Re: -current 7.99.36 multicast panic: trap

[Kengo NAKAHARA <k-nakahara%iij.ad.jp@localhost>]

Hi,

On 2016/09/05 1:00, Frank Kardel wrote:
> running the -current (7.99.36) with 7.99.16 userland reliably traps at:
> 
> src/sys/netinet/ip_mroute.c:1751
> 
> on an multi-homed i386 system running mrouted.
> 
> A 7.99.16 kernel survives that fine. Do we have a userland dependency or 
> is this a new regression from the network stack multiprocessing changes?

There is no userland dependency of ip_mroute.c 7.99.16 to 7.99.36
modifications. I think it may be new regression. Could you show below
additional information?
    - backtrace at panic
    - your kernel config
      # GENERIC config seems to disable MROUTING by default, so I think
      # you would use custom kernel config.
    - detail reproduction code
    - "netstat -g" and "netstat -nr -f inet" if it is possible before panic


Thanks,

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Internet Initiative Japan Inc.

Device Engineering Section,
IoT Platform Development Department,
Network Division,
Technology Unit

Kengo NAKAHARA <k-nakahara%iij.ad.jp@localhost>