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Date: Wed, 19 Mar 2008 08:36:01 +0100 From: Bernard Pidoux F6BVP <f6bvp@...e.fr> To: Francois Romieu <romieu@...zoreil.com> CC: Linux Netdev List <netdev@...r.kernel.org> Subject: Re: [AX25] kernel panic Francois Romieu wrote: > Bernard Pidoux F6BVP <f6bvp@...e.fr> : > [...] >> I used netconsole to document a kernel panic related to AX25 on one of my >> systems. >> This occurs systematically as soon as I close an AX25 session established >> through a level 3 ROSE network (FPAC) via AXUDP link (ax25ipd). >> It is not triggered when connecting locally or via AX25 call through LAN. > > May be replacing netif_rx() in drivers/net/hamradio/mkiss.c::ax_bump() > by netif_receive_skb() ? > Sorry, this does not made it. I replaced netif_rx() by netif_receive_skb(skb) but this gives a worst situation : system is frozen. Thank you for the suggestion. ======================= BUG: soft lockup - CPU#0 stuck for 11s! [ax25ipd:3584] Pid: 3584, comm: ax25ipd Not tainted (2.6.24.3 #7) EIP: 0060:[<c01ed892>] EFLAGS: 00000246 CPU: 0 EIP is at delay_tsc+0x12/0x20 EAX: 7752234b EBX: 00000001 ECX: 7752234b EDX: 00000016 ESI: 087022c8 EDI: 00000000 EBP: c6bb5bc0 ESP: c6bb5bbc DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 CR0: 8005003b CR2: b7dd86f8 CR3: 07960000 CR4: 000000d0 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 DR6: ffff0ff0 DR7: 00000400 [<c010535a>] show_trace_log_lvl+0x1a/0x30 [<c0105d82>] show_trace+0x12/0x20 [<c01024cc>] show_regs+0x1c/0x20 [<c015555b>] softlockup_tick+0x11b/0x150 [<c0126c12>] run_local_timers+0x12/0x20 [<c012708f>] update_process_times+0x2f/0x60 [<c013a355>] tick_periodic+0x25/0x80 [<c013a3c9>] tick_handle_periodic+0x19/0x80 [<c0107aca>] timer_interrupt+0x4a/0x60 [<c0155928>] handle_IRQ_event+0x28/0x60 [<c015725f>] handle_level_irq+0x7f/0xf0 [<c0106e68>] do_IRQ+0x48/0xa0 [<c0104d16>] common_interrupt+0x2e/0x34 [<c01ed839>] __delay+0x9/0x10 [<c01f15f2>] _raw_spin_lock+0xb2/0x140 [<c02cd350>] _spin_lock_bh+0x50/0x60 [<c8c59e72>] ax_xmit+0x112/0x370 [mkiss] [<c025e947>] dev_hard_start_xmit+0x207/0x270 [<c026f454>] __qdisc_run+0x54/0x1b0 [<c0261226>] dev_queue_xmit+0x266/0x340 [<c8c27a87>] ax25_queue_xmit+0x47/0x70 [ax25] [<c8c27b77>] ax25_transmit_buffer+0xc7/0x110 [ax25] [<c8c27c3d>] ax25_send_iframe+0x7d/0x110 [ax25] [<c8c27d80>] ax25_kick+0xb0/0x1b0 [ax25] [<c8c28e49>] ax25_std_frame_in+0x69/0x890 [ax25] [<c8c26dbb>] ax25_kiss_rcv+0x2bb/0x7c0 [ax25] [<c025e24a>] netif_receive_skb+0x38a/0x480 [<c8c596ab>] mkiss_receive_buf+0x34b/0x420 [mkiss] [<c0219457>] pty_write+0x47/0x60 [<c0216a19>] write_chan+0x229/0x330 [<c021407b>] tty_write+0x12b/0x1c0 [<c017b66f>] vfs_write+0xaf/0x120 [<c017bcbd>] sys_write+0x3d/0x70 [<c010427e>] sysenter_past_esp+0x5f/0xa5 ======================= Regards, Bernard Pidoux -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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