Thread (5 messages) flat view 5 messages, 2 authors, 2015-08-12

Re: [PATCH net] netconsole: Check for carrier before calling netpoll_send_udp()

From: David Miller <davem@davemloft.net>
Date: 2015-08-11 04:22:58
Also in: lkml

From: Jon Maxwell <redacted>
Date: Tue, 11 Aug 2015 11:32:26 +1000
We have seen a few crashes recently where a NIC is getting
reset for some reason and then the driver or another module calls
printk() which invokes netconsole. Netconsole then calls the
adapter specific poll routine via netpoll which crashes because 
the adapter is resetting and its structures are being reinitialized.
This isn't a fix.

What if the carrier check passes, and then the chip reset starts on
another cpu?  You'll have the same problem.

I'm not applying this, sorry.
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