David Miller wrote:
From: "Brandeburg, Jesse" <[EMAIL PROTECTED]> Date: Thu, 23 Oct
2008 14:50:06 -0700
Chris Friesen wrote:
I tried booting a post 2.6.27 -git on a Motorola ATCA6101 (very similar
to a Maple board). The first time I booted I got the first log below
via the serial console. I rebooted and got as far as a login prompt.
I was able to log in via the serial console, but then got an almost
identical oops again, as shown in the second log below.
I configed out the gigE drivers for the backplane so the only remaining
network link was the e100 link used for booting, but the problem
remained.
Anyone have any idea what might be causing this?
Thanks,
Chris
Starting xinetd: [ OK ] Starting cron: [ OK ] Unable to handle
kernel paging request for data at address 0x00100108
that 00100108 pattern looks familiar, I'm not much help here, but I think
that had something to do with the list management of the poll_list in a
netdev struct.
so now you just have to figure out why someone's netdev struct is
becoming NULL. :-)
Usually this is an indication of returning the wrong value from the
driver's ->poll() routine.
Looks like I was wrong before...the remaining ethernet link is an AMD-8111,
not an e100. Sorry about that.
I backed out 6ba33ac "amd8111e: delete non NAPI code from the driver". With
NAPI disabled, the blade appears stable. With NAPI enabled, the original
problem recurred.
So...it would appear that the NAPI code is somehow buggy, and 6ba33ac should
probably be reverted until the problem is found and fixed.
Chris
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