netxen: BUG: sleeping function called from invalid context at include/linux/netdevice.h:476
From: Mike Galbraith
Date: Thu Sep 25 2014 - 10:21:46 EST
Greetings,
While testing some sched patches that require CONFIG_DEBUG_ATOMIC_SLEEP,
the below fell out.
/etc/init.d/network restart -> gripe
[ 97.850408] BUG: sleeping function called from invalid context at include/linux/netdevice.h:476
[ 97.941177] in_atomic(): 1, irqs_disabled(): 0, pid: 6458, name: ip
[ 98.012784] Preemption disabled at:[<ffffffffa0509719>] __netxen_nic_down+0x79/0x1b0 [netxen_nic]
[ 98.047283]
[ 98.047289] CPU: 63 PID: 6458 Comm: ip Tainted: G E 3.17.0-default #7
[ 98.047291] Hardware name: Hewlett-Packard ProLiant DL980 G7, BIOS P66 07/07/2010
[ 98.047295] 00000000ffffffff ffff88003702f528 ffffffff81589dbd 0000000000000000
[ 98.047301] ffff88026ee96210 ffff88003702f548 ffffffff8108e1df ffff88026ee96210
[ 98.047305] 0000000000000000 ffff88003702f578 ffffffff8108e298 ffff88026bf89c38
[ 98.047307] Call Trace:
[ 98.047313] [<ffffffff81589dbd>] dump_stack+0x4d/0x90
[ 98.047331] [<ffffffff8108e1df>] ___might_sleep+0x10f/0x180
[ 98.047343] [<ffffffff8108e298>] __might_sleep+0x48/0xd0
[ 98.047348] [<ffffffffa0506d54>] netxen_napi_disable+0x84/0xe0 [netxen_nic]
[ 98.047353] [<ffffffffa05097f0>] __netxen_nic_down+0x150/0x1b0 [netxen_nic]
[ 98.047367] [<ffffffffa0509b0b>] netxen_nic_close+0x1b/0x20 [netxen_nic]
[ 98.047375] [<ffffffff814aa525>] __dev_close_many+0x95/0xe0
[ 98.047379] [<ffffffff814aa5a6>] __dev_close+0x36/0x50
[ 98.047384] [<ffffffff814ab89c>] __dev_change_flags+0xac/0x180
[ 98.047389] [<ffffffff814ab9a7>] dev_change_flags+0x37/0x80
[ 98.047398] [<ffffffff814be874>] do_setlink+0x244/0x7e0
[ 98.047403] [<ffffffff814c0310>] rtnl_newlink+0x5a0/0x7d0
[ 98.047408] [<ffffffff814bfeba>] ? rtnl_newlink+0x14a/0x7d0
[ 98.047421] [<ffffffff8105259c>] ? __do_page_fault+0x2ac/0x520
[ 98.047431] [<ffffffff812a14a0>] ? apparmor_capable+0x20/0x60
[ 98.047436] [<ffffffff814bf981>] rtnetlink_rcv_msg+0xa1/0x240
[ 98.047446] [<ffffffff81308f86>] ? rhashtable_lookup_compare+0x46/0x70
[ 98.047451] [<ffffffff814bf8e0>] ? __rtnl_unlock+0x20/0x20
[ 98.047463] [<ffffffff814dc3d9>] netlink_rcv_skb+0x89/0xb0
[ 98.047466] [<ffffffff814bfb7c>] rtnetlink_rcv+0x2c/0x40
[ 98.047468] [<ffffffff814dbdc9>] netlink_unicast+0x119/0x180
[ 98.047473] [<ffffffff81306a3c>] ? memcpy_fromiovec+0x6c/0x90
[ 98.047477] [<ffffffff814dc7c0>] netlink_sendmsg+0x3c0/0x450
[ 98.047487] [<ffffffff8149449c>] sock_sendmsg+0x9c/0xd0
[ 98.047497] [<ffffffff810aa113>] ? __wake_up+0x53/0x70
[ 98.047502] [<ffffffff8108e298>] ? __might_sleep+0x48/0xd0
[ 98.047509] [<ffffffff814a204e>] ? verify_iovec+0x5e/0xf0
[ 98.047512] [<ffffffff81494df6>] ___sys_sendmsg+0x436/0x440
[ 98.047515] [<ffffffff8108e298>] ? __might_sleep+0x48/0xd0
[ 98.047523] [<ffffffff81194513>] ? might_fault+0x43/0x50
[ 98.047525] [<ffffffff81491eef>] ? copy_to_user+0x2f/0x40
[ 98.047528] [<ffffffff814951cc>] ? ___sys_recvmsg+0x19c/0x310
[ 98.047531] [<ffffffff8105259c>] ? __do_page_fault+0x2ac/0x520
[ 98.047538] [<ffffffff8119e681>] ? __vma_link_rb+0x101/0x120
[ 98.047544] [<ffffffff8119fef8>] ? do_brk+0x1c8/0x340
[ 98.047550] [<ffffffff814924a2>] ? SyS_getsockname+0xb2/0xc0
[ 98.047555] [<ffffffff81494fd9>] __sys_sendmsg+0x49/0x80
[ 98.047558] [<ffffffff81495029>] SyS_sendmsg+0x19/0x20
[ 98.047567] [<ffffffff8158f7a9>] system_call_fastpath+0x16/0x1b
(gdb) list *__netxen_nic_down+0x79
0x8749 is in __netxen_nic_down (drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c:1190).
1185 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1186 return;
1187
1188 smp_mb();
1189 spin_lock(&adapter->tx_clean_lock);
1190 netif_carrier_off(netdev);
1191 netif_tx_disable(netdev);
1192
1193 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1194 netxen_linkevent_request(adapter, 0);
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