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Re: [Xen-users] Badness in softirq.c / no modules loaded / related to network interface

On Fri, May 06, 2005 at 06:40:33PM +0200, sebastian@xxxxxxxxxxxxx wrote:
> I have a porblem with the unprivileged kernel. When I start my domain using 
> the unprivileged kernel I get the message:
> Badness in local_bh_enable at kernel/softirq.c:140
>  [<c011f3c0>] local_bh_enable+0x80/0x90
>  [<c0223089>] skb_checksum+0x129/0x2a0
>  [<c026736c>] udp_poll+0x9c/0x150
>  [<c021e409>] sock_poll+0x29/0x40
>  [<c016ba3e>] do_select+0x25e/0x2d0
>  [<c016b630>] __pollwait+0x0/0xd0
>  [<c016bd9f>] sys_select+0x2bf/0x4d0
>  [<c01093f4>] syscall_call+0x7/0xb

We are still having this problem too.  We only have it on some hosts,
not others so its related to some activity in the domUs - we haven't
figured out what though.  The backtrace suggests UDP traffic

I'm prety sure we didn't miscompile our modules - I disassembled them
to check for cli/sti.  The kernel was compiled using

  make-kpkg --arch xen --append_to_version -xen --revision=2.6.11 kernel_image

We see this with the e1000 driver, using kernel + debian
patches + xen stable 2.0.5, on dell poweredge 750 hardware.

No functionality appears to be affected, other than 1000s of these
messages in the log.

Nick Craig-Wood <nick@xxxxxxxxxxxxxx> -- http://www.craig-wood.com/nick

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