* Oops from tcp_collapse() when using splice()
@ 2009-11-11 11:22 Karl Hiramoto
2009-11-11 11:38 ` Karl Hiramoto
0 siblings, 1 reply; 3+ messages in thread
From: Karl Hiramoto @ 2009-11-11 11:22 UTC (permalink / raw)
To: netdev
Hi, the following oops occurs with both 2.6.28.9 and 2.6.30.9
userspace program is using splice() on two tcp sockets.
Internal error: Oops: 817 [#1]
Modules linked in: pppoe pppox br2684 crc_ccitt nf_nat_pptp nf_nat_proto_gre nf_conntrack_pptp nf_conntrack_proto_gre af_key ixp4xx_crypto ipt_MASQUERADE
CPU: 0 Not tainted (2.6.30.9 #1)
PC is at tcp_collapse+0x268/0x338
LR is at 0xc2c49640
pc : [<c020be4c>] lr : [<c2c49640>] psr: 80000013
sp : c0323c80 ip : c3a09920 fp : c0323cb8
r10: 20ec0490 r9 : 00000e2c r8 : c2d117a0
r7 : c2c49620 r6 : c2d11780 r5 : c2c49600 r4 : 00000074
r3 : 00000000 r2 : 20ec4594 r1 : 00004104 r0 : c2c49600
Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
Control: 000039ff Table: 02efc000 DAC: 00000017
Process swapper (pid: 0, stack limit = 0xc0322260)
Stack: (0xc0323c80 to 0xc0324000)
3c80: c3a09920 c3a09920 c3a098c0 ffffc476 c3a098c0 c3a098c0 0000059a c2cded80
3ca0: c2eef054 c3a09c20 c2eef054 c0323cfc c0323cbc c020c114 c020bbf0 20ec0490
3cc0: 20ed15b0 18295345 00000000 c3a09c20 00000000 000008ec c3a098c0 0000059a
3ce0: c2cded80 c2eef054 c2cdeda0 c2eef054 c0323d30 c0323d00 c020c394 c020bf28
3d00: c2e5ec00 ffffffff c3a098c0 c2cded80 0000059a c2eef054 00000020 c2cdeda0
3d20: c2eef054 c0323d5c c0323d34 c02102f8 c020c1b4 00000000 c2cded80 c3a098c0
3d40: c2eef054 c03576fc c2eef040 0000cd2b c0323d8c c0323d60 c0215770 c020fddc
3d60: bf11dcfc 00000000 c0323d8c c0323d78 00000000 c2cded80 c3a098c0 c2eef054
3d80: c0323dc8 c0323d90 c021750c c021574c 0a430f2d 0000cd2b 00000005 c0357e58
3da0: c033dd04 c2cded80 00000000 c03576fc c0358518 c033b870 00000000 c0323dec
3dc0: c0323dcc c01fb6ac c0216e6c c2cded80 c2cded80 c2eef040 c2e5ec00 c0357a40
3de0: c0323e0c c0323df0 c01fbb68 c01fb55c 00000000 c01fb550 80000000 c0357a20
3e00: c0323e38 c0323e10 c01fb52c c01fbaf8 c2e5ec00 c2cded80 c0357a20 c2cded80
3e20: c03576fc c2e5ec00 c0357a40 c0323e64 c0323e3c c01fbab8 c01fb22c 00000000
3e40: c01fb220 80000000 c0357a20 c2cded80 c2e5ec00 00000800 c0323e94 c0323e68
3e60: c01ddf24 c01fb86c c2e5c600 c0323ecc 00000002 c033b888 ffffbe5e 00000040
3e80: 00000000 c033b86c c0323ec0 c0323e98 c01ddff4 c01ddb9c c033b888 00000040
3ea0: 00000100 0000012c c033b86c c033b87c ffffbe60 c0323eec c0323ec4 c01e095c
3ec0: c01ddf74 c0322000 0000000c 00000100 00000001 00000009 c034b72c 00000000
3ee0: c0323f20 c0323ef0 c00359dc c01e0900 c0323efc c0029608 00000003 00000000
3f00: 00000008 c03426a8 0001c608 690541f1 0001c49c c0323f30 c0323f24 c0035c98
3f20: c003597c c0323f48 c0323f34 c0020058 c0035c60 ffffffff 0000001f c0323fa0
3f40: c0323f4c c00209c4 c002000c c03273c8 c383e300 c0322000 00000000 c0021de8
3f60: c0322000 c0021de8 c03426a8 0001c608 690541f1 0001c49c c0323fa0 c0323fa4
3f80: c0323f94 c0021cb0 c0021dfc 60000013 ffffffff c0323fc0 c0323fa4 c0021cb0
