Thread (87 messages) 87 messages, 5 authors, 2014-01-14

Re: [Ilw] Intel Wireless 7260 hardware timed out randomly

From: Bjorn Helgaas <bhelgaas@google.com>
Date: 2013-11-08 17:20:48
Also in: linux-pci

On Wed, Nov 6, 2013 at 9:49 PM, wzyboy [off-list ref] wrote:
2013/11/7 Bjorn Helgaas [off-list ref]:
quoted
Do you have any more details?  Maybe open a bugzilla.kernel.org report
and attach:

  - complete dmesg log
  - lspci -vvxxx output for entire system before issue occurs
  - lspci -vvxxx output for entire system after issue occurs

Hi, I have filed a bug on bugzilla:
https://bugzilla.kernel.org/show_bug.cgi?id=64541

Actually I have posted some more logs before, you could find them on
the mailing lists archive:
http://thread.gmane.org/gmane.linux.kernel.wireless.general/115259

Here is the output of lspci -vxxxx just now. I'll run this command
again when the bug occurs next time:
Thanks.  But can you please attach the output of "lspci -vvxxx" (not
"-vxxxx") for the entire system before the problem occurs?  All the
info is in the "-xxxx" output, but it's really painful to decode it
all by hand.  Using "-vv" will decode the PCIe Capability structures
where the ASPM configuration is.  And the entire system is
interesting, because ASPM requires configuration on upstream bridges
as well as on the device itself.

My only guess is that there's something wrong with the ASPM
configuration and the device just stops responding to config accesses
(and probably MMIO accesses, too, based on the errors in your dmesg
log).  Or maybe the device got powered off somehow.

Bjorn
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