On 27/01/15 16:45, Wei Liu wrote: > On Tue, Jan 27, 2015 at 04:03:52PM +0000, Julien Grall wrote: >> Hi, >> >> While I'm working on support for 64K page in netfront, I got >> an rcu_sced self-detect message. It happens when netback is >> disabling the vif device due to an error. >> >> I'm using Linux 3.19-rc5 on seattle (ARM64). Any idea why >> the processor is stucked in xenvif_rx_queue_purge? >> > > When you try to release a SKB, core network driver need to enter some > RCU cirital region to clean up. dst_release for one, calls call_rcu.
But this message shouldn't happen in normal condition or because of netfront. Right? Regards, -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel