LOR in iflib_timer
Stephen Hurd
shurd at sasktel.net
Tue Oct 31 02:10:09 UTC 2017
Eric van Gyzen wrote:
> Twice a day, my router hits an LOR in iflib_timer when it jumps to the
> "hung" label. It's running r325049 (head 3 days ago).
>
> lock order reversal:
> 1st 0xfffffe0000f36068 igb1:tx(0):call (igb1:tx(0):call) @
> /usr/src/sys/kern/kern_mutex.c:182
> 2nd 0xfffff80003b0c150 igb1 (iflib ctx lock) @
> /usr/src/sys/net/iflib.c:2139
>
> This looks like it was fixed by the big rollup. If it was fixed by a
> smallish commit, can that commit alone be merged to head? If someone
> can point me to the commit, I'd be happy to test it.
>
> Eric
I would guess it to be one of the biggest ones. Review here:
https://reviews.freebsd.org/D12101
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