Re: sky2 panic in 2.6.32.1 under load (new oops)
From: Michael Breuer
Date: Wed Dec 30 2009 - 10:37:18 EST
What has been running on eth0 (usual for me ... perhaps relevant to the
issue) when I've seen the errors. As noted previously, there is a
correlation with dhcp, and maybe one with dns over ipv6.
Console is local (nouveau kms).
As per Stephen's other email, I'm rerunning with kernel debug enabled.
I'll also try nomodeset and could if need by (but a real PITA) can swap
video cards with an ATI card.
ipv6
appletalk
dhcpd
smb
dns (bind9)
X11 (accessing box via cygwin)
sendmail
imap
mediatomb
On 12/30/2009 3:07 AM, Stephen Hemminger wrote:
On Wed, 23 Dec 2009 23:01:02 -0800
Andrew Morton<akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
Dec 23 17:32:58 mail kernel: DRHD: handling fault status reg 2
Dec 23 17:32:58 mail kernel: DMAR:[DMA Read] Request device [06:00.0]
fault addr fff8423fe000
Dec 23 17:32:58 mail kernel: DMAR:[fault reason 06] PTE Read access is
not set
Dec 23 17:32:58 mail kernel: sky2 0000:06:00.0: error interrupt
status=0x80000000
Dec 23 17:32:58 mail kernel: sky2 0000:06:00.0: PCI hardware error (0x2010)
Dec 23 17:33:06 mail kernel: ------------[ cut here ]------------
Dec 23 17:33:06 mail kernel: WARNING: at net/sched/sch_generic.c:255
dev_watchdog+0xf3/0x161()
Dec 23 17:33:06 mail kernel: Hardware name: System Product Name
Dec 23 17:33:06 mail kernel: NETDEV WATCHDOG: eth0 (sky2): transmit
Just to reiterate, these are consistent with a DMA error on transmit.
Since is 4 seconds after the DHCPACK, they probably are not related, except
that when DHCP renew may have caused more traffic.
Are you using something like network console or kgdb, or anything that could
be using some unusual network I/O?
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