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Subjecte1000e: why does pci_enable_pcie_error_reporting() fail on my hp2510p?
Date
With the current kernel I suddenly get the following error displayed
during boot:
e1000e: Intel(R) PRO/1000 Network Driver - 1.0.2-k2
e1000e: Copyright (c) 1999-2008 Intel Corporation.
e1000e 0000:00:19.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
! e1000e 0000:00:19.0: pci_enable_pcie_error_reporting failed 0xfffffffb
e1000e 0000:00:19.0: setting latency timer to 64
e1000e 0000:00:19.0: irq 26 for MSI/MSI-X

This looks to be the consequence of:
commit 68eac4602b9104cdaa6c18b3edd914cececa6a1e
Author: Xiaotian Feng <dfeng@redhat.com>
Date: Fri Aug 14 14:35:52 2009 +0000
e1000e: fix use of pci_enable_pcie_error_reporting

Looking at the change it seems logical that this error, that I previously
only saw during resumes from suppend to RAM, now also shows up during
system boot. So I don't think it can be qualified as a regression, but it
is certainly rather annoying.

Questions:
- is it possible that the error occurs due to a kernel bug, or is this
certain to be due to broken hardware?
- as the error is non-fatal, should it maybe be changed from dev_err
to dev_info, so that at least it does not show up during a boot
with 'quiet'?
- if broken hardware is common, should the kernel complain at all,
or at least maybe show a slightly "friendlier" message?

System: hp2510p (ICH8, Core2 Duo) running x86_64, Debian stable ("Lenny")

00:19.0 Ethernet controller [0200]: Intel Corporation 82566MM
Gigabit Network Connection [8086:1049] (rev 03)
Subsystem: Hewlett-Packard Company Device 30c9
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 26
Region 0: Memory at e0620000 (32-bit, non-prefetchable) [size=128K]
Region 1: Memory at e0640000 (32-bit, non-prefetchable) [size=4K]
Region 2: I/O ports at 2060 [size=32]
Capabilities: [c8] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [d0] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable+
Address: 00000000fee0300c Data: 41b1
Kernel driver in use: e1000e
Kernel modules: e1000e

I can provide full dmesg and kernel config if desired.

Cheers,
FJP


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