0xfe/frame 0xfffffe104fa9a490
> > lookup() at lookup+0x6e2/frame 0xfffffe104fa9a530
> > namei() at namei+0x534/frame 0xfffffe104fa9a5f0
> > kern_statat() at kern_statat+0x9b/frame 0xfffffe104fa9a800
> > freebsd11_lstat() at freebsd11_lstat+0x33/frame 0xfffffe104fa9a980
> > amd64_syscall() at amd64_syscall+0x564/frame 0xfffffe104fa9aab0
> > Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe104fa9aab0
> > --- syscall (190, FreeBSD ELF64, freebsd11_lstat), rip = 0x800910c7a, rsp = 0x7fffffffaed8, rbp = 0x7fffffffaf00 --
> > 
> > - Peter
> > 
> > 
> 
> 
> Is this new of this morning (after I committed updates yesterday)?
> 
> sean
> 

It's with r319940M. I'm now using r319919 without this issue.

Here's the full boot log: https://people.freebsd.org/~pho/iflib.txt

- Peter



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