[Bug 246951] carp(4): Active CARP member crashes: panic, trap_pfault, ip_input || ip_output when using ipSec, AES-NI (on Intel I350)
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Tue Jun 30 16:04:14 UTC 2020
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=246951
Ryan Moeller <freqlabs at FreeBSD.org> changed:
What |Removed |Added
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CC| |freqlabs at FreeBSD.org
--- Comment #15 from Ryan Moeller <freqlabs at FreeBSD.org> ---
I have a FreeNAS bug report where ifa_addr is NULL on 11.3, too. I was
suspecting some local patches we have for dealing with various IGMP / multicast
issues, but I did not find anything in auditing those patches. I haven't found
any way to explain ifa_addr being NULL in an ifma that is still linked into a
list.
In my user's case the panic is cropping up in igmp_fasttimo. Though the
circumstances are different, I wonder if these may be caused by the same
underlying problem.
One thing I have thought to double-check next is making sure that the maddr
locks match up with the correct ifp everywhere the list is modified.
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