svn commit: r353292 - in head/sys: contrib/ipfilter/netinet dev/firewire dev/iicbus dev/usb/net kern net netgraph netinet netinet6 netipsec netpfil/ipfw netpfil/pf ofed/drivers/infiniband/ulp/ipoib

[Peter Holm]

On Mon, Oct 07, 2019 at 10:40:06PM +0000, Gleb Smirnoff wrote:
> Author: glebius
> Date: Mon Oct  7 22:40:05 2019
> New Revision: 353292
> URL: https://svnweb.freebsd.org/changeset/base/353292
> 
> Log:
>   Widen NET_EPOCH coverage.
>   

This seems to trigger this:

Autoloading module: uhid.ko
Autoloading module: ums.ko
ums0 on uhub4
ums0: <vendor 0x0557 product 0x2419, class 0/0, rev 1.10/1.00, addr 2> on usbus0
ums0: 3 buttons and [Z] coordinates ID=0
Starting dhclient.
DHCPREQUEST on igb0 to 255.255.255.255 port 67
DHCPACK from 192panic: Assertion in_epoch(net_epoch_preempt) failed at ../../../net/if.c:3694
cpuid = 1
time = 1570517532
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe00addc28b0
vpanic() at vpanic+0x19d/frame 0xfffffe00addc2900
panic() at panic+0x43/frame 0xfffffe00addc2960
if_delmulti_ifma_flags() at if_delmulti_ifma_flags+0x141/frame 0xfffffe00addc2990
inm_release_task() at inm_release_task+0x1ac/frame 0xfffffe00addc29f0
gtaskqueue_run_locked() at gtaskqueue_run_locked+0xf9/frame 0xfffffe00addc2a40
gtaskqueue_thread_loop() at gtaskqueue_thread_loop+0x88/frame 0xfffffe00addc2a70
fork_exit() at fork_exit+0x84/frame 0xfffffe00addc2ab0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe00addc2ab0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 0 tid 100019 ]
Stopped at      kdb_enter+0x3b: movq    $0,kdb_why
db> x/s version
version:        FreeBSD 13.0-CURRENT #0 r353292: Tue Oct  8 08:45:15 CEST 2019\012    pho at mercat1.netperf.freebsd.org:/usr/src/sys/amd64/compile/PHO\012
db>

- Peter