3fa0: c0021df4 c034dfc4 c0342450 c001dd60 c0326344 c0323fd0 c0323fc4 c0263be4
3fc0: c0021c80 c0323ff4 c0323fd4 c00089c0 c0263b98 c00083ac c001dd60 000039fd
3fe0: c03426d8 c001e164 00000000 c0323ff8 00008034 c00087bc 00000000 00000000
Backtrace:
[<c020bbe4>] (tcp_collapse+0x0/0x338) from [<c020c114>] (tcp_prune_queue+0x1f8/0x28c)
[<c020bf1c>] (tcp_prune_queue+0x0/0x28c) from [<c020c394>] (tcp_data_queue+0x1ec/0xc3c)
[<c020c1a8>] (tcp_data_queue+0x0/0xc3c) from [<c02102f8>] (tcp_rcv_established+0x528/0x5e0)
[<c020fdd0>] (tcp_rcv_established+0x0/0x5e0) from [<c0215770>] (tcp_v4_do_rcv+0x30/0x1c4)
[<c0215740>] (tcp_v4_do_rcv+0x0/0x1c4) from [<c021750c>] (tcp_v4_rcv+0x6ac/0x754)
r7:c2eef054 r6:c3a098c0 r5:c2cded80 r4:00000000
[<c0216e60>] (tcp_v4_rcv+0x0/0x754) from [<c01fb6ac>] (ip_local_deliver_finish+0x15c/0x21c)
[<c01fb550>] (ip_local_deliver_finish+0x0/0x21c) from [<c01fbb68>] (ip_local_deliver+0x7c/0x88)
r8:c0357a40 r7:c2e5ec00 r6:c2eef040 r5:c2cded80 r4:c2cded80
[<c01fbaec>] (ip_local_deliver+0x0/0x88) from [<c01fb52c>] (ip_rcv_finish+0x30c/0x330)
r4:c0357a20
[<c01fb220>] (ip_rcv_finish+0x0/0x330) from [<c01fbab8>] (ip_rcv+0x258/0x28c)
r8:c0357a40 r7:c2e5ec00 r6:c03576fc r5:c2cded80 r4:c0357a20
[<c01fb860>] (ip_rcv+0x0/0x28c) from [<c01ddf24>] (netif_receive_skb+0x394/0x3d8)
r7:00000800 r6:c2e5ec00 r5:c2cded80 r4:c0357a20
[<c01ddb90>] (netif_receive_skb+0x0/0x3d8) from [<c01ddff4>] (process_backlog+0x8c/0xd8)
[<c01ddf68>] (process_backlog+0x0/0xd8) from [<c01e095c>] (net_rx_action+0x68/0x188)
[<c01e08f4>] (net_rx_action+0x0/0x188) from [<c00359dc>] (__do_softirq+0x6c/0xf8)
[<c0035970>] (__do_softirq+0x0/0xf8) from [<c0035c98>] (irq_exit+0x44/0x4c)
[<c0035c54>] (irq_exit+0x0/0x4c) from [<c0020058>] (asm_do_IRQ+0x58/0x6c)
[<c0020000>] (asm_do_IRQ+0x0/0x6c) from [<c00209c4>] (__irq_svc+0x24/0x80)
Exception stack(0xc0323f4c to 0xc0323f94)
3f40: c03273c8 c383e300 c0322000 00000000 c0021de8
3f60: c0322000 c0021de8 c03426a8 0001c608 690541f1 0001c49c c0323fa0 c0323fa4
3f80: c0323f94 c0021cb0 c0021dfc 60000013 ffffffff
r5:0000001f r4:ffffffff
[<c0021de8>] (default_idle+0x0/0x4c) from [<c0021cb0>] (cpu_idle+0x3c/0x58)
[<c0021c74>] (cpu_idle+0x0/0x58) from [<c0263be4>] (rest_init+0x58/0x6c)
r7:c0326344 r6:c001dd60 r5:c0342450 r4:c034dfc4
[<c0263b8c>] (rest_init+0x0/0x6c) from [<c00089c0>] (start_kernel+0x210/0x264)
[<c00087b0>] (start_kernel+0x0/0x264) from [<00008034>] (0x8034)
r6:c001e164 r5:c03426d8 r4:000039fd
Code: e50b302c e06a1002 5a000002 e3a03000 (e5833000)
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Oops from tcp_collapse() when using splice()
2009-11-11 11:22 Oops from tcp_collapse() when using splice() Karl Hiramoto
@ 2009-11-11 11:38 ` Karl Hiramoto
0 siblings, 0 replies; 3+ messages in thread
From: Karl Hiramoto @ 2009-11-11 11:38 UTC (permalink / raw)
To: netdev
Karl Hiramoto wrote:
> Hi, the following oops occurs with both 2.6.28.9 and 2.6.30.9
>
> userspace program is using splice() on two tcp sockets.
