tree 00f2ca9dd83a136c47d2d4d93a753d0f822f304e
parent 73e3dd6b45c4c870fc2641eb04c24e3f12dab1e0
author Bruce Allan <bruce.w.allan@intel.com> 1366436249 +0000
committer Jeff Kirsher <jeffrey.t.kirsher@intel.com> 1366940396 -0700

e1000e: panic caused by Rx traffic arriving while interface going down

An "unable to handle kernel paging request" panic can occur when receiving
traffic while the interface is going down.  Wait for NAPI to be done with
current context after disabling interrupts and then disable NAPI.

See https://bugzilla.vyatta.com/show_bug.cgi?id=8837.

Reported-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>