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[Bug 1291113] Re: Intel igb driver infinite loop in ksoftirqd, uses 100% of cpu 0


Can you give the kernel a test, to confirm it fixes this bug?  It can be downloaded from:

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Tags added: bot-stop-nagging kernel-bug-exists-upstream saucy

** Changed in: linux (Ubuntu)
       Status: Confirmed => Triaged

** Tags added: kernel-da-key

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  Intel igb driver infinite loop in ksoftirqd, uses 100% of cpu 0

Status in “linux” package in Ubuntu:

Bug description:
  This bug is present in 3.11.0-17 and 3.11.0-18:


  The afflicted network interface's lspci output:

  02:00.0 Ethernet controller: Intel Corporation I350 Gigabit Network Connection (rev 01)
  	Subsystem: Super Micro Computer Inc Device 1521
  	Flags: bus master, fast devsel, latency 0, IRQ 27
  	Memory at df920000 (32-bit, non-prefetchable) [size=128K]
  	I/O ports at 8020 [size=32]
  	Memory at df944000 (32-bit, non-prefetchable) [size=16K]
  	Capabilities: [40] Power Management version 3
  	Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
  	Capabilities: [70] MSI-X: Enable+ Count=10 Masked-
  	Capabilities: [a0] Express Endpoint, MSI 00
  	Capabilities: [100] Advanced Error Reporting
  	Capabilities: [140] Device Serial Number 00-xx-xx-xx-xx-xx-xx-xx
  	Capabilities: [150] Alternative Routing-ID Interpretation (ARI)
  	Capabilities: [160] Single Root I/O Virtualization (SR-IOV)
  	Capabilities: [1a0] Transaction Processing Hints
  	Capabilities: [1c0] Latency Tolerance Reporting
  	Capabilities: [1d0] Access Control Services
  	Kernel driver in use: igb
  	Kernel modules: igb

  [I have masked out the MAC address]

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