>
Unable to handle kernel NULL pointer dereference at virtual address
00000000
pgd =
c0004000
[00000000]
*pgd=00000000
Internal error: Oops: 817
[#1]
Modules linked in: pppoe pppox br2684 crc_ccitt nf_nat_pptp
nf_nat_proto_gre nf_conntrack_pptp nf_conntrack_proto_gre af_key
ixp4xx_crypto ipt_MASQUERADEc
CPU: 0 Not tainted (2.6.30.9
#1)
PC is at
tcp_collapse+0x268/0x338
LR is at
0xc2f047c0
pc : [<c020be4c>] lr : [<c2f047c0>] psr:
80000013
sp : c0323c90 ip : c3881d40 fp :
c0323cc8
r10: c6762c80 r9 : 00000e2c r8 :
c3b85920
r7 : c2f047a0 r6 : c3b85900 r5 : c2f04780 r4 :
00000074
r3 : 00000000 r2 : c6766d84 r1 : 00004104 r0 :
c2f04780
Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment
kernel
Control: 000039ff Table: 02cd0000 DAC:
00000017
Process swapper (pid: 0, stack limit =
0xc0322260)
Stack: (0xc0323c90 to
0xc0324000)
3c80: c3881d40 c3881d40 c3881ce0
ffffc476
3ca0: c3881ce0 c3881ce0 0000059a c2dd2d80 c2ea1054 c3882040 c2ea1054
c0323d0c
3cc0: c0323ccc c020c114 c020bbf0 c6762c80 c6773da0 b87d516b 00000000
c3882040
3ce0: 00000000 000008ec c3881ce0 0000059a c2dd2d80 c2ea1054 c2dd2da0
c2ea1054
3d00: c0323d40 c0323d10 c020c394 c020bf28 c2e46000 ffffffff c3881ce0
c2dd2d80
3d20: 0000059a c2ea1054 00000020 c2dd2da0 c2ea1054 c0323d6c c0323d44
c02102f8
3d40: c020c1b4 00000000 c2dd2d80 c3881ce0 c2ea1054 c03576fc c2ea1040
0000e76d
3d60: c0323d9c c0323d70 c0215770 c020fddc bf11dcfc 00000000 c0323d9c
c0323d88
3d80: 00000000 c2dd2d80 c3881ce0 c2ea1054 c0323dd8 c0323da0 c021750c
c021574c
3da0: 0a430f30 0000e76d 00000005 c0357e58 c033dd04 c2dd2d80 00000000
c03576fc
3dc0: c0358518 c033b870 00000000 c0323dfc c0323ddc c01fb6ac c0216e6c
c2dd2d80
3de0: c2dd2d80 c2ea1040 c2e46000 c0357a40 c0323e1c c0323e00 c01fbb68
c01fb55c
3e00: 00000000 c01fb550 80000000 c0357a20 c0323e48 c0323e20 c01fb52c
c01fbaf8
3e20: c2e46000 c2dd2d80 c0357a20 c2dd2d80 c03576fc c2e46000 c0357a40
c0323e74
3e40: c0323e4c c01fbab8 c01fb22c 00000000 c01fb220 80000000 c0357a20
c2dd2d80
3e60: c2e46000 00000800 c0323ea4 c0323e78 c01ddf24 c01fb86c c2e57a00
c0323edc
3e80: 00000002 c033b888 ffffabd7 00000040 00000000 c033b86c c0323ed0
c0323ea8
3ea0: c01ddff4 c01ddb9c c033b888 00000040 00000100 0000012c c033b86c
c033b87c
3ec0: ffffabd9 c0323efc c0323ed4 c01e095c c01ddf74 c0322000 0000000c
00000100
3ee0: 00000001 00000009 c034b72c 00000000 c0323f30 c0323f00 c00359dc
c01e0900
3f00: c0323f0c c0029608 00000003 00000000 00000008 c03426a8 0001c608
690541f1
3f20: 0001c49c c0323f40 c0323f34 c0035c98 c003597c c0323f58 c0323f44
c0020058
