On Jul 17, 2012, at 10:41 AM, Rustad, Mark D wrote: > On Jul 17, 2012, at 9:01 AM, David Miller wrote: > >> Linus was _extremely_ generous and took in all the stuff that was >> pending in the net tree just now. > > Maybe *too* generous. :-) I just updated and when I boot I get an early crash in update_netdev_tables which is in netprio_cgroup.c. > >> Besides very serious issues, I'm not willing to consider any more bug >> fixes for the 'net' tree at this time. > > I think the above issue will have to be fixed, as it completely prevents booting for any kernel that includes the netprio_cgroup option. > >> Only one pending known bug qualifies, and that's the CIPSO ip option >> processing OOPS'er. And I'll work on that myself if Paul Moore >> doesn't show a sign of life in the next day. >> >> Thanks. > > > I can start taking a look at this if you like, but I see that Gao feng has two patches in the last set of patches that may be related. > > To give you an idea how early the crash is, here are a few log messages leading up to it: > > [ 0.003455] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes) > [ 0.005550] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes) > [ 0.007165] Mount-cache hash table entries: 256 > [ 0.010289] Initializing cgroup subsys net_cls > [ 0.010947] Initializing cgroup subsys net_prio > [ 0.011039] BUG: unable to handle kernel NULL pointer dereference at 0000000000000828 > [ 0.011998] IP: [<ffffffff814202c8>] update_netdev_tables+0x68/0xe0 I found that I can avoid the crash by configuring the netprio_cgroup as a module. I don't need to have it built in, I just happened to. This finding may lower the temperature of this issue a lot from what I had been feeling. -- Mark Rustad, LAN Access Division, Intel Corporation -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
