https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=148807
Daniel Bilik <d...@neosystem.org> changed:
What |Removed |Added
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CC| |d...@neosystem.org
--- Comment #32 from Daniel Bilik <d...@neosystem.org> ---
(In reply to Robert Watson from comment #29)
> On the whole, my intuition is towards a device-driver bug based
> on past experience.
We've been also struggling this in past weeks, and I can confirm Robert's
intuition.
In our case, the bug affects two hosts running recent 10-STABLE, connected to
each other via igb(4) using a dedicated 100Mb switch. When trying to transfer
directory structure holding several gigabytes of data with rsync protocol,
either sender or receiver panics in less then a minute with:
Panic String: sbsndptr: sockbuf 0xfffff8000ccc76f8 and mbuf 0xfffff802a0145800
clashing
Interestingly, scp(1)ing data between the hosts doesn't seem to trigger this
panic such easily, but sometimes it does, mostly when copying larger (>1GB)
files.
We've fixed this just yesterday by limiting number of igb(4) txrx queues, ie.
adding this into loader.conf:
hw.igb.num_queues=1
Now the hosts run stable, periodically rsyncing data in both directions.
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