Hello, When i use the pptp client to dial to remote， plug and pull the interface at sometimes, this may occur. My kernel is 3.3(openwrt). Later, when i use the vlan interface to do the pppoe dialing, it occurs again. Can anyone help me? Think you! [ 1548.018990] BUG: soft lockup - CPU#0 stuck for 41s! [pppd:21042] [ 1548.018990] [ 1548.018990] Pid: 21042, comm: pppd Tainted: G O 3.3.8 #5 [ 1548.018990] EIP: 0060:[<c14c4a9e>] EFLAGS: 00000297 CPU: 0 [ 1548.018990] EIP is at _raw_spin_lock_bh+0x1e/0x30 [ 1548.018990] EAX: 00000013 EBX: f51a4e5c ECX: f57b39c0 EDX: 00000014 [ 1548.018990] ESI: f52f33c0 EDI: f51a4e5c EBP: 00000038 ESP: f4493da0 [ 1548.018990] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [ 1548.018990] Process pppd (pid: 21042, ti=f4492000 task=f505b960 task.ti=f4492000) [ 1548.018990] Stack: [ 1548.018990] f51a4e68 f8bc9cca f8bee948 00000032 00000000 00000000 0000c020 f521682a [ 1548.018990] 00000032 f7f092c2 0000082a f57b39c0 00000000 00000000 f7f0e102 00000246 [ 1548.018990] 00000038 00000246 0001250d 00000246 0004eb4e f8bca560 f52f33c0 f57b39c0 [ 1548.018990] Call Trace: [ 1548.018990] [<f8bc9cca>] ? ppp_unregister_channel+0x100a/0x1c10 [ppp_generic] [ 1548.018990] [<f8bee948>] ? 0xf8bee947 [ 1548.018990] [<f8bca560>] ? ppp_unregister_channel+0x18a0/0x1c10 [ppp_generic] [ 1548.018990] [<f8bca605>] ? ppp_unregister_channel+0x1945/0x1c10 [ppp_generic] [ 1548.018990] [<f8bca805>] ? ppp_unregister_channel+0x1b45/0x1c10 [ppp_generic] [ 1548.018990] [<c1402c5d>] ? dev_hard_start_xmit+0x3ed/0x4f0 [ 1548.018990] [<c1428e20>] ? ip_flush_pending_frames.isra.47+0x60/0x60 [ 1548.018990] [<c1414737>] ? sch_direct_xmit+0x57/0x170 [ 1548.018990] [<c1428e20>] ? ip_flush_pending_frames.isra.47+0x60/0x60 [ 1548.018990] [<c1403029>] ? dev_queue_xmit+0x2c9/0x480 [ 1548.018990] [<c1429082>] ? ip_finish_output+0x262/0x2b0 [ 1548.018990] [<c1429188>] ? ip_local_out+0x18/0x20 [ 1548.018990] [<f8d1d681>] ? 0xf8d1d680 [ 1548.018990] [<f8bca863>] ? ppp_unregister_channel+0x1ba3/0x1c10 [ppp_generic] [ 1548.018990] [<f8bca99e>] ? ppp_output_wakeup+0xce/0xe40 [ppp_generic] [ 1548.573040] BUG: scheduling while atomic: pppd/21042/0x00010800 -- To unsubscribe from this list: send the line "unsubscribe linux-ppp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
