Thomas Gleixner wrote:
On Fri, 2006-12-08 at 20:40 +0100, Dirk Behme wrote:
eth0: SMC91C94 (rev 9) at c2850300 IRQ 160 [nowait]
eth0: Ethernet addr: 00:0e:99:02:02:42
nfs: server 192.0.0.1 not responding, still trying
NETDEV WATCHDOG: eth0: transmit timed out
That's not a latency. The transmit side of the driver seems not to work.
Can you please enable debugging in the SMC driver and provide the
output, maybe it's possible to deduce the cause of the problem from
that.
Seems that enabling SMC debugging slows down system in a way
that my testcase (playing MP3 via NFS) doesn't work any more.
Also please enable CONFIG_PROVE_LOCKING in the kernel hacking
section.
Looks like CONFIG_PROVE_LOCKING isn't available on ARM?
PROVE_LOCKING depens on STACKTRACE_SUPPORT &&
LOCKDEP_SUPPORT. These are available only on i386, x86_64
and MIPS?
Will now try Bruces' proposal and play with IRQ flags.
Thanks
Dirk
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