On Friday 06 August 2010 21:05:05 Luis R. Rodriguez wrote: > On Fri, Aug 6, 2010 at 6:50 AM, John W. Linville <linville@xxxxxxxxxxxxx> wrote: > > On Thu, Aug 05, 2010 at 03:31:06PM -0700, Luis R. Rodriguez wrote: > >> I just ran into this. My first load of master-2010-08-05 was fine but > >> I started getting a lot of disconnects on AR9003 hardware after a > >> period of RX'ing data over an encrypted legacy network. Instead of > >> checking dmesg I just rebooted though. After that I connected to the > >> same AP again, started Rx'ing for a while and then shortly got this: > >> > >> > >> [ 818.749585] BUG: unable to handle kernel paging request at 00003f3f00000000 > >> [ 818.749594] IP: [<ffffffff814ee0d8>] unix_stream_recvmsg+0x3f8/0x790 > > > >> After a reboot I got a hard hang which I could not capture any logs > >> for. I rebooted and am up now but not seeing these issues yet. John, > >> does this smell like what you were seeing or is this different? > > > > Yeah, I'm seeing that too. There is some netdev stuff in > > wireless-testing at the moment that I suspect was undercooked... > > > > Sorry for the inconvenience while this gets sorted-out! > > Ah no problem, just wanted to see if I should dig into ath9k or not, > sounds like I don't. FWIW I had a hang overnight as well. > > Luis > -- I got this from slub_debug: [ 2857.899976] phy2: device now idle [ 2857.904032] ============================================================================= [ 2857.909760] cfg80211: Calling CRDA to update world regulatory domain [ 2857.917337] BUG kmalloc-4096: Object already free [ 2857.917337] ----------------------------------------------------------------------------- [ 2857.917337] [ 2857.917337] INFO: Allocated in wireless_send_event+0x22a/0x34a age=4 cpu=1 pid=7527 [ 2857.917337] INFO: Freed in __kfree_skb+0x11/0x73 age=4 cpu=0 pid=14852 [ 2857.917337] INFO: Slab 0xffffea0002512e80 objects=7 used=5 fp=0xffff8800a97b0000 flags=0x40000000000040c3 [ 2857.917337] INFO: Object 0xffff8800a97b0000 @offset=0 fp=0xffff8800a97b1048 [ 2857.917337] [ 2857.917337] Object 0xffff8800a97b0000: 6b 6b 6b 6b 6b 6b [...] [ 2857.917337] Pid: 9472, comm: avahi-daemon Tainted: P C 2.6.35-wl+ #3 [ 2857.917337] Call Trace: [ 2857.917337] [<ffffffff810971f0>] ? __slab_free+0x27a/0x34e [ 2857.917337] [<ffffffff810983f9>] ? kfree+0x94/0x9a [ 2857.917337] [<ffffffff812fe93c>] ? __kfree_skb+0x11/0x73 [ 2857.917337] [<ffffffff8131f126>] ? netlink_recvmsg+0xd5/0x377 [ 2857.917337] [<ffffffff810ab63a>] ? pollwake+0x0/0x4e [ 2857.917337] [<ffffffff812f690a>] ? sock_recvmsg+0xc9/0xe6 [ 2857.917337] [<ffffffff810ab63a>] ? pollwake+0x0/0x4e [ 2857.917337] [<ffffffff810ab63a>] ? pollwake+0x0/0x4e [ 2857.917337] [<ffffffff81300a74>] ? verify_iovec+0x46/0x82 [ 2857.917337] [<ffffffff812f7cc0>] ? __sys_recvmsg+0x138/0x20e [ 2857.917337] [<ffffffff812f8ef9>] ? sock_ioctl+0x1f3/0x1fc [ 2857.917337] [<ffffffff810a9552>] ? vfs_ioctl+0x23/0x93 [ 2857.917337] [<ffffffff81048075>] ? ktime_get_ts+0x66/0xab [ 2857.917337] [<ffffffff812f803b>] ? sys_recvmsg+0x39/0x5b [ 2857.917337] [<ffffffff81001f2b>] ? system_call_fastpath+0x16/0x1b [ 2857.917337] FIX kmalloc-4096: Object at 0xffff8800a97b0000 not freed It looks somewhat similar to Luis bug-report, but it would point to a double-free bug in cfg80211?! -- 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