3f40: c0035c60 ffffffff 0000001f c0323fc0 c0323f5c c00209c4 c002000c
c03273c8
3f60: c381a900 a0000013 00000000 c0021de8 c0322000 c0021de8 c03426a8
0001c608
3f80: 690541f1 0001c49c c0323fc0 c0323fa4 c0323fa4 c0021cb0 c0021de8
60000013
3fa0: ffffffff c034dfc4 c0342450 c001dd60 c0326344 c0323fd0 c0323fc4
c0263be4
3fc0: c0021c80 c0323ff4 c0323fd4 c00089c0 c0263b98 c00083ac c001dd60
000039fd
3fe0: c03426d8 c001e164 00000000 c0323ff8 00008034 c00087bc 00000000
00000000
Backtrace:
[<c020bbe4>] (tcp_collapse+0x0/0x338) from [<c020c114>]
(tcp_prune_queue+0x1f8/0x28c)
[<c020bf1c>] (tcp_prune_queue+0x0/0x28c) from [<c020c394>]
(tcp_data_queue+0x1ec/0xc3c)
[<c020c1a8>] (tcp_data_queue+0x0/0xc3c) from [<c02102f8>]
(tcp_rcv_established+0x528/0x5e0)
[<c020fdd0>] (tcp_rcv_established+0x0/0x5e0) from [<c0215770>]
(tcp_v4_do_rcv+0x30/0x1c4)
[<c0215740>] (tcp_v4_do_rcv+0x0/0x1c4) from [<c021750c>]
(tcp_v4_rcv+0x6ac/0x754)
r7:c2ea1054 r6:c3881ce0 r5:c2dd2d80 r4:00000000
[<c0216e60>] (tcp_v4_rcv+0x0/0x754) from [<c01fb6ac>]
(ip_local_deliver_finish+0x15c/0x21c)
[<c01fb550>] (ip_local_deliver_finish+0x0/0x21c) from [<c01fbb68>]
(ip_local_deliver+0x7c/0x88)
r8:c0357a40 r7:c2e46000 r6:c2ea1040 r5:c2dd2d80 r4:c2dd2d80
[<c01fbaec>] (ip_local_deliver+0x0/0x88) from [<c01fb52c>]
(ip_rcv_finish+0x30c/0x330)
r4:c0357a20
[<c01fb220>] (ip_rcv_finish+0x0/0x330) from [<c01fbab8>]
(ip_rcv+0x258/0x28c)
r8:c0357a40 r7:c2e46000 r6:c03576fc r5:c2dd2d80 r4:c0357a20
[<c01fb860>] (ip_rcv+0x0/0x28c) from [<c01ddf24>]
(netif_receive_skb+0x394/0x3d8)
r7:00000800 r6:c2e46000 r5:c2dd2d80 r4:c0357a20
[<c01ddb90>] (netif_receive_skb+0x0/0x3d8) from [<c01ddff4>]
(process_backlog+0x8c/0xd8)
[<c01ddf68>] (process_backlog+0x0/0xd8) from [<c01e095c>]
(net_rx_action+0x68/0x188)
[<c01e08f4>] (net_rx_action+0x0/0x188) from [<c00359dc>]
(__do_softirq+0x6c/0xf8)
[<c0035970>] (__do_softirq+0x0/0xf8) from [<c0035c98>] (irq_exit+0x44/0x4c)
[<c0035c54>] (irq_exit+0x0/0x4c) from [<c0020058>] (asm_do_IRQ+0x58/0x6c)
[<c0020000>] (asm_do_IRQ+0x0/0x6c) from [<c00209c4>] (__irq_svc+0x24/0x80)
Exception stack(0xc0323f5c to 0xc0323fa4)
3f40:
c03273c8
3f60: c381a900 a0000013 00000000 c0021de8 c0322000 c0021de8 c03426a8
0001c608
3f80: 690541f1 0001c49c c0323fc0 c0323fa4 c0323fa4 c0021cb0 c0021de8
60000013
3fa0: ffffffff
r5:0000001f r4:ffffffff
[<c0021c74>] (cpu_idle+0x0/0x58) from [<c0263be4>] (rest_init+0x58/0x6c)
r7:c0326344 r6:c001dd60 r5:c0342450 r4:c034dfc4
[<c0263b8c>] (rest_init+0x0/0x6c) from [<c00089c0>]
(start_kernel+0x210/0x264)
[<c00087b0>] (start_kernel+0x0/0x264) from [<00008034>] (0x8034)
