Hi ereryone, I have a problem when I stop my test demo with ¡®CTRL+C¡¯, and then kernel panic. Any suggestions? BTW, I¡¯m using the version 1.4.1-7 in RHEL6.4, kernel version is 3.2.28 uio device registered with irq 33 general protection fault: 0000 [#1] SMP CPU 2 Modules linked in: igb_uio(O) [last unloaded: scsi_wait_scan] Pid: 6072, comm: test Tainted: G O 3.2.28 #12 SinoGrid Inc. WiseGrid ADC2000/To be filled by O.E.M. RIP: 0010:[] [] sock_def_wakeup+0x19/0x3e RSP: 0018:ffff88022fa37c48 EFLAGS: 00010206 RAX: 0bd943e9b9b967f6 RBX: ffff880235946d20 RCX: ffff8802365a25c8 RDX: ffffffff81553ae5 RSI: ffff8802365a25c8 RDI: 0bd943e9b9b967ee RBP: ffff880235a460c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffff88023502d800 R12: ffff8802365a25c8 R13: ffff8802354c9cc0 R14: ffff88023528bc90 R15: ffff880235ee4a80 FS: 0000000000000000(0000) GS:ffff88023fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000003ec3413000 CR3: 0000000001a3f000 CR4: 00000000000406a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process test (pid: 6072, threadinfo ffff88022fa36000, task ffff88023537e8e0) Stack: ffff880229908cc0 ffffffff814bb41b 0000000000000008 ffff8802365a25c8 ffff88023528bc80 ffff88023528bc80 0000000000000008 ffffffff8109aff3 0000000000000000 ffff88023528bc80 ffff880235022140 0000000000000000 Call Trace: [] ? uio_release+0x2a/0x4a [] ? fput+0xea/0x1a5 [] ? filp_close+0x59/0x61 [] ? put_files_struct+0x67/0xc5 [] ? do_exit+0x221/0x678 [] ? do_group_exit+0x73/0x9d [] ? get_signal_to_deliver+0x406/0x422 [] ? do_signal+0x36/0x620 [] ? hrtimer_cancel+0xc/0x16 [] ? do_nanosleep+0x77/0xb0 [] ? hrtimer_nanosleep+0x65/0x108 [] ? hrtimer_nanosleep+0x9c/0x108 [] ? update_rmtp+0x5d/0x5d [] ? do_notify_resume+0xd/0x28 [] ? int_signal+0x12/0x17 Code: ff ff c7 43 54 01 00 00 00 fe 43 50 5b e9 0b c3 ad ff 48 83 ec 08 48 8b bf b8 00 00 00 0f ae f0 31 c0 48 85 ff 74 0e 48 8d 47 08 <48> 39 47 08 0f 95 c0 0f b6 c0 85 c0 74 12 31 c9 31 d2 be 01 00 RIP [] sock_def_wakeup+0x19/0x3e RSP ---[ end trace 807c8a5f11d131ba ]--- Fixing recursive fault but reboot is needed! [root@localhost DPDK]#