Messages in this thread | | | From | "Amit S. Kale" <> | Subject | KGDB 2.0.3 with fixes and development in ethernet interface | Date | Fri, 16 Jan 2004 17:59:59 +0530 |
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Hi,
KGDB 2.0.3 is available at http://kgdb.sourceforge.net/kgdb-2/linux-2.6.1-kgdb-2.0.3.tar.bz2
Ethernet interface still doesn't work. It responds to gdb for a couple of packets and then panics. gdb log for ethernet interface is pasted below.
It panics and enter kgdb_handle_exception recursively and silently. To see the panic on screen make kgdb_handle_exception return immediately if kgdb_connected is non-zero.
Panic trace is pasted below. It panics in skb_release_data. Looks like skb handling will have to changed to be have kgdb specific buffers. -- Amit Kale EmSysSoft (http://www.emsyssoft.com) KGDB: Linux Kernel Source Level Debugger (http://kgdb.sourceforge.net)
(gdb) set debug remote 1 (gdb) tar re udp:192.168.1.4:5001 warning: The remote protocol may be unreliable over UDP. warning: Some events may be lost, rendering further debugging impossible. Remote debugging using udp:192.168.1.4:5001 Sending packet: $Hc-1#09...Ack Packet received: OK Sending packet: $qC#b4...Ack Timed out. Timed out.
Jan 16 17:17:10 pc1 kernel: Unable to handle kernel paging request at virtual a dress 39233134 Starting xinetd: Jan 16 17:17:10 pc1 kernel: printing eip: Jan 16 17:17:10 pc1 kernel: c0239074 Jan 16 17:17:10 pc1 kernel: *pde = 00000000 Jan 16 17:17:10 pc1 kernel: Oops: 0000 [#1] Jan 16 17:17:11 pc1 kernel: CPU: 0 Jan 16 17:17:11 pc1 kernel: EIP: 0060:[<c0239074>] Not tainted Jan 16 17:17:11 pc1 kernel: EFLAGS: 00010283 Jan 16 17:17:11 pc1 kernel: EIP is at skb_release_data+0x44/0xb0 : Jan 16 17:17:11 pc1 kernel: eax: c7deb220 ebx: c7708c00 ecx: c7deb220 edx 39233134 : Jan 16 17:17:11 pc1 kernel: esi: 00000000 edi: c7deb1fb ebp: c7707e24 esp c7707e18 Jan 16 17:17:11 pc1 kernel: ds: 007b es: 007b ss: 0068 = Jan 16 17:17:11 pc1 kernel: Process kgdbeth (pid: 833, threadinfo=c7706000 task c12946d0) Jan 16 17:17:11 pc1 kernel: Stack: ffffffff c7708c00 c7708c00 c7707e38 c02390f4 c7708c00 00000292 00000000 Jan 16 17:17:12 pc1 kernel: c7707e50 c02391aa c7708c00 c7e8a600 c7708c00 c7e8a600 c7707e78 c01f630e Jan 16 17:17:12 pc1 kernel: c7708c00 c72c2000 00000000 00000040 c880d000 c7708c00 c031fbf2 c7deb1fb Jan 16 17:17:12 pc1 kernel: Call Trace: Jan 16 17:17:12 pc1 kernel: [<c02390f4>] kfree_skbmem+0x14/0x30 Jan 16 17:17:12 pc1 kernel: [<c02391aa>] __kfree_skb+0x9a/0x130 Jan 16 17:17:12 pc1 kernel: [<c01f630e>] rtl8139_start_xmit+0x7e/0x110 Jan 16 17:17:12 pc1 kernel: [<c01f3356>] write_buffer+0x256/0x2e0 Jan 16 17:17:12 pc1 kernel: [<c01f3403>] kgdbeth_flush+0x23/0x30 Jan 16 17:17:12 pc1 kernel: [<c0133fdd>] putpacket+0x14d/0x170 Jan 16 17:17:12 pc1 kernel: [<c0133e26>] getpacket+0xd6/0x140 Jan 16 17:17:12 pc1 kernel: [<c0134875>] kgdb_handle_exception+0x215/0xae0 Jan 16 17:17:12 pc1 kernel: [<c011d660>] __call_console_drivers+0x60/0x70 Jan 16 17:17:12 pc1 kernel: [<c010b910>] do_int3+0x0/0x100 Jan 16 17:17:12 pc1 kernel: [<c010ba07>] do_int3+0xf7/0x100 Jan 16 17:17:12 pc1 kernel: [<c010b129>] error_code+0x2d/0x38 Jan 16 17:17:12 pc1 kernel: [<c01351f7>] breakpoint+0x17/0x20 Jan 16 17:17:12 pc1 kernel: [<c01352b0>] kgdb_entry+0xa0/0xb0 Jan 16 17:17:12 pc1 kernel: [<c01f3bed>] kgdbeth_thread+0x3d/0x70 Jan 16 17:17:12 pc1 kernel: [<c01f3bb0>] kgdbeth_thread+0x0/0x70 Jan 16 17:17:12 pc1 kernel: [<c0109009>] kernel_thread_helper+0x5/0xc Jan 16 17:17:12 pc1 kernel: 4 Jan 16 17:17:12 pc1 kernel: Code: 8b 02 a9 00 08 00 00 75 17 8b 42 04 85 c0 74 5 ff 4a 04 0f
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