r6:c001e164 r5:c03426d8 r4:000039fd
Code: e50b302c e06a1002 5a000002 e3a03000 (e5833000)
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Oops from tcp_collapse() when using splice()
[not found] <1269538271.3012.92.camel@iscandar.digidescorp.com>
@ 2010-03-25 17:38 ` Steven J. Magnani
0 siblings, 0 replies; 3+ messages in thread
From: Steven J. Magnani @ 2010-03-25 17:38 UTC (permalink / raw)
To: netdev
On Wed, 2009-11-11 at 11:22 GMT, Karl Hiramoto wrote:
>
> Hi, the following oops occurs with both 2.6.28.9 and 2.6.30.9
>
> userspace program is using splice() on two tcp sockets.
>
> Internal error: Oops: 817 [#1]
> Modules linked in: pppoe pppox br2684 crc_ccitt nf_nat_pptp nf_nat_proto_gre nf_conntrack_pptp
> nf_conntrack_proto_gre af_key ixp4xx_crypto ipt_MASQUERADE
> CPU: 0 Not tainted (2.6.30.9 #1)
> PC is at tcp_collapse+0x268/0x338
> LR is at 0xc2c49640
> pc : [<c020be4c>] lr : [<c2c49640>] psr: 80000013
> sp : c0323c80 ip : c3a09920 fp : c0323cb8
> r10: 20ec0490 r9 : 00000e2c r8 : c2d117a0
> r7 : c2c49620 r6 : c2d11780 r5 : c2c49600 r4 : 00000074
> r3 : 00000000 r2 : 20ec4594 r1 : 00004104 r0 : c2c49600
> Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
> Control: 000039ff Table: 02efc000 DAC: 00000017
> Process swapper (pid: 0, stack limit = 0xc0322260)
> Stack: (0xc0323c80 to 0xc0324000)
> 3c80: c3a09920 c3a09920 c3a098c0 ffffc476 c3a098c0 c3a098c0 0000059a c2cded80
> 3ca0: c2eef054 c3a09c20 c2eef054 c0323cfc c0323cbc c020c114 c020bbf0 20ec0490
> 3cc0: 20ed15b0 18295345 00000000 c3a09c20 00000000 000008ec c3a098c0 0000059a
> 3ce0: c2cded80 c2eef054 c2cdeda0 c2eef054 c0323d30 c0323d00 c020c394 c020bf28
> 3d00: c2e5ec00 ffffffff c3a098c0 c2cded80 0000059a c2eef054 00000020 c2cdeda0
> 3d20: c2eef054 c0323d5c c0323d34 c02102f8 c020c1b4 00000000 c2cded80 c3a098c0
> 3d40: c2eef054 c03576fc c2eef040 0000cd2b c0323d8c c0323d60 c0215770 c020fddc
> 3d60: bf11dcfc 00000000 c0323d8c c0323d78 00000000 c2cded80 c3a098c0 c2eef054
> 3d80: c0323dc8 c0323d90 c021750c c021574c 0a430f2d 0000cd2b 00000005 c0357e58
> 3da0: c033dd04 c2cded80 00000000 c03576fc c0358518 c033b870 00000000 c0323dec
> 3dc0: c0323dcc c01fb6ac c0216e6c c2cded80 c2cded80 c2eef040 c2e5ec00 c0357a40
> 3de0: c0323e0c c0323df0 c01fbb68 c01fb55c 00000000 c01fb550 80000000 c0357a20
> 3e00: c0323e38 c0323e10 c01fb52c c01fbaf8 c2e5ec00 c2cded80 c0357a20 c2cded80
> 3e20: c03576fc c2e5ec00 c0357a40 c0323e64 c0323e3c c01fbab8 c01fb22c 00000000
> 3e40: c01fb220 80000000 c0357a20 c2cded80 c2e5ec00 00000800 c0323e94 c0323e68
> 3e60: c01ddf24 c01fb86c c2e5c600 c0323ecc 00000002 c033b888 ffffbe5e 00000040
> 3e80: 00000000 c033b86c c0323ec0 c0323e98 c01ddff4 c01ddb9c c033b888 00000040
> 3ea0: 00000100 0000012c c033b86c c033b87c ffffbe60 c0323eec c0323ec4 c01e095c
> 3ec0: c01ddf74 c0322000 0000000c 00000100 00000001 00000009 c034b72c 00000000
> 3ee0: c0323f20 c0323ef0 c00359dc c01e0900 c0323efc c0029608 00000003 00000000
> 3f00: 00000008 c03426a8 0001c608 690541f1 0001c49c c0323f30 c0323f24 c0035c98
> 3f20: c003597c c0323f48 c0323f34 c0020058 c0035c60 ffffffff 0000001f c0323fa0
> 3f40: c0323f4c c00209c4 c002000c c03273c8 c383e300 c0322000 00000000 c0021de8
> 3f60: c0322000 c0021de8 c03426a8 0001c608 690541f1 0001c49c c0323fa0 c0323fa4
> 3f80: c0323f94 c0021cb0 c0021dfc 60000013 ffffffff c0323fc0 c0323fa4 c0021cb0
> 3fa0: c0021df4 c034dfc4 c0342450 c001dd60 c0326344 c0323fd0 c0323fc4 c0263be4
> 3fc0: c0021c80 c0323ff4 c0323fd4 c00089c0 c0263b98 c00083ac c001dd60 000039fd
> 3fe0: c03426d8 c001e164 00000000 c0323ff8 00008034 c00087bc 00000000 00000000
> Backtrace:
> [<c020bbe4>] (tcp_collapse+0x0/0x338) from [<c020c114>] (tcp_prune_queue+0x1f8/0x28c)
> [<c020bf1c>] (tcp_prune_queue+0x0/0x28c) from [<c020c394>] (tcp_data_queue+0x1ec/0xc3c)
> [<c020c1a8>] (tcp_data_queue+0x0/0xc3c) from [<c02102f8>] (tcp_rcv_established+0x528/0x5e0)
> [<c020fdd0>] (tcp_rcv_established+0x0/0x5e0) from [<c0215770>] (tcp_v4_do_rcv+0x30/0x1c4)
> [<c0215740>] (tcp_v4_do_rcv+0x0/0x1c4) from [<c021750c>] (tcp_v4_rcv+0x6ac/0x754)
> r7:c2eef054 r6:c3a098c0 r5:c2cded80 r4:00000000
> [<c0216e60>] (tcp_v4_rcv+0x0/0x754) from [<c01fb6ac>] (ip_local_deliver_finish+0x15c/0x21c)
> [<c01fb550>] (ip_local_deliver_finish+0x0/0x21c) from [<c01fbb68>]
> (ip_local_deliver+0x7c/0x88)
> r8:c0357a40 r7:c2e5ec00 r6:c2eef040 r5:c2cded80 r4:c2cded80
> [<c01fbaec>] (ip_local_deliver+0x0/0x88) from [<c01fb52c>] (ip_rcv_finish+0x30c/0x330)
> r4:c0357a20
> [<c01fb220>] (ip_rcv_finish+0x0/0x330) from [<c01fbab8>] (ip_rcv+0x258/0x28c)
> r8:c0357a40 r7:c2e5ec00 r6:c03576fc r5:c2cded80 r4:c0357a20
> [<c01fb860>] (ip_rcv+0x0/0x28c) from [<c01ddf24>] (netif_receive_skb+0x394/0x3d8)
> r7:00000800 r6:c2e5ec00 r5:c2cded80 r4:c0357a20
> [<c01ddb90>] (netif_receive_skb+0x0/0x3d8) from [<c01ddff4>] (process_backlog+0x8c/0xd8)
> [<c01ddf68>] (process_backlog+0x0/0xd8) from [<c01e095c>] (net_rx_action+0x68/0x188)
> [<c01e08f4>] (net_rx_action+0x0/0x188) from [<c00359dc>] (__do_softirq+0x6c/0xf8)
> [<c0035970>] (__do_softirq+0x0/0xf8) from [<c0035c98>] (irq_exit+0x44/0x4c)
> [<c0035c54>] (irq_exit+0x0/0x4c) from [<c0020058>] (asm_do_IRQ+0x58/0x6c)
> [<c0020000>] (asm_do_IRQ+0x0/0x6c) from [<c00209c4>] (__irq_svc+0x24/0x80)
> Exception stack(0xc0323f4c to 0xc0323f94)
> 3f40: c03273c8 c383e300 c0322000 00000000 c0021de8
> 3f60: c0322000 c0021de8 c03426a8 0001c608 690541f1 0001c49c c0323fa0 c0323fa4
> 3f80: c0323f94 c0021cb0 c0021dfc 60000013 ffffffff
> r5:0000001f r4:ffffffff
> [<c0021de8>] (default_idle+0x0/0x4c) from [<c0021cb0>] (cpu_idle+0x3c/0x58)
> [<c0021c74>] (cpu_idle+0x0/0x58) from [<c0263be4>] (rest_init+0x58/0x6c)
> r7:c0326344 r6:c001dd60 r5:c0342450 r4:c034dfc4
> [<c0263b8c>] (rest_init+0x0/0x6c) from [<c00089c0>] (start_kernel+0x210/0x264)
> [<c00087b0>] (start_kernel+0x0/0x264) from [<00008034>] (0x8034)
> r6:c001e164 r5:c03426d8 r4:000039fd
> Code: e50b302c e06a1002 5a000002 e3a03000 (e5833000)
If there was any followup to this, I can't find it. I see similar
problems with 2.6.33.1:
BUG: failure at net/ipv4/tcp_input.c:4665/tcp_collapse()!
Kernel panic - not syncing: BUG!
Call Trace:
[<20002a20>] microblaze_unwind+0x30/0x50
[<20002724>] show_stack+0x130/0x16c
[<20002768>] dump_stack+0x8/0x20
[<2000b5a0>] panic+0x78/0x1f4
[<20177e50>] tcp_collapse+0x358/0x42c
[<20178110>] tcp_prune_queue+0x1ec/0x2c8
[<201783d8>] tcp_data_queue+0x1ec/0xd30
[<2017cb78>] tcp_rcv_established+0x724/0x800
[<20182eb8>] tcp_v4_do_rcv+0x34/0x1d8
[<20185014>] tcp_v4_rcv+0x504/0x814
[<2016585c>] ip_local_deliver+0x118/0x1ec
[<20165e50>] ip_rcv+0x520/0x5ac
[<201468e4>] netif_receive_skb+0x2ec/0x338
[<201469b8>] process_backlog+0x88/0xec
[<2014ad20>] net_rx_action+0x84/0x1b8
[<20011244>] __do_softirq+0x94/0x148
[<20011328>] do_softirq+0x30/0x54
[<2001161c>] irq_exit+0x30/0x48
[<2000114c>] do_IRQ+0xcc/0xf8
IRQ
[<200d6b40>] strncpy+0x1c/0x30
[<200da618>] strncpy_from_user+0x40/0x88
[<2005a374>] getname+0x84/0xf4
[<2004dff8>] do_sys_open+0x28/0xe4
[<2004e0e4>] sys_open+0x14/0x2c
SYSCALL
[<2d19d33c>] PID 88 [syslogd]
Any suggestions on how to pin this down?
------------------------------------------------------------------------
Steven J. Magnani "I claim this network for MARS!
www.digidescorp.com Earthling, return my space modulator!"
#include <standard.disclaimer>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2009-11-11 11:22 Oops from tcp_collapse() when using splice() Karl Hiramoto
2009-11-11 11:38 ` Karl Hiramoto
[not found] <1269538271.3012.92.camel@iscandar.digidescorp.com>
2010-03-25 17:38 ` Steven J. Magnani
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