kernel-packages team mailing list archive

[sodabrew <1291113@xxxxxxxxxxxxxxxxxx>]

Hey, so heads up that this absolutely does affect kernel 3.2.0-60.

Per the changelog here:
http://changelogs.ubuntu.com/changelogs/pool/main/l/linux/linux_3.2.0-60.91/changelog

This commit was added:
  * net_dma: mark broken
    - LP: #1281620

According to the commit message for "ioat: fix tasklet tear down" it is
that net_dma commit which activates the bug. Please include the
necessary fix in 3.2.0-61, or back out the triggering change as needed.

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https://bugs.launchpad.net/bugs/1291113

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

Status in “linux” package in Ubuntu:
  Triaged

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

  https://lkml.org/lkml/2014/2/19/658

